Commit Graph

6167 Commits

Author SHA1 Message Date
Peter Ujfalusi 868772d89d ARM: OMAP2+: DMA: Add slave map entries for 24xx external request lines
The external request lines are used by tusb6010 on OMAP24xx platforms.
Update the map so the driver can use dmaengine API to request the DMA
channel. At the same time add temporary map containing only the external
DMA request numbers for DT booted case on omap24xx since the tusb6010 stack
is not yet supports DT boot.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-20 11:45:01 +08:00
Olof Johansson 2b1ee3061f SoC changes for omap variants for v4.13 merge window:
- PM clean-up in preparation of adding am335x/am437x PM support
 
 - Fixes for issues found by Coccinelle
 
 - Legacy code removal now that everything boots in device
   tree only mode
 
 - Interconnect changes in preparation of moving clkctrl clocks
   to be managed by clkctrl clock driver
 
 - Interconnect changes to add omap4 crypto acceclerator
   support
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Merge tag 'omap-for-v4.13/soc-v4-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc

SoC changes for omap variants for v4.13 merge window:

- PM clean-up in preparation of adding am335x/am437x PM support

- Fixes for issues found by Coccinelle

- Legacy code removal now that everything boots in device
  tree only mode

- Interconnect changes in preparation of moving clkctrl clocks
  to be managed by clkctrl clock driver

- Interconnect changes to add omap4 crypto acceclerator
  support

* tag 'omap-for-v4.13/soc-v4-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (27 commits)
  ARM: OMAP4: hwmod_data: add SHAM crypto accelerator
  ARM: OMAP4: hwmod data: add des
  ARM: OMAP4: hwmod data: add aes2
  ARM: OMAP4: hwmod data: add aes1
  ARM: OMAP2+: Remove unused legacy code for n8x0
  ARM: OMAP2+: Remove unused legacy code for watchdog
  ARM: OMAP2+: Remove unused legacy code for interconnects
  ARM: OMAP2+: Remove unused legacy code for PRM
  ARM: OMAP2+: Remove unused legacy code for io.c
  ARM: OMAP2+: Remove unused legacy code for McBSP
  ARM: OMAP2+: SmartReflex: Delete an error message for a failed memory allocation in two functions
  ARM: OMAP2+: Use kcalloc() in sr_set_nvalues()
  ARM: OMAP2+: Improve a size determination in sr_dev_init()
  ARM: OMAP2+: Delete an error message for a failed memory allocation in two functions
  ARM: OMAP2+: Remove unused legacy code for device init
  ARM: OMAP2+: Remove unused legacy code for PMU
  ARM: OMAP2+: Remove unused legacy code for opp
  ARM: OMAP2+: hwmod: populate clkctrl clocks for hwmods if available
  ARM: OMAP4: cminst: add support for clkdm_xlate_address
  ARM: omap2+: clockdomain: add clkdm_xlate_address
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-06-18 20:46:30 -07:00
Daniel Lezcano ba5d08c0ea clocksource/drivers: Rename clocksource_probe to timer_probe
The function name is now renamed to 'timer_probe' for consistency with
the CLOCKSOURCE_OF_DECLARE => TIMER_OF_DECLARE change.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
2017-06-14 11:59:16 +02:00
Tero Kristo 1df5eaa6bc ARM: OMAP4: hwmod_data: add SHAM crypto accelerator
OMAP4 SoC contains SHAM crypto hardware accelerator. Add hwmod data for
this IP so that it can be utilized by crypto frameworks.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-06-14 00:53:51 -07:00
Sebastian Reichel ebea90df78 ARM: OMAP4: hwmod data: add des
This fixes the following error during kernel boot:

platform 480a5000.des: Cannot lookup hwmod 'des'

Unfortunately the DES module is only documented partly
in the OMAP4430 TRM. I found an old patch from Joel,
which I took over and updated for currently mainline.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-06-14 00:52:57 -07:00
Sebastian Reichel 478523dd03 ARM: OMAP4: hwmod data: add aes2
This adds the hwmod entry for the second AES module
available on OMAP4.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-06-14 00:52:38 -07:00
Sebastian Reichel 9a9ded89ad ARM: OMAP4: hwmod data: add aes1
This fixes the following error during kernel boot:

platform 4b501000.aes: Cannot lookup hwmod 'aes1'

Unfortunately the AES module is only documented partly
in the OMAP4430 TRM. I found an old patch from Joel,
which I took over and updated for currently mainline.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-06-14 00:51:35 -07:00
Tony Lindgren 67d00470ac Merge branch 'omap-for-v4.13/clkctrl' into omap-for-v4.13/soc-v4 2017-06-12 03:27:30 -07:00
Tony Lindgren 018b732458 Merge branch 'omap-for-v4.13/legacy-v2' into omap-for-v4.13/soc-v3 2017-06-12 00:07:44 -07:00
Tony Lindgren 0e78b1218d ARM: OMAP2+: Remove unused legacy code for n8x0
We are now booting all mach-omap2 in device tree only mode.
Any code that is only called in legacy boot mode where
of_have_populated_dt() is not set is safe to remove now.

Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
[tony@atomide.com: left out probe changes to avoid merge conflict]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-06-08 04:15:10 -07:00
Tony Lindgren 279ebec8f4 ARM: OMAP2+: Remove unused legacy code for watchdog
We are now booting all mach-omap2 in device tree only mode.
Any code that is only called in legacy boot mode where
of_have_populated_dt() is not set is safe to remove now.

Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-06-08 04:15:10 -07:00
Tony Lindgren 1aa8f0cb19 ARM: OMAP2+: Remove unused legacy code for interconnects
We are now booting all mach-omap2 in device tree only mode.
Any code that is only called in legacy boot mode where
of_have_populated_dt() is not set is safe to remove now.

Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-06-08 04:15:10 -07:00
Tony Lindgren 2a26d31b1b ARM: OMAP2+: Remove unused legacy code for PRM
We are now booting all mach-omap2 in device tree only mode.
Any code that is only called in legacy boot mode where
of_have_populated_dt() is not set is safe to remove now.

Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-06-08 04:15:10 -07:00
Tony Lindgren 58a641c827 ARM: OMAP2+: Remove unused legacy code for io.c
We are now booting all mach-omap2 in device tree only mode.
Any code that is only called in legacy boot mode where
of_have_populated_dt() is not set is safe to remove now.

Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-06-08 04:15:10 -07:00
Tony Lindgren 48f6693790 ARM: OMAP2+: Remove unused legacy code for McBSP
We are now booting all mach-omap2 in device tree only mode.
Any code that is only called in legacy boot mode where
of_have_populated_dt() is not set is safe to remove now.

Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-06-08 04:15:10 -07:00
Markus Elfring c76e4d2e50 ARM: OMAP2+: SmartReflex: Delete an error message for a failed memory allocation in two functions
Omit an extra message for a memory allocation failure in these functions.

This issue was detected by using the Coccinelle software.

Link: http://events.linuxfoundation.org/sites/events/files/slides/LCJ16-Refactor_Strings-WSang_0.pdf
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-06-08 03:02:32 -07:00
Markus Elfring 6b72de4d33 ARM: OMAP2+: Use kcalloc() in sr_set_nvalues()
* A multiplication for the size determination of a memory allocation
  indicated that an array data structure should be processed.
  Thus use the corresponding function "kcalloc".

  This issue was detected by using the Coccinelle software.

* Replace the specification of a data structure by a pointer dereference
  to make the corresponding size determination a bit safer according to
  the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-06-08 03:02:31 -07:00
Markus Elfring 1dfb5b59d6 ARM: OMAP2+: Improve a size determination in sr_dev_init()
Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-06-08 03:02:31 -07:00
Markus Elfring 1a61a2a5a6 ARM: OMAP2+: Delete an error message for a failed memory allocation in two functions
Omit an extra message for a memory allocation failure in these functions.

This issue was detected by using the Coccinelle software.

Link: http://events.linuxfoundation.org/sites/events/files/slides/LCJ16-Refactor_Strings-WSang_0.pdf
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-06-08 03:02:31 -07:00
Tony Lindgren 6f3ab009a1 ARM: OMAP2+: Remove unused legacy code for device init
We are now booting all mach-omap2 in device tree only mode.
Any code that is only called in legacy boot mode where
of_have_populated_dt() is not set is safe to remove now.

Note that omap_init_sti() won't do anything so we can
remove omap2_init_devices() as pointed out by Sebastian
Reichel <sebastian.reichel@collabora.co.uk>.

Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-06-08 02:57:38 -07:00
Tony Lindgren 7bd6934477 ARM: OMAP2+: Remove unused legacy code for PMU
We are now booting all mach-omap2 in device tree only mode.
Any code that is only called in legacy boot mode where
of_have_populated_dt() is not set is safe to remove now.

Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-06-08 02:57:27 -07:00
Tony Lindgren 99b3587deb ARM: OMAP2+: Remove unused legacy code for opp
We are now booting all mach-omap2 in device tree only mode.
Any code that is only called in legacy boot mode where
of_have_populated_dt() is not set is safe to remove now.

Note that the volt_data is still being used.

Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-06-08 02:57:16 -07:00
Tero Kristo 70f05be321 ARM: OMAP2+: hwmod: populate clkctrl clocks for hwmods if available
If clkctrl clocks are available on a device, populate these automatically
to replace hwmod main_clk info. First, the patch parses all "ti,clkctrl"
compatible nodes and maps these against existing clockdomain data. Once
done, individual hwmod init routines can search for a clkctrl clock
handle based on the clockdomain info and the created mapping.

This patch also drops the obsolete "_mod_ck" search as the implementation
required for this was not accepted usptream.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-06-06 00:14:06 -07:00
Tero Kristo 308b4e381b ARM: OMAP4: cminst: add support for clkdm_xlate_address
This function gets the physical base address of a clockdomain.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-06-06 00:14:01 -07:00
Tero Kristo 0bf76e00e5 ARM: omap2+: clockdomain: add clkdm_xlate_address
This new function can be used to get the physical address of a
clockdomain. Required for mapping the clkctrl clocks under hwmod
without modification to DT data.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-06-06 00:13:56 -07:00
Tero Kristo 9012933671 ARM: OMAP2+: PRCM: store also physical addresses for instances
In some cases the physical address info is needed, so store this
under the existing cm*_base, prm_base and prcm_mpu_base variables.
These are converted now to structs that contain both virtual and
physical address base for the instance.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-06-06 00:13:51 -07:00
Tero Kristo 24d8d498a8 ARM: OMAP4: hwmod_data: add opt clks for dss_hdmi and dss_venc
These extra optional clocks are required as main clock for these modules
are going to be routed to the main module clock. Otherwise, the hdmi / tv
clocks are not going to be enabled during usage, leading to failure.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-06-06 00:13:46 -07:00
Tero Kristo 138f7ca78f ARM: OMAP2+: timer: add support for fetching fck handle from DT
The mux clock handle shall be provided via "fck" DT handle. This avoids
the need to lookup the main clock via hwmod core, which will not work
with the clkctrl clock support anymore; the main clock is not going to
be a mux.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-06-06 00:13:41 -07:00
Tony Lindgren 8d39ff3d16 ARM: OMAP2+: Remove unused legacy code for timer
We are now booting all mach-omap2 in device tree only mode.
Any code that is only called in legacy boot mode where
of_have_populated_dt() is not set is safe to remove now.

Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-06-06 00:02:36 -07:00
Arnd Bergmann 0527873b29 ARM: remove duplicate 'const' annotations'
gcc-7 warns about some declarations that are more 'const' than necessary:

arch/arm/mach-at91/pm.c:338:34: error: duplicate 'const' declaration specifier [-Werror=duplicate-decl-specifier]
 static const struct of_device_id const ramc_ids[] __initconst = {
arch/arm/mach-bcm/bcm_kona_smc.c:36:34: error: duplicate 'const' declaration specifier [-Werror=duplicate-decl-specifier]
 static const struct of_device_id const bcm_kona_smc_ids[] __initconst = {
arch/arm/mach-spear/time.c:207:34: error: duplicate 'const' declaration specifier [-Werror=duplicate-decl-specifier]
 static const struct of_device_id const timer_of_match[] __initconst = {
arch/arm/mach-omap2/prm_common.c:714:34: error: duplicate 'const' declaration specifier [-Werror=duplicate-decl-specifier]
 static const struct of_device_id const omap_prcm_dt_match_table[] __initconst = {
arch/arm/mach-omap2/vc.c:562:35: error: duplicate 'const' declaration specifier [-Werror=duplicate-decl-specifier]
 static const struct i2c_init_data const omap4_i2c_timing_data[] __initconst = {

The ones in arch/arm were apparently all introduced accidentally by one
commit that correctly marked a lot of variables as __initconst.

Fixes: 19c233b79d ("ARM: appropriate __init annotation for const data")
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Krzysztof Hałasa <khalasa@piap.pl>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2017-05-19 10:12:55 +02:00
Olof Johansson 5252d73756 Linux 4.12-rc1
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Merge tag 'v4.12-rc1' into fixes

We've received a few fixes branches with -rc1 as base, but our contents was
still at pre-rc1. Merge it in expliticly to make 'git merge --log' clear on
hat was actually merged.

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-05-18 23:54:47 -07:00
Dave Gerlach 33d3842d64 ARM: OMAP2+: pm: Remove __init from omap_pm_clkdms_setup
omap_pm_clkdms_setup gets called from pm init functions and now that
pm33xx and pm43xx can be loaded as modules this must be kept to be
called at any point during runtime.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-05-16 08:44:58 -07:00
Dave Gerlach 12b28ba6d6 ARM: OMAP2+: timer: Add suspend-resume callbacks for clkevent device
OMAP timer code registers two timers - one as clocksource
and one as clockevent. Since AM33XX has only one usable timer
in the WKUP domain one of the timers needs suspend-resume
support to restore the configuration to pre-suspend state.

commit adc78e6b99 ("timekeeping: Add suspend and resume
of clock event devices") introduced .suspend and .resume
callbacks for clock event devices. Leverage these
callbacks to have AM33XX clockevent timer behave properly
across system suspend. Extend the use of the .suspend and
.resume callbacks used by am335x clockevent to am437x as well.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-05-16 08:44:49 -07:00
Dave Gerlach e1a9e61e14 ARM: OMAP: Wakeupgen: Add context save/restore for AM43XX
AM43XX has the same wakeupgen IP as OMAP4/5. The only
notable difference is the presence of 7 register banks
and lack of SAR area which has been used in OMAP4/5 for
saving and restoring the context around low power states.

In case of AM43XX the context is saved and restored by
the kernel. Introduce wakeupgen_ops so that context save
and restore can be set on a per-SoC basis during init.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-05-16 08:44:31 -07:00
Linus Torvalds b5a53b61a2 Sort of on the quieter side this time, which is probably due more
to me not catching up as quickly on patch review than anything else.
 Overall it seems normal though, a few small changes to the core, mostly
 small non-critical fixes here and there as well as driver updates for new
 and existing hardware support. The biggest things are the TI clk driver
 rework to lay the groundwork for clkctrl support in the next merge window
 and the AmLogic audio/graphics clk support.
 
 Core:
  * clk_possible_parents debugfs file so we know which parents a clk
    could possibly have
  * Fix to make clk rate change notifiers stop on the first failure instead
    of continuing
 
 New Drivers:
  * Mediatek MT6797 SoCs
  * hi655x PMIC clks
  * AmLogic Meson SoC i2s and spdif audio clks and Mali graphics clks
  * Allwinner H5 SoCs and PRCM hardware
 
 Updates:
  * Nvidia Tegra T210 cleanups and non-critical fixes
  * TI OMAP cleanups in preparation for clkctrl support
  * Trivial fixes like kcalloc(), devm_* conversions, and seq_puts()
  * ZTE zx296718 SoC VGA clks
  * Rockchip clk-ids, fixups, and rename of rk1108 to rv1108
  * Support for IDT VersaClock 5P49V5935
  * Renesas R-Car H3 and M3-W IMR clks and ES2.0 rev of R-Car H3 support
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "Sort of on the quieter side this time, which is probably due more to
  me not catching up as quickly on patch review than anything else.
  Overall it seems normal though, a few small changes to the core,
  mostly small non-critical fixes here and there as well as driver
  updates for new and existing hardware support.

  The biggest things are the TI clk driver rework to lay the groundwork
  for clkctrl support in the next merge window and the AmLogic
  audio/graphics clk support.

  Core:
   - clk_possible_parents debugfs file so we know which parents a clk
     could possibly have
   - Fix to make clk rate change notifiers stop on the first failure
     instead of continuing

  New Drivers:
   - Mediatek MT6797 SoCs
   - hi655x PMIC clks
   - AmLogic Meson SoC i2s and spdif audio clks and Mali graphics clks
   - Allwinner H5 SoCs and PRCM hardware

  Updates:
   - Nvidia Tegra T210 cleanups and non-critical fixes
   - TI OMAP cleanups in preparation for clkctrl support
   - trivial fixes like kcalloc(), devm_* conversions, and seq_puts()
   - ZTE zx296718 SoC VGA clks
   - Rockchip clk-ids, fixups, and rename of rk1108 to rv1108
   - IDT VersaClock 5P49V5935 support
   - Renesas R-Car H3 and M3-W IMR clks and ES2.0 rev of R-Car H3
     support"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (151 commits)
  clk: x86: pmc-atom: Checking for IS_ERR() instead of NULL
  clk: ti: divider: try to fix ti_clk_register_divider
  clk: mvebu: Use kcalloc() in two functions
  clk: mvebu: Use kcalloc() in of_cpu_clk_setup()
  clk: nomadik: Delete error messages for a failed memory allocation in two functions
  clk: nomadik: Use seq_puts() in nomadik_src_clk_show()
  clk: Improve a size determination in two functions
  clk: Replace four seq_printf() calls by seq_putc()
  clk: si5351: Delete an error message for a failed memory allocation in si5351_i2c_probe()
  clk: si5351: Use devm_kcalloc() in si5351_i2c_probe()
  clk: at91: Use kcalloc() in of_at91_clk_pll_get_characteristics()
  reset: mediatek: Add MT2701 ethsys reset controller include file
  clk: mediatek: add mt2701 ethernet reset
  clk: hi6220: Add the hi655x's pmic clock
  clk: ti: fix building without legacy omap3
  clk: ti: fix linker error with !SOC_OMAP4
  clk: hi3620: Fix a typo in one variable name
  clk: hi3620: Delete error messages for a failed memory allocation in two functions
  clk: hi3620: Use kcalloc() in hi3620_mmc_clk_init()
  clk: hisilicon: Delete error messages for failed memory allocations in hisi_clk_init()
  ...
2017-05-10 13:38:18 -07:00
Arnd Bergmann 6f92120892 ARM: omap2+: make omap4_get_cpu1_ns_pa_addr declaration usable
When CONFIG_PM is disabled, we get a build error:

arch/arm/mach-omap2/omap-smp.c: In function 'omap4_smp_maybe_reset_cpu1':
arch/arm/mach-omap2/omap-smp.c:309:20: error: implicit declaration of function 'omap4_get_cpu1_ns_pa_addr'; did you mean 'omap4_get_scu_base'? [-Werror=implicit-function-declaration]

We need to fix this in multiple files, to ensure the declaration is visible,
to actually build the function without CONFIG_PM, and to only call it
when OMAP4 and/or OMAP5 are enabled.

Fixes: 351b7c4907 ("ARM: omap2+: Revert omap-smp.c changes resetting CPU1 during boot")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Tony Lindgren <tony@atomide.com>
2017-05-09 21:13:25 +02:00
Linus Torvalds 8d648aad05 ARM: SoC platform updates
SoC platform changes (arch/arm/mach-*). This merge window, the bulk is
 for a few platforms:
 
 * Gemini:
  - Legacy platform that Linus Walleij has converted to multiplatform
    and DT, so a handful of various tweaks there, removal of some old
    stale support, etc.
 
 * Atmel AT91:
  - Fixup of various power management related pieces
  - Move of SoC detection to a drivers/soc driver instead
 
 * ST Micro STM32:
  - New SoC support: STM32H743
 
 * TI platforms:
  - More driver support for Davinci (SATA in particular)
  - Removal of some old stale hwmod files (linkspace platform)
 
 * Misc:
  - A couple of smaller patches for i.MX, sunxi, hisi
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates from Olof Johansson:
 "SoC platform changes (arch/arm/mach-*). This merge window, the bulk is
  for a few platforms:

  Gemini:
   - Legacy platform that Linus Walleij has converted to multiplatform
     and DT, so a handful of various tweaks there, removal of some old
     stale support, etc.

  Atmel AT91:
   - Fixup of various power management related pieces
   - Move of SoC detection to a drivers/soc driver instead

  ST Micro STM32:
   - New SoC support: STM32H743

  TI platforms:
   - More driver support for Davinci (SATA in particular)
   - Removal of some old stale hwmod files (linkspace platform)

  Misc:
   - A couple of smaller patches for i.MX, sunxi, hisi"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (57 commits)
  ARM: davinci: Add clock for CPPI 4.1 DMA engine
  ARM: mxs: add support for I2SE Duckbill 2 boards
  MAINTAINERS: Update the Allwinner sunXi entry
  ARM: i.MX25: globally disable supervisor protect
  ARM: at91: move SoC detection to its own driver
  ARM: at91: pm: correct typo
  ARM: at91: pm: Remove at91_pm_set_standby
  ARM: at91: pm: Merge all at91sam9*_pm_init
  ARM: at91: pm: Tie the USB clock mask to the pmc
  ARM: at91: pm: Tie the memory controller type to the ramc id
  ARM: at91: pm: Workaround DDRSDRC self-refresh bug with LPDDR1 memories.
  ARM: at91: pm: Simplify at91rm9200_standby
  ARM: at91: pm: Use struct at91_pm_data in pm_suspend.S
  ARM: at91: pm: Move global variables into at91_pm_data
  ARM: at91: pm: Move at91_ramc_read/write to pm.c
  ARM: at91: pm: Cleanup headers
  MAINTAINERS: Add memory drivers to AT91 entry
  MAINTAINERS: Update AT91 entry
  ARM: davinci: add pata_bk3710 libata driver support
  ARM: OMAP2+: mark omap_init_rng as __init
  ...
2017-05-09 09:49:36 -07:00
Linus Torvalds 857f864014 pci-v4.12-changes
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Merge tag 'pci-v4.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:

 - add framework for supporting PCIe devices in Endpoint mode (Kishon
   Vijay Abraham I)

 - use non-postable PCI config space mappings when possible (Lorenzo
   Pieralisi)

 - clean up and unify mmap of PCI BARs (David Woodhouse)

 - export and unify Function Level Reset support (Christoph Hellwig)

 - avoid FLR for Intel 82579 NICs (Sasha Neftin)

 - add pci_request_irq() and pci_free_irq() helpers (Christoph Hellwig)

 - short-circuit config access failures for disconnected devices (Keith
   Busch)

 - remove D3 sleep delay when possible (Adrian Hunter)

 - freeze PME scan before suspending devices (Lukas Wunner)

 - stop disabling MSI/MSI-X in pci_device_shutdown() (Prarit Bhargava)

 - disable boot interrupt quirk for ASUS M2N-LR (Stefan Assmann)

 - add arch-specific alignment control to improve device passthrough by
   avoiding multiple BARs in a page (Yongji Xie)

 - add sysfs sriov_drivers_autoprobe to control VF driver binding
   (Bodong Wang)

 - allow slots below PCI-to-PCIe "reverse bridges" (Bjorn Helgaas)

 - fix crashes when unbinding host controllers that don't support
   removal (Brian Norris)

 - add driver for MicroSemi Switchtec management interface (Logan
   Gunthorpe)

 - add driver for Faraday Technology FTPCI100 host bridge (Linus
   Walleij)

 - add i.MX7D support (Andrey Smirnov)

 - use generic MSI support for Aardvark (Thomas Petazzoni)

 - make Rockchip driver modular (Brian Norris)

 - advertise 128-byte Read Completion Boundary support for Rockchip
   (Shawn Lin)

 - advertise PCI_EXP_LNKSTA_SLC for Rockchip root port (Shawn Lin)

 - convert atomic_t to refcount_t in HV driver (Elena Reshetova)

 - add CPU IRQ affinity in HV driver (K. Y. Srinivasan)

 - fix PCI bus removal in HV driver (Long Li)

 - add support for ThunderX2 DMA alias topology (Jayachandran C)

 - add ThunderX pass2.x 2nd node MCFG quirk (Tomasz Nowicki)

 - add ITE 8893 bridge DMA alias quirk (Jarod Wilson)

 - restrict Cavium ACS quirk only to CN81xx/CN83xx/CN88xx devices
   (Manish Jaggi)

* tag 'pci-v4.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (146 commits)
  PCI: Don't allow unbinding host controllers that aren't prepared
  ARM: DRA7: clockdomain: Change the CLKTRCTRL of CM_PCIE_CLKSTCTRL to SW_WKUP
  MAINTAINERS: Add PCI Endpoint maintainer
  Documentation: PCI: Add userguide for PCI endpoint test function
  tools: PCI: Add sample test script to invoke pcitest
  tools: PCI: Add a userspace tool to test PCI endpoint
  Documentation: misc-devices: Add Documentation for pci-endpoint-test driver
  misc: Add host side PCI driver for PCI test function device
  PCI: Add device IDs for DRA74x and DRA72x
  dt-bindings: PCI: dra7xx: Add DT bindings to enable unaligned access
  PCI: dwc: dra7xx: Workaround for errata id i870
  dt-bindings: PCI: dra7xx: Add DT bindings for PCI dra7xx EP mode
  PCI: dwc: dra7xx: Add EP mode support
  PCI: dwc: dra7xx: Facilitate wrapper and MSI interrupts to be enabled independently
  dt-bindings: PCI: Add DT bindings for PCI designware EP mode
  PCI: dwc: designware: Add EP mode support
  Documentation: PCI: Add binding documentation for pci-test endpoint function
  ixgbe: Use pcie_flr() instead of duplicating it
  IB/hfi1: Use pcie_flr() instead of duplicating it
  PCI: imx6: Fix spelling mistake: "contol" -> "control"
  ...
2017-05-08 19:03:25 -07:00
Kees Cook 063246641d format-security: move static strings to const
While examining output from trial builds with -Wformat-security enabled,
many strings were found that should be defined as "const", or as a char
array instead of char pointer.  This makes some static analysis easier,
by producing fewer false positives.

As these are all trivial changes, it seemed best to put them all in a
single patch rather than chopping them up per maintainer.

Link: http://lkml.kernel.org/r/20170405214711.GA5711@beast
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Jes Sorensen <jes@trained-monkey.org>	[runner.c]
Cc: Tony Lindgren <tony@atomide.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: "Maciej W. Rozycki" <macro@linux-mips.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: David Airlie <airlied@linux.ie>
Cc: Yisen Zhuang <yisen.zhuang@huawei.com>
Cc: Salil Mehta <salil.mehta@huawei.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Matt Redfearn <matt.redfearn@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Mugunthan V N <mugunthanvnm@ti.com>
Cc: Felipe Balbi <felipe.balbi@linux.intel.com>
Cc: Jarod Wilson <jarod@redhat.com>
Cc: Florian Westphal <fw@strlen.de>
Cc: Antonio Quartulli <a@unstable.cc>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Kejian Yan <yankejian@huawei.com>
Cc: Daode Huang <huangdaode@hisilicon.com>
Cc: Qianqian Xie <xieqianqian@huawei.com>
Cc: Philippe Reynes <tremyfr@gmail.com>
Cc: Colin Ian King <colin.king@canonical.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Christian Gromm <christian.gromm@microchip.com>
Cc: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Cc: Jason Litzinger <jlitzingerdev@gmail.com>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-08 17:15:14 -07:00
Kishon Vijay Abraham I 2c949ce38f ARM: DRA7: clockdomain: Change the CLKTRCTRL of CM_PCIE_CLKSTCTRL to SW_WKUP
The PCIe programming sequence in TRM suggests CLKSTCTRL of PCIe should be
set to SW_WKUP. There are no issues when CLKSTCTRL is set to HW_AUTO in RC
mode. However in EP mode, the host system is not able to access the
MEMSPACE and setting the CLKSTCTRL to SW_WKUP fixes it.

Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-04-28 10:23:20 -05:00
Dave Gerlach 04abaf07f6 ARM: OMAP2+: omap_device: Sync omap_device and pm_runtime after probe defer
Starting from commit 5de85b9d57 ("PM / runtime: Re-init runtime PM
states at probe error and driver unbind") pm_runtime core now changes
device runtime_status back to after RPM_SUSPENDED after a probe defer.
Certain OMAP devices make use of "ti,no-idle-on-init" flag which causes
omap_device_enable to be called during the BUS_NOTIFY_ADD_DEVICE event
during probe, along with pm_runtime_set_active.

This call to pm_runtime_set_active typically will prevent a call to
pm_runtime_get in a driver probe function from re-enabling the
omap_device. However, in the case of a probe defer that happens before
the driver probe function is able to run, such as a missing pinctrl
states defer, pm_runtime_reinit will set the device as RPM_SUSPENDED and
then once driver probe is actually able to run, pm_runtime_get will see
the device as suspended and call through to the omap_device layer,
attempting to enable the already enabled omap_device and causing errors
like this:

omap-gpmc 50000000.gpmc: omap_device: omap_device_enable() called from
invalid state 1
omap-gpmc 50000000.gpmc: use pm_runtime_put_sync_suspend() in driver?

We can avoid this error by making sure the pm_runtime status of a device
matches the omap_device state before a probe attempt. By extending the
omap_device bus notifier to act on the BUS_NOTIFY_BIND_DRIVER event we
can check if a device is enabled in omap_device but with a pm_runtime
status of RPM_SUSPENDED and once again mark the device as RPM_ACTIVE to
avoid a second incorrect call to omap_device_enable.

Fixes: 5de85b9d57 ("PM / runtime: Re-init runtime PM states at probe
error and driver unbind")
Tested-by: Franklin S Cooper Jr. <fcooper@ti.com>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-04-04 08:49:56 -07:00
Arnd Bergmann f0e6876606 ARM: OMAP2+: mark omap_init_rng as __init
I found this section mismatch when building with an older
compiler release:

WARNING: vmlinux.o(.text+0x3051c): Section mismatch in reference from the
function omap_init_rng() to the function .init.text:omap_device_build()

Obviously this one function should be __init as well. Normally
we don't get a warning as the function gets inlined into its
caller.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[tony@atomide.com: formatted error message a bit]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-28 14:10:09 -07:00
Kevin Hilman 49e9e6163c ARM: OMAP2+: dm81xx: Add clkdm and hwmod for SATA
Add the SATA clockdomain (part of CM_DEFAULT) and a hwmod for the SATA
block on dm81xx.

Tested on DM8168 EVM.

Signed-off-by: Kevin Hilman <khilman@baylibre.com>
[Bartosz: removed an unused define]
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-28 14:10:03 -07:00
Roger Quadros e2d54fe769 ARM: DRA7: hwmod_data: Prevent wait_target_disable error for usb_otg_ss
It seems that if L3_INIT clkdomain is kept in HW_AUTO while usb_otg_ss
is in use then there are random chances that the usb_otg_ss module
will fail to completely idle. i.e. IDLEST = 0x2 instead of 0x3.

Preventing L3_INIT from HW_AUTO while usb_otg_ss module is in use
fixes this issue.

We don't know yet if usb_otg_ss instances 3 and 4 are affected by this
issue or not so don't add this flag for those instances.

Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-28 14:09:58 -07:00
Roger Quadros a241623836 ARM: DRA7: hwmod: Fix DCAN1 stuck in transition
Add HWMOD_CLKDM_NOAUTO flag to DCAN1 module.

Without this DCAN1 module remains stuck in transition
after the CAN interface is brought down. This is also suggested
in Errata i893 "DCAN Initialization Sequence".

Add the HWMOD_CLKDM_NOAUTO to DCAN2 module as well
as it is mentioned in Errata i893.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-28 14:09:54 -07:00
Tony Lindgren 351b7c4907 ARM: omap2+: Revert omap-smp.c changes resetting CPU1 during boot
Commit 3251885285 ("ARM: OMAP4+: Reset CPU1 properly for kexec") started
unconditionally resetting CPU1 because of a kexec boot issue I was seeing
earlier on omap4 when doing kexec boot between two different kernel
versions.

This caused issues on some systems. We should only reset CPU1 as a last
resort option, and try to avoid it where possible. Doing an unconditional
CPU1 reset causes issues for example when booting a bootloader configured
secure OS running on CPU1 as reported by Andrew F. Davis <afd@ti.com>.

We can't completely remove the reset of CPU1 as it would break kexec
booting from older kernels. But we can limit the CPU1 reset to cases
where CPU1 is wrongly parked within the memory area used by the booting
kernel. Then later on we can add support for parking CPU1 for kexec out
of the SDRAM back to bootrom.

So let's first fix the regression reported by Andrew by making CPU1 reset
conditional. To do this, we need to:

1. Save configured AUX_CORE_BOOT_1 for later

2. Modify AUX_CORE_BOOT_0 reading code to for HS SoCs to return
   the whole register instead of the CPU mask

3. Check if CPU1 is wrongly parked into the booting kernel by the
   previous kernel and reset if needed

Fixes: 3251885285 ("ARM: OMAP4+: Reset CPU1 properly for kexec")
Reported-by: Andrew F. Davis <afd@ti.com>
Cc: Andrew F. Davis <afd@ti.com>
Cc: Keerthy <j-keerthy@ti.com>
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Cc: Santosh Shilimkar <ssantosh@kernel.org>
Cc: Tero Kristo <t-kristo@ti.com>
Tested-by: Keerthy <j-keerthy@ti.com>
Tested-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-27 10:10:42 -07:00
Roger Quadros 8ff42da411 ARM: OMAP2+ hwmod: Allow modules to disable HW_AUTO
Introduce HWMOD_CLKDM_NOAUTO flag that allows the hwmod's
clockdomain to be prevented from HW_AUTO while the hwmod is active.

This is needed to workaround some modules which don't function
correctly with HW_AUTO. e.g. DCAN on DRA7.

Signed-off-by: Roger Quadros <rogerq@ti.com>
[nsekhar@ti.com: rebased to v4.9 kernel]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-23 13:19:59 -07:00
Sekhar Nori 390c06828d ARM: OMAP2+: omap_hwmod: provide space for more hwmod flags
'flags' member of omap_hwmod structure is fast running
out of space with 16 different flags already defined.

Make flags a 32-bit entity so as to allow for more flags.

This results is a ~2.3K data section size increase with
omap2plus_defconfig on v4.11-rc2.

before:
   text	   data	    bss	    dec	    hex	filename
8186930	3082444	8252992	19522366	129e33e	vmlinux

after:
   text	   data	    bss	    dec	    hex	filename
8186922	3084812	8252992	19524726	129ec76	vmlinux

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-23 13:19:26 -07:00
Tony Lindgren 6bff547451 Merge branch 'hwmod-cleanup' into omap-for-v4.12/soc 2017-03-23 11:31:46 -07:00
Tony Lindgren 3cdf2f800b ARM: OMAP2+: Make hwmod clkdm_name const
This can be const, and will need to be const when we start initializing
it from clkdm data.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-14 13:13:20 -07:00
Tony Lindgren ca5339b18c ARM: OMAP2+: Remove unused CLOCKACT_TEST_ICLK
This is not used so let's remove it.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-14 13:13:19 -07:00
Tony Lindgren b8e1bddc98 ARM: OMAP2+: Use list_for_each_entry for hwmod slave_ports
We are just iterating over the slave_ports lists, so we can
use list_for_each_entry() no problem.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-14 13:13:19 -07:00
Tony Lindgren a1e312355d ARM: OMAP2+: Remove mostly unused hwmod linkspace
We want to be able to dynamically allocate struct omap_hwmod_ocp_if and
struct omap_hwmod at device driver probe time based on .dts data.

Current setup with the linkspace using memblock_virt_alloc() makes
this tricky, so let's get rid of struct linkspace and directly set up
struct omap_hwmod_ocp_if as the master and slave lists.

As we are currently not using the master_ports either, let's remove it
too. And let's add the struct omap_hwmod_ocp_if node directly to the
slave_ports list.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-14 13:13:19 -07:00
Tero Kristo 6c0afb5039 clk: ti: convert to use proper register definition for all accesses
Currently, TI clock driver uses an encapsulated struct that is cast into
a void pointer to store all register addresses. This can be considered
as rather nasty hackery, and prevents from expanding the register
address field also. Instead, replace all the code to use proper struct
in place for this, which contains all the previously used data.

This patch is rather large as it is touching multiple files, but this
can't be split up as we need to avoid any boot breakage.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2017-03-08 13:06:15 +02:00
Tero Kristo 2e1a294c0f clk: ti: move omap2_init_clk_clkdm under TI clock driver
This is not needed outside the driver, so move it inside it and remove
the prototype from the public header also.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2017-03-08 12:59:30 +02:00
Tero Kristo b6f27b2db2 clk: ti: add clkdm_lookup to the exported functions
This will be needed to move some additional clockdomain functionality
under clock driver.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2017-03-08 12:58:41 +02:00
Geert Uytterhoeven 342bef7c88 ARM: OMAP: PM: Drop useless checks for PM_SUSPEND_STANDBY
As OMAP uses the standard suspend_valid_only_mem() for its
platform_suspend_ops.valid() callback, its platform_suspend_ops.enter()
callback will never be called with state equal to PM_SUSPEND_STANDBY.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-06 10:38:19 -08:00
Tony Lindgren e24bce8fb4 Linux 4.11-rc1
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Merge tag 'v4.11-rc1' into omap-for-v4.11/fixes

Linux 4.11-rc1
2017-03-06 08:37:53 -08:00
Guenter Roeck b92675d998 ARM: OMAP2+: Release device node after it is no longer needed.
The device node returned by of_find_node_by_name() needs to be released
after it is no longer needed to avoid a device node leak.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-04 08:27:50 -08:00
Guenter Roeck 10e5778f54 ARM: OMAP2+: Fix device node reference counts
After commit 0549bde0fc ("of: fix of_node leak caused in
of_find_node_opts_by_path"), the following error may be
reported when running omap images.

OF: ERROR: Bad of_node_put() on /ocp@68000000
CPU: 0 PID: 0 Comm: swapper Not tainted 4.10.0-rc7-next-20170210 #1
Hardware name: Generic OMAP3-GP (Flattened Device Tree)
[<c0310604>] (unwind_backtrace) from [<c030bbf4>] (show_stack+0x10/0x14)
[<c030bbf4>] (show_stack) from [<c05add8c>] (dump_stack+0x98/0xac)
[<c05add8c>] (dump_stack) from [<c05af1b0>] (kobject_release+0x48/0x7c)
[<c05af1b0>] (kobject_release)
	from [<c0ad1aa4>] (of_find_node_by_name+0x74/0x94)
[<c0ad1aa4>] (of_find_node_by_name)
	from [<c1215bd4>] (omap3xxx_hwmod_is_hs_ip_block_usable+0x24/0x2c)
[<c1215bd4>] (omap3xxx_hwmod_is_hs_ip_block_usable) from
[<c1215d5c>] (omap3xxx_hwmod_init+0x180/0x274)
[<c1215d5c>] (omap3xxx_hwmod_init)
	from [<c120faa8>] (omap3_init_early+0xa0/0x11c)
[<c120faa8>] (omap3_init_early)
	from [<c120fb2c>] (omap3430_init_early+0x8/0x30)
[<c120fb2c>] (omap3430_init_early)
	from [<c1204710>] (setup_arch+0xc04/0xc34)
[<c1204710>] (setup_arch) from [<c1200948>] (start_kernel+0x68/0x38c)
[<c1200948>] (start_kernel) from [<8020807c>] (0x8020807c)

of_find_node_by_name() drops the reference to the passed device node.
The commit referenced above exposes this problem.

To fix the problem, use of_get_child_by_name() instead of
of_find_node_by_name(); of_get_child_by_name() does not drop
the reference count of passed device nodes. While semantically
different, we only look for immediate children of the passed
device node, so of_get_child_by_name() is a more appropriate
function to use anyway.

Release the reference to the device node obtained with
of_get_child_by_name() after it is no longer needed to avoid
another device node leak.

While at it, clean up the code and change the return type of
omap3xxx_hwmod_is_hs_ip_block_usable() to bool to match its use
and the return type of of_device_is_available().

Cc: Qi Hou <qi.hou@windriver.com>
Cc: Peter Rosin <peda@axentia.se>
Cc: Rob Herring <robh@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-04 08:27:46 -08:00
Ingo Molnar e601757102 sched/headers: Prepare for new header dependencies before moving code to <linux/sched/clock.h>
We are going to split <linux/sched/clock.h> out of <linux/sched.h>, which
will have to be picked up from other headers and .c files.

Create a trivial placeholder <linux/sched/clock.h> file that just
maps to <linux/sched.h> to make this patch obviously correct and
bisectable.

Include the new header in the files that are going to need it.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-02 08:42:27 +01:00
Linus Torvalds d4f4cf77b3 Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King:

 - nommu updates from Afzal Mohammed cleaning up the vectors support

 - allow DMA memory "mapping" for nommu Benjamin Gaignard

 - fixing a correctness issue with R_ARM_PREL31 relocations in the
   module linker

 - add strlen() prototype for the decompressor

 - support for DEBUG_VIRTUAL from Florian Fainelli

 - adjusting memory bounds after memory reservations have been
   registered

 - unipher cache handling updates from Masahiro Yamada

 - initrd and Thumb Kconfig cleanups

* 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: (23 commits)
  ARM: mm: round the initrd reservation to page boundaries
  ARM: mm: clean up initrd initialisation
  ARM: mm: move initrd init code out of arm_memblock_init()
  ARM: 8655/1: improve NOMMU definition of pgprot_*()
  ARM: 8654/1: decompressor: add strlen prototype
  ARM: 8652/1: cache-uniphier: clean up active way setup code
  ARM: 8651/1: cache-uniphier: include <linux/errno.h> instead of <linux/types.h>
  ARM: 8650/1: module: handle negative R_ARM_PREL31 addends correctly
  ARM: 8649/2: nommu: remove Hivecs configuration is asm
  ARM: 8648/2: nommu: display vectors base
  ARM: 8647/2: nommu: dynamic exception base address setting
  ARM: 8646/1: mmu: decouple VECTORS_BASE from Kconfig
  ARM: 8644/1: Reduce "CPU: shutdown" message to debug level
  ARM: 8641/1: treewide: Replace uses of virt_to_phys with __pa_symbol
  ARM: 8640/1: Add support for CONFIG_DEBUG_VIRTUAL
  ARM: 8639/1: Define KERNEL_START and KERNEL_END
  ARM: 8638/1: mtd: lart: Rename partition defines to be prefixed with PART_
  ARM: 8637/1: Adjust memory boundaries after reservations
  ARM: 8636/1: Cleanup sanity_check_meminfo
  ARM: add CPU_THUMB_CAPABLE to indicate possible Thumb support
  ...
2017-02-28 11:50:53 -08:00
Ladislav Michl ac28e47ccc ARM: OMAP2+: Remove legacy gpmc-nand.c
This code is no longer used and can be removed as we
are using device tree.

Removing this code also removes a dependency between
drivers/mtd and arch/arm/mach-omap2 making furhter driver
changes easier.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
[tony@atomide.com: removed from header too, updated comments]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-02-28 09:08:33 -08:00
Ladislav Michl 7807e086a2 ARM: OMAP2+: gpmc-onenand: propagate error on initialization failure
gpmc_probe_onenand_child returns success even on gpmc_onenand_init
failure. Fix that.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-02-28 09:06:23 -08:00
Florian Fainelli 64fc2a947a ARM: 8641/1: treewide: Replace uses of virt_to_phys with __pa_symbol
All low-level PM/SMP code using virt_to_phys() should actually use
__pa_symbol() against kernel symbols. Update code where relevant to move
away from virt_to_phys().

Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2017-02-28 11:06:10 +00:00
Masahiro Yamada 183b8021fc scripts/spelling.txt: add "intialization" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  intialization||initialization

The "inintialization" in drivers/acpi/spcr.c is a different pattern but
I fixed it as well in this commit.

Link: http://lkml.kernel.org/r/1481573103-11329-16-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Linus Torvalds 6ae52c65e0 ARM: SoC platform updates
In the SoC branch we normally collect classic arch/arm/mach-* contents, i.e.
 C code changes for SoC platforms. This release cycle the diffstat is quite
 nice, in that we're removing 3x the amount of code that's being added.
 
 The main reason for this is that there's a removal of camera drivers for
 Freescale i.MX chips (driver was removed so the device registration isn't
 needed any more). There's also removal of display initialization code for OMAP
 that is no longer needed.
 
 The rest are mostly minor tweaks and cleanups; constification on Samsung
 platforms, cleanup of ux500 platform data, purge of other unused platform
 data/device seutp on i.MX and other good stuff.
 
 New SoC support this cycle is for two Allwinner platforms, H2+ and V3s.
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates from Arnd Bergmann:
 "In the SoC branch we normally collect classic arch/arm/mach-*
  contents, i.e. C code changes for SoC platforms. This release cycle
  the diffstat is quite nice, in that we're removing 3x the amount of
  code that's being added.

  The main reason for this is that there's a removal of camera drivers
  for Freescale i.MX chips (driver was removed so the device
  registration isn't needed any more). There's also removal of display
  initialization code for OMAP that is no longer needed.

  The rest are mostly minor tweaks and cleanups; constification on
  Samsung platforms, cleanup of ux500 platform data, purge of other
  unused platform data/device seutp on i.MX and other good stuff.

  New SoC support this cycle is for two Allwinner platforms, H2+ and
  V3s"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (55 commits)
  ARM: ux500: remove deleted file from Makefile
  ARM: ep93xx: Disable TS-72xx watchdog before uncompressing
  ARM: ux500: cut some platform data
  MAINTAINERS: Update for the current location of the bcm2835 tree.
  ARM: davinci: remove BUG_ON() from da850_register_sata()
  ARM: davinci: da850: model the SATA refclk
  ARM: davinci: da850: add con_id for the SATA clock
  ARM: davinci: da8xx-dt: add OF_DEV_AUXDATA entry for SATA
  arm: mvebu: support for SMP on 98DX3336 SoC
  dt-bindings: video: exynos7-decon: Remove obsolete samsung,power-domain property
  soc: dove: constify reset_control_ops structures
  ARM: mv78xx0: fix possible PCI buffer overflow
  MAINTAINERS: transfer maintainership for the EZX platform
  ARM: shmobile: rcar-gen2: Add more register documentation
  ARM: tegra: paz00: Fix __initdata placement
  ARM: OMAP: clock: Remove unused mpurate cmdline option
  ARM: davinci: add skeleton for pdata-quirks
  arm: sunxi: add support for V3s SoC
  ARM: OMAP2+: omap_hwmod: Add support for earlycon
  arm: hisi: drop extern hip01_cpu_die
  ...
2017-02-23 15:33:54 -08:00
Linus Torvalds af8999f672 ARM: SoC non-urgent fixes for merge window
We sometimes collect non-critical fixes that come in during the later part
 of the merge window in a branch for the next release instead, and this is
 that contents for v4.11.
 
 Most of these are OMAP fixes, dealing with OMAP36/37 detection, quirks
 and setup. There's also some fixes for Davinci and a Kconfig fix for SCPI
 to only enable on ARM{,64}.
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Merge tag 'armsoc-fixes-nc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC non-urgent fixes from Arnd Bergmann:
 "We sometimes collect non-critical fixes that come in during the later
  part of the merge window in a branch for the next release instead, and
  this is that contents for v4.11.

  Most of these are OMAP fixes, dealing with OMAP36/37 detection, quirks
  and setup. There's also some fixes for Davinci and a Kconfig fix for
  SCPI to only enable on ARM{,64}"

* tag 'armsoc-fixes-nc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  firmware: arm_scpi: Add hardware dependencies
  ARM: OMAP3: Fix SoC detection of OMAP36/37 Family
  ARM: OMAP5: Add HWMOD_SWSUP_SIDLE_ACT flag for UART
  ARM: dts: Fix compatible for ti81xx uarts for 8250
  ARM: dts: Fix am335x and dm814x scm syscon to probe children
  ARM: OMAP2+: Fix init for multiple quirks for the same SoC
  ARM: dts: Fix omap3 off mode pull defines
  bus: da850-mstpri: fix my e-mail address
  ARM: davinci: da850: fix da850_set_pll0rate()
  ARM: davinci: da850: coding style fix
2017-02-23 15:28:04 -08:00
Linus Torvalds ff58d005cd media updates for v4.11-rc1
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Merge tag 'media/v4.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - new drivers:
       - i.MX6 Video Data Order Adapter's (VDOA)
       - Toshiba et8ek8 5MP sensor
       - STM DELTA multi-format video decoder V4L2 driver
       - SPI connected IR LED
       - Mediatek IR remote receiver
       - ZyDAS ZD1301 DVB USB interface driver

 - new RC keymaps

 - some very old LIRC drivers got removed from staging

 - RC core gained support encoding IR scan codes

 - DVB si2168 gained support for DVBv5 statistics

 - lirc_sir driver ported to rc-core and promoted from staging

 - other bug fixes, board additions and driver improvements

* tag 'media/v4.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (230 commits)
  [media] mtk-vcodec: fix build warnings without DEBUG
  [media] zd1301: fix building interface driver without demodulator
  [media] usbtv: add sharpness control
  [media] cxusb: Use a dma capable buffer also for reading
  [media] ttpci: address stringop overflow warning
  [media] dvb-usb-v2: avoid use-after-free
  [media] add Hama Hybrid DVB-T Stick support
  [media] et8ek8: Fix compiler / Coccinelle warnings
  [media] media: fix semicolon.cocci warnings
  [media] media: exynos4-is: add flags to dummy Exynos IS i2c adapter
  [media] v4l: of: check for unique lanes in data-lanes and clock-lanes
  [media] coda/imx-vdoa: constify structs
  [media] st-delta: debug: trace stream/frame information & summary
  [media] st-delta: add mjpeg support
  [media] st-delta: EOS (End Of Stream) support
  [media] st-delta: rpmsg ipc support
  [media] st-delta: add memory allocator helper functions
  [media] st-delta: STiH4xx multi-format video decoder v4l2 driver
  [media] MAINTAINERS: add st-delta driver
  [media] ARM: multi_v7_defconfig: enable STMicroelectronics DELTA Support
  ...
2017-02-21 16:58:32 -08:00
Matthijs van Duin 448c077eeb ARM: OMAP5 / DRA7: Fix HYP mode boot for thumb2 build
'adr' yields a data-pointer, not a function-pointer.

Fixes: 999f934de1 ("ARM: omap5/dra7xx: Enable booting secondary
CPU in HYP mode")
Signed-off-by: Matthijs van Duin <matthijsvanduin@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-02-16 13:12:15 -08:00
Tony Lindgren 179125085b ARM: OMAP3: Fix smartreflex platform data regression
Commit d9d9cec028 ("ARM: OMAP2+: Remove legacy data from hwmod for
omap3") dropped platform data that should no longer be used as we're
booting with device tree. It turns out that smartreflex is still
using platform data and produces the following errors during probe:

smartreflex smartreflex.0: invalid resource
smartreflex smartreflex.0: omap_sr_probe: ioremap fail
smartreflex: probe of smartreflex.0 failed with error -22
smartreflex smartreflex.1: invalid resource
smartreflex smartreflex.1: omap_sr_probe: ioremap fail
smartreflex: probe of smartreflex.1 failed with error -22

Let's fix the regression by adding back the smartreflex hwmod data.
The long term is to update the smartreflex driver to use device tree
based probing.

Fixes: d9d9cec028 ("ARM: OMAP2+: Remove legacy data from hwmod
for omap3")
Reported-by: Adam Ford <aford173@gmail.com>
Tested-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-02-14 10:26:03 -08:00
Sean Young 922ee72da7 [media] rx51: broken build
As reported by kernel build test:

   In file included from arch/arm/mach-omap2/pdata-quirks.c:15:0:
>> arch/arm/mach-omap2/pdata-quirks.c:536:49: error: 'rx51_lirc_data' undeclared here (not in a function)
     OF_DEV_AUXDATA("nokia,n900-ir", 0, "n900-ir", &rx51_lirc_data),
                                                    ^
   include/linux/of_platform.h:52:21: note: in definition of macro 'OF_DEV_AUXDATA'
       .platform_data = _pdata }
                        ^~~~~~

Since "a92def1 [media] ir-rx51: port to rc-core" the build fails on
some arm configurations.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-31 07:23:59 -02:00
Sean Young a92def1bec [media] ir-rx51: port to rc-core
This driver was written using lirc since rc-core did not support
transmitter-only hardware at that time. Now that it does, port
this driver.

Compile tested only.

Signed-off-by: Sean Young <sean@mess.org>
Cc: Timo Kokkonen <timo.t.kokkonen@iki.fi>
Cc: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-30 14:25:04 -02:00
Viresh Kumar 8a31d9d942 PM / OPP: Update OPP users to put reference
This patch updates dev_pm_opp_find_freq_*() routines to get a reference
to the OPPs returned by them.

Also updates the users of dev_pm_opp_find_freq_*() routines to call
dev_pm_opp_put() after they are done using the OPPs.

As it is guaranteed the that OPPs wouldn't get freed while being used,
the RCU read side locking present with the users isn't required anymore.
Drop it as well.

This patch also updates all users of devfreq_recommended_opp() which was
returning an OPP received from the OPP core.

Note that some of the OPP core routines have gained
rcu_read_{lock|unlock}() calls, as those still use RCU specific APIs
within them.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> [Devfreq]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-01-30 09:22:21 +01:00
Olof Johansson f0d0b8cb6b SoC changes for omaps for v4.11 merge window. This adds support
for keeping the interconnect target module active for uart if
 earlycon is specified. And we're adding Aaro Koskinen as a
 co-maintainer for omap1 to make sure things stay working for
 omap1. The other changes are mostly clean-up of old legacy code:
 
 - Remove unused omap_display_init()
 
 - Make omapdss_find_dss_of_node() function static
 
 - Add support for earlycon
 
 - Tidy up omap1 usb logging output with pr_cont
 
 - Make omap_otg_init() static
 
 - Delete redundant CPU class checks for omap1
 
 - Remove unused mpurate cmdline option that has not done
   anything for past 1.5 years at least
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Merge tag 'omap-for-v4.11/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc

SoC changes for omaps for v4.11 merge window. This adds support
for keeping the interconnect target module active for uart if
earlycon is specified. And we're adding Aaro Koskinen as a
co-maintainer for omap1 to make sure things stay working for
omap1. The other changes are mostly clean-up of old legacy code:

- Remove unused omap_display_init()
- Make omapdss_find_dss_of_node() function static
- Add support for earlycon
- Tidy up omap1 usb logging output with pr_cont
- Make omap_otg_init() static
- Delete redundant CPU class checks for omap1
- Remove unused mpurate cmdline option that has not done
  anything for past 1.5 years at least

* tag 'omap-for-v4.11/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP: clock: Remove unused mpurate cmdline option
  ARM: OMAP2+: omap_hwmod: Add support for earlycon
  MAINTAINERS: Add Aaro Koskinen as TI omap1 SoC co-maintainer
  ARM: OMAP1: USB: delete redundant CPU class checks
  ARM: OMAP1: USB: make omap_otg_init() static
  ARM: OMAP1: USB: tidy up logging output
  ARM: OMAP2+: Make the omapdss_find_dss_of_node() function static
  ARM: OMAP2+: Remove unused omap_display_init() function

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-01-29 17:15:36 -08:00
Andrew Murray 8c4bc91063 ARM: OMAP: clock: Remove unused mpurate cmdline option
The 'mpurate' option, historically used for specifying an initial
MPU rate at boot, no longer has any effect due to the supporting
code being removed as it was 'wrong and dangerous' [1].

This patch removes the remaining dead code associated with the
__setup macros to avoid confusion and reduce bloat.

[1] https://patchwork.kernel.org/patch/5954631/

Signed-off-by: Andrew Murray <amurray@embedded-bits.co.uk>
Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-01-24 07:20:02 -08:00
Lokesh Vutla 8dd6666f49 ARM: OMAP2+: omap_hwmod: Add support for earlycon
Hwmod core tries to reset and idles each IP that is registered with hwmod.
In case of earlycon, that specific uart IP cannot be reset or keep it in
idle state else earlycon hangs once hwmod resets that uart IP. So add support
to not reset uart that is being used as earlycon only if CONFIG_SERIAL_EARLYCON
is enabled.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-01-20 10:39:10 -08:00
Adam Ford 631af44c10 ARM: OMAP3: Fix SoC detection of OMAP36/37 Family
The OMAP36/37 families are similar, but there are a few features sections
that can help identify some of them.  Let's add checks for 3630/3730,
OMAP3621, DM3725, OMAP3615/DM3715, OMAP3611, and AM3703 all based on
features similar to what was done for the OMAP34xx/35xx series

The checkpatch flags some warnings for braces, but I kept the coding style
to match the adjacent code for consistency.

I don't have an OMAP36xx to test, but this was tested on both a DM3730 and
AM3703.

Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-01-20 10:13:06 -08:00
Vignesh R bd5e444bf1 ARM: OMAP5: Add HWMOD_SWSUP_SIDLE_ACT flag for UART
According to the commit ca43ea345d ("ARM: OMAP2+: hwmod: Add a new
flag to handle SIDLE in SWSUP only in active"), UART IP needs the sidle
mode to be controlled in SW only while they are active. Once inactive,
the IP needs to be put back in HW control so they are also wakeup
capable. The flag HWMOD_SWSUP_SIDLE takes care of this. So add this flag
to all instances of UART.

With this change, 8250 UART now gives out proper RX Timeout interrupts
and is usable as console.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-01-20 10:08:57 -08:00
Tony Lindgren 6e613ebf44 ARM: OMAP2+: Fix init for multiple quirks for the same SoC
It's possible that there are multiple quirks that need to be initialized
for the same SoC. Fix the issue by not returning on the first match.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-01-06 08:54:24 -08:00
Adam Ford a3ac350793 ARM: OMAP2+: Fix WL1283 Bluetooth Baud Rate
Commit 485fa1261f ("ARM: OMAP2+: LogicPD Torpedo + Wireless: Add Bluetooth")
set the wrong baud rate for the UART. The Baud rate was 300,000 and it should
be 3,000,000 for WL1283.

Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-01-05 09:29:09 -08:00
Laurent Pinchart 7afa44e0e8 ARM: OMAP2+: Make the omapdss_find_dss_of_node() function static
The omapdss_find_dss_of_node() function isn't used outside of its
compilation unit, make it static.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-01-05 08:58:37 -08:00
Laurent Pinchart 8635cb2c2b ARM: OMAP2+: Remove unused omap_display_init() function
The omap_display_init() function is unused, remove it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-01-05 08:58:20 -08:00
Tony Lindgren 74de7126fc Merge branch 'omap-for-v4.10/legacy' into omap-for-v4.10/fixes 2016-12-27 10:29:24 -08:00
Markus Elfring 9a6b6f75d9 ARM: OMAP2+: PRM: Delete an error message for a failed memory allocation
Omit an extra message for a memory allocation failure in this function.

Link: http://events.linuxfoundation.org/sites/events/files/slides/LCJ16-Refactor_Strings-WSang_0.pdf
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-12-27 10:06:00 -08:00
Maninder Singh 5066d5296f ARM: omap2+: fixing wrong strcat for Non-NULL terminated string
Issue caught with static analysis tool:
"Dangerous usage of 'name' (strncpy doesn't always 0-terminate it)"

Use strlcpy _includes_ the NUL terminator, and  strlcat() which ensures
that it won't overflow the buffer.

Reported-by: Maninder Singh <maninder1.s@samsung.com>
Signed-off-by: Vaneet Narang <v.narang@samsung.com>
CC: Russell King <linux@armlinux.org.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-12-27 10:05:47 -08:00
Grygorii Strashko f86a2c875f ARM: omap2+: am437x: rollback to use omap3_gptimer_timer_init()
The commit 55ee7017ee ("arm: omap2: board-generic: use
omap4_local_timer_init for AM437x") unintentionally changes the
clocksource devices for AM437x from OMAP GP Timer to SyncTimer32K.

Unfortunately, the SyncTimer32K is starving from frequency deviation
as mentioned in commit 5b5c013591 ("ARM: OMAP2+: AM43x: Use gptimer
as clocksource") and, as reported by Franklin [1], even its monotonic
nature is under question (most probably there is a HW issue, but it's
still under investigation).

Taking into account above facts It's reasonable to rollback to the use
of omap3_gptimer_timer_init().

[1] http://www.spinics.net/lists/linux-omap/msg127425.html

Fixes: 55ee7017ee ("arm: omap2: board-generic: use
omap4_local_timer_init for AM437x")
Reported-by: Cooper Jr., Franklin <fcooper@ti.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-12-27 09:38:04 -08:00
Thomas Gleixner a5a1d1c291 clocksource: Use a plain u64 instead of cycle_t
There is no point in having an extra type for extra confusion. u64 is
unambiguous.

Conversion was done with the following coccinelle script:

@rem@
@@
-typedef u64 cycle_t;

@fix@
typedef cycle_t;
@@
-cycle_t
+u64

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: John Stultz <john.stultz@linaro.org>
2016-12-25 11:04:12 +01:00
Linus Torvalds e79ab194d1 ARM: SoC platform updates for v4.10
These are updates for platform specific code on 32-bit ARM machines,
 essentially anything that can not (yet) be expressed using DT files.
 
 Noteworthy changes include:
 
 - Added support for the TI DRA71x family of SoCs in mach-omap2,
   this is an new variant of the the DRA72x/DRA74x automotive
   infotainment chips we already supported for a while.
 
 - Added support for the ST STM32F746 SoC, the first Cortex-M7
   based microcontroller we support, related to the smaller
   STM32F4 family.
 
 - Renesas adds support for r8a7743 and r8a7745 in mach-shmobile,
   see http://elinux.org/RZ-G
 
 - SMP is now supported on the OX820 platform
 
 - A lot of code in mach-omap2 gets removed as a follow-up to
   removing support for board files in the previous release
 
 - Davinci has some new work to improve USB support
 
 - For i.MX, the performance monitor now supports profiling the
   memory controller using 'perf'
 
 Conflicts:
 arch/arm/mach-shmobile/setup-rcar-gen2.c: rcar_gen2_clocks_init()
 is gone, calling of_clk_init(NULL) is sufficient now.
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates from Arnd Bergmann:
 "These are updates for platform specific code on 32-bit ARM machines,
  essentially anything that can not (yet) be expressed using DT files.

  Noteworthy changes include:

   - Added support for the TI DRA71x family of SoCs in mach-omap2, this
     is an new variant of the the DRA72x/DRA74x automotive infotainment
     chips we already supported for a while.

   - Added support for the ST STM32F746 SoC, the first Cortex-M7 based
     microcontroller we support, related to the smaller STM32F4 family.

   - Renesas adds support for r8a7743 and r8a7745 in mach-shmobile, see
     http://elinux.org/RZ-G

   - SMP is now supported on the OX820 platform

   - A lot of code in mach-omap2 gets removed as a follow-up to removing
     support for board files in the previous release

   - Davinci has some new work to improve USB support

   - For i.MX, the performance monitor now supports profiling the memory
     controller using 'perf'"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (95 commits)
  ARM: davinci: da830-evm: use gpio descriptor for mmc pins
  ARM: davinci: da850-evm: use gpio descriptor for mmc pins
  ARM: davinci: hawk: use gpio descriptor for mmc pins
  ARM: ARTPEC-6: add select MFD_SYSCON to MACH_ARTPEC6
  ARM: davinci: da8xx: Fix ohci device name
  ARM: oxnas: Add OX820 config and makefile entry
  ARM: oxnas: Add OX820 SMP support
  ARM: davinci: PM: fix build when da850 not compiled in
  ARM: orion5x: remove legacy support of ls-chl
  ARM: integrator: drop EBI access use syscon
  ARM: BCM5301X: Add back handler ignoring external imprecise aborts
  ARM: davinci: PM: support da8xx DT platforms
  ARM: davinci: PM: cleanup: remove references to pdata
  ARM: davinci: PM: rework init, remove platform device
  ARM: Kconfig: Introduce MACH_STM32F746 flag
  ARM: mach-stm32: Add a new SOC - STM32F746
  ARM: shmobile: document SK-RZG1E board
  ARM: shmobile: r8a7745: basic SoC support
  ARM: imx: mach-imx6ul: add imx6ull support
  ARM: zynq: Reserve correct amount of non-DMA RAM
  ...
2016-12-15 15:39:02 -08:00
Linus Torvalds 3ec5e8d82b ARM: SoC non-urgent fixes for v4.10
As usual, we queue up a few fixes that don't seem urgent enough to go in
 through -rc, or that just came a little too late given their size.
 
 The zx fixes make the platform finally boot on real hardware, the
 davinci and imx31 get the DT support working better for some of
 the machines that are still normally used with classic board files.
 One tegra fix is important for new bootloader versions, but the
 bug has been around for a while without anyone noticing.
 
 The other changes are mostly cosmetic.
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Merge tag 'armsoc-fixes-nc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC non-urgent fixes from Arnd Bergmann:
 "As usual, we queue up a few fixes that don't seem urgent enough to go
  in through -rc, or that just came a little too late given their size.

  The zx fixes make the platform finally boot on real hardware, the
  davinci and imx31 get the DT support working better for some of the
  machines that are still normally used with classic board files. One
  tegra fix is important for new bootloader versions, but the bug has
  been around for a while without anyone noticing.

  The other changes are mostly cosmetic"

* tag 'armsoc-fixes-nc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (22 commits)
  arm64: tegra: Add missing Smaug revision
  arm64: tegra: Add VDD_GPU regulator to Jetson TX1
  arm64: dts: zte: clean up gic-v3 redistributor properties
  arm64: dts: zx: Fix gic GICR property
  bus: vexpress-config: fix device reference leak
  soc: ti: qmss: fix the case when !SMP
  ARM: lpc32xx: drop duplicate header device.h
  ARM: ixp4xx: drop duplicate header gpio.h
  ARM: socfpga: fix spelling mistake in error message
  ARM: dts: imx6q-cm-fx6: fix fec pinctrl
  ARM: dts: imx7d-pinfunc: fix UART pinmux defines
  ARM: dts: imx6qp: correct LDB clock inputs
  ARM: OMAP2+: pm-debug: Use seq_putc() in two functions
  ARM: OMAP2+: Remove the omapdss_early_init_of() function
  mfd: tps65217: Fix mismatched interrupt number
  ARM: zx: Fix error handling
  ARM: spear: Fix error handling
  ARM: davinci: da850: Fix pwm name matching
  ARM: clk: imx31: properly init clocks for machines with DT
  clk: imx31: fix rewritten input argument of mx31_clocks_init()
  ...
2016-12-15 15:15:13 -08:00
Grygorii Strashko 14944934f8 ARM: OMAP2+: Remove legacy gpio code
OMAP2+ GPOs are initialized now using device tree, so legacy gpio
initialization code can be removed.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-23 08:22:10 -08:00
Olof Johansson 6d1e66bb4e Legacy platform_data removal for omaps for v4.10 merge window.
We've dropped the last legacy boot board-*.c files for mach-omap2
 for v4.9 so now we can start removing the unused platform_data.
 
 All of the below has been unused since v4.9 merge window:
 
 - Drop legacy pmic init code
 
 - Apply seq_puts() fixes for legacy mux code, then drop it
 
 - Drop legacy serial init
 
 - Drop legacy i2c init
 
 - Drop legacy PM init
 
 - Drop legacy twl4030 platform init
 
 - Drop legacy USB host init
 
 - Drop legacy muxing for tusb6010, n8x0 is still using it's
   platform init via pdata-quirks.c
 
 - Drop legacy musb init
 
 - Drop hwmod related legacy mux code
 
 - Drop legacy hwmod data for omap3
 
 - Drop legacy smsc911x and smc91x init
 
 - Drop legacy board flash init
 
 - Drop legacy ads7846 init
 
 - Drop legacy sdram timings
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Merge tag 'omap-for-v4.10/legacy-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc

Legacy platform_data removal for omaps for v4.10 merge window.
We've dropped the last legacy boot board-*.c files for mach-omap2
for v4.9 so now we can start removing the unused platform_data.

All of the below has been unused since v4.9 merge window:

- Drop legacy pmic init code
- Apply seq_puts() fixes for legacy mux code, then drop it
- Drop legacy serial init
- Drop legacy i2c init
- Drop legacy PM init
- Drop legacy twl4030 platform init
- Drop legacy USB host init
- Drop legacy muxing for tusb6010, n8x0 is still using it's
  platform init via pdata-quirks.c
- Drop legacy musb init
- Drop hwmod related legacy mux code
- Drop legacy hwmod data for omap3
- Drop legacy smsc911x and smc91x init
- Drop legacy board flash init
- Drop legacy ads7846 init
- Drop legacy sdram timings

* tag 'omap-for-v4.10/legacy-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (21 commits)
  ARM: OMAP2+: Drop legacy sdram timings
  ARM: OMAP2+: Drop legacy ads7846 init
  ARM: OMAP2+: Remove legacy board-flash.c
  ARM: OMAP2+: Remove legacy smsc911x and smc91x GPMC support
  ARM: OMAP2+: Remove legacy data from hwmod for omap3
  ARM: OMAP2+: Remove legacy mux code
  ARM: OMAP2+: Remove legacy hwmod mux code
  ARM: OMAP2+: Remove legacy usb-musb.c platform init code
  ARM: OMAP2+: Remove legacy muxing for usb-tusb6010.c
  ARM: OMAP2+: Remove legacy usb-host.c platform init code
  ARM: OMAP2+: Remove legacy twl4030 platform init code
  ARM: OMAP2+: Remove legacy PM init
  ARM: OMAP2+: Remove legacy i2c.c platform init code
  ARM: OMAP2+: Remove legacy serial.c
  ARM: OMAP2+: mux: Use seq_putc() in omap_mux_dbg_signal_show()
  ARM: OMAP2+: mux: Replace three seq_printf() calls by seq_puts()
  ARM: OMAP: kill omap_pmic_init
  ARM: OMAP2: kill omap2_pmic_init
  ARM: OMAP3: kill omap3_pmic_init
  ARM: OMAP3: kill omap3_pmic_get_config and twl_{get,set}_voltage
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-11-18 16:49:23 -08:00
Tony Lindgren 2bb6375f5c Merge branch 'omap-for-v4.10/cpuidle-v2' into omap-for-v4.10/soc 2016-11-14 15:58:18 -08:00
Tony Lindgren 19944b3a4a ARM: OMAP2+: Drop legacy sdram timings
These are no longer used. If somebody needs to configure
memory timings for various idle modes, they should be
implemented as a device driver callbacks from the PM
code.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-10 16:07:32 -07:00
Tony Lindgren dbf828ec4c ARM: OMAP2+: Drop legacy ads7846 init 2016-11-10 15:46:13 -07:00
Javier Martinez Canillas 6a6e640bc1 ARM: OMAP2+: Remove legacy board-flash.c
Legacy board files in mach-omap2 used the helper functions
board_{nor,nand,onenand}_init() to initialize the flash
devices attached to the GPMC.

With Device Tree booting the initialization is handled by
the GPMC driver gpmc_probe_*_child() functions so this
code is not needed anymore now that OMAP2+ is DT-only.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-10 15:32:33 -07:00
Javier Martinez Canillas b7b23ffcf7 ARM: OMAP2+: Remove legacy smsc911x and smc91x GPMC support
When connecting an ethernet chip to the GPMC, such as smc91x
or smsc911x, a GPIO has to be requested to be used as an IRQ
and also the IO memory for a GPMC chip-select.

When booting with DT the chip-select allocation is handled
in a generic manner in the GPMC driver and the GPIO to IRQ
mapping is made by the DT core so this code is not needed
anymore now that mach-omap2 related boards are DT-only.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-10 15:31:31 -07:00
Tony Lindgren d9d9cec028 ARM: OMAP2+: Remove legacy data from hwmod for omap3
This data is now coming from device tree so we can remove the
duplicate data. Let's keep the DSS and DMA related things for now
until those have been converted to device tree completely.

While at it, let's also add the trailing commas to data structures
so further processing with scripts will be a bit easier.

Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-10 14:03:19 -07:00
Tony Lindgren e9f5f1e456 ARM: OMAP2+: Remove legacy mux code
All the boards booting with device tree use
drivers/pinctrl-single.c instead.

Note that mach-omap1 is still using the legacy mux,
so let's move the related Kconfig options from plat-omap
to mach-omap1.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-10 12:42:49 -07:00
Tony Lindgren b42814557f ARM: OMAP2+: Remove legacy hwmod mux code
This is no longer needed when booted with device tree.

Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-10 12:42:38 -07:00
Tony Lindgren 4e37d32fef ARM: OMAP2+: Remove legacy usb-musb.c platform init code
This is no longer needed when booted with device tree.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-10 12:42:28 -07:00
Tony Lindgren 602105ed74 ARM: OMAP2+: Remove legacy muxing for usb-tusb6010.c
We are moving to device tree based booting, and this should be
done using pinctrl-single instead.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-10 12:42:15 -07:00
Tony Lindgren 9080b8dc76 ARM: OMAP2+: Remove legacy usb-host.c platform init code
This is no longer needed when booted with device tree.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-10 12:41:32 -07:00
Tony Lindgren 0d07c1cba3 ARM: OMAP2+: Remove legacy twl4030 platform init code
This code is no longer used and can be removed as we
are using device tree.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-10 09:18:45 -07:00
Tony Lindgren cb6675d6a8 ARM: OMAP2+: Remove legacy PM init
This is no longer needed when booted with device tree.
And let's replace cpu_is with soc_is for the PM code to
avoid confusion, they do the same thing.

Note that omap_pmic_late_init() now just calls
omap3_twl_init() and omap4_twl_init() to initialize the
voltage layer so we can remove the remaining references
to twl-common code and remove it in the following patch.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-10 09:01:33 -07:00
Tony Lindgren 65fa3e719f ARM: OMAP2+: Remove legacy i2c.c platform init code
We can now initialize I2C for mach-omap2 using device tree. And we
can move the remaining code in plat-omap/i2c.c into mach-omap1/i2c.c.

Note that we cannot remove some of the I2C bus reset functions
as they are being used by hwmod code.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-10 08:53:30 -07:00
Tony Lindgren f3b78f7289 ARM: OMAP2+: Remove legacy serial.c
We can now initialize the UARTs using device tree.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-10 08:53:18 -07:00
Nishanth Menon 6cd9699c6b ARM: DRA7: hwmod: Do not register RTC on DRA71
RTC is not available on DRA71x, so accessing any of the RTC
register or clkctrl register will lead to a crash. So, do not
register RTC hwmod for DRA71x.

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-09 15:59:18 -07:00
Lokesh Vutla a2af765adb ARM: OMAP2+: board-generic: add support for DRA71x family
DRA71x processor family is a derivative of DRA722 ES2.0 targetted for
infotainment systems.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-09 15:59:02 -07:00
Lokesh Vutla d88d30e7b5 ARM: AMx3xx: hwmod: Add data for RNG
Hardware random number generator is present in both AM33xx and AM43xx
SoC's. So moving the hwmod data to common data.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-09 15:39:41 -07:00
Lokesh Vutla d7e4c12856 ARM: AM43xx: hwmod: Add data for DES
AM43xx SoC contains DES crypto hardware accelerator. Add hwmod data for
this IP so that it can be utilized by crypto frameworks.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-09 15:35:56 -07:00
Joel Fernandes c2ce5fb3f3 ARM: OMAP: DRA7xx: Make L4SEC clock domain SWSUP only
Using HWSUP for l4sec clock domain is causing warnings in HWMOD code for
DRA7. Based on some observations, once the clock domain goes into an IDLE
state (because of no activity etc), the IDLEST for the module goes to '0x2'
value which means Interface IDLE condition. So far so go, however once the
MODULEMODE is set to disabled for the particular IP, the IDLEST for the
module should go to '0x3', per the HW AUTO IDLE protocol. However this is
not observed and there is no reason per the protocl for the transition to
not happen. This could potentially be a bug in the HW AUTO state-machine.

Work around for this is to use SWSUP only for the particular clockdomain.
With this all the transitions of IDLEST happen correctly and warnings
don't occur.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-09 15:35:46 -07:00
Joel Fernandes 7a825cc885 ARM: DRA7: hwmod: Add data for RNG IP
DRA7 SoC contains hardware random number generator. Add hwmod data for
this IP so that it can be utilized.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
[t-kristo@ti.com: squashed the RNG hwmod IP flag fixes from Lokesh,
                  squashed the HS chip fix from Daniel Allred]
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-09 15:35:27 -07:00
Lokesh Vutla 7e45f17998 ARM: DRA7: hwmod: Add data for SHA IP
DRA7 SoC contains SHA crypto hardware accelerator. Add hwmod data for
this IP so that it can be utilized by crypto frameworks.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-09 15:35:22 -07:00
Joel Fernandes 628d758731 ARM: DRA7: hwmod: Add data for AES IP
DRA7 SoC contains AES crypto hardware accelerator. Add hwmod data for
this IP so that it can be utilized by crypto frameworks.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
[t-kristo@ti.com: squash in support for both AES1 and AES2 cores]
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-09 15:35:17 -07:00
Joel Fernandes c311864310 ARM: DRA7: hwmod: Add data for DES IP
DRA7 SoC contains DES crypto hardware accelerator. Add hwmod data for
this IP so that it can be utilized by crypto frameworks.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-09 15:35:09 -07:00
Markus Elfring 195c7a52b7 ARM: OMAP2+: mux: Use seq_putc() in omap_mux_dbg_signal_show()
A single character (line break) should be put into a sequence.
Thus use the corresponding function "seq_putc".

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-09 15:34:09 -07:00
Markus Elfring 5c02b01d23 ARM: OMAP2+: pm-debug: Use seq_putc() in two functions
A single character (line break) should be put into a sequence at the end.
Thus use the corresponding function "seq_putc".

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-09 15:33:33 -07:00
Markus Elfring bbf193fc3c ARM: OMAP2+: mux: Replace three seq_printf() calls by seq_puts()
Strings which did not contain data format specification should be put into
a sequence. Thus use the corresponding function "seq_puts".

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-09 15:32:37 -07:00
Nicolae Rosia 76eddd6046 ARM: OMAP: kill omap_pmic_init
Last user of this function was removed in commit
9b714 ("ARM: OMAP2+: Drop legacy board file for n900") during
legacy board file removal.

Signed-off-by: Nicolae Rosia <Nicolae_Rosia@mentor.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-09 14:46:10 -07:00
Nicolae Rosia 30bfa0deb3 ARM: OMAP2: kill omap2_pmic_init
Last call of function was removed with commit
bfd46a ("ARM: OMAP: Fix i2c init for twl4030")

Signed-off-by: Nicolae Rosia <Nicolae_Rosia@mentor.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-09 14:46:06 -07:00
Nicolae Rosia 873fe3f9ef ARM: OMAP3: kill omap3_pmic_init
Last user of this function was removed in commit
e92fc4 ("ARM: OMAP2+: Drop legacy board file for LDP") during
legacy board file removal.

Signed-off-by: Nicolae Rosia <Nicolae_Rosia@mentor.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-09 14:46:00 -07:00
Nicolae Rosia 482fde8c2d ARM: OMAP3: kill omap3_pmic_get_config and twl_{get,set}_voltage
Last user of these functions was removed in commit
e92fc4 ("ARM: OMAP2+: Drop legacy board file for LDP") during
legacy board file removal.

Signed-off-by: Nicolae Rosia <Nicolae_Rosia@mentor.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-09 14:45:54 -07:00
Nicolae Rosia c01cda4c35 ARM: OMAP4: kill omap4_pmic_init and omap4_pmic_get_config
Last user of these functions was deleted in commit
b42b91 ("ARM: OMAP2+: Remove board-omap4panda.c") during DT transition.

Signed-off-by: Nicolae Rosia <Nicolae_Rosia@mentor.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-09 14:45:49 -07:00
Laurent Pinchart 71b2e2e3b3 ARM: OMAP2+: Remove the omapdss_early_init_of() function
The function is empty, remove it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-09 14:38:47 -07:00
Santosh Shilimkar 7abdb0e23e ARM: OMAP5: Add basic cpuidle MPU CSWR support
Add OMAP5 CPUIDLE support.

This patch adds MPUSS low power states in cpuidle.

        C1 - CPU0 WFI + CPU1 WFI + MPU ON
        C2 - CPU0 RET + CPU1 RET + MPU CSWR

Modified from TI kernel tree commit 605967fd2205 ("ARM: DRA7: PM:
cpuidle MPU CSWR support") except enable cpuidle for omap5 instead
of dra7.

According to Nishanth Menon <nm@ti.com>, cpuidle on dra7 is not
supported properly in the hardware so we don't want to enable it.
However, for omap5 this adds some nice power savings. Note that
the TI 3.8 based tree has other cpuidle states that we may be able
to enable later on.

On omap5-uevm, the power consumption eventually settles down to about
920mW with ehci-omap and ohci-omap3 unloaded compared to about 1.7W
without these patches. Note that it seems to take few minutes after
booting for the idle power to go down to 920mW from 1.3W, no idea so
far what might be causing that.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
[ j-keerthy@ti.com rework on 3.14]
Signed-off-by: Keerthy <j-keerthy@ti.com>
[nm@ti.com: updates based on profiling]
[tony@atomide.com: dropped CPUIDLE_FLAG_TIME_VALID no longer used,
changed for omap5 only as requested by Nishanth, updated comments]
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-07 16:52:14 -07:00
Tony Lindgren cbf2642872 ARM: OMAP4+: Fix bad fallthrough for cpuidle
We don't want to fall through to a bunch of errors for retention
if PM_OMAP4_CPU_OSWR_DISABLE is not configured for a SoC.

Fixes: 6099dd37c6 ("ARM: OMAP5 / DRA7: Enable CPU RET on suspend")
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-07 16:52:05 -07:00
Tony Lindgren 8a8be46afe ARM: OMAP5: Fix mpuss_early_init
We need to properly initialize mpuss also on omap5 like we do on omap4.
Otherwise we run into similar kexec problems like we had on omap4 when
trying to kexec from a kernel with PM initialized.

Fixes: 0573b957fc ("ARM: OMAP4+: Prevent CPU1 related hang with kexec")
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-07 16:51:58 -07:00
Tony Lindgren da6d5993bf ARM: OMAP5: Fix build for PM code
It's CONFIG_SOC_OMAP5, not CONFIG_ARCH_OMAP5. Looks like make randconfig
builds have not hit this one yet.

Fixes: b3bf289c1c ("ARM: OMAP2+: Fix build with CONFIG_SMP and CONFIG_PM
is not set")
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-07 16:50:10 -07:00
Nicolae Rosia 0ab11d8ea4 ARM: OMAP2+: avoid NULL pointer dereference
For OMAP4, volt_data is set in omap44xx_voltagedomains_init.
If the SoC is neither OMAP443X or OMAP446X, we end up with a
NULL in volt_data which causes a kernel oops.
This is the case when booting OMAP4470.

Signed-off-by: Nicolae Rosia <Nicolae_Rosia@mentor.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-07 16:24:53 -07:00
Colin Ian King 4ae46efcff ARM: OMAP2+: PRM: initialize en_uart4_mask and grpsel_uart4_mask
In the case where has_uart4 is false, en_uart4_mask and grpsel_uart4_mask
are not initialized and so any garbage value is being logically or'd into
the write of PM_WKEN and OMAP3430_PM_MPUGRPSEL.  Fix this by initializing
these masks to zero.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-07 16:21:53 -07:00
Dave Gerlach 72bb40b8b7 ARM: AM43XX: Select OMAP_INTERCONNECT in Kconfig
AM437x makes use of the omap_l3_noc driver so explicitly select
OMAP_INTERCONNECT in the Kconfig for SOC_AM43XX to ensure it gets enabled
for AM43XX only builds.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-07 16:20:04 -07:00
Tony Lindgren 85566ca6b6 ARM: OMAP3: Fix formatting of features printed
With the printk cleanups merged into v4.9-rc1, we now get the omap
revision printed on multiple lines. Let's fix that and also remove the
extra empty space at the end of the features. And let's update things
to use scnprintf as suggested by Ivaylo Dimitrov
<ivo.g.dimitrov.75@gmail.com>.

Reported-by: Adam Ford <aford173@gmail.com>
Cc: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Reviewed-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-07 14:52:39 -07:00
Linus Torvalds a771151a83 ARM: SoC cleanups for v4.9
The cleanups for v4.9 are a little larger that usual, but thankfully
 that is almost exclusively due to removing a significant number of
 files that have become obsolete after the still ongoing conversion
 of old board files to devicetree.
 
 - for mach-omap2, which is still the largest platform in arch/arm/,
   the conversion to DT is finally complete after the Nokia N900 is
   now fully supported there, along with the omap3 LDP, and we can
   remove those two board files.
   If no regressions are found, another large cleanup for the platform
   will happen as a follow-up, removing dead code and restructuring
   the platform based on being DT-only.
 
 - In mach-imx, similar work is ongoing, but has not come that far.
   This time, we remove the obsolete board file for the i.MX1
   generation, which like i.MX25, i.MX5, i.MX6, and i.MX7 is now DT-only.
   The remaining board files are for i.MX2 and i.MX3 machines
   based on old ARM926 or ARM1136 cores that should work with DT
   in principle.
 
 - realview has just been converted from board files to DT, and a lot
   of code gets removed in the process. This is the last
   ARM/Keil/Versatile derived platform that was still using board
   files, the other ones being integrator, versatile and vexpress.
   We can probably merge the remaining code into a single directory
   in the near future.
 
 - clps711x had completed the conversion in v4.8, but we accidentally
   left the files in place that should have been deleted then.
 
 Conflicts: two files deleted here have been modified upstream,
 the changes can be discarded.
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Merge tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanups from Arnd Bergmann:
 "The cleanups for v4.9 are a little larger that usual, but thankfully
  that is almost exclusively due to removing a significant number of
  files that have become obsolete after the still ongoing conversion of
  old board files to devicetree.

   - for mach-omap2, which is still the largest platform in arch/arm/,
     the conversion to DT is finally complete after the Nokia N900 is
     now fully supported there, along with the omap3 LDP, and we can
     remove those two board files. If no regressions are found, another
     large cleanup for the platform will happen as a follow-up, removing
     dead code and restructuring the platform based on being DT-only.

   - In mach-imx, similar work is ongoing, but has not come that far.
     This time, we remove the obsolete board file for the i.MX1
     generation, which like i.MX25, i.MX5, i.MX6, and i.MX7 is now
     DT-only. The remaining board files are for i.MX2 and i.MX3 machines
     based on old ARM926 or ARM1136 cores that should work with DT in
     principle.

   - realview has just been converted from board files to DT, and a lot
     of code gets removed in the process. This is the last
     ARM/Keil/Versatile derived platform that was still using board
     files, the other ones being integrator, versatile and vexpress. We
     can probably merge the remaining code into a single directory in
     the near future.

   - clps711x had completed the conversion in v4.8, but we accidentally
     left the files in place that should have been deleted then"

* tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (21 commits)
  ARM: select PCI_DOMAINS config from ARCH_MULTIPLATFORM
  ARM: stop *MIGHT_HAVE_PCI* config from being selected redundantly
  ARM: imx: (trivial) fix typo and grammar
  ARM: clps711x: remove extraneous files
  ARM: imx: use IS_ENABLED() instead of checking for built-in or module
  ARM: OMAP2+: use IS_ENABLED() instead of checking for built-in or module
  ARM: OMAP1: use IS_ENABLED() instead of checking for built-in or module
  ARM: imx: remove platform-mxc_rnga
  ARM: realview: imply device tree boot
  ARM: realview: no need to select SMP_ON_UP explicitly
  ARM: realview: delete the RealView board files
  ARM: imx: no need to select SMP_ON_UP explicitly
  ARM: i.MX: Move SOC_IMX1 into 'Device tree only'
  ARM: i.MX: Remove i.MX1 non-DT support
  ARM: i.MX: Remove i.MX1 Synertronixx SCB9328 board support
  ARM: i.MX: Remove i.MX1 Armadeus APF9328 board support
  ARM: mxs: remove obsolete startup code for TX28
  ARM: i.MX31 iomux: remove duplicates with alternate name
  ARM: i.MX31 iomux: remove plain duplicates
  ARM: OMAP2+: Drop legacy board file for LDP
  ...
2016-10-07 21:16:16 -07:00
Linus Torvalds 6a497e9d58 This is the bulk of GPIO changes for the v4.9 series:
Subsystem improvements:
 
 - Do away with the last users of the obsolete Kconfig options
   ARCH_REQUIRE_GPIOLIB and ARCH_WANT_OPTIONAL_GPIOLIB (the latter
   always sounded like an item on a wishlist to Santa Claus to
   me). We can now select GPIOLIB and be done with it, for all
   archs. After some struggle it even work on UM. Not that it has
   GPIO, but if it wants to, it can select the library.
 
 - Continued efforts to make drivers properly either tristate or
   bool.
 
 - Introduce a warning for drivers assigning default triggers to
   their irqchip lines when probed from device tree, so we find and
   fix these ambigous drivers. It is agreed that in the OF config
   path, the device tree defines trigger characteristics.
 
 - The same warning, mutatis mutandis, for ACPI-probed GPIO
   irqchips.
 
 - We introduce the ability to mark certain IRQ lines as "unusable"
   as they can be taken by BIOS/firmware, unrouted in silicon and
   generally nasty if you use them, and such things. This is
   put to good use in the STMPE driver and also in the Cherryview
   pin control driver.
 
 - A new "mockup" virtual GPIO device that can be used for testing.
   The plan is to add unit tests under tools/* for exercising this
   device and verify that the kernel code paths are working as they
   should.
 
 - Make memory-mapped I/O-drivers depend on HAS_IOMEM. This was
   implicit all the time, but when people started building UM
   with allyesconfig or allmodconfig it exploded in their face.
 
 - Move some stray bits of device tree and ACPI HW description
   callbacks down into their respective implementation silo. These
   were causing issues when compiling on !HAS_IOMEM as well, so
   now eventually UM compiles the GPIOLIB library if it wants to.
 
 New drivers:
 
 - New driver for the Aspeed GPIO front-end companion to the
   pin controller merged through the pin control tree.
 
 - New driver for the LP873x PMIC GPIO portions.
 
 - New driver for Technologic Systems' I2C FPGA GPIO such as
   TS4900, TS-7970, TS-7990 and TS-4100.
 
 - New driver for the Broadcom BCM63xx series including BCM6338
   and BCM6345.
 
 - New driver for the Intel WhiskeyCove PMIC GPIO.
 
 - New driver for the Allwinner AXP209 PMIC GPIO portions.
 
 - New driver for Diamond Systems 48 line GPIO-MM, another of
   these port-mapped I/O expansion cards.
 
 - Support the STMicroelectronics STMPE1600 variant in the STMPE
   driver.
 
 Driver improvements:
 
 - The STMPE driver now supports rising/falling edge detection
   properly for IRQs.
 
 - The PCA954x will now fetch and enable its VCC regulator properly.
 
 - Major rework of the PCA953x driver with the goal of eventually
   switching it over to use regmap and thus modernize it even more.
 
 - Switch the IOP driver to use the generic MMIO GPIO library.
 
 - Move the ages old HTC EGPIO (extended GPIO) GPIO expander driver
   over to this subsystem from MFD, achieveing some separation of
   concerns.
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Merge tag 'gpio-v4.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO updates from Linus Walleij:
 "This is the bulk of GPIO changes for the v4.9 series:

  Subsystem improvements:

   - do away with the last users of the obsolete Kconfig options
     ARCH_REQUIRE_GPIOLIB and ARCH_WANT_OPTIONAL_GPIOLIB (the latter
     always sounded like an item on a wishlist to Santa Claus to me). We
     can now select GPIOLIB and be done with it, for all archs. After
     some struggle it even work on UM. Not that it has GPIO, but if it
     wants to, it can select the library.

   - continued efforts to make drivers properly either tristate or bool.

   - introduce a warning for drivers assigning default triggers to their
     irqchip lines when probed from device tree, so we find and fix
     these ambigous drivers. It is agreed that in the OF config path,
     the device tree defines trigger characteristics.

   - the same warning, mutatis mutandis, for ACPI-probed GPIO irqchips.

   - we introduce the ability to mark certain IRQ lines as "unusable" as
     they can be taken by BIOS/firmware, unrouted in silicon and
     generally nasty if you use them, and such things. This is put to
     good use in the STMPE driver and also in the Cherryview pin control
     driver.

   - a new "mockup" virtual GPIO device that can be used for testing.
     The plan is to add unit tests under tools/* for exercising this
     device and verify that the kernel code paths are working as they
     should.

   - make memory-mapped I/O-drivers depend on HAS_IOMEM. This was
     implicit all the time, but when people started building UM with
     allyesconfig or allmodconfig it exploded in their face.

   - move some stray bits of device tree and ACPI HW description
     callbacks down into their respective implementation silo. These
     were causing issues when compiling on !HAS_IOMEM as well, so now
     eventually UM compiles the GPIOLIB library if it wants to.

  New drivers:

   - new driver for the Aspeed GPIO front-end companion to the pin
     controller merged through the pin control tree.

   - new driver for the LP873x PMIC GPIO portions.

   - new driver for Technologic Systems' I2C FPGA GPIO such as TS4900,
     TS-7970, TS-7990 and TS-4100.

   - new driver for the Broadcom BCM63xx series including BCM6338 and
     BCM6345.

   - new driver for the Intel WhiskeyCove PMIC GPIO.

   - new driver for the Allwinner AXP209 PMIC GPIO portions.

   - new driver for Diamond Systems 48 line GPIO-MM, another of these
     port-mapped I/O expansion cards.

   - support the STMicroelectronics STMPE1600 variant in the STMPE
     driver.

  Driver improvements:

   - the STMPE driver now supports rising/falling edge detection
     properly for IRQs.

   - the PCA954x will now fetch and enable its VCC regulator properly.

   - major rework of the PCA953x driver with the goal of eventually
     switching it over to use regmap and thus modernize it even more.

   - switch the IOP driver to use the generic MMIO GPIO library.

   - move the ages old HTC EGPIO (extended GPIO) GPIO expander driver
     over to this subsystem from MFD, achieveing some separation of
     concerns"

* tag 'gpio-v4.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (81 commits)
  gpio: add missing static inline
  gpio: OF: localize some gpiochip init functions
  gpio: acpi: separation of concerns
  gpio: OF: separation of concerns
  gpio: make memory-mapped drivers depend on HAS_IOMEM
  gpio: stmpe: use BIT() macro
  gpio: stmpe: forbid unused lines to be mapped as IRQs
  mfd/gpio: Move HTC GPIO driver to GPIO subsystem
  gpio: MAINTAINERS: Add an entry for GPIO mockup driver
  gpio/mockup: add virtual gpio device
  gpio: Added zynq specific check for special pins on bank zero
  gpio: axp209: Implement get_direction
  gpio: aspeed: remove redundant return value check
  gpio: loongson1: remove redundant return value check
  ARM: omap2: fix missing include
  gpio: tc3589x: fix up complaints on unsigned
  gpio: tc3589x: add .get_direction() and small cleanup
  gpio: f7188x: use gpiochip_get_data instead of container_of
  gpio: tps65218: use devm_gpiochip_add_data() for gpio registration
  gpio: aspeed: fix return value check in aspeed_gpio_probe()
  ...
2016-10-05 11:49:09 -07:00
Linus Torvalds 597f03f9d1 Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull CPU hotplug updates from Thomas Gleixner:
 "Yet another batch of cpu hotplug core updates and conversions:

   - Provide core infrastructure for multi instance drivers so the
     drivers do not have to keep custom lists.

   - Convert custom lists to the new infrastructure. The block-mq custom
     list conversion comes through the block tree and makes the diffstat
     tip over to more lines removed than added.

   - Handle unbalanced hotplug enable/disable calls more gracefully.

   - Remove the obsolete CPU_STARTING/DYING notifier support.

   - Convert another batch of notifier users.

   The relayfs changes which conflicted with the conversion have been
   shipped to me by Andrew.

   The remaining lot is targeted for 4.10 so that we finally can remove
   the rest of the notifiers"

* 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (46 commits)
  cpufreq: Fix up conversion to hotplug state machine
  blk/mq: Reserve hotplug states for block multiqueue
  x86/apic/uv: Convert to hotplug state machine
  s390/mm/pfault: Convert to hotplug state machine
  mips/loongson/smp: Convert to hotplug state machine
  mips/octeon/smp: Convert to hotplug state machine
  fault-injection/cpu: Convert to hotplug state machine
  padata: Convert to hotplug state machine
  cpufreq: Convert to hotplug state machine
  ACPI/processor: Convert to hotplug state machine
  virtio scsi: Convert to hotplug state machine
  oprofile/timer: Convert to hotplug state machine
  block/softirq: Convert to hotplug state machine
  lib/irq_poll: Convert to hotplug state machine
  x86/microcode: Convert to hotplug state machine
  sh/SH-X3 SMP: Convert to hotplug state machine
  ia64/mca: Convert to hotplug state machine
  ARM/OMAP/wakeupgen: Convert to hotplug state machine
  ARM/shmobile: Convert to hotplug state machine
  arm64/FP/SIMD: Convert to hotplug state machine
  ...
2016-10-03 19:43:08 -07:00
Linus Walleij 9132ce450b ARM: omap2: fix missing include
commit d47529b2e9
"gpio: don't include module.h in shared driver header"
removed <linux/module.h> from the <linux/gpio/driver.h> header.

It seems arch/arm/mach-omap2/board-rx51-peripherals.c
is using __initdata_or_module from <linux/module.h> through
<linux/gpio.h> to <linux/gpio/driver.h>, so break this dependency
so that we get a clean compile.

Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Tony Lindgren <tony@atomide.com>
Fixes: d47529b2e9 ("gpio: don't include module.h in shared driver header")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-09-23 14:41:55 +02:00
Sebastian Andrzej Siewior a4fa9cc220 ARM/OMAP/wakeupgen: Convert to hotplug state machine
Install the callbacks via the state machine.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Tony Lindgren <tony@atomide.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: rt@linutronix.de
Cc: linux-omap@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/20160906170457.32393-4-bigeasy@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-09-19 21:44:26 +02:00
Arnd Bergmann 260caadebd Two patches from Javier Martinez Canillas <javier@osg.samsung.com>
to update mach-omap1 and mach-oamp2 to use IS_ENABLED macro.
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Merge tag 'omap-for-v4.9/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup

Merge "omap soc updates for v4.9 merge window" from Tony Lindgren:

Two patches from Javier Martinez Canillas <javier@osg.samsung.com>
to update mach-omap1 and mach-oamp2 to use IS_ENABLED macro.

* tag 'omap-for-v4.9/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: use IS_ENABLED() instead of checking for built-in or module
  ARM: OMAP1: use IS_ENABLED() instead of checking for built-in or module
2016-09-02 18:33:47 +02:00
Arnd Bergmann 55d421b40c Remove the last two legacy board-*.c files for omap3 for legacy
booting for v4.8 to allow making mach-omap2 device tree only for
 v4.9.
 
 We've had Nokia N900 and omap3 LDP board-*.c files remaining
 while other omap3 devices have been device tree only for quite
 a while now. Also N900 and LDP have had device tree based booting
 working for years now, but few drivers for N900 were still only
 working in legacy only mode until recently. With the remaining
 issues out of the way, we discussed on the mailing lists that
 we're finally OK to remove the remaining board-*.c files.
 
 For the timing of this pull request, I wanted to wait until
 v4.8-rc1 is out to make sure the legacy booting still works fine
 after the merge window before doing it.
 
 And for v4.8, let's not touch any other platform data in case we
 still need to revert for some reason. This makes the revert just a
 question of adding back the legacy board-*.c files.
 
 Then if no issues, we can remove the unused remaining platform
 data later on for v4.9.
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Merge tag 'omap-for-v4.8/legacy-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup

Merge "drop last omap3 board files for v4.8" from Tony Lindgren:

Remove the last two legacy board-*.c files for omap3 for legacy
booting for v4.8 to allow making mach-omap2 device tree only for
v4.9.

We've had Nokia N900 and omap3 LDP board-*.c files remaining
while other omap3 devices have been device tree only for quite
a while now. Also N900 and LDP have had device tree based booting
working for years now, but few drivers for N900 were still only
working in legacy only mode until recently. With the remaining
issues out of the way, we discussed on the mailing lists that
we're finally OK to remove the remaining board-*.c files.

For the timing of this pull request, I wanted to wait until
v4.8-rc1 is out to make sure the legacy booting still works fine
after the merge window before doing it.

And for v4.8, let's not touch any other platform data in case we
still need to revert for some reason. This makes the revert just a
question of adding back the legacy board-*.c files.

Then if no issues, we can remove the unused remaining platform
data later on for v4.9.

* tag 'omap-for-v4.8/legacy-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Drop legacy board file for LDP
  ARM: OMAP2+: Drop legacy board file for n900
2016-09-02 18:30:29 +02:00
Javier Martinez Canillas 502ad2a669 ARM: OMAP2+: use IS_ENABLED() instead of checking for built-in or module
The IS_ENABLED() macro checks if a Kconfig symbol has been enabled either
built-in or as a module, use that macro instead of open coding the same.

Using the macro makes the code more readable by helping abstract away some
of the Kconfig built-in and module enable details.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-08-26 08:42:35 -07:00
Tony Lindgren 5f3530a041 Merge branch 'omap-for-v4.8/soc' into omap-for-v4.8/fixes 2016-08-15 08:29:44 -07:00
Linus Torvalds f0936155f2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Fix several cases of missing of_node_put() calls in various
    networking drivers.  From Peter Chen.

 2) Don't try to remove unconfigured VLANs in qed driver, from Yuval
    Mintz.

 3) Unbalanced locking in TIPC error handling, from Wei Yongjun.

 4) Fix lockups in CPDMA driver, from Grygorii Strashko.

 5) More MACSEC refcount et al fixes, from Sabrina Dubroca.

 6) Fix MAC address setting in r8169 during runtime suspend, from
    Chun-Hao Lin.

 7) Various printf format specifier fixes, from Heinrich Schuchardt.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (59 commits)
  qed: Fail driver load in 100g MSI mode.
  ethernet: ti: davinci_emac: add missing of_node_put after calling of_parse_phandle
  ethernet: stmicro: stmmac: add missing of_node_put after calling of_parse_phandle
  ethernet: stmicro: stmmac: dwmac-socfpga: add missing of_node_put after calling of_parse_phandle
  ethernet: renesas: sh_eth: add missing of_node_put after calling of_parse_phandle
  ethernet: renesas: ravb_main: add missing of_node_put after calling of_parse_phandle
  ethernet: marvell: pxa168_eth: add missing of_node_put after calling of_parse_phandle
  ethernet: marvell: mvpp2: add missing of_node_put after calling of_parse_phandle
  ethernet: marvell: mvneta: add missing of_node_put after calling of_parse_phandle
  ethernet: hisilicon: hns: hns_dsaf_main: add missing of_node_put after calling of_parse_phandle
  ethernet: hisilicon: hns: hns_dsaf_mac: add missing of_node_put after calling of_parse_phandle
  ethernet: cavium: octeon: add missing of_node_put after calling of_parse_phandle
  ethernet: aurora: nb8800: add missing of_node_put after calling of_parse_phandle
  ethernet: arc: emac_main: add missing of_node_put after calling of_parse_phandle
  ethernet: apm: xgene: add missing of_node_put after calling of_parse_phandle
  ethernet: altera: add missing of_node_put
  8139too: fix system hang when there is a tx timeout event.
  qed: Fix error return code in qed_resc_alloc()
  net: qlcnic: avoid superfluous assignement
  dsa: b53: remove redundant if
  ...
2016-08-03 07:26:11 -04:00
Linus Torvalds 43a0a98aa8 ARM: SoC driver updates for v4.8
Driver updates for ARM SoCs.
 
 A slew of changes this release cycle. The reset driver tree, that we merge
 through arm-soc for historical reasons, is also sizable this time around.
 
 Among the changes:
 
  - clps711x: Treewide changes to compatible strings, merged here for simplicity.
  - Qualcomm: SCM firmware driver cleanups, move to platform driver
  - ux500: Major cleanups, removal of old mach-specific infrastructure.
  - Atmel external bus memory driver
  - Move of brcmstb platform to the rest of bcm
  - PMC driver updates for tegra, various fixes and improvements
  - Samsung platform driver updates to support 64-bit Exynos platforms
  - Reset controller cleanups moving to devm_reset_controller_register() APIs
  - Reset controller driver for Amlogic Meson
  - Reset controller driver for Hisilicon hi6220
  - ARM SCPI power domain support
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Olof Johansson:
 "Driver updates for ARM SoCs.

  A slew of changes this release cycle.  The reset driver tree, that we
  merge through arm-soc for historical reasons, is also sizable this
  time around.

  Among the changes:

   - clps711x: Treewide changes to compatible strings, merged here for simplicity.
   - Qualcomm: SCM firmware driver cleanups, move to platform driver
   - ux500: Major cleanups, removal of old mach-specific infrastructure.
   - Atmel external bus memory driver
   - Move of brcmstb platform to the rest of bcm
   - PMC driver updates for tegra, various fixes and improvements
   - Samsung platform driver updates to support 64-bit Exynos platforms
   - Reset controller cleanups moving to devm_reset_controller_register() APIs
   - Reset controller driver for Amlogic Meson
   - Reset controller driver for Hisilicon hi6220
   - ARM SCPI power domain support"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (100 commits)
  ARM: ux500: consolidate base platform files
  ARM: ux500: move soc_id driver to drivers/soc
  ARM: ux500: call ux500_setup_id later
  ARM: ux500: consolidate soc_device code in id.c
  ARM: ux500: remove cpu_is_u* helpers
  ARM: ux500: use CLK_OF_DECLARE()
  ARM: ux500: move l2x0 init to .init_irq
  mfd: db8500 stop passing around platform data
  ASoC: ab8500-codec: remove platform data based probe
  ARM: ux500: move ab8500_regulator_plat_data into driver
  ARM: ux500: remove unused regulator data
  soc: raspberrypi-power: add CONFIG_OF dependency
  firmware: scpi: add CONFIG_OF dependency
  video: clps711x-fb: Changing the compatibility string to match with the smallest supported chip
  input: clps711x-keypad: Changing the compatibility string to match with the smallest supported chip
  pwm: clps711x: Changing the compatibility string to match with the smallest supported chip
  serial: clps711x: Changing the compatibility string to match with the smallest supported chip
  irqchip: clps711x: Changing the compatibility string to match with the smallest supported chip
  clocksource: clps711x: Changing the compatibility string to match with the smallest supported chip
  clk: clps711x: Changing the compatibility string to match with the smallest supported chip
  ...
2016-08-01 18:36:01 -04:00
Linus Torvalds fbae5cbb43 ARM: SoC platform updates for v4.8
Improved and new platform support for various SoCs:
 
  - New SoC support:
    - Broadcom BCM23550
    - Freescale i.MX7Solo
    - Qualcomm MDM9615
    - Renesas r8a7792
  - Conversion of clps711x to multiplatform
  - debug uart improvements for Atmel platforms
  - Tango platform improvements: HOTPLUG_CPU, Suspend-to-ram
  - OMAP tweaks and improvements to hwmod
  - OMAP support for kexec on SMP
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates from Olof Johansson:
 "Improved and new platform support for various SoCs:

  New SoC support:
   - Broadcom BCM23550
   - Freescale i.MX7Solo
   - Qualcomm MDM9615
   - Renesas r8a7792

  Improvements:
   - convert clps711x to multiplatform
   - debug uart improvements for Atmel platforms
   - Tango platform improvements: HOTPLUG_CPU, Suspend-to-ram
   - OMAP tweaks and improvements to hwmod
   - OMAP support for kexec on SMP"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (109 commits)
  ARM: davinci: fix build break because of undeclared dm365_evm_snd_data
  ARM: s3c64xx: smartq: Avoid sparse warnings
  ARM: sti: Implement dummy L2 cache's write_sec
  ARM: STi: Update machine _namestr to be more generic.
  arm: meson: explicitly select clk drivers
  ARM: tango: add Suspend-to-RAM support
  ARM: hisi: consolidate the hisilicon machine entries
  ARM: tango: fix CONFIG_HOTPLUG_CPU=n build
  MAINTAINERS: Update BCM281XX/BCM11XXX/BCM216XX entry
  MAINTAINERS: Update BCM63XX entry
  MAINTAINERS: Add NS2 entry
  MAINTAINERS: Fix nsp false-positives
  MAINTAINERS: Change L to M for Broadcom ARM/ARM64 SoC entries
  ARM: debug: Enable DEBUG_BCM_5301X for Northstar Plus SoCs
  ARM: clps711x: Switch to MULTIPLATFORM
  ARM: clps711x: Remove boards support
  ARM: clps711x: Add basic DT support
  ARM: clps711x: Reduce static map size
  ARM: SAMSUNG: Constify iomem address passed to s5p_init_cpu
  ARM: oxnas: Change OX810SE default driver config
  ...
2016-08-01 18:27:08 -04:00
Linus Torvalds 6f888fe31d ARM: SoC cleanups for v4.8
The cleanup branch keeps going down in size as we've completed a lot of
 the major legacy platform removals and conversions.
 
 A handful of changes this time around, some of the themes or larger sets are:
 
  - A bunch of i.MX cleanups around platform detection, init call cleanups
  - Misc fixes of missing/implicit includes
  - Removal of ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB
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Merge tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanups from Olof Johansson:
 "The cleanup branch keeps going down in size as we've completed a lot
  of the major legacy platform removals and conversions.

  A handful of changes this time around, some of the themes or larger
  sets are:

   - A bunch of i.MX cleanups around platform detection, init call cleanups
   - Misc fixes of missing/implicit includes
   - Removal of ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB"

* tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (40 commits)
  ARM: mps2: fix typo
  ARM: s3c64xx: avoid warning about 'struct device_node'
  bus: mvebu-mbus: make mvebu_mbus_syscore_ops static
  bus: mvebu-mbus: fix __iomem on register pointers
  ARM: tegra: Remove board_init_funcs array
  ARM: iop: Fix indentation
  ARM: imx: remove cpu_is_mx*()
  ARM: imx: remove last call to cpu_is_mx5*
  ARM: imx: rework mx27_pm_init() call
  ARM: imx: deconstruct mx3_idle
  ARM: imx: deconstruct mxc_rnga initialization
  ARM: imx: remove cpu_is_mx1 check
  ARM: i.MX: Do not explicitly call l2x0_of_init()
  ARM: i.MX: system.c: Tweak prefetch settings for performance
  ARM: i.MX: system.c: Replace magic numbers
  ARM: i.MX: system.c: Remove redundant errata 752271 code
  ARM: i.MX: system.c: Convert goto to if statement
  ARM: Kirkwood: fix kirkwood_pm_init() declaration/type
  ARM: Kirkwood: make kirkwood_disable_mbus_error_propagation() static
  ARM: orion5x: make orion5x_legacy_handle_irq static
  ...
2016-08-01 18:21:13 -04:00
Grygorii Strashko 213fa10db2 ARM: OMAP2+: omap_device: fix crash on omap_device removal
Below call chain causes system crash when OMAP device is
removed by calling of_platform_depopulate()/device_del():

device_del()
- blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
 			     BUS_NOTIFY_DEL_DEVICE, dev);
  - _omap_device_notifier_call()
    - omap_device_delete()
      - od->pdev->archdata.od = NULL;
	kfree(od->hwmods);
	kfree(od);
  - bus_remove_device()
    - device_release_driver()
      - __device_release_driver()
	- pm_runtime_get_sync()
	   - _od_runtime_resume()
	     - omap_hwmod_enable() <- OOPS od's delted already

Backtrace:
Unable to handle kernel NULL pointer dereference at virtual address 0000000d
pgd = eb100000
[0000000d] *pgd=ad6e1831, *pte=00000000, *ppte=00000000
Internal error: Oops: 17 [#1] PREEMPT SMP ARM
CPU: 1 PID: 1273 Comm: modprobe Not tainted 4.4.15-rt19-00115-ge4d3cd3-dirty #68
Hardware name: Generic DRA74X (Flattened Device Tree)
task: eb1ee800 ti: ec962000 task.ti: ec962000
PC is at omap_device_enable+0x10/0x90
LR is at _od_runtime_resume+0x10/0x24
[...]
[<c00299dc>] (omap_device_enable) from [<c0029a6c>] (_od_runtime_resume+0x10/0x24)
[<c0029a6c>] (_od_runtime_resume) from [<c04ad404>] (__rpm_callback+0x20/0x34)
[<c04ad404>] (__rpm_callback) from [<c04ad438>] (rpm_callback+0x20/0x80)
[<c04ad438>] (rpm_callback) from [<c04aee28>] (rpm_resume+0x48c/0x964)
[<c04aee28>] (rpm_resume) from [<c04af360>] (__pm_runtime_resume+0x60/0x88)
[<c04af360>] (__pm_runtime_resume) from [<c04a4974>] (__device_release_driver+0x30/0x100)
[<c04a4974>] (__device_release_driver) from [<c04a4a60>] (device_release_driver+0x1c/0x28)
[<c04a4a60>] (device_release_driver) from [<c04a38c0>] (bus_remove_device+0xec/0x144)
[<c04a38c0>] (bus_remove_device) from [<c04a0764>] (device_del+0x10c/0x210)
[<c04a0764>] (device_del) from [<c04a67b0>] (platform_device_del+0x18/0x84)
[<c04a67b0>] (platform_device_del) from [<c04a6828>] (platform_device_unregister+0xc/0x20)
[<c04a6828>] (platform_device_unregister) from [<c05adcfc>] (of_platform_device_destroy+0x8c/0x90)
[<c05adcfc>] (of_platform_device_destroy) from [<c04a02f0>] (device_for_each_child+0x4c/0x78)
[<c04a02f0>] (device_for_each_child) from [<c05adc5c>] (of_platform_depopulate+0x30/0x44)
[<c05adc5c>] (of_platform_depopulate) from [<bf123920>] (cpsw_remove+0x68/0xf4 [ti_cpsw])
[<bf123920>] (cpsw_remove [ti_cpsw]) from [<c04a68d8>] (platform_drv_remove+0x24/0x3c)
[<c04a68d8>] (platform_drv_remove) from [<c04a49c8>] (__device_release_driver+0x84/0x100)
[<c04a49c8>] (__device_release_driver) from [<c04a4b20>] (driver_detach+0xac/0xb0)
[<c04a4b20>] (driver_detach) from [<c04a3be8>] (bus_remove_driver+0x60/0xd4)
[<c04a3be8>] (bus_remove_driver) from [<c00d9870>] (SyS_delete_module+0x184/0x20c)
[<c00d9870>] (SyS_delete_module) from [<c0010540>] (ret_fast_syscall+0x0/0x1c)
Code: e3500000 e92d4070 1590630c 01a06000 (e5d6300d)

Hence, fix it by using BUS_NOTIFY_REMOVED_DEVICE event for OMAP device
deletion which is sent when DD has finished processing of device
deletion.

Cc: Tony Lindgren <tony@atomide.com>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-30 21:00:34 -07:00
Dave Gerlach e4e5328770 ARM: OMAP4+: CM: Remove redundant checks for clkctrl_offs of zero
Now that we have moved the check for valid clkctrl_offs to the caller of
am33xx_cm_wait_module_ready/idle and omap4_cminst_wait_module_ready/idle
let's remove the now redundant check for clkctrl_offs from these functions.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-07-22 23:10:57 -07:00
Dave Gerlach 428929c79c ARM: OMAP4+: Have _omap4_wait_target_* check for valid clkctrl_offs
Previously the low-level CM call internal to the
_omap4_wait_target_ready/disable calls was responsible for checking for
a valid clkctrl_offs. Now we must also consider the value of the
prcm.omap4.flags because if HWMOD_OMAP4_ZERO_CLKCTRL_OFFSET is set in
the flags then clkctrl_offs of 0 is valid.

Let's add this check into the _omap4_wait_target_ready/disable where we
have access to both the clkctrl_offs and the flags values and simply
return 0 without calling the low level CM call at all, which would have
returned 0 anyway if the clktrl_offs was zero.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-07-22 23:10:15 -07:00
Dave Gerlach ddb0d99d53 ARM: OMAP2+: AM33XX: Add HWMOD_OMAP4_ZERO_CLKCTRL_OFFSET flag to rtc hwmod
The RTC hwmod on AM335x family of SoCs is unique in that the
clkctrl_offs in the PRCM is 0. We rely on a clkctrl_offs of zero as
indicating no clkctrl is present so we must flag this hwmod with
HWMOD_OMAP4_ZERO_CLKCTRL_OFFSET to indicate the 0 clkctrl_offs is in
fact valid in this case.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-07-22 23:09:42 -07:00
Dave Gerlach 60a5b87504 ARM: OMAP4+: hwmod: Add hwmod flag for HWMOD_OMAP4_ZERO_CLKCTRL_OFFSET
Nearly all modules on OMAP4 and newer platforms have clkctrl offsets
that are non-zero except for the RTC on am335x. Because we rely on a
clkctrl_offset of zero to indicate no clkctrl_offset being present,
lets add a HWMOD_OMAP4_ZERO_CLKCTRL_OFFSET flag to use to indicate
hwmods that have a valid clkctrl_offset of 0.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-07-22 23:08:58 -07:00
Sebastian Reichel b46211d6dc ARM: OMAP3: hwmod data: Add sysc information for DSI
Add missing sysconfig/sysstatus information
to OMAP3 hwmod. The information has been
checked against OMAP34xx and OMAP36xx TRM.

Without this change DSI block is not reset
during boot, which is required for working
Nokia N950 display.

Signed-off-by: Sebastian Reichel <sre@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-07-22 23:05:34 -07:00
Tony Lindgren e92fc4f04a ARM: OMAP2+: Drop legacy board file for LDP
Let's drop the last two remaining omap3 legacy boot board files.
Let's only use the device tree based booting known to work for
these two boards.

We still have two omap3 boards booting in legacy mode in addition
to device tree based booting. All the other ten or so omap2+ SoCs
have been booting using device tree mode only for years now. This
has allowed us to get rid of quite a bit of arch/arm/mach-omap2
related platform init code in favor of dts and driver changes.

Pretty much the only remaining known users for omap3 legacy boot
board files are Kevin's and Russell's boot test systems, and N900
kernel tree maintained by Pali and Ivaylo. And all of them are
also supporting the device tree based booting. The legacy booting
mode has been kept around mostly to verify against regressions.

As there is still a slim chance of possible other uses of the
mainline kernel for these boards, let's just drop the board
files for v4.8, and let's not touch the related platform init
code until around v4.9 time if no issues are found. This makes
it trivial for us to add back the board files with a simple revert.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-07-10 23:47:38 -07:00
Tony Lindgren 9b7141d01a ARM: OMAP2+: Drop legacy board file for n900
Let's drop the last two remaining omap3 legacy boot board files.
Let's only use the device tree based booting known to work for
these two boards.

We still have two omap3 boards booting in legacy mode in addition
to device tree based booting. All the other ten or so omap2+ SoCs
have been booting using device tree mode only for years now. This
has allowed us to get rid of quite a bit of arch/arm/mach-omap2
related platform init code in favor of dts and driver changes.

Pretty much the only remaining known users for omap3 legacy boot
board files are Kevin's and Russell's boot test systems, and N900
kernel tree maintained by Pali and Ivaylo. And all of them are
also supporting the device tree based booting. The legacy booting
mode has been kept around mostly to verify against regressions.

As there is still a slim chance of possible other uses of the
mainline kernel for these boards, let's just drop the board
files for v4.8, and let's not touch the related platform init
code until around v4.9 time if no issues are found. This makes
it trivial for us to add back the board files with a simple revert.

Acked-By: Sebastian Reichel <sre@kernel.org>
Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-07-10 23:47:24 -07:00
Tony Lindgren e15d11ea55 Merge remote-tracking branch 'peter/peter/for-4.8_omapdss_part1' into omap-for-v4.8/legacy 2016-07-10 23:47:12 -07:00
Arnd Bergmann 04b6d0a300 Few more omap SoC changes for v4.8 merge window:
- Fix a make randconfig build error for recent SMP kexec changes
 
 - A series of clock related fixes to prepare things for moving
   device clkctrl register handling to drivers/clk
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Merge tag 'omap-for-v4.8/soc-pt2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc

Merge "Few more omap SoC changes for v4.8 merge window" from Tony Lindgren:

- Fix a make randconfig build error for recent SMP kexec changes

- A series of clock related fixes to prepare things for moving
  device clkctrl register handling to drivers/clk

* tag 'omap-for-v4.8/soc-pt2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: AM33xx: fix module_wait_ready without clkctrl register
  ARM: OMAP2+: clockdomain: add usecounting support to autoidle APIs
  ARM: OMAP2+: timer: change order of hwmod data handling
  ARM: OMAP2+: hwmod: fetch main_clk based on hwmod name
  ARM: OMAP2+: omap_device: create clock alias purely from DT data
  ARM: OMAP2+: Fix build with CONFIG_SMP and CONFIG_PM is not set
2016-07-07 14:34:43 +02:00
Arnd Bergmann 7c2d780ec0 Merge ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB changes into next/soc
* commit '5c34a4e89c743339f78cafb2f2a826a010f0746a':
  ARM: do away with ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB
  ARM: uniphier: drop code for old DT binding

These cause a harmless conflict with the clps711x multiplatform
support, and it's easy to resolve.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-07-06 18:00:32 +02:00
Tero Kristo 183e2077d0 ARM: AM33xx: fix module_wait_ready without clkctrl register
If the module has no clkctrl register defined, module_wait_ready should
not try to access this. This can potentially cause an illegal register
access, and result in bad idle reporting also.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-07-04 07:15:47 -07:00
Tero Kristo 1d9a542565 ARM: OMAP2+: clockdomain: add usecounting support to autoidle APIs
The previous implementation was racy in many locations, where the current
status of the clockdomain was read out, some operations were executed,
and the previous status info was used afterwards to decide next state
for the clockdomain. Instead, fix the implementation of the allow_idle /
deny_idle APIs to properly have usecounting support. This allows clean
handling internally within the clockdomain core, and simplifies the
usage also within hwmod.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-07-04 07:15:38 -07:00
Tero Kristo e98580e880 ARM: OMAP2+: timer: change order of hwmod data handling
With the introduction of hwmod module clocks, the name of the hwmod
main clk may not be available before hwmod setup, as hwmod setup
may lookup the main clock dynamically based on the hwmod name.
Thus, change the order of hwmod setup and main clock handling for
the timer code, to make sure the main clock is going to be
available.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-07-04 07:15:28 -07:00
Tero Kristo 9fabc1a26e ARM: OMAP2+: hwmod: fetch main_clk based on hwmod name
With the transition to hwmod module clocks, all hwmods will have
their main clocks named <hwmod_name>_mod_ck. Use this info to
fetch main_clk, and use it if found.

Also, if a main_clk is found based on the hwmod name, disable
the direct PRCM modulemode access from hwmod.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-07-04 07:15:22 -07:00
Tero Kristo 59dcfc48eb ARM: OMAP2+: omap_device: create clock alias purely from DT data
This avoids the need to add most of the clock aliases under
drivers/clk/ti/clk-xyz.c files.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-07-03 23:42:53 -07:00
Tony Lindgren b3bf289c1c ARM: OMAP2+: Fix build with CONFIG_SMP and CONFIG_PM is not set
I found one more make randconfig build error with the recent
SMP kexec changes. We need the mpuss now always available early.

Fixes: 0573b957fc ("ARM: OMAP4+: Prevent CPU1 related hang
with kexec")
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-07-03 23:29:45 -07:00
Ivaylo Dimitrov 79cdad3635 ir-rx51: use hrtimer instead of dmtimer
Drop dmtimer usage for pulse timer in favor of hrtimer. That allows
removing PWM dmitimer platform data usage.

Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-29 21:54:35 -07:00
Ivaylo Dimitrov b540617698 ir-rx51: add DT support to driver
With the upcoming removal of legacy boot, lets add support to one of the
last N900 drivers remaining without it. As the driver still uses omap
dmtimer, add auxdata as well.

Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-29 21:54:23 -07:00
Ivaylo Dimitrov 3fdd1526e6 ir-rx51: use PWM framework instead of OMAP dmtimer
Convert driver to use PWM framework instead of calling dmtimer functions
directly for PWM timer. Remove paragraph about writing to the Free Software
Foundation's mailing address while at it.

Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-29 21:54:13 -07:00
Tony Lindgren 44e7475d40 ARM: OMAP2+: Fix build if CONFIG_SMP is not set
Looks like I only partially fixed up things if CONFIG_SMP
is not set for the recent kexec changes. We don't have
boot_secondary available without SMP as reported by Arnd.

Fixes: 0573b957fc ("ARM: OMAP4+: Prevent CPU1 related hang with kexec")
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-27 23:30:02 -07:00
Tony Lindgren 3696203c47 ARM: OMAP4+: Allow kexec on SMP variants
Kexec needs omap4_cpu_kill, otherwise kexec will produce on SMP:

kexec_load failed: Invalid argument

Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-22 22:57:02 -07:00
Tony Lindgren 3251885285 ARM: OMAP4+: Reset CPU1 properly for kexec
We need to reset CPU1 properly for kexec when booting different
kernel versions. Otherwise CPU1 will attempt to boot the the
previous kernel's start_secondary(). Note that the restctrl
register is different from the low-power mode wakeup register
CPU1_WAKEUP_NS_PA_ADDR. We need to configure both.

Let's fix the issue by defining SoC specific data to initialize
things in a more generic way. And let's also standardize omap-smp.c
to use soc_is instead of cpu_is while at it.

Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-22 22:55:53 -07:00
Tony Lindgren 0573b957fc ARM: OMAP4+: Prevent CPU1 related hang with kexec
Kexec booted kernels on omap4 will hang early during the boot if the
booted kernel is different version from the previous kernel.

This is because the previous kernel may have configured low-power mode
using CPU1_WAKEUP_NS_PA_ADDR. In that case it points to the previous
kernel's omap4_secondary_startup(), and CPU1 can be in low power mode
from the previous kernel. When the new kernel configures the CPU1
clockdomain, CPU1 can wake from low power state prematurely during
omap44xx_clockdomains_init() running random code.

Let's fix the issue by configuring CPU1_WAKEUP_NS_PA_ADDR before we
call omap44xx_clockdomains_init(). Note that this is very early during
the init, and we will do proper CPU1 reset during SMP init a bit later
on in omap4_smp_prepare_cpus(). And we need to do this when SMP is
not enabled as the previous kernel may have had it enabled.

Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-22 22:55:51 -07:00
Tony Lindgren f4b9f40ae9 ARM: OMAP4+: Initialize SAR RAM base early for proper CPU1 reset for kexec
Prepare things for making kexec work on SMP omap variants by initializing
SARM RAM base early. This allows us to configure CPU1 for kexec in case
the previous kernel has put CPU1 in low power mode.

Note that this should not prevent moving other SAR RAM code to live
under drivers. However for kexec, we will need this very early.

Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-22 22:55:47 -07:00
Tony Lindgren 99eb45f98c Merge commit 'c0053bd50af5' into omap-for-v4.8/soc 2016-06-22 22:55:18 -07:00
Keerthy 218092afa0 ARM: dts: am43xx: Remove wrongly defined RSTST offset for PER Domain
As per the TRM: http://www.ti.com/lit/ug/spruh73m/spruh73m.pdf
offset 0x4 is reserved for PRM_PER. Hence removing the wrongly
defined address offset.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-22 03:33:25 -07:00
Ben Dooks 41dc54830d ARM: OMAP: make ti81xx_rtc_hwmod static
The ti81xx_rtc_hwmod is not exported, or declared outside the file
arch/arm/mach-omap2/omap_hwmod_81xx_data.c so make it static to
avoid the following warning:

arch/arm/mach-omap2/omap_hwmod_81xx_data.c:246:19: warning: symbol 'ti81xx_rtc_hwmod' was not declared. Should it be static?

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-22 03:05:18 -07:00
Keerthy b00ccf5b68 ARM: AM43XX: hwmod: Fix RSTST register offset for pruss
pruss hwmod RSTST register wrongly points to PWRSTCTRL register in case of
am43xx. Fix the RSTST register offset value.

This can lead to setting of wrong power state values for PER domain.

Fixes: 1c7e224d ("ARM: OMAP2+: hwmod: AM335x: runtime register update")
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-22 02:55:44 -07:00
Olof Johansson 58935f24a9 Fixes for omaps for v4.7-rc cycle:
- Fix dra7 for hardware issues limiting L4Per and L3init power domains
   to on state. Without this the devices may not work correctly after
   some time of use because of asymmetric aging. And related to this,
   let's also remove the unusable states.
 
 - Always select omap interconnect for am43x as otherwise the am43x
   only configurations will not boot properly. This can happen easily
   for any product kernels that leave out other SoCs to save memory.
 
 - Fix DSS PLL2 addresses that have gone unused for now
 
 - Select erratum 430973 for omap3, this is now safe to do and can
   save quite a bit of debugging time for people who may have left
   it out.
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Merge tag 'omap-for-v4.7/fixes-powedomain' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Fixes for omaps for v4.7-rc cycle:

- Fix dra7 for hardware issues limiting L4Per and L3init power domains
  to on state. Without this the devices may not work correctly after
  some time of use because of asymmetric aging. And related to this,
  let's also remove the unusable states.

- Always select omap interconnect for am43x as otherwise the am43x
  only configurations will not boot properly. This can happen easily
  for any product kernels that leave out other SoCs to save memory.

- Fix DSS PLL2 addresses that have gone unused for now

- Select erratum 430973 for omap3, this is now safe to do and can
  save quite a bit of debugging time for people who may have left
  it out.

* tag 'omap-for-v4.7/fixes-powedomain' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP: DRA7: powerdomain data: Remove unused pwrsts_mem_ret
  ARM: OMAP: DRA7: powerdomain data: Remove unused pwrsts_logic_ret
  ARM: OMAP: DRA7: powerdomain data: Set L3init and L4per to ON
  ARM: OMAP2+: Select OMAP_INTERCONNECT for SOC_AM43XX
  ARM: dts: DRA74x: fix DSS PLL2 addresses
  ARM: OMAP2: Enable Errata 430973 for OMAP3
  + Linux 4.7-rc2

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-06-18 22:57:48 -07:00
Olof Johansson 9503427e91 Fixes for omaps for v4.7-rc cycle:
- Two boot warning fixes from the RCU tree that should have gotten
   merged several weeks ago already but did not because of issues
   with who merges them. Paul has now split the RCU warning fixes into
   sets for various maintainers.
 
 - Fix ams-delta FIQ regression caused by omap1 sparse IRQ changes
 
 - Fix PM for omap3 boards using timer12 and gptimer, like the
   original beagleboard
 
 - Fix hangs on am437x-sk-evm by lowering the I2C bus speed
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Merge tag 'fixes-rcu-fiq-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Fixes for omaps for v4.7-rc cycle:

- Two boot warning fixes from the RCU tree that should have gotten
  merged several weeks ago already but did not because of issues
  with who merges them. Paul has now split the RCU warning fixes into
  sets for various maintainers.

- Fix ams-delta FIQ regression caused by omap1 sparse IRQ changes

- Fix PM for omap3 boards using timer12 and gptimer, like the
  original beagleboard

- Fix hangs on am437x-sk-evm by lowering the I2C bus speed

* tag 'fixes-rcu-fiq-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: am437x-sk-evm: Reduce i2c0 bus speed for tps65218
  ARM: OMAP2+: timer: add probe for clocksources
  ARM: OMAP1: fix ams-delta FIQ handler to work with sparse IRQ
  arm: Use _rcuidle for smp_cross_call() tracepoints
  arm: Use _rcuidle tracepoint to allow use from idle

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-06-18 22:21:52 -07:00
Tero Kristo 970f9091d2 ARM: OMAP2+: timer: add probe for clocksources
A few platforms are currently missing clocksource_probe() completely
in their time_init functionality. On OMAP3430 for example, this is
causing cpuidle to be pretty much dead, as the counter32k is not
going to be registered and instead a gptimer is used as a clocksource.
This will tick in periodic mode, preventing any deeper idle states.

While here, also drop one unnecessary check for populated DT before
existing clocksource_probe() call.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-17 02:46:45 -07:00
Nishanth Menon 6b41d44862 ARM: OMAP: DRA7: powerdomain data: Remove unused pwrsts_mem_ret
As per the latest revision F of public TRM for DRA7/AM57xx SoCs
SPRUHZ6F[1] (April 2016), with the exception of MPU power domain, all
other power domains do not have memories capable of retention since
they all operate in either "ON" or "OFF" mode. For these power states,
the retention state for memories are basically ignored by PRCM and does
not require to be programmed.

[1] http://www.ti.com/lit/pdf/spruhz6

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-13 01:04:01 -07:00
Nishanth Menon 9ffb668f26 ARM: OMAP: DRA7: powerdomain data: Remove unused pwrsts_logic_ret
As per the latest revision F of public TRM for DRA7/AM57xx SoCs
SPRUHZ6F[1] (April 2016), with the exception of MPU power domain (and
CPUx sub power domains), all other power domains can either operate
in "ON" mode OR in some cases, "OFF" mode. For these power states,
the logic retention state is basically ignored by PRCM and does not
require to be programmed.

[1] http://www.ti.com/lit/pdf/spruhz6

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-13 01:04:01 -07:00
Nishanth Menon d16c0d722d ARM: OMAP: DRA7: powerdomain data: Set L3init and L4per to ON
As per the latest revision F of public TRM for DRA7/AM57xx SoCs
SPRUHZ6F[1] (April 2016), L4Per and L3init power domains now operate in
always "ON" mode due to asymmetric aging limitations. Update the same

[1] http://www.ti.com/lit/pdf/spruhz6

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-13 01:04:01 -07:00
Tomi Valkeinen 05a7ac7266 ARM: DRA7: hwmod: remove DSS addresses from hwmod
The addresses for DSS are provided in the DT data, so they can be
removed from the hwmod.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-10 05:10:52 -07:00
Vignesh R cab33b0e93 ARM: DRA7: hwmod: Remove QSPI address space entry from hwmod
QSPI address space information is passed from device tree. Therefore
remove legacy way of passing address space via hwmod data.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-10 05:09:46 -07:00
Peter Ujfalusi 3774bec74e ARM: OMAP2+: McBSP: Remove the old iclk allow/deny idle code
The new pdata callback (force_ick_on) is now used by the driver and the old
callback related code can be removed.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-10 05:07:25 -07:00
Peter Ujfalusi c26c84c92b ARM: OMAP3: pdata-quirks: Add support for McBSP2/3 sidetone handling
McBSP2/3 module's sidetone module operates using the module's ICLK clock.
When the Sidetone is in use the interface clock of the module must not
idle. To prevent the iclk idling the driver expects to have pdata callback
to call. With this patch the callback is going to be set up for DT boot
also.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-10 05:07:23 -07:00
Peter Ujfalusi 53ae95f6d5 ARM: OMAP3: McBSP: New callback for McBSP2/3 ICLK idle configuration
McBSP2/3 module's sidetone module operates using the module's ICLK clock.
When the Sidetone is in use the interface clock of the module must not
idle. The new callback expects to receive the *clk of the module's ick and
not the id number of the McBSP. This will allow us more cleanups and going
to simplify the ICLK handling.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-10 05:07:22 -07:00
Peter Ujfalusi 3b80c9bef8 ARM: OMAP3: hwmod data: Fix McBSP2/3 sidetone data
The McBSPLP's sidetone main clock is the McBSPLP's ICLK, not FCLK as the
sidetone only receives the ICLK from the main McBSP module.
Since the McBSP and sidetone is using the very same clock from PRCM level
the sidetone must not have the prcm section to check the clock status since
the sidetone is only used when McBSP is already configured.
If two separate hwmods looking at the same bit and they would use
pm_runtime in nested way (as it must happen with McBSP and it's ST module)
the hwmod would warn, because the idlest will not match what it is expected
after enable/disable of the clocks.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-10 05:07:21 -07:00
Franklin S Cooper Jr 015d859193 ARM: AM335x/AM437x: hwmod: Remove eQEP, ePWM and eCAP hwmod entries
Devices that utilize the OCP registers and/or PRCM registers and
register bit fields should be modeled using hwmod. Since eQEP, ePWM and
eCAP don't fall under this category, remove their hwmod entries.

Instead these clocks simply use the clock that is passed through by its
parent PWMSS. Therefore, PWMSS handles the clock for itself and its
subdevices.

Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-10 05:02:34 -07:00
Andrea Gelmini 078508f85e ARM: OMAP2+: Fix typo in sdrc.h
Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-10 04:17:07 -07:00
Andrea Gelmini f733e7c0e0 ARM: OMAP2+: Fix typo in omap_device.c
Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-10 04:16:43 -07:00
Andrea Gelmini 6eedfcbea8 ARM: OMAP2+: Fix typo in omap4-common.c
Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-10 04:16:05 -07:00
Andrea Gelmini df85ac825c ARM: OMAP2+: Fix typo in mux34xx.c
Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-10 04:15:33 -07:00
Andrea Gelmini 3c4d4c2033 ARM: OMAP2+: Fix typo in cm3xxx.c
Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-10 04:14:37 -07:00
Dave Gerlach 8d29bdba72 ARM: OMAP2+: Select OMAP_INTERCONNECT for SOC_AM43XX
AM43XX SoCs make use of the omap_l3_noc driver so explicitly select
OMAP_INTERCONNECT in the Kconfig for SOC_AM43XX to ensure it always gets
enabled for AM43XX only builds.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-09 00:22:16 -07:00
Nishanth Menon 2e4094bdaa ARM: OMAP2: Enable Errata 430973 for OMAP3
Enable Erratum 430973 similar to commit 5c86c5339c ("ARM:
omap2plus_defconfig: Enable ARM erratum 430973 for omap3") - Since
multiple defconfigs can exist from various points of view (multi_v7,
omap2plus etc.. it is always better to enable the erratum from the
Kconfig selection point of view so that downstream kernels dont have
to rediscover this all over again.

Reported-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-09 00:16:18 -07:00
Olof Johansson c2b8d9200f Two fixes for omaps for v4.7 merge window, one to enable
ARM errata for am437x, and the other to add ARM errtum
 workaround for dra7.
 
 AFAIK these both can wait for v4.7, we can then request them
 for stable kernels as needed.
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Merge tag 'omap-for-v4.7/fixes-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Two fixes for omaps for v4.7 merge window, one to enable
ARM errata for am437x, and the other to add ARM errtum
workaround for dra7.

AFAIK these both can wait for v4.7, we can then request them
for stable kernels as needed.

* tag 'omap-for-v4.7/fixes-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: AM43XX: Enable fixes for Cortex-A9 errata
  ARM: OMAP5 / DRA7: Introduce workaround for 801819

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-06-03 12:27:08 -07:00
Linus Walleij 5c34a4e89c ARM: do away with ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB
This replaces:

- "select ARCH_REQUIRE_GPIOLIB" with "select GPIOLIB" as this can
  now be selected directly.

- "select ARCH_WANT_OPTIONAL_GPIOLIB" with no dependency: GPIOLIB
  is now selectable by everyone, so we need not declare our
  intent to select it.

When ordering the symbols the following rationale was used:
if the selects were in alphabetical order, I moved select GPIOLIB
to be in alphabetical order, but if the selects were not
maintained in alphabetical order, I just replaced
"select ARCH_REQUIRE_GPIOLIB" with "select GPIOLIB".

Cc: Michael Büsch <m@bues.ch>
Cc: arm@kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2016-06-03 12:18:13 -07:00
Peter Ujfalusi f8e0db9722 ARM: OMAP2: Use the platform_data header for omapdss
Instead of the full omapdss internal header, include only the platform_data
header.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2016-06-03 16:01:01 +03:00
Peter Ujfalusi c270e89bf2 ARM/video: omap2: Move omap_display_init declaration to mach-omap2/display.h
The omap_display_init() is implemented in the mach-omap2/display.c so the
declaration should have been there as well.
Change the board files to include display.h to avoid build breakage at the
same time.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2016-06-03 16:00:31 +03:00
Peter Ujfalusi 6697ad24b1 ARM: OMAP: rx51-video: Do not set TV connector_type
OMAP_DSS_VENC_TYPE_COMPOSITE is 0. There is no need to explicitly set the
connector_type.
This change is needed for the omapdss header cleanup.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2016-06-03 15:59:13 +03:00
Linus Torvalds 8bc4d5f394 MTD updates for v4.7:
First cycle with Boris as NAND maintainer! Many (most) bullets stolen from him.
 
 Generic:
 
  * Migrated NAND LED trigger to be a generic MTD trigger
 
 NAND:
 
  * Introduction of the "ECC algorithm" concept, to avoid overloading the ECC
    mode field too much more
  * Replaced the nand_ecclayout infrastructure with something a little more
    flexible (finally!) and future proof
  * Rework of the OMAP GPMC and NAND drivers; the TI folks pulled some of
    this into their own tree as well
  * Prepare the sunxi NAND driver to receive DMA support
  * Handle bitflips in erased pages on GPMI revisions that do not support
    this in hardware.
 
 SPI NOR:
 
  * Start using the spi_flash_read() API for SPI drivers that support it (i.e.,
    SPI drivers with special memory-mapped flash modes)
 
 And other small scattered improvments.
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Merge tag 'for-linus-20160523' of git://git.infradead.org/linux-mtd

Pull MTD updates from Brian Norris:
 "First cycle with Boris as NAND maintainer! Many (most) bullets stolen
  from him.

  Generic:
   - Migrated NAND LED trigger to be a generic MTD trigger

  NAND:
   - Introduction of the "ECC algorithm" concept, to avoid overloading
     the ECC mode field too much more
   - Replaced the nand_ecclayout infrastructure with something a little
     more flexible (finally!) and future proof
   - Rework of the OMAP GPMC and NAND drivers; the TI folks pulled some
     of this into their own tree as well
   - Prepare the sunxi NAND driver to receive DMA support
   - Handle bitflips in erased pages on GPMI revisions that do not
     support this in hardware.

  SPI NOR:
   - Start using the spi_flash_read() API for SPI drivers that support
     it (i.e., SPI drivers with special memory-mapped flash modes)

  And other small scattered improvments"

* tag 'for-linus-20160523' of git://git.infradead.org/linux-mtd: (155 commits)
  mtd: spi-nor: support GigaDevice gd25lq64c
  mtd: nand_bch: fix spelling of "probably"
  mtd: brcmnand: respect ECC algorithm set by NAND subsystem
  gpmi-nand: Handle ECC Errors in erased pages
  Documentation: devicetree: deprecate "soft_bch" nand-ecc-mode value
  mtd: nand: add support for "nand-ecc-algo" DT property
  mtd: mtd: drop NAND_ECC_SOFT_BCH enum value
  mtd: drop support for NAND_ECC_SOFT_BCH as "soft_bch" mapping
  mtd: nand: read ECC algorithm from the new field
  mtd: nand: fsmc: validate ECC setup by checking algorithm directly
  mtd: nand: set ECC algorithm to Hamming on fallback
  staging: mt29f_spinand: set ECC algorithm explicitly
  CRIS v32: nand: set ECC algorithm explicitly
  mtd: nand: atmel: set ECC algorithm explicitly
  mtd: nand: davinci: set ECC algorithm explicitly
  mtd: nand: bf5xx: set ECC algorithm explicitly
  mtd: nand: omap2: Fix high memory dma prefetch transfer
  mtd: nand: omap2: Start dma request before enabling prefetch
  mtd: nandsim: add __init attribute
  mtd: nand: move of_get_nand_xxx() helpers into nand_base.c
  ...
2016-05-24 11:00:20 -07:00
Linus Torvalds 9896c7b57e ARM: SoC platform updates for v4.7
We get support for three new 32-bit SoC platforms this time. The amount
 of changes in arch/arm for any of them is miniscule, as all the
 interesting code is in device driver subsystems (irqchip, clk, pinctrl,
 ...) these days. I'm listing them here, as the addition of the Kconfig
 statement is the main relevant milestone for a new platform. In each
 case, some drivers are are shared with existing platforms, while
 other drivers are added for v4.7 as well, or come in a later release.
 
 - The Aspeed platform is probably the most interesting one, this is
   what most whitebox servers use as their baseboard management
   controller. We get support for the very common ast2400 and ast2500
   SoCs. The OpenBMC project focuses on this chip, and the LWN
   article about their ELC 2016 presentation at
   https://lwn.net/Articles/683320/ triggered the submission, but the
   code comes from IBM's OpenPOWER team rather than the team at
   Facebook. There are still a lot more drivers that need to get added
   over time, and I hope both teams can work together on that.
 
 - OXNAS is an old platform for Network Attached Storage devices
   from Oxford Semiconductor. There are models with ARM10 (!) and
   ARM11MPCore cores, but for now, we only support the original ARM9
   based versions.
   The product lineup was subsequently part of PLX, Avago and now the
   new Broadcom Ltd. https://wiki.openwrt.org/doc/hardware/soc/soc.oxnas
   has some more information.
 
 - V2M-MPS2 is a prototyping platform from ARM for their Cortex-M
   cores and is related to the existing Realview / Versatile Express
   lineup, but without MMU. We now support various NOMMU platforms,
   so adding a new one is fairly straightforward.
   http://infocenter.arm.com/help/topic/com.arm.doc.100112_0100_03_en/
   has detailed information about the platform.
 
 Other noteworthy updates:
 
 - Work on LPC32xx has resumed, and Vladimir Zapolskiy and Sylvain Lemieux
   are now maintaining the platform. This is an older ARM9 based
   platform from NXP (not Freescale), but it remains in use in embedded
   markets.
 
 - Kevin Hilman is now co-maintaining the Amlogic Meson platform for both
   32-bit and 64-bit ARM, and started contributing some patches.
 
 - As is often the case, work on the OMAP platforms makes up the bulk of
   the actual SoC code changes in arch/arm, but there isn't a lot of
   that either.
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates from Arnd Bergmann:
 "We get support for three new 32-bit SoC platforms this time.

  The amount of changes in arch/arm for any of them is miniscule, as all
  the interesting code is in device driver subsystems (irqchip, clk,
  pinctrl, ...) these days.  I'm listing them here, as the addition of
  the Kconfig statement is the main relevant milestone for a new
  platform.  In each case, some drivers are are shared with existing
  platforms, while other drivers are added for v4.7 as well, or come in
  a later release.

   - The Aspeed platform is probably the most interesting one, this is
     what most whitebox servers use as their baseboard management
     controller.  We get support for the very common ast2400 and ast2500
     SoCs.  The OpenBMC project focuses on this chip, and the LWN
     article about their ELC 2016 presentation at

        https://lwn.net/Articles/683320/

     triggered the submission, but the code comes from IBM's OpenPOWER
     team rather than the team at Facebook.  There are still a lot more
     drivers that need to get added over time, and I hope both teams can
     work together on that.

   - OXNAS is an old platform for Network Attached Storage devices from
     Oxford Semiconductor.  There are models with ARM10 (!) and
     ARM11MPCore cores, but for now, we only support the original ARM9
     based versions.  The product lineup was subsequently part of PLX,
     Avago and now the new Broadcom Ltd.

        https://wiki.openwrt.org/doc/hardware/soc/soc.oxnas

     has some more information.

   - V2M-MPS2 is a prototyping platform from ARM for their Cortex-M
     cores and is related to the existing Realview / Versatile Express
     lineup, but without MMU.

     We now support various NOMMU platforms, so adding a new one is
     fairly straightforward.

        http://infocenter.arm.com/help/topic/com.arm.doc.100112_0100_03_en/

     has detailed information about the platform.

  Other noteworthy updates:

   - Work on LPC32xx has resumed, and Vladimir Zapolskiy and Sylvain
     Lemieux are now maintaining the platform.

     This is an older ARM9 based platform from NXP (not Freescale), but
     it remains in use in embedded markets.

   - Kevin Hilman is now co-maintaining the Amlogic Meson platform for
     both 32-bit and 64-bit ARM, and started contributing some patches.

   - As is often the case, work on the OMAP platforms makes up the bulk
     of the actual SoC code changes in arch/arm, but there isn't a lot
     of that either"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (42 commits)
  MAINTAINERS: ARM/Amlogic: add co-maintainer, misc. updates
  MAINTAINERS: add ARM/NXP LPC32XX SoC specific drivers to the section
  MAINTAINERS: add new maintainers of NXP LPC32xx SoC
  MAINTAINERS: move ARM/NXP LPC32xx record to ARM section
  arm: Add Aspeed machine
  ARM: lpc32xx: remove duplicate const on lpc32xx_auxdata_lookup
  ARM: lpc32xx: remove leftovers of legacy clock source and provider drivers
  ARM: lpc32xx: remove reboot header file
  ARM: dove: Remove CLK_IS_ROOT
  ARM: orion5x: Remove CLK_IS_ROOT
  ARM: mv78xx0: Remove CLK_IS_ROOT
  ARM: davinci: da850: use clk->set_parent for async3
  ARM: davinci: Move clock init after ioremap.
  MAINTAINERS: Update ARM Versatile Express platform entry
  ARM: vexpress/mps2: introduce MPS2 platform
  MAINTAINERS: add maintainer entry for ARM/OXNAS platform
  ARM: Add new mach-oxnas
  irqchip: versatile-fpga: add new compatible for OX810SE SoC
  ARM: uniphier: correct the call order of of_node_put()
  MAINTAINERS: fix stale TI DaVinci entries
  ...
2016-05-18 12:35:46 -07:00
Linus Torvalds f2b1e0f638 ARM: SoC cleanups and fixes for v4.7
Traditionally we've had two separate branches for cleanups and non-critical
 bug fixes, but both of these got smaller with each release and the differences
 are rather unclear now, so it seems more appropriate to have a combined
 branch.
 
 The most notably change is for OMAP, which gets a small rework to simplify
 handling of the AUXDATA mechanism used on machines that are not completely
 DT based yet, along with other work that is used as preparation for dropping
 the legacy board files.
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Merge tag 'armsoc-cleanups-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanups and fixes from Arnd Bergmann:
 "Traditionally we've had two separate branches for cleanups and
  non-critical bug fixes, but both of these got smaller with each
  release and the differences are rather unclear now, so it seems more
  appropriate to have a combined branch.

  The most notable change is for OMAP, which gets a small rework to
  simplify handling of the AUXDATA mechanism used on machines that are
  not completely DT based yet, along with other work that is used as
  preparation for dropping the legacy board files"

* tag 'armsoc-cleanups-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: dts: exynos: Add interrupt line to MAX8997 PMIC on exynos4210-trats
  ARM: dts: exynos: Fix regulator name to avoid forbidden character on exynos4210-trats
  ARM: dts: exynos: Add MFC memory banks for Peach boards
  ARM: OMAP2+: n900 needs MMC slot names for legacy user space
  ARM: OMAP2+: Add more functions to pwm pdata for ir-rx51
  ARM: debug: remove extraneous DEBUG_HI3716_UART option
  ARM: OMAP2+: Simplify auxdata by using the generic match
  of/platform: Allow secondary compatible match in of_dev_lookup
  ARM: davinci: use IRQCHIP_DECLARE for cp_intc
  ARM: davinci: remove unused DA8XX_NUM_UARTS
  ARM: davinci: simplify call to of populate
  ARM: DaVinci USB: removed deprecated properties from MUSB config
  ARM: rockchip: Fix use of plain integer as NULL pointer
  ARM: realview: hide unused 'pmu_device' object
  soc: versatile: dynamically detect RealView HBI numbers
2016-05-18 12:28:29 -07:00
Rafael J. Wysocki c47b3bd0d3 Merge branch 'pm-cpufreq'
* pm-cpufreq: (63 commits)
  intel_pstate: Clean up get_target_pstate_use_performance()
  intel_pstate: Use sample.core_avg_perf in get_avg_pstate()
  intel_pstate: Clarify average performance computation
  intel_pstate: Avoid unnecessary synchronize_sched() during initialization
  cpufreq: schedutil: Make default depend on CONFIG_SMP
  cpufreq: powernv: del_timer_sync when global and local pstate are equal
  cpufreq: powernv: Move smp_call_function_any() out of irq safe block
  intel_pstate: Clean up intel_pstate_get()
  cpufreq: schedutil: Make it depend on CONFIG_SMP
  cpufreq: governor: Fix handling of special cases in dbs_update()
  cpufreq: intel_pstate: Ignore _PPC processing under HWP
  cpufreq: arm_big_little: use generic OPP functions for {init, free}_opp_table
  cpufreq: tango: Use generic platdev driver
  cpufreq: Fix GOV_LIMITS handling for the userspace governor
  cpufreq: mvebu: Move cpufreq code into drivers/cpufreq/
  cpufreq: dt: Kill platform-data
  mvebu: Use dev_pm_opp_set_sharing_cpus() to mark OPP tables as shared
  cpufreq: dt: Identify cpu-sharing for platforms without operating-points-v2
  cpufreq: governor: Change confusing struct field and variable names
  cpufreq: intel_pstate: Enable PPC enforcement for servers
  ...
2016-05-16 14:30:43 +02:00
Dave Gerlach 65db875d11 ARM: OMAP2+: AM43XX: Enable fixes for Cortex-A9 errata
This patch explicitly enables the fixes for the below errata applicable
for AM43x Socs as was done for OMAP4.

754322: Faulty MMU translations following ASID switch

775420: A data cache maintenance operation which aborts,
        followed by an ISB, without any DSB in-between,
        might lead to deadlock

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-05-12 13:47:51 -07:00
Nishanth Menon c0053bd50a ARM: OMAP5 / DRA7: Introduce workaround for 801819
Add workaround for Cortex-A15 ARM erratum 801819 which says in summary
that "A livelock can occur in the L2 cache arbitration that might
prevent a snoop from completing. Under certain conditions this can
cause the system to deadlock. "

Recommended workaround is as follows:
Do both of the following:

1) Do not use the write-back no-allocate memory type.
2) Do not issue write-back cacheable stores at any time when the cache
is disabled (SCTLR.C=0) and the MMU is enabled (SCTLR.M=1). Because it
is implementation defined whether cacheable stores update the cache when
the cache is disabled it is not expected that any portable code will
execute cacheable stores when the cache is disabled.

For implementations of Cortex-A15 configured without the “L2 arbitration
register slice” option (typically one or two core systems), you must
also do the following:

3) Disable write-streaming in each CPU by setting ACTLR[28:25] = 0b1111

So, we provide an option to disable write streaming on OMAP5 and DRA7.
It is a rare condition to occur and may be enabled selectively based
on platform acceptance of risk.

Applies to: A15 revisions r2p0, r2p1, r2p2, r2p3 or r2p4 and REVIDR[3]
is set to 0.

Based on ARM errata Document revision 18.0 (22 Nov 2013)

Note: the configuration for the workaround needs to be done with
each CPU bringup, since CPU0 bringup is done by bootloader, it is
recommended to have the workaround in the bootloader, kernel also does
ensure that CPU0 has the workaround and makes the workaround active
when CPU1 gets active.

With CONFIG_SMP disabled, it is expected to be done by the bootloader.

This does show significant degradation in synthetic tests such as
mbw (https://packages.qa.debian.org/m/mbw.html)
mbw -n 100 100|grep AVG (on a test platform)
Without enabling the erratum:
AVG Method: MEMCPY  Elapsed: 0.13406  MiB: 100.00000  Copy: 745.913 MiB/s
AVG Method: DUMB    Elapsed: 0.06746  MiB: 100.00000  Copy: 1482.357 MiB/s
AVG Method: MCBLOCK Elapsed: 0.03058  MiB: 100.00000  Copy: 3270.569 MiB/s
After enabling the erratum:
AVG Method: MEMCPY  Elapsed: 0.13757  MiB: 100.00000  Copy: 726.913 MiB/s
AVG Method: DUMB    Elapsed: 0.12024  MiB: 100.00000  Copy: 831.668 MiB/s
AVG Method: MCBLOCK Elapsed: 0.09243  MiB: 100.00000  Copy: 1081.942 MiB/s

Most benchmarks are designed for specific performance analysis, so
overall usecase must be considered before making a decision to
enable/disable the erratum workaround.

Pending internal investigation, the erratum is kept disabled by default.

Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Tony Lindgren <tony@atomide.com>
Suggested-by: Richard Woodruff <r-woodruff2@ti.com>
Suggested-by: Brad Griffis <bgriffis@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-05-12 10:14:54 -07:00
Arnd Bergmann ff628a4dbd Device tree auxdata handling fix that allows a match based on the
compatible string if no exact match based on the IO address is found.
 
 This leaves out the need to patch auxdata for each driver when adding
 new SoCs. And it also reprotedly fixes the issue of passing auxdata
 to a child if the parent instantiates the child from DT as discussed
 in the "[PATCH] of/platform: Allow secondary compatible match in
 of_dev_lookup" mailing list thread.
 
 As a minimal use case, let's also convert omap pinctrl auxdatato
 use a generic match.
 
 There is no need to get this in to the v4.6-rc cycle and it can wait
 for v4.7 merge window. Note that these changes have now been sitting
 in Linux next for about two weeks so far as I wanted to make sure no
 new issues are popping up.
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Merge tag 'omap-for-v4.7/auxdata-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/fixes-non-critical

Merge "non urgent auxdata fix for v4.7 merge window" from Tony Lindgren:

Device tree auxdata handling fix that allows a match based on the
compatible string if no exact match based on the IO address is found.

This leaves out the need to patch auxdata for each driver when adding
new SoCs. And it also reprotedly fixes the issue of passing auxdata
to a child if the parent instantiates the child from DT as discussed
in the "[PATCH] of/platform: Allow secondary compatible match in
of_dev_lookup" mailing list thread.

As a minimal use case, let's also convert omap pinctrl auxdatato
use a generic match.

There is no need to get this in to the v4.6-rc cycle and it can wait
for v4.7 merge window. Note that these changes have now been sitting
in Linux next for about two weeks so far as I wanted to make sure no
new issues are popping up.

* tag 'omap-for-v4.7/auxdata-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Simplify auxdata by using the generic match
  of/platform: Allow secondary compatible match in of_dev_lookup
2016-05-09 16:42:14 +02:00
Paul E. McKenney 0b9a29add4 arm: Use _rcuidle tracepoint to allow use from idle
Testing on ARM encountered the following pair of lockdep-RCU splats:

------------------------------------------------------------------------

===============================
[ INFO: suspicious RCU usage. ]
4.6.0-rc4-next-20160422 #1 Not tainted
-------------------------------
include/trace/events/power.h:328 suspicious rcu_dereference_check() usage!

other info that might help us debug this:

RCU used illegally from idle CPU!
rcu_scheduler_active = 1, debug_locks = 0
RCU used illegally from extended quiescent state!
no locks held by swapper/0/0.

stack backtrace:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.6.0-rc4-next-20160422 #1
Hardware name: Generic OMAP3-GP (Flattened Device Tree)
[<c010f55c>] (unwind_backtrace) from [<c010b64c>] (show_stack+0x10/0x14)
[<c010b64c>] (show_stack) from [<c047acbc>] (dump_stack+0xa8/0xe0)
[<c047acbc>] (dump_stack) from [<c012bc10>] (pwrdm_set_next_pwrst+0xf8/0x1cc)
[<c012bc10>] (pwrdm_set_next_pwrst) from [<c01269fc>] (omap3_enter_idle_bm+0x1b8/0x1e8)
[<c01269fc>] (omap3_enter_idle_bm) from [<c05fa0b8>] (cpuidle_enter_state+0x84/0x408)
[<c05fa0b8>] (cpuidle_enter_state) from [<c0182c1c>] (cpu_startup_entry+0x1c8/0x3f0)
[<c0182c1c>] (cpu_startup_entry) from [<c0b00c20>] (start_kernel+0x354/0x3cc)

------------------------------------------------------------------------

[<c010f55c>] (unwind_backtrace) from [<c010b64c>] (show_stack+0x10/0x14)
[<c010b64c>] (show_stack) from [<c047ac3c>] (dump_stack+0xa8/0xe0)
[<c047ac3c>] (dump_stack) from [<c012c340>] (_pwrdm_state_switch+0x188/0x32c)
[<c012c340>] (_pwrdm_state_switch) from [<c012c4f0>] (_pwrdm_post_transition_cb+0xc/0x14)
[<c012c4f0>] (_pwrdm_post_transition_cb) from [<c012ba74>] (pwrdm_for_each+0x30/0x5c)
[<c012ba74>] (pwrdm_for_each) from [<c012c72c>] (pwrdm_post_transition+0x24/0x30)
[<c012c72c>] (pwrdm_post_transition) from [<c012548c>] (omap_sram_idle+0xfc/0x240)
[<c012548c>] (omap_sram_idle) from [<c0126934>] (omap3_enter_idle_bm+0xf0/0x1e8)
[<c0126934>] (omap3_enter_idle_bm) from [<c05fa038>] (cpuidle_enter_state+0x84/0x408)
[<c05fa038>] (cpuidle_enter_state) from [<c0182b90>] (cpu_startup_entry+0x1c8/0x3f0)
[<c0182b90>] (cpu_startup_entry) from [<c0b00c20>] (start_kernel+0x354/0x3cc)

------------------------------------------------------------------------

These are caused by event tracing from the idle loop, and they were
exposed by commit 293e2421fe ("rcu: Remove superfluous versions of
rcu_read_lock_sched_held()"), which suppressed some false negatives.
The current commit therefore adds the _rcuidle suffix to make RCU aware
of this implicit use of RCU by event tracing, thus preventing both splats.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Tony Lindgren <tony@atomide.com>
Cc: Russell King <linux@arm.linux.org.uk>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Cc: <linux-omap@vger.kernel.org>
Cc: <linux-arm-kernel@lists.infradead.org>
2016-04-29 13:29:02 -07:00
Tony Lindgren 10c1f7d32b ARM: OMAP2+: n900 needs MMC slot names for legacy user space
Let's pass the slot names in pdata like the legacy code does.
Once we have a generic DT binding for the slot names we can
switch to that.

Tested-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-04-28 14:26:33 -07:00
Tony Lindgren 8453c5cafd ARM: OMAP2+: Add more functions to pwm pdata for ir-rx51
Before we start removing omap3 legacy booting support, let's make n900
DT booting behave the same way for ir-rx51 as the legacy booting does.

For now, we need to pass pdata to the ir-rx51 driver. This means that
the n900 tree can move to using DT based booting without having to carry
all the legacy platform data with it when it gets dropped from the mainline
tree.

Note that the ir-rx51 driver is currently disabled because of the
dependency to !ARCH_MULTIPLATFORM. This will get sorted out later
with the help of drivers/pwm/pwm-omap-dmtimer.c. But first we need
to add chained IRQ support to dmtimer code to avoid introducing new
custom frameworks.

So let's just pass the necessary dmtimer functions to ir-rx51 so we
can get it working in the following patch.

Cc: Neil Armstrong <narmstrong@baylibre.com>
Tested-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-04-28 14:26:32 -07:00
Rafael J. Wysocki 29c5e7b2bc Merge back earlier cpufreq material for v4.7. 2016-04-28 15:19:31 +02:00
Viresh Kumar 7694ca6e1d cpufreq: omap: Use generic platdev driver
The cpufreq-dt-platdev driver supports creation of cpufreq-dt platform
device now, reuse that and remove similar code from platform code.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-04-25 16:18:23 +02:00
Kevin Hilman 22c49e5a09 Fixes for omaps for v4.6-rc cycle:
- Clockdomain fix for dra7 timer interrupts
 
 - Two fixes for GPMC EDMA binding, I missed the need for a merge with
   GPMC changes and EDMA changes
 
 - Fix beagle-x15 eSATA by dropping misconfigured extcon_usb1
 
 - Fix occasional external aborts on 36xx with PM that we've been
   chasing for past few months. It turned out to be duplicate restore
   of INTC registers that can in some cases cause us to hit erratum 1.106.
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Merge tag 'omap-for-v4.6/fixes-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Merge "omap fixes for v4.6-rc cycle" from Tony Lindgren:

Fixes for omaps for v4.6-rc cycle:

- Clockdomain fix for dra7 timer interrupts

- Two fixes for GPMC EDMA binding, I missed the need for a merge with
  GPMC changes and EDMA changes

- Fix beagle-x15 eSATA by dropping misconfigured extcon_usb1

- Fix occasional external aborts on 36xx with PM that we've been
  chasing for past few months. It turned out to be duplicate restore
  of INTC registers that can in some cases cause us to hit erratum 1.106.

* tag 'omap-for-v4.6/fixes-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP3: Fix external abort on 36xx waking from off mode idle
  ARM: dts: am57xx-beagle-x15: remove extcon_usb1
  ARM: dts: am437x: Fix GPMC dma properties
  ARM: dts: am33xx: Fix GPMC dma properties
  ARM: DRA7: clockdomain: Implement timer workaround for errata i874
2016-04-22 16:53:49 -07:00
Tony Lindgren 22292b91ee ARM: OMAP2+: first set of hwmod changes for v4.7
For the DRA7xx platform, add IP block data for the McASP, PWMSS,
 and GPTimer12 IP blocks.  Add lock and unlock functions for the
 RTC IP blocks on the DRA7xx, AM33xx, and AM43xx devices.  And add
 a fix for the hwmod core for device driver unbind operations for
 IP blocks with hardreset lines.
 
 Basic build, boot, and PM test results are available here:
 
 http://www.pwsan.com/omap/testlogs/omap-hwmod-a-for-v4.7/20160410132119/
 
 Note that the testbed here does not have the DRA7xx board included yet.
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Merge tag 'for-v4.7/omap-hwmod-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v4.7/soc

ARM: OMAP2+: first set of hwmod changes for v4.7

For the DRA7xx platform, add IP block data for the McASP, PWMSS,
and GPTimer12 IP blocks.  Add lock and unlock functions for the
RTC IP blocks on the DRA7xx, AM33xx, and AM43xx devices.  And add
a fix for the hwmod core for device driver unbind operations for
IP blocks with hardreset lines.

Basic build, boot, and PM test results are available here:

http://www.pwsan.com/omap/testlogs/omap-hwmod-a-for-v4.7/20160410132119/

Note that the testbed here does not have the DRA7xx board included yet.
2016-04-22 15:15:33 -07:00
Kevin Hilman c0e309138b Fixes for omaps against v4.6-rc2, mostly to fix suspend for beagle-x15
that broke when we added runtime based SoC revision detection earlier.
 
 It seems suspend worked earlier as things were only partially initialized,
 while now we initialize things properly for dra7.
 
 Note that the "ARM: OMAP: Catch callers of revision information prior
 to it being populated" had to be reverted as it caused bogus warnings
 for other SoCs because omap initcalls bail out based on revision being
 set to 0 for other SoCs. These initcalls will mostly just disappear
 when we drop support for omap3 legacy booting.
 
 Also included is a fix for dra7 sys_32k_ck clock source that is not
 enabled on boot making system fall back to using emulated clock.
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Merge tag 'omap-for-v4.6/fixes-rc2-v2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Merge "omap fixes against v4.6-rc2" from Tony Lindgren

Fixes for omaps against v4.6-rc2, mostly to fix suspend for beagle-x15
that broke when we added runtime based SoC revision detection earlier.

It seems suspend worked earlier as things were only partially initialized,
while now we initialize things properly for dra7.

Note that the "ARM: OMAP: Catch callers of revision information prior
to it being populated" had to be reverted as it caused bogus warnings
for other SoCs because omap initcalls bail out based on revision being
set to 0 for other SoCs. These initcalls will mostly just disappear
when we drop support for omap3 legacy booting.

Also included is a fix for dra7 sys_32k_ck clock source that is not
enabled on boot making system fall back to using emulated clock.

* tag 'omap-for-v4.6/fixes-rc2-v2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (198 commits)
  Revert "ARM: OMAP: Catch callers of revision information prior to it being populated"
  ARM: OMAP: Catch callers of revision information prior to it being populated
  ARM: dts: dra7: Correct clock tree for sys_32k_ck
  ARM: OMAP: DRA7: Provide proper class to omap2_set_globals_tap
  ARM: OMAP: DRA7: wakeupgen: Skip SAR save for wakeupgen
  Linux 4.6-rc2
  v4l2-mc: avoid warning about unused variable
  Convert straggling drivers to new six-argument get_user_pages()
  .mailmap: add Christophe Ricard
  Make CONFIG_FHANDLE default y
  mm/page_isolation.c: fix the function comments
  oom, oom_reaper: do not enqueue task if it is on the oom_reaper_list head
  mm/page_isolation: fix tracepoint to mirror check function behavior
  mm/rmap: batched invalidations should use existing api
  x86/mm: TLB_REMOTE_SEND_IPI should count pages
  mm: fix invalid node in alloc_migrate_target()
  include/linux/huge_mm.h: return NULL instead of false for pmd_trans_huge_lock()
  mm, kasan: fix compilation for CONFIG_SLAB
  MAINTAINERS: orangefs mailing list is subscribers-only
  net: mvneta: fix changing MTU when using per-cpu processing
  ...
2016-04-22 09:45:53 -07:00
Tony Lindgren 3d51ae172d Revert "ARM: OMAP: Catch callers of revision information prior to it being populated"
This reverts commit 571afb4c8a.
2016-04-19 08:01:05 -07:00
Tony Lindgren d4f414e559 ARM: OMAP2+: Simplify auxdata by using the generic match
We can now just use the compatible if there's no need to have
device instance specific auxdata.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-04-15 08:47:07 -07:00
Roger Quadros c9711ec525 mtd: nand: omap: Clean up device tree support
Move NAND specific device tree parsing to NAND driver.

The NAND controller node must have a compatible id, register space
resource and interrupt resource.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2016-04-15 11:53:36 +03:00
Roger Quadros c509aefd75 mtd: nand: omap: Use gpmc_omap_get_nand_ops() to get NAND registers
Deprecate nand register passing via platform data and use
gpmc_omap_get_nand_ops() instead.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2016-04-15 11:53:02 +03:00
Dave Gerlach 1560d15861 ARM: OMAP3: Fix external abort on 36xx waking from off mode idle
Depending on timing during the resume path from off mode on 36xx, we may
see external aborts. These seem to be caused by the following:

- OMAP3 Advisory 1.62 "MPU Cannot Exit from Standby" says we need to
  disable intc autoidle before WFI

- DM3730 Advisory 1.106 "MPU Leaves MSTANDBY State Before IDLEREQ of
  Interrupt Controller is Released" says we need to wait before
  accessing intc

omap3_intc_resume_idle restores the intc autoidle for all resume paths,
however in the resume path from off mode only it is also being restored
by omap_intc_restore_context before this call to omap3_intc_resume_idle
happens. The second restore of the intc autoidle in this path is what
appears to be causing the external abort so for the off mode resume path
let's rely on omap_intc_restore_context to restore intc autoidle, and
for all other paths let omap3_intc_resume_idle handle it as it is now.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-04-14 08:27:30 -07:00
Anna-Maria Gleixner 814a9586fd ARM: OMAP2+: wakeupgen: Add comment for unhandled FROZEN transitions
FROZEN hotplug notifiers are not handled and do not have to be. Insert
a comment to remember that the lack of the FROZEN transitions is no
accident.

Cc: Tony Lindgren <tony@atomide.com>
Cc: Santosh Shilimkar <ssantosh@kernel.org>
Cc: linux-omap@vger.kernel.org
Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-04-13 14:31:43 -07:00
Nishanth Menon dac4fba2cd ARM: OMAP: DRA7: powerdomain data: Remove wrong OSWR capability
Open Switch Retention(OSWR) is a retention state which is unsupported
in DRA7 SoC. This state is achieved when power state is set to
retention and logic power state is set to OFF.

Even though DRA7 architecture is a OMAP derivative, none of the
powerdomains are actually implemented to achieve OSWR in the SoC.

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-04-13 14:30:10 -07:00
Nishanth Menon 41feb8efd6 ARM: OMAP: DRA7: powerdomain data: Fix "ON" state for memories
When the power domain is in "ON" state, the memories should be always
in "ON", even though the hardware register allows other states to be
written, wrong states may confuse certain hardware blocks.

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-04-13 14:30:09 -07:00
Nishanth Menon f971512c78 ARM: OMAP: DRA7: powerdomain data: Erratum i892 workaround: Disable core INA
Erratum i892 as will be documented in the upcoming G or later revision
of DRA7xx/ AM57xx errata documentation (SPRZ398F) states that L3 clock
needs to be kept active all the time to ensure that asymmetric aging
degradation is minimal and within the design allowed margin.

By allowing core domain to transition to INA and allowing L3 clock to be
turned off for extended periods of time, there is a risk of functional
issues and device failure as a result.

Ref: http://www.ti.com/lit/er/sprz429h/sprz429h.pdf

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-04-13 14:30:09 -07:00
Jonas Rabenstein e60ba933bc ARM: OMAP2+: remove redundant multiplatform checks
The directory arch/arm/mach-omap2 is only selected for compilation if
CONFIG_ARCH_OMAP2PLUS is selected. CONFIG_ARCH_OMAP2PLUS itself is a
silent option and all machines selecting this option are multiplatform
devices. As a consequence checks for CONFIG_ARCH_MULTIPLATFORM as well
as CONFIG_ARCH_OMAP2PLUS within that directory are superfluous and can
be removed.

Signed-off-by: Jonas Rabenstein <jonas.rabenstein@studium.uni-erlangen.de>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-04-13 13:22:52 -07:00
Tony Lindgren e2567075be ARM: OMAP2+: clockdomain: another fix for v4.6-rc
For DRA7xx platforms, add a workaround for missed timer interrupts
 that appears to be due to an integration bug (erratum i874)
 
 Basic build, boot, and PM test logs are available here:
 
 http://www.pwsan.com/omap/testlogs/omap-fixes-b-for-v4.6-rc/20160413020850/
 
 (The DRA7xx board here has not yet been added into the testbed.)
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Merge tag 'for-v4.6-rc/omap-fixes-b' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v4.6/fixes

ARM: OMAP2+: clockdomain: another fix for v4.6-rc

For DRA7xx platforms, add a workaround for missed timer interrupts
that appears to be due to an integration bug (erratum i874)

Basic build, boot, and PM test logs are available here:

http://www.pwsan.com/omap/testlogs/omap-fixes-b-for-v4.6-rc/20160413020850/

(The DRA7xx board here has not yet been added into the testbed.)
2016-04-13 12:31:47 -07:00
Suman Anna c20c8f750d ARM: OMAP2+: hwmod: fix _idle() hwmod state sanity check sequence
The omap_hwmod _enable() function can return success without setting
the hwmod state to _HWMOD_STATE_ENABLED for IPs with reset lines when
all of the reset lines are asserted. The omap_hwmod _idle() function
also performs a similar check, but after checking for the hwmod state
first. This triggers the WARN when pm_runtime_get and pm_runtime_put
are invoked on IPs with all reset lines asserted. Reverse the checks
for hwmod state and reset lines status to fix this.

Issue found during a unbind operation on a device with reset lines
still asserted, example backtrace below

 ------------[ cut here ]------------
 WARNING: CPU: 1 PID: 879 at arch/arm/mach-omap2/omap_hwmod.c:2207 _idle+0x1e4/0x240()
 omap_hwmod: mmu_dsp: idle state can only be entered from enabled state
 Modules linked in:
 CPU: 1 PID: 879 Comm: sh Not tainted 4.4.0-00008-ga989d951331a #3
 Hardware name: Generic OMAP5 (Flattened Device Tree)
 [<c0018e60>] (unwind_backtrace) from [<c0014dc4>] (show_stack+0x10/0x14)
 [<c0014dc4>] (show_stack) from [<c037ac28>] (dump_stack+0x90/0xc0)
 [<c037ac28>] (dump_stack) from [<c003f420>] (warn_slowpath_common+0x78/0xb4)
 [<c003f420>] (warn_slowpath_common) from [<c003f48c>] (warn_slowpath_fmt+0x30/0x40)
 [<c003f48c>] (warn_slowpath_fmt) from [<c0028c20>] (_idle+0x1e4/0x240)
 [<c0028c20>] (_idle) from [<c0029080>] (omap_hwmod_idle+0x28/0x48)
 [<c0029080>] (omap_hwmod_idle) from [<c002a5a4>] (omap_device_idle+0x3c/0x90)
 [<c002a5a4>] (omap_device_idle) from [<c0427a90>] (__rpm_callback+0x2c/0x60)
 [<c0427a90>] (__rpm_callback) from [<c0427ae4>] (rpm_callback+0x20/0x80)
 [<c0427ae4>] (rpm_callback) from [<c0427f84>] (rpm_suspend+0x138/0x74c)
 [<c0427f84>] (rpm_suspend) from [<c0428b78>] (__pm_runtime_idle+0x78/0xa8)
 [<c0428b78>] (__pm_runtime_idle) from [<c041f514>] (__device_release_driver+0x64/0x100)
 [<c041f514>] (__device_release_driver) from [<c041f5d0>] (device_release_driver+0x20/0x2c)
 [<c041f5d0>] (device_release_driver) from [<c041d85c>] (unbind_store+0x78/0xf8)
 [<c041d85c>] (unbind_store) from [<c0206df8>] (kernfs_fop_write+0xc0/0x1c4)
 [<c0206df8>] (kernfs_fop_write) from [<c018a120>] (__vfs_write+0x20/0xdc)
 [<c018a120>] (__vfs_write) from [<c018a9cc>] (vfs_write+0x90/0x164)
 [<c018a9cc>] (vfs_write) from [<c018b1f0>] (SyS_write+0x44/0x9c)
 [<c018b1f0>] (SyS_write) from [<c0010420>] (ret_fast_syscall+0x0/0x1c)
 ---[ end trace a4182013c75a9f50 ]---

While at this, fix the sequence in _shutdown() as well, though there
is no easy reproducible scenario.

Fixes: 747834ab83 ("ARM: OMAP2+: hwmod: revise hardreset behavior")
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2016-04-10 13:20:11 -06:00
Suman Anna 22d20cb487 ARM: DRA7: hwmod: Add data for GPTimer 12
Add the hwmod data for GPTimer 12. GPTimer 12 is present in
WKUPAON power domain and is clocked from a secure 32K clock.
GPTimer 12 serves as a secure timer on HS devices, but is
available for kernel on regular GP devices.

The hwmod link is registered only on GP devices. The hwmod data
also reused the existing timer class instead of reintroducing
the identical dra7xx_timer_secure_sysc class which was dropped
in commit edec178633 ("ARM: DRA7: hwmod: Fix the hwmod class
for GPTimer4").

Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2016-04-10 13:20:11 -06:00
Lokesh Vutla b5a553c08b ARM: AMx3xx: RTC: Add lock and unlock functions
Hook omap_hwmod_rtc_unlock/lock functions into RTC hwmod,
so that SYSCONFIG register is updated properly.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2016-04-10 13:20:10 -06:00
Lokesh Vutla d7d31b8970 ARM: DRA7: RTC: Add lock and unlock functions
Hook omap_hwmod_rtc_unlock/lock functions into RTC hwmod,
so that SYSCONFIG register is updated properly

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2016-04-10 13:20:10 -06:00
Lokesh Vutla 461932dfb5 ARM: OMAP2+: hwmod: RTC: Add lock and unlock functions
RTC IP have kicker feature which prevents spurious writes to its registers.
In order to write into any of the RTC registers, KICK values has to be
written to KICK registers. Also, RTC busy flag needs to be polled for
non-TC registers as well, without which update is not proper and confirmed
it by testing on DRA7-evm.
Introduce omap_hwmod_rtc_unlock/lock functions, which  writes into these
KICK registers inorder to lock and unlock RTC registers.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
[paul@pwsan.com: fixed subject line]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2016-04-10 13:20:10 -06:00
Vignesh R b05ff3c394 ARM: OMAP2+: DRA7: Add hwmod entries for PWMSS
Add hwmod entries for the PWMSS on DRA7.

Set l4_root_clk_div as the main_clk of PWMSS. It is fixed-factored clock
equal to L4PER2_L3_GICLK/2(l3_iclk_div/2).

Signed-off-by: Vignesh R <vigneshr@ti.com>
[fcooper@ti.com: Do not add eQEP, ePWM and eCAP hwmod entries]
Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
[paul@pwsan.com: fixed sparse warnings; added missing comments]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2016-04-10 13:20:09 -06:00
Peter Ujfalusi 9ad4d9a38a ARM: DRA7: hwmod: Add data for McASP1/2/4/5/6/7/8
Add missing data for all McASP ports for the dra7 family

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2016-04-10 13:20:09 -06:00
Keerthy 1cbabcb980 ARM: DRA7: clockdomain: Implement timer workaround for errata i874
Errata Title:
i874: TIMER5/6/7/8 interrupts not propagated

Description:
When TIMER5, TIMER6, TIMER7, or TIMER8 clocks are enabled
(CM_IPU_TIMER5/6/7/8_CLKCTRL[0:1]MODULEMODE=0x2:ENABLE) and the CD-IPU
is in HW_AUTO mode (CM_IPU_CLKSTCTRL[0:1]CLKTRCTRL=0x3:HW_AUTO) the
corresponding TIMER will continue counting, but enabled interrupts
will not be propagated to the destinations (MPU, DSP, etc) in the
SoC until the TIMER registers are accessed from the CPUs (MPU, DSP
etc.). This can result in missed timer interrupts.

Workaround:
In order for TIMER5/6/7/8 interrupts to be propagated and serviced
correctly the CD_IPU domain should be set to SW_WKUP mode
(CM_IPU_CLKSTCTRL[0:1]CLKTRCTRL=0x2:SW_WKUP).

The above workaround is achieved by switching the IPU clockdomain
flags from HWSUP_SWSUP to SWSUP only.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2016-04-10 11:43:57 -06:00
Tony Lindgren 19e831b272 Merge branch 'fixes-rc2' into omap-for-v4.6/fixes 2016-04-08 09:18:00 -07:00
Nishanth Menon 571afb4c8a ARM: OMAP: Catch callers of revision information prior to it being populated
omap_rev is used to detect various SoC types, however any misuse of
the usage by invoking it earlier than it being populated will result
in invalid results. Lets flag them as early as possible to prevent
unintended side effects taking place. We get 0 if it is uninitialized
and -1 when detection is done using device tree (as the case was for
DRA7 as the case was prior to commit 06c2d368fc ("ARM: OMAP: DRA7:
Make use of omap_revision information for soc_is* calls")

Signed-off-by: Nishanth Menon <nm@ti.com>
Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-04-08 09:02:39 -07:00
Nishanth Menon ec490f6f60 ARM: OMAP: DRA7: Provide proper class to omap2_set_globals_tap
When commit 06c2d368fc ("ARM: OMAP: DRA7: Make use of omap_revision
information for soc_is* calls") introduced SoC check using
omap_revision, it missed providing DRA7 as class for initializing
the omap_version variable. Without doing this, soc_is_dra7xx() will
fail and as a result, omap4_pm_init_early never initializes the dra7
erratum for CPU power state. This causes the suspend path to fail
on DRA7 devices.

Fixes: 06c2d368fc ("ARM: OMAP: DRA7: Make use of omap_revision information for soc_is* calls")
Signed-off-by: Nishanth Menon <nm@ti.com>
Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-04-08 08:54:44 -07:00
Nishanth Menon c783e6fd7f ARM: OMAP: DRA7: wakeupgen: Skip SAR save for wakeupgen
DRA7 has no SAR region for automated save and restore of wakeupgen,
which does not make real since the SoC really does not do legacy OFF
mode anymore. Further wakeupgen should never loose context in CSWR
retention mode for MPU domain on DRA7 since that is the deepest state
we will enter.

So, just skip, instead of oopsing as follows while attemptint to enter
suspend on BeagleBoard-X15.
[   55.589771] Unable to handle kernel paging request at virtual address 00002684
[   55.589771] pgd = ec69c000
[...]
[   55.589771] [<c0123cc8>] (irq_notifier) from [<c015ad70>] (notifier_call_chain+0x4c/0x8c)
[   55.589771] [<c015ad70>] (notifier_call_chain) from [<c021469c>] (cpu_cluster_pm_enter+0x2c/0x78)
[   55.589771] [<c021469c>] (cpu_cluster_pm_enter) from [<c0514508>] (syscore_suspend+0xb8/0x31c)
[   55.589771] [<c0514508>] (syscore_suspend) from [<c0197d24>] (suspend_devices_and_enter+0x308/0x9e4)
[   55.589771] [<c0197d24>] (suspend_devices_and_enter) from [<c0198a40>] (pm_suspend+0x640/0x75c)
[   55.589771] [<c0198a40>] (pm_suspend) from [<c0196bcc>] (state_store+0x64/0xb8)
[   55.589771] [<c0196bcc>] (state_store) from [<c0307914>] (kernfs_fop_write+0xc0/0x1bc)
[   55.589771] [<c0307914>] (kernfs_fop_write) from [<c028ac80>] (__vfs_write+0x1c/0xd8)
[   55.589771] [<c028ac80>] (__vfs_write) from [<c028bb70>] (vfs_write+0x90/0x16c)
[   55.589771] [<c028bb70>] (vfs_write) from [<c028c890>] (SyS_write+0x44/0x9c)
[   55.589771] [<c028c890>] (SyS_write) from [<c0107840>] (ret_fast_syscall+0x0/0x1c)
[...]

Signed-off-by: Nishanth Menon <nm@ti.com>
Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-04-08 08:54:24 -07:00
Vishal Mahaveer 6b532c4a66 ARM: DRA722: Add ID detect for Silicon Rev 2.0
Silicon Rev 2.0 is a minor variant of Rev 1.0. Rev 2.0 is an incremental revision
with various fixes including the following:
    - Reset logic fixes
    - Few asymmetric aging logic fixes
    - Ethernet speed fixes
    - EDMA fixes for McASP

Signed-off-by: Vishal Mahaveer <vishalm@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-03-30 14:33:22 -07:00
Nishanth Menon 456e8d5348 ARM: OMAP2: Fix up interconnect barrier initialization for DRA7
The following commits:
commit 3fa609755c ("ARM: omap2: restore OMAP4 barrier behaviour")
commit f746929ffd ("Revert "ARM: OMAP4: remove dead kconfig option OMAP4_ERRATA_I688"")
and
commit ea827ad5ff ("ARM: DRA7: Provide proper IO map table")
came in around the same time, unfortunately this seem to have missed
initializing the barrier for DRA7 platforms - omap5_map_io was reused
for dra7 till it was split out by the last patch. barrier_init
needs to be hence carried forward as it is valid for DRA7 family of
processors as they are for OMAP5.

Fixes: ea827ad5ff ("ARM: DRA7: Provide proper IO map table")
Cc: stable@vger.kernel.org # v4.1+
Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reported-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-03-30 14:14:20 -07:00
Tony Lindgren 1809de7e7d ARM: OMAP2+: first hwmod fix for v4.6-rc
Fix a longstanding bug in the hwmod code that could cause
 hardware SYSCONFIG register values to not match the kernel's
 idea of what they should be, and that could result in lower
 performance during IP block idle entry.
 
 Basic build, boot, and PM test logs are available here:
 
 http://www.pwsan.com/omap/testlogs/omap-hwmod-fixes-a-for-v4.6-rc/20160326231727/
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Merge tag 'for-v4.6-rc/omap-fixes-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v4.6/fixes

ARM: OMAP2+: first hwmod fix for v4.6-rc

Fix a longstanding bug in the hwmod code that could cause
hardware SYSCONFIG register values to not match the kernel's
idea of what they should be, and that could result in lower
performance during IP block idle entry.

Basic build, boot, and PM test logs are available here:

http://www.pwsan.com/omap/testlogs/omap-hwmod-fixes-a-for-v4.6-rc/20160326231727/
2016-03-30 10:36:06 -07:00
Lokesh Vutla 3ca4a23810 ARM: OMAP2+: hwmod: Fix updating of sysconfig register
Commit 127500ccb7 ("ARM: OMAP2+: Only write the sysconfig on idle
when necessary") talks about verification of sysconfig cache value before
updating it, only during idle path. But the patch is adding the
verification in the enable path. So, adding the check in a proper place
as per the commit description.

Not keeping this check during enable path as there is a chance of losing
context and it is safe to do on idle as the context of the register will
never be lost while the device is active.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Cc: Jon Hunter <jonathanh@nvidia.com>
Cc: <stable@vger.kernel.org> # 3.12+
Fixes: commit 127500ccb7 "ARM: OMAP2+: Only write the sysconfig on idle when necessary"
[paul@pwsan.com: appears to have been caused by my own mismerge of the
 originally posted patch]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2016-03-26 23:08:55 -06:00
Linus Torvalds 33b3d2e88c ARM: SoC platform updates for v4.6
Newly added support for additional SoCs:
 
 - Axis Artpec-6 SoC family
 - Allwinner A83T SoC
 - Mediatek MT7623
 - NXP i.MX6QP SoC
 - ST Microelectronics stm32f469 microcontroller
 
 New features:
 - SMP support for Mediatek mt2701
 - Big-endian support for NXP i.MX
 - DaVinci now uses the new DMA engine dma_slave_map
 - OMAP now uses the new DMA engine dma_slave_map
 - earlyprintk support for palmchip uart on mach-tango
 - delay timer support for orion
 
 Other:
 - Exynos PMU driver moved out to drivers/soc/
 - Various smaller updates for Renesas, Xilinx, PXA, AT91, OMAP, uniphier
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates from Arnd Bergmann:
 "Newly added support for additional SoCs:
   - Axis Artpec-6 SoC family
   - Allwinner A83T SoC
   - Mediatek MT7623
   - NXP i.MX6QP SoC
   - ST Microelectronics stm32f469 microcontroller

  New features:
   - SMP support for Mediatek mt2701
   - Big-endian support for NXP i.MX
   - DaVinci now uses the new DMA engine dma_slave_map
   - OMAP now uses the new DMA engine dma_slave_map
   - earlyprintk support for palmchip uart on mach-tango
   - delay timer support for orion

  Other:
   - Exynos PMU driver moved out to drivers/soc/
   - Various smaller updates for Renesas, Xilinx, PXA, AT91, OMAP,
     uniphier"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (83 commits)
  ARM: uniphier: rework SMP code to support new System Bus binding
  ARM: uniphier: add missing of_node_put()
  ARM: at91: avoid defining CONFIG_* symbols in source code
  ARM: DRA7: hwmod: Add data for eDMA tpcc, tptc0, tptc1
  ARM: imx: Make reset_control_ops const
  ARM: imx: Do L2 errata only if the L2 cache isn't enabled
  ARM: imx: select ARM_CPU_SUSPEND only for imx6
  dmaengine: pxa_dma: fix the maximum requestor line
  ARM: alpine: select the Alpine MSI controller driver
  ARM: pxa: add the number of DMA requestor lines
  dmaengine: mmp-pdma: add number of requestors
  dma: mmp_pdma: Add the #dma-requests DT property documentation
  ARM: OMAP2+: Add rtc hwmod configuration for ti81xx
  ARM: s3c24xx: Avoid warning for inb/outb
  ARM: zynq: Move early printk virtual address to vmalloc area
  ARM: DRA7: hwmod: Add custom reset handler for PCIeSS
  ARM: SAMSUNG: Remove unused register offset definition
  ARM: EXYNOS: Cleanup header files inclusion
  drivers: soc: samsung: Enable COMPILE_TEST
  MAINTAINERS: Add maintainers entry for drivers/soc/samsung
  ...
2016-03-20 14:57:08 -07:00
Linus Torvalds e88fa1b8b0 ARM: SoC cleanups for v4.6
A few simple cleanups across multiple platforms, not much standing out:
 
 - lpc32xx removes its private implementation of the clk API, after
   generic code was merged in 4.5
 - all unused Makefile.boot files get removed
 - a number of simplifications for shmobile
 - asm/clkdev.h gets replaced with the asm-generic version after
   all mach/clkdev.h implementations are gone
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Merge tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanups from Arnd Bergmann:
 "A few simple cleanups across multiple platforms, not much standing
  out:

   - lpc32xx removes its private implementation of the clk API, after
     generic code was merged in 4.5
   - all unused Makefile.boot files get removed
   - a number of simplifications for shmobile
   - asm/clkdev.h gets replaced with the asm-generic version after all
     mach/clkdev.h implementations are gone"

* tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: shmobile: Kconfig: Get rid of old comment
  ARM: shmobile: Consolidate SCU mapping code
  arm: lpc32xx: remove direct control of GPIOs from shared mach file
  arm: lpc32xx: remove selected HAVE_IDE
  arm: lpc32xx: switch to common clock framework
  ARM: Use generic clkdev.h header
  ARM: plat-versatile: Remove unused clock.c file
  ARM: netx: remove redundant "depends on ARCH_NETX"
  ARM: integrator: remove redundant select in Kconfig
  ARM: drop unused Makefile.boot of Multiplatform SoCs
  ARM: mvebu: add missing of_node_put()
  ARM: shmobile: r8a7779: Remove remainings of removed SCU boot setup code
  ARM: shmobile: Typo s/MIPDR/MPIDR/
  ARM: shmobile: Add includes providing forward declarations
  ARM: shmobile: rcar-gen2: Make rcar_gen2_dma_contiguous static
  ARM: mv78xx0: use "depends on" instead of "if" after prompt
2016-03-20 14:37:22 -07:00
Linus Torvalds dae0b74eb7 ARM: SoC non-urgent fixes for v4.6
As usual, we queue up a few fixes that don't seem urgent enough to go in
 through -rc.
 
  - a number of randconfig warning fixes from Arnd
  - various small fixes for OMAP
  - one somewhat larger patch to restore the OMAP3 cpuidle
    tuning that was lost in a cleanup
  - a small regression fix for cns3xxx PCI
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Merge tag 'armsoc-fixes-nc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC non-urgent fixes from Arnd Bergmann:
 "As usual, we queue up a few fixes that don't seem urgent enough to go
  in through -rc.

   - a number of randconfig warning fixes from Arnd
   - various small fixes for OMAP
   - one somewhat larger patch to restore the OMAP3 cpuidle tuning that
     was lost in a cleanup
   - a small regression fix for cns3xxx PCI"

* tag 'armsoc-fixes-nc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (26 commits)
  CNS3xxx: Fix PCI cns3xxx_write_config()
  MAINTAINERS: unify email addrs for Kevin Hilman
  CNS3xxx: remove unused *_VIRT definitions
  ARM: OMAP2+: Fix hwmod clock for l4_ls
  soc: TI knav_qmss: fix dma_addr_t printing
  ARM: prima2: always enable reset controller
  ARM: socfpga: hide unused functions
  ARM: ux500: fix ureachable iounmap()
  ARM: ks8695: fix __initdata annotation
  ARM: mvebu: mark mvebu_hwcc_pci_nb as __maybe_unused
  ARM: mv78xx0: avoid unused function warning
  ARM: orion: only select I2C_BOARDINFO when using I2C
  ARM: OMAP2+: Fix out of range register access with syscon_config.max_register
  ARM: OMAP3: Add cpuidle parameters table for omap3430
  ARM: davinci: make I2C support optional
  ARM: davinci: DA8xx+DMx combined kernels need PATCH_PHYS_VIRT
  ARM: davinci: avoid unused mityomapl138_pn_info variable
  ARM: davinci: limit DT support to DA850
  ARM: DRA7: hwmod: Add reset data for PCIe
  ARM: DRA7: hwmod: Fix OCP2SCP sysconfig
  ...
2016-03-20 14:26:57 -07:00
Linus Torvalds 96b9b1c956 TTY/Serial patches for 4.6-rc1
Here's the big tty/serial driver pull request for 4.6-rc1.
 
 Lots of changes in here, Peter has been on a tear again, with lots of
 refactoring and bugs fixes, many thanks to the great work he has been
 doing.  Lots of driver updates and fixes as well, full details in the
 shortlog.
 
 All have been in linux-next for a while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial updates from Greg KH:
 "Here's the big tty/serial driver pull request for 4.6-rc1.

  Lots of changes in here, Peter has been on a tear again, with lots of
  refactoring and bugs fixes, many thanks to the great work he has been
  doing.  Lots of driver updates and fixes as well, full details in the
  shortlog.

  All have been in linux-next for a while with no reported issues"

* tag 'tty-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (220 commits)
  serial: 8250: describe CONFIG_SERIAL_8250_RSA
  serial: samsung: optimize UART rx fifo access routine
  serial: pl011: add mark/space parity support
  serial: sa1100: make sa1100_register_uart_fns a function
  tty: serial: 8250: add MOXA Smartio MUE boards support
  serial: 8250: convert drivers to use up_to_u8250p()
  serial: 8250/mediatek: fix building with SERIAL_8250=m
  serial: 8250/ingenic: fix building with SERIAL_8250=m
  serial: 8250/uniphier: fix modular build
  Revert "drivers/tty/serial: make 8250/8250_ingenic.c explicitly non-modular"
  Revert "drivers/tty/serial: make 8250/8250_mtk.c explicitly non-modular"
  serial: mvebu-uart: initial support for Armada-3700 serial port
  serial: mctrl_gpio: Add missing module license
  serial: ifx6x60: avoid uninitialized variable use
  tty/serial: at91: fix bad offset for UART timeout register
  tty/serial: at91: restore dynamic driver binding
  serial: 8250: Add hardware dependency to RT288X option
  TTY, devpts: document pty count limiting
  tty: goldfish: support platform_device with id -1
  drivers: tty: goldfish: Add device tree bindings
  ...
2016-03-17 13:53:25 -07:00
Olof Johansson 1dea581f86 ARM: OMAP2+: critical DRA7xx fix for v4.5-rc
Force the DRA7xx Ethernet internal clock source to stay enabled
 per TI erratum i877:
 
 http://www.ti.com/lit/er/sprz429h/sprz429h.pdf
 
 Otherwise, if the Ethernet internal clock source is disabled, the
 chip will age prematurely, and the RGMII I/O timing will soon
 fail to meet the delay time and skew specifications for 1000Mbps
 Ethernet.
 
 This fix should go in as soon as possible.
 
 Basic build, boot, and PM test results are available here:
 
 http://www.pwsan.com/omap/testlogs/omap-critical-fixes-for-v4.5-rc/20160307014209/
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Merge tag 'for-v4.5-rc/omap-critical-fixes-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into fixes

ARM: OMAP2+: critical DRA7xx fix for v4.5-rc

Force the DRA7xx Ethernet internal clock source to stay enabled
per TI erratum i877:

http://www.ti.com/lit/er/sprz429h/sprz429h.pdf

Otherwise, if the Ethernet internal clock source is disabled, the
chip will age prematurely, and the RGMII I/O timing will soon
fail to meet the delay time and skew specifications for 1000Mbps
Ethernet.

This fix should go in as soon as possible.

Basic build, boot, and PM test results are available here:

http://www.pwsan.com/omap/testlogs/omap-critical-fixes-for-v4.5-rc/20160307014209/

* tag 'for-v4.5-rc/omap-critical-fixes-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending:
  ARM: dts: dra7: do not gate cpsw clock due to errata i877
  ARM: OMAP2+: hwmod: Introduce ti,no-idle dt property

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-03-09 14:15:31 -08:00
Lokesh Vutla 2e18f5a1bc ARM: OMAP2+: hwmod: Introduce ti,no-idle dt property
Introduce a dt property, ti,no-idle, that prevents an IP to idle at any
point. This is to handle Errata i877, which tells that GMAC clocks
cannot be disabled.

Acked-by: Roger Quadros <rogerq@ti.com>
Tested-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2016-03-07 01:41:21 -07:00
Arnd Bergmann 3fcb230d14 SoC related changes for omaps for v4.6 merge window:
- Enable runtime revision detection for dra7 to avoid multiple dts
   files for various variants
 
 - Add dma_slave_map for omap1/2/3 legacy mode booting
 
 - Add RTC interconnect target data for ti81xx and am43x
 
 - Add custom reset handler for PCIeSS
 
 - Add eDMA interconnect target data for dra7
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Merge tag 'omap-for-v4.6/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc

Merge "omap soc changes for v4.6 merge window" from Tony Lindgren:

SoC related changes for omaps for v4.6 merge window:

- Enable runtime revision detection for dra7 to avoid multiple dts
  files for various variants

- Add dma_slave_map for omap1/2/3 legacy mode booting

- Add RTC interconnect target data for ti81xx and am43x

- Add custom reset handler for PCIeSS

- Add eDMA interconnect target data for dra7

* tag 'omap-for-v4.6/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: DRA7: hwmod: Add data for eDMA tpcc, tptc0, tptc1
  ARM: OMAP2+: Add rtc hwmod configuration for ti81xx
  ARM: DRA7: hwmod: Add custom reset handler for PCIeSS
  ARM: OMAP2+: DMA: Provide dma_slave_map to omap-dma for legacy boot
  ARM: OMAP1: DMA: Provide dma_slave_map to omap-dma
  ARM: OMAP: DRA7: Make use of omap_revision information for soc_is* calls
  ARM: AM43XX: hwmod: Add rtc hwmod
  ARM: DRA7: hwmod: Add reset data for PCIe
  ARM: DRA7: hwmod: Fix OCP2SCP sysconfig
  ARM: OMAP2+: hwmod data: Add SSI data for omap36xx
2016-03-02 23:32:24 +01:00
Arnd Bergmann 452d9a0feb Fixes for omaps for v4.6 merge window that are not urgent
for the v4.5-rc cycle:
 
 - Add back optimized cpuidle parameters for 34xx that were
   incorrecly removed earlier with cpuidle cleanup
 
 - Fix SSI for omap36xx to get modem working on N950/N9
 
 - A series of omap hwmod fixes via Paul Walmsley <paul@pwsan.com>
   to fix SSI for omap36xx for modem on N950/N9, fix for
   OCP2SCP sysconfig idle mode, and reset data for PCIe on
   dra7
 
 - Fix out of range register access for omap3 control module
   if syscon max_register is initialized like v4.6 will be
   doing
 
 - Fix l4_ls interconnect clocks for 81xx, it should always
   be sysclk6_ck
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Merge tag 'omap-for-v4.6/fixes-not-urgent-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/fixes-non-critical

Merge "omap non-urgent fixes for v4.6 merge window" from Tony Lindgren:

Fixes for omaps for v4.6 merge window that are not urgent
for the v4.5-rc cycle:

- Add back optimized cpuidle parameters for 34xx that were
  incorrecly removed earlier with cpuidle cleanup

- Fix SSI for omap36xx to get modem working on N950/N9

- A series of omap hwmod fixes via Paul Walmsley <paul@pwsan.com>
  to fix SSI for omap36xx for modem on N950/N9, fix for
  OCP2SCP sysconfig idle mode, and reset data for PCIe on
  dra7

- Fix out of range register access for omap3 control module
  if syscon max_register is initialized like v4.6 will be
  doing

- Fix l4_ls interconnect clocks for 81xx, it should always
  be sysclk6_ck

* tag 'omap-for-v4.6/fixes-not-urgent-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Fix hwmod clock for l4_ls
  ARM: OMAP2+: Fix out of range register access with syscon_config.max_register
  ARM: OMAP3: Add cpuidle parameters table for omap3430
  ARM: DRA7: hwmod: Add reset data for PCIe
  ARM: DRA7: hwmod: Fix OCP2SCP sysconfig
  ARM: OMAP2+: hwmod data: Add SSI data for omap36xx
2016-03-02 23:28:38 +01:00
Tony Lindgren ebf2441480 ARM: OMAP2+: Use srst_udelay for USB on dm814x
Without this booting t410 can fail randomly with no output
depending on the .config options chosen. Enabling debug_ll
causes the problem to go away. I narrowed this down to USB
by disabling one module at a time.

Acked-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-03-02 07:29:29 -08:00
Tony Lindgren e80499190d ARM: OMAP2+: second set of hwmod changes for v4.6
These patches add RTC support for the AM43xx, and add support for
 the DRA7xx eDMA controller's TPCC, TPTC0, and TPTC1 IP blocks.
 Also included is a workaround for PRCM hardreset control of the DRA7xx
 PCIe subsystem.
 
 Note that I do not have a DRA7xx board, and therefore cannot
 test any patches for that SoC family.
 
 Basic build, boot, and PM test logs can be found here:
 
 http://www.pwsan.com/omap/testlogs/omap-hwmod-b-for-v4.6/20160301021258/
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Merge tag 'for-v4.6/omap-hwmod-b' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v4.6/soc

ARM: OMAP2+: second set of hwmod changes for v4.6

These patches add RTC support for the AM43xx, and add support for
the DRA7xx eDMA controller's TPCC, TPTC0, and TPTC1 IP blocks.
Also included is a workaround for PRCM hardreset control of the DRA7xx
PCIe subsystem.

Note that I do not have a DRA7xx board, and therefore cannot
test any patches for that SoC family.

Basic build, boot, and PM test logs can be found here:

http://www.pwsan.com/omap/testlogs/omap-hwmod-b-for-v4.6/20160301021258/
2016-03-01 09:59:38 -08:00
Peter Ujfalusi 34b4182ce5 ARM: DRA7: hwmod: Add data for eDMA tpcc, tptc0, tptc1
Add hwmod data for the eDMA blocks:
 - TPCC: Third-party channel controller
 - TPTC0: Third-party transfer controller 0
 - TPTC1: Third-party transfer controller 1

The TPCC's clock gating status follows the status of its clock and
power domain. This means that the hwmod code can not directly control
the TPCC enable/disable status.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
[paul@pwsan.com: rephrased last two sentences of the patch description]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2016-03-01 01:55:59 -07:00
Tony Lindgren 4f5395f0d1 ARM: OMAP2+: Fix hwmod clock for l4_ls
Looks like we have few cases with wrong clock, and some
entries with missing clock. It should always be sysclk6
for the l4_ls instance.

Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-02-26 11:03:07 -08:00
Tony Lindgren c580324607 ARM: OMAP2+: Add rtc hwmod configuration for ti81xx
This allows RTC to work properly with the related DTS
changes.

Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-02-26 11:02:00 -08:00
Sekhar Nori 1c96bee4df ARM: DRA7: hwmod: Add custom reset handler for PCIeSS
Add a custom reset handler for DRA7x PCIeSS. This
handler is required to deassert PCIe hardreset lines
after they have been asserted.

This enables the PCIe driver to access registers after
PCIeSS has been runtime enabled without having to
deassert hardreset lines itself.

With this patch applied, used lspci to make sure
connected PCIe device enumerates on DRA74x and DRA72x
EVMs.

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Reported-by: Richard Cochran <richardcochran@gmail.com>
Tested-by: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Suman Anna <s-anna@ti.com>
Cc: Dave Gerlach <d-gerlach@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2016-02-25 00:17:42 -07:00
Peter Ujfalusi 731ec4d881 ARM: OMAP2+: DMA: Provide dma_slave_map to omap-dma for legacy boot
We still have some boards booting in legacy mode and they will need to have
the device/slave -> filter_fn mapping so we can convert the OMAP drivers
to use the new dmaengine API for requesting channels.
Only some OMAP24xx and OMAP3xxx boards can boot in legacy mode which means
we only need to provide the map for these SoCs.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-02-22 10:00:50 -08:00
Ivaylo Dimitrov 3f315c5b85 ARM: OMAP2+: Fix onenand initialization to avoid filesystem corruption
Commit e7b11dc7b7 ("ARM: OMAP2+: Fix onenand rate detection to avoid
filesystem corruption") partially fixed onenand configuration when GPMC
module is reset. Finish the job by also providing the correct values in
ONENAND_REG_SYS_CFG1 register.

Fixes: e7b11dc7b7 ("ARM: OMAP2+: Fix onenand rate detection to avoid
filesystem corruption")
Cc: stable@vger.kernel.org # v4.2+
Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-02-22 09:24:10 -08:00
Tony Lindgren d9d806b902 ARM: OMAP2+: Fix out of range register access with syscon_config.max_register
If syscon_config.max_register is initialized like it should be, we have
omap_ctrl_read/write() fail with out of range register access at least
for omap3.

We have omap3.dtsi setting up a regmap range for scm_conf, but we now
have omap_ctrl_read/write() also attempt to use the regmap. However,
omap_ctrl_read/write() is also used for other register ranges in the
system control module (SCM).

Let's fix the issue by just removing the regmap_read/write() usage for
control module as suggested by Tero Kristo <t-kristo@ti.com>.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-02-22 09:22:38 -08:00
Tony Lindgren baa10e0dd2 ARM: OMAP2+: first set of hwmod fixes and additions for v4.6
A few fixes for OMAP hwmod data.  SSI hwmod data for the OMAP 3730,
 and some fixes for the DRA7xx hwmod data.  These shouldn't interfere
 or impact anything else.
 
 Basic build, boot, and PM test logs are available here:
 
 http://www.pwsan.com/omap/testlogs/omap-hwmod-a-for-v4.6/20160214161224/
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Merge tag 'for-v4.6/omap-hwmod-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v4.6/fixes-not-urgent

ARM: OMAP2+: first set of hwmod fixes and additions for v4.6

A few fixes for OMAP hwmod data.  SSI hwmod data for the OMAP 3730,
and some fixes for the DRA7xx hwmod data.  These shouldn't interfere
or impact anything else.

Basic build, boot, and PM test logs are available here:

http://www.pwsan.com/omap/testlogs/omap-hwmod-a-for-v4.6/20160214161224/
2016-02-19 10:37:34 -08:00
Pali Rohár 98f4222150 ARM: OMAP3: Add cpuidle parameters table for omap3430
Based on CPU type choose generic omap3 or omap3430 specific cpuidle
parameters. Parameters for omap3430 were measured on Nokia N900 device and
added by commit 5a1b1d3a9e ("OMAP3: RX-51: Pass cpu idle parameters")
which were later removed by commit 231900afba ("ARM: OMAP3: cpuidle -
remove rx51 cpuidle parameters table") due to huge code complexity.

This patch brings cpuidle parameters for omap3430 devices again, but uses
simple condition based on CPU type.

Fixes: 231900afba ("ARM: OMAP3: cpuidle - remove rx51 cpuidle
parameters table")
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-02-19 10:35:39 -08:00
Keerthy 06c2d368fc ARM: OMAP: DRA7: Make use of omap_revision information for soc_is* calls
Currently of_machine_is_compatible is used to detect the soc which
employs string comparison operations. We already have all the required
information in the omap_revision. Hence make use of the same like
the previous OMAPs and avoid costly string comparisons.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-02-19 10:12:52 -08:00
Keerthy 4321dc8dff ARM: AM43XX: hwmod: Add rtc hwmod
The patch registers the rtc hwmod on AM437x chips.  The RTC module is
physically present on the AM438x SoC used on AM43X-EPOS-EVM, but it is
permanently disabled. A secure RTC is used instead on these devices,
where needed. Hence adding it selectively using a separate list to get
RTC Module functional on the other am43x SoCs used on am437x-gp-evm
and am437x-sk-evm.

Signed-off-by: Keerthy <j-keerthy@ti.com>
[paul@pwsan.com: cleaned up patch description]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2016-02-18 21:46:19 -07:00
Greg Kroah-Hartman 249f3c4fe4 Merge 4.5-rc4 into tty-next
We want the fixes in here, and this resolves a merge error in tty_io.c

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 14:36:04 -08:00
Tony Lindgren cf26f11373 ARM: OMAP2+: Fix omap_device for module reload on PM runtime forbid
If a driver PM runtime is disabled via sysfs, and the module is
unloaded, PM runtime can't do anything to disable the device. Let's
let the interconnect disable the device on BUS_NOTIFY_UNBOUND_DRIVER.

Otherwise omap_device will produce and error on the following module
reload. This can be easily tested with something like:

# modprobe omap_hsmmc
# echo on > /sys/devices/platform/68000000.ocp/4809c000.mmc/power/control
# rmmod omap_hsmmc
# modprobe omap_hsmmc

Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Nishanth Menon <nm@ti.com>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Cc: Tero Kristo <t-kristo@ti.com>
Reported-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-02-12 08:56:52 -08:00
Tony Lindgren 08c78e9d61 ARM: OMAP2+: Improve omap_device error for driver writers
Drivers using pm_runtime_use_autosuspend() may not get disabled after
-EPROBE_DEFER. On the following device driver probe, hardware state
is different from the PM runtime state causing omap_device to produce
the following error:

omap_device_enable() called from invalid state 1

And with omap_device and omap hardware being picky for PM, this will
block any deeper idle states in hardware.

Let's add a proper error message so driver writers can easily fix
their drivers for PM.

In general, the solution is to fix the drivers to follow the PM
runtime documentation:

1. For sections of code that needs the device disabled, use
   pm_runtime_put_sync_suspend() if pm_runtime_set_autosuspend() has
   been set.

2. For driver exit code, use pm_runtime_dont_use_autosuspend() before
   pm_runtime_put_sync() if pm_runtime_use_autosuspend() has been
   set.

Let's not return with 0 from _od_runtime_resume() as that will
eventually lead into new drivers with broken PM runtime that will
block deeper idle states on omaps.

Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Nishanth Menon <nm@ti.com>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Cc: Tero Kristo <t-kristo@ti.com>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-02-12 08:56:52 -08:00
Ivaylo Dimitrov 5f35dc47c1 ARM: OMAP2+: Set system_rev from ATAGS for n900
This fixed a regression with DT boot compared to legacy boot.

Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Tested-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
[tony@atomide.com: edited patch subject to follow standard]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-02-10 16:17:15 -08:00
Kishon Vijay Abraham I 8fe097a3d9 ARM: DRA7: hwmod: Add reset data for PCIe
Add PCIe reset data to PCIe hwmods on DRA7x.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Reviewed-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2016-02-09 02:18:52 -07:00
Kishon Vijay Abraham I 4965be1fc8 ARM: DRA7: hwmod: Fix OCP2SCP sysconfig
OCP2SCP doesn't support smart idle wakeup according to
Table 26-22. OCP2SCP_SYSCONFIG in AM572x TRM [1] and
Table 26-22. OCP2SCP_SYSCONFIG in AM571x TRM [2].
Remove SIDLE_SMART_WKUP from the list of supported SIDLE modes
in hwmod data.

[1] -> http://www.ti.com/lit/ug/spruhz6e/spruhz6e.pdf
[2] -> http://www.ti.com/lit/ug/spruhz7a/spruhz7a.pdf

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2016-02-09 02:18:40 -07:00
Masahiro Yamada 9dfb81efbb ARM: drop unused Makefile.boot of Multiplatform SoCs
The variable "MACHINE" is empty if CONFIG_ARCH_MULTIPLATFORM=y,
so these Makefile.boot files are never included.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Michal Simek <michal.simek@xilinx.com> (for Zynq)
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2016-02-08 13:35:41 -08:00
Jean Delvare 1349ba02bf ARM: OMAP: serial: Rename DRIVER_NAME
DRIVER_NAME is too generic to be used in a driver-specific platform
data file. Use a name specific to the driver instead, to avoid
collisions.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Acked-by: Tony Lindgren <tony@atomide.com>
Cc: Jiri Slaby <jslaby@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06 23:13:30 -08:00
Sebastian Reichel 771120761f ARM: OMAP2+: hwmod data: Add SSI data for omap36xx
This patch enables Synchronous Serial Interface (SSI)
hwmod support for OMAP36xx SoCs (used by Nokia N950/N9).

Signed-off-by: Sebastian Reichel <sre@kernel.org>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2016-02-02 10:06:13 -07:00
Tony Lindgren 7e3b120770 Merge branch 'enable-devices' into omap-for-v4.5/fixes 2016-01-25 10:46:21 -08:00
Neil Armstrong 20437f79f6 ARM: OMAP: Add PWM dmtimer platform data quirks
In order to set the currently platform dependent dmtimer
functions pointers as platform data for the pwm-omap-dmtimer
platform driver, add it to plat-omap auxdata_lookup table.

Suggested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-01-25 09:51:28 -08:00
Tony Lindgren 4da597d166 ARM: OMAP2+: Fix ppa_zero_params and ppa_por_params for rodata
We don't want to write to .text so let's move ppa_zero_params and
ppa_por_params to .data and access them via pointers.

Note that I have not been able to test as we I don't have a HS
omap4 to test with. The code has been changed in similar way as
for omap3 though.

Cc: Kees Cook <keescook@chromium.org>
Cc: Laura Abbott <labbott@redhat.com>
Cc: Nishanth Menon <nm@ti.com>
Cc: Richard Woodruff <r-woodruff2@ti.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Tero Kristo <t-kristo@ti.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Cc: stable@vger.kernel.org # v4.0+
Fixes: 1e6b48116a ("ARM: mm: allow non-text sections to be
non-executable")
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-01-22 08:26:08 -08:00
Tony Lindgren 0a0b132755 ARM: OMAP2+: Fix l2_inv_api_params for rodata
We don't want to write to .text, so let's move l2_inv_api_params
to .data and access it via a pointer.

Cc: Kees Cook <keescook@chromium.org>
Cc: Laura Abbott <labbott@redhat.com>
Cc: Nishanth Menon <nm@ti.com>
Cc: Richard Woodruff <r-woodruff2@ti.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Tero Kristo <t-kristo@ti.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Cc: stable@vger.kernel.org # v4.0+
Fixes: 1e6b48116a ("ARM: mm: allow non-text sections to be
non-executable")
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-01-22 08:26:08 -08:00
Tony Lindgren a5311d4d13 ARM: OMAP2+: Fix save_secure_ram_context for rodata
We don't want to write to .text and we can move save_secure_ram_context
into .data as it all gets copied into SRAM anyways.

Cc: Kees Cook <keescook@chromium.org>
Cc: Laura Abbott <labbott@redhat.com>
Cc: Nishanth Menon <nm@ti.com>
Cc: Richard Woodruff <r-woodruff2@ti.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: Tero Kristo <t-kristo@ti.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Cc: stable@vger.kernel.org # v4.0+
Fixes: 1e6b48116a ("ARM: mm: allow non-text sections to be
non-executable")
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-01-22 08:26:08 -08:00
Tony Lindgren eeaf9646ac ARM: OMAP2+: Fix l2dis_3630 for rodata
We don't want to write to .text section. Let's move l2dis_3630
to .data and access it via a pointer.

For calculating the offset, let's optimize out the add and do it
in ldr/str as suggested by Nicolas Pitre <nicolas.pitre@linaro.org>.

Cc: Kees Cook <keescook@chromium.org>
Cc: Laura Abbott <labbott@redhat.com>
Cc: Nishanth Menon <nm@ti.com>
Cc: Richard Woodruff <r-woodruff2@ti.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Tero Kristo <t-kristo@ti.com>
Cc: stable@vger.kernel.org # v4.0+
Acked-by: Nicolas Pitre <nico@linaro.org>
Cc: stable@vger.kernel.org # v4.0+
Fixes: 1e6b48116a ("ARM: mm: allow non-text sections to be
non-executable")
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-01-22 08:26:08 -08:00
Tony Lindgren d9db591033 ARM: OMAP2+: Fix wait_dll_lock_timed for rodata
We don't want to be writing to .text so it can be set rodata.
Fix error "Unable to handle kernel paging request at virtual address
c012396c" in wait_dll_lock_timed if CONFIG_DEBUG_RODATA is selected.

As these counters are for debugging only and unused, we can just
remove them.

Cc: Kees Cook <keescook@chromium.org>
Cc: Laura Abbott <labbott@redhat.com>
Cc: Nishanth Menon <nm@ti.com>
Cc: Richard Woodruff <r-woodruff2@ti.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Tero Kristo <t-kristo@ti.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Cc: stable@vger.kernel.org # v4.0+
Fixes: 1e6b48116a ("ARM: mm: allow non-text sections to be
non-executable")
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-01-22 08:26:08 -08:00
Suman Anna 4850d43143 ARM: OMAP2+: Remove legacy mailbox device instantiation
The legacy-style mailbox device creation is supported currently
only for OMAP3, as all other SoCs are DT-boot only. Even on this
SoC, there are no client drivers that utilize these mailbox devices.
So, clean up the legacy-style mailbox device instantiation logic.
The mailbox devices are already present and supported for the DT
boot on OMAP3.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-01-21 13:57:24 -08:00
Linus Torvalds 30f05309bd More power management and ACPI updates for v4.5-rc1
- Modify the driver core and the USB subsystem to allow USB devices
    to stay suspended over system suspend/resume cycles if they have
    been runtime-suspended already beforehand and fix some bugs on
    top of these changes (Tomeu Vizoso, Rafael Wysocki).
 
  - Update ACPICA to upstream revision 20160108, including updates
    of the ACPICA's copyright notices, a code fixup resulting from
    a regression fix that was necessary in the upstream code only
    (the regression fixed by it has never been present in Linux)
    and a compiler warning fix (Bob Moore, Lv Zheng).
 
  - Fix a recent regression in the cpuidle menu governor that broke
    it on practically all architectures other than x86 and make a
    couple of optimizations on top of that fix (Rafael Wysocki).
 
  - Clean up the selection of cpuidle governors depending on whether
    or not the kernel is configured for tickless systems (Jean Delvare).
 
  - Revert a recent commit that introduced a regression in the ACPI
    backlight driver, address the problem it attempted to fix in a
    different way and revert one more cosmetic change depending on
    the problematic commit (Hans de Goede).
 
  - Add two more ACPI backlight quirks (Hans de Goede).
 
  - Fix a few minor problems in the core devfreq code, clean it up
    a bit and update the MAINTAINERS information related to it
    (Chanwoo Choi, MyungJoo Ham).
 
  - Improve an error message in the ACPI fan driver (Andy Lutomirski).
 
  - Fix a recent build regression in the cpupower tool (Shreyas Prabhu).
 
 /
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Merge tag 'pm+acpi-4.5-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more power management and ACPI updates from Rafael Wysocki:
 "This includes fixes on top of the previous batch of PM+ACPI updates
  and some new material as well.

  From the new material perspective the most significant are the driver
  core changes that should allow USB devices to stay suspended over
  system suspend/resume cycles if they have been runtime-suspended
  already beforehand.  Apart from that, ACPICA is updated to upstream
  revision 20160108 (cosmetic mostly, but including one fixup on top of
  the previous ACPICA update) and there are some devfreq updates the
  didn't make it before (due to timing).

  A few recent regressions are fixed, most importantly in the cpuidle
  menu governor and in the ACPI backlight driver and some x86 platform
  drivers depending on it.

  Some more bugs are fixed and cleanups are made on top of that.

  Specifics:

   - Modify the driver core and the USB subsystem to allow USB devices
     to stay suspended over system suspend/resume cycles if they have
     been runtime-suspended already beforehand and fix some bugs on top
     of these changes (Tomeu Vizoso, Rafael Wysocki).

   - Update ACPICA to upstream revision 20160108, including updates of
     the ACPICA's copyright notices, a code fixup resulting from a
     regression fix that was necessary in the upstream code only (the
     regression fixed by it has never been present in Linux) and a
     compiler warning fix (Bob Moore, Lv Zheng).

   - Fix a recent regression in the cpuidle menu governor that broke it
     on practically all architectures other than x86 and make a couple
     of optimizations on top of that fix (Rafael Wysocki).

   - Clean up the selection of cpuidle governors depending on whether or
     not the kernel is configured for tickless systems (Jean Delvare).

   - Revert a recent commit that introduced a regression in the ACPI
     backlight driver, address the problem it attempted to fix in a
     different way and revert one more cosmetic change depending on the
     problematic commit (Hans de Goede).

   - Add two more ACPI backlight quirks (Hans de Goede).

   - Fix a few minor problems in the core devfreq code, clean it up a
     bit and update the MAINTAINERS information related to it (Chanwoo
     Choi, MyungJoo Ham).

   - Improve an error message in the ACPI fan driver (Andy Lutomirski).

   - Fix a recent build regression in the cpupower tool (Shreyas
     Prabhu)"

* tag 'pm+acpi-4.5-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (32 commits)
  cpuidle: menu: Avoid pointless checks in menu_select()
  sched / idle: Drop default_idle_call() fallback from call_cpuidle()
  cpupower: Fix build error in cpufreq-info
  cpuidle: Don't enable all governors by default
  cpuidle: Default to ladder governor on ticking systems
  time: nohz: Expose tick_nohz_enabled
  ACPICA: Update version to 20160108
  ACPICA: Silence a -Wbad-function-cast warning when acpi_uintptr_t is 'uintptr_t'
  ACPICA: Additional 2016 copyright changes
  ACPICA: Reduce regression fix divergence from upstream ACPICA
  ACPI / video: Add disable_backlight_sysfs_if quirk for the Toshiba Satellite R830
  ACPI / video: Revert "thinkpad_acpi: Use acpi_video_handles_brightness_key_presses()"
  ACPI / video: Document acpi_video_handles_brightness_key_presses() a bit
  ACPI / video: Fix using an uninitialized mutex / list_head in acpi_video_handles_brightness_key_presses()
  ACPI / video: Revert "ACPI / video: driver must be registered before checking for keypresses"
  ACPI / fan: Improve acpi_device_update_power error message
  ACPI / video: Add disable_backlight_sysfs_if quirk for the Toshiba Portege R700
  cpuidle: menu: Fix menu_select() for CPUIDLE_DRIVER_STATE_START == 0
  MAINTAINERS: Add devfreq-event entry
  MAINTAINERS: Add missing git repository and directory for devfreq
  ...
2016-01-20 19:06:49 -08:00
Linus Torvalds 6d1c244803 ARM: DT updates for v4.5
As usual, the bulk of this release is again DT file contents.
 
 There's a huge number of changes here, and it's challenging to give a crisp
 overview of just what is in here. To start with:
 
 New boards:
 
 - TI-based DM3730 from LogicPD (Torpedo)
 - Cosmic+ M4 (nommu) initial support (Freescale Vybrid)
 - Raspberry Pi 2 DT files
 - Watchdog on Meson8b
 - Veyron-mickey (ASUS Chromebit) DTS
 - Rockchip rk3228 SoC and eval board
 - Sigma Designs Tango4
 
 Improvements:
 
 - Improved support for Qualcomm APQ8084, including Sony Xperia Z DT files
 - Misc new devices for Rockchip rk3036 and rk3288
 - Allwinner updates for misc SoCs and systems
 
 ... and a _large_ number of other changes across the field. Devices
 added to SoC DTSI and board DTS files for a number of SoC vendors, new
 product boards on already-supported SoCs, cleanups and refactorings of
 existing DTS/DTSI files and a bunch of other changes.
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Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM DT updates from Olof Johansson:
 "As usual, the bulk of this release is again DT file contents.

  There's a huge number of changes here, and it's challenging to give a
  crisp overview of just what is in here.  To start with:

  New boards:

   - TI-based DM3730 from LogicPD (Torpedo)
   - Cosmic+ M4 (nommu) initial support (Freescale Vybrid)
   - Raspberry Pi 2 DT files
   - Watchdog on Meson8b
   - Veyron-mickey (ASUS Chromebit) DTS
   - Rockchip rk3228 SoC and eval board
   - Sigma Designs Tango4

  Improvements:

   - Improved support for Qualcomm APQ8084, including Sony Xperia Z DT files
   - Misc new devices for Rockchip rk3036 and rk3288
   - Allwinner updates for misc SoCs and systems

  ... and a _large_ number of other changes across the field.  Devices
  added to SoC DTSI and board DTS files for a number of SoC vendors, new
  product boards on already-supported SoCs, cleanups and refactorings of
  existing DTS/DTSI files and a bunch of other changes"

* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (469 commits)
  ARM: dts: compulab: add new board description
  ARM: versatile: add the syscon LEDs to the DT
  dts: vt8500: Fix errors in SDHC node for WM8505
  ARM: dts: imx6q: clean up unused ipu2grp
  ARM: dts: silk: Add compatible property to "partitions" node
  ARM: dts: gose: Add compatible property to "partitions" node
  ARM: dts: porter: Add compatible property to "partitions" node
  ARM: dts: koelsch: Add compatible property to "partitions" node
  ARM: dts: lager: Add compatible property to "partitions" node
  ARM: dts: bockw: Add compatible property to "partitions" node
  ARM: dts: meson8b: Add watchdog node
  Documentation: watchdog: Add new bindings for meson8b
  ARM: meson: Add status LED for Odroid-C1
  ARM: dts: uniphier: fix a typo in comment block
  ARM: bcm2835: Add the auxiliary clocks to the device tree.
  ARM: bcm2835: Add devicetree for bcm2836 and Raspberry Pi 2 B
  ARM: bcm2835: Move the CPU/peripheral include out of common RPi DT.
  ARM: bcm2835: Split the DT for peripherals from the DT for the CPU
  ARM: realview: set up cache correctly on the PB11MPCore
  ARM: dts: Unify G2D device node with other devices on exynos4
  ...
2016-01-20 18:16:29 -08:00
Linus Torvalds 1305eda751 ARM: SoC platform updates for v4.5
Updates for new platform support:
 
 - New platform: Tango4 from Sigma Designs.
 - Broadcom BCM2836 (Raspberry Pi 2 SoC)
 - Enable cpufreq on Freescale i.MX7D
 - Rockchip: SMP support for rk3036, general support for rk3228
 - SMP support on Broadcom Kona and NSP
 - Cleanups for OMAP removing legacy IOMMU data
 
 + a bunch of misc fixes and tweaks for various platforms.
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates from Olof Johansson:
 "Updates for new platform support:

   - New platform: Tango4 from Sigma Designs.
   - Broadcom BCM2836 (Raspberry Pi 2 SoC)
   - Enable cpufreq on Freescale i.MX7D
   - Rockchip: SMP support for rk3036, general support for rk3228
   - SMP support on Broadcom Kona and NSP
   - Cleanups for OMAP removing legacy IOMMU data

  + a bunch of misc fixes and tweaks for various platforms"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (46 commits)
  ARM: tango: Fix UP build issues
  ARM: tango: pass ARM arch level for smc.S
  ARM: bcm2835: Add Kconfig support for bcm2836
  ARM: OMAP2+: Add support for dm814x and dra62x usb
  ARM: OMAP2+: Add mmc hwmod entries for dm814x
  ARM: OMAP2+: Update 81xx clock and power domains for default, active and sgx
  ARM: OMAP2+: Fix SoC detection for dra62x j5-eco
  ARM: tango4: Initial platform support
  ARM: bcm2835: Add a compat string for bcm2836 machine probe
  dt-bindings: Add root properties for Raspberry Pi 2
  ARM: imx: select SRC for i.MX7
  ARM: uniphier: select PINCTRL
  ARM: OMAP2+: Remove device creation for omap-pcm-audio
  ARM: OMAP1: Remove device creation for omap-pcm-audio
  ARM: rockchip: enable support for RK3228 SoCs
  ARM: rockchip: use const and __initconst for rk3036 smp_operations
  ARM: zynq: Select ARCH_HAS_RESET_CONTROLLER
  ARM: BCM: Add SMP support for Broadcom 4708
  ARM: BCM: Add SMP support for Broadcom NSP
  ARM: BCM: Clean up SMP support for Broadcom Kona
  ...
2016-01-20 18:10:05 -08:00
Linus Torvalds 5083c54264 ARM: SoC cleanups for v4.5
A smallish number of general cleanup commits this release cycle. Some
 of these are minor tweaks:
 
 - shmobile change of binding for their GIC (using arm,pl390 now)
 - ARCH_RENESAS introduction
 - Misc other renesas updates
 
 There's also a couple of treewide commits from Masahiro Yamada cleaning up
 const/__initconst for SMP operation structs and a switch to using "depends
 on" instead of if-constructs on most of the Kconfig platform targets.
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Merge tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanups from Olof Johansson:
 "A smallish number of general cleanup commits this release cycle.  Some
  of these are minor tweaks:

   - shmobile change of binding for their GIC (using arm,pl390 now)
   - ARCH_RENESAS introduction
   - Misc other renesas updates

  There's also a couple of treewide commits from Masahiro Yamada
  cleaning up const/__initconst for SMP operation structs and a switch
  to using "depends on" instead of if-constructs on most of the Kconfig
  platform targets"

* tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  staging: board: armadillo800eva: Use "arm,pl390"
  staging: board: kzm9d: Use "arm,pl390"
  ARM: shmobile: r8a7778 dtsi: Use "arm,pl390" for GIC
  ARM: shmobile: emev2 dtsi: Use "arm,pl390" for GIC
  ARM: shmobile: r8a7740 dtsi: Use "arm,pl390" for GIC
  ARM: shmobile: r7s72100 dtsi: Use "arm,pl390" for GIC
  ARM: use "depends on" for SoC configs instead of "if" after prompt
  ARM/clocksource: use automatic DT probing for ux500 PRCMU
  ARM: use const and __initconst for smp_operations
  ARM: hisi: do not export smp_operations structures
  ARM: mvebu: remove unused mach/gpio.h
  ARM: shmobile: Remove legacy mach/irqs.h
  ARM: shmobile: Introduce ARCH_RENESAS
  MAINTAINERS: Remove link to oss.renesas.com which is closed
2016-01-20 17:55:20 -08:00
Linus Torvalds 0c582826a1 ARM: SoC non-urgent fixes for v4.5
As usual, we queue up a few fixes that don't seem urgent enough to go in
 through -rc.
 
  - MAINTAINERS updates to add a list for brcmstb and fix a typo
  - A handful of fixes for OMAP 81xx, a recently resurrected platform so these
    can't be considered real regressions and thus got queued.
  - A couple of other small fixes for scoop, sa1100 and davinci
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Merge tag 'armsoc-fixes-nc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull non-urgent ARM SoC fixes from Olof Johansson:
 "As usual, we queue up a few fixes that don't seem urgent enough to go
  in through -rc.

   - MAINTAINERS updates to add a list for brcmstb and fix a typo
   - A handful of fixes for OMAP 81xx, a recently resurrected platform
     so these can't be considered real regressions and thus got queued.
   - A couple of other small fixes for scoop, sa1100 and davinci"

* tag 'armsoc-fixes-nc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: OMAP2+: Fix randconfig build warning for dm814_pllss_data
  ARM: sa1100/simpad: Be sure to clamp return value
  ARM: scoop: Be sure to clamp return value
  ARM: davinci: fix a problematic usage of WARN()
  ARM: davinci: only select WT cache if cache is enabled
  ARM: OMAP2+: Remove useless check for legacy booting for dm814x
  ARM: OMAP2+: Enable GPIO for dm814x
  ARM: dts: Fix dm814x pinctrl address and mask
  ARM: dts: Fix dm8148 control modules ranges
  ARM: OMAP2+: Fix timer entries for dm814x
  ARM: dts: Fix some mux and divider clocks to get dm814x-evm booting
  ARM: OMAP2+: Add DPPLS clock manager for dm814x
  clk: ti: Add few dm814x clock aliases
  ARM: dts: Fix dm814x entries for pllss and prcm
  MAINTAINERS: gpio-brcmstb: Remove stray '>'
  MAINTAINERS: brcmstb: Include Broadcom internal mailing-list
2016-01-20 17:44:16 -08:00
Rafael J. Wysocki 6efd3f8cde Merge branch 'pm-core'
* pm-core:
  driver core: Avoid NULL pointer dereferences in device_is_bound()
  platform: Do not detach from PM domains on shutdown
  USB / PM: Allow USB devices to remain runtime-suspended when sleeping
  PM / sleep: Go direct_complete if driver has no callbacks
  PM / Domains: add setter for dev.pm_domain
  device core: add device_is_bound()
2016-01-21 00:42:59 +01:00
Linus Torvalds ece6267878 The clk framework and driver changes for 4.5 look pretty typical. The
bulk of the changes are to clk controller drivers, though some
 improvements to the core and some re-usable blocks/templates also
 received some love. In this past cycle the clk maintainers developed a
 good workflow for handling the common case of patch submissions
 containing a new drivers, new shared Device Tree header and a new Device
 Tree binding description. This requires coordination with the Device
 Tree maintainers and with the architecture maintainers (typically the
 arm-soc tree in our case). This explains the increase in changes to
 include/dt-bindings/... and to
 Documentation/devicetree/bindings/clock/... coming from the clk tree.
 The same commits can be expected to come through those trees on
 occasion, through the use of shared, immutable branches.
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Merge tag 'clk-for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk framework updates from Michael Turquette:
 "The clk framework and driver changes for 4.5 look pretty typical.  The
  bulk of the changes are to clk controller drivers, though some
  improvements to the core and some re-usable blocks/templates also
  received some love.

  In this past cycle the clk maintainers developed a good workflow for
  handling the common case of patch submissions containing a new
  drivers, new shared Device Tree header and a new Device Tree binding
  description.  This requires coordination with the Device Tree
  maintainers and with the architecture maintainers (typically the
  arm-soc tree in our case).

  This explains the increase in changes to include/dt-bindings/... and
  to Documentation/devicetree/bindings/clock/... coming from the clk
  tree.  The same commits can be expected to come through those trees on
  occasion, through the use of shared, immutable branches"

* tag 'clk-for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (125 commits)
  clk: remove duplicated COMMON_CLK_NXP record from clk/Kconfig
  clk: fix clk-gpio.c with optional clock= DT property
  clk: rockchip: fix section mismatches with new child-clocks
  clk: gpio: handle error codes for of_clk_get_parent_count()
  clk: gpio: fix memory leak
  clk: shmobile: r8a7795: Add SATA0 clock
  clk: bcm2835: Add PWM clock support
  clk: bcm2835: Support for clock parent selection
  clk: bcm2835: add a round up ability to the clock divisor
  clk: lpc32xx: add common clock framework driver
  clk: lpc18xx: add NXP specific COMMON_CLK_NXP configuration symbol
  dt-bindings: clock: add NXP LPC32xx clock list for consumers
  dt-bindings: clock: add description of LPC32xx USB clock controller
  dt-bindings: clock: add description of LPC32xx clock controller
  clk: rockchip: rk3036: include downstream muxes into fractional dividers
  clk: add flag for clocks that need to be enabled on rate changes
  clk: rockchip: Allow the RK3288 SPDIF clocks to change their parent
  clk: rockchip: include downstream muxes into fractional dividers
  clk: rockchip: handle mux dependency of fractional dividers
  clk: bcm2835: Add a driver for the auxiliary peripheral clock gates.
  ...
2016-01-15 18:21:28 -08:00
Linus Torvalds 01e9d22638 Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King:

 - UEFI boot and runtime services support for ARM from Ard Biesheuvel
   and Roy Franz.

 - DT compatibility with old atags booting protocol for Nokia N900
   devices from Ivaylo Dimitrov.

 - PSCI firmware interface using new arm-smc calling convention from
   Jens Wiklander.

 - Runtime patching for udiv/sdiv instructions for ARMv7 CPUs that
   support these instructions from Nicolas Pitre.

 - L2x0 cache updates from Dirk B and Linus Walleij.

 - Randconfig fixes from Arnd Bergmann.

 - ARMv7M (nommu) updates from Ezequiel Garcia

* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (34 commits)
  ARM: 8481/2: drivers: psci: replace psci firmware calls
  ARM: 8480/2: arm64: add implementation for arm-smccc
  ARM: 8479/2: add implementation for arm-smccc
  ARM: 8478/2: arm/arm64: add arm-smccc
  ARM: 8494/1: mm: Enable PXN when running non-LPAE kernel on LPAE processor
  ARM: 8496/1: OMAP: RX51: save ATAGS data in the early boot stage
  ARM: 8495/1: ATAGS: move save_atags() to arch/arm/include/asm/setup.h
  ARM: 8452/3: PJ4: make coprocessor access sequences buildable in Thumb2 mode
  ARM: 8482/1: l2x0: make it possible to disable outer sync from DT
  ARM: 8488/1: Make IPI_CPU_BACKTRACE a "non-secure" SGI
  ARM: 8487/1: Remove IPI_CALL_FUNC_SINGLE
  ARM: 8485/1: cpuidle: remove cpu parameter from the cpuidle_ops suspend hook
  ARM: 8484/1: Documentation: l2c2x0: Mention separate controllers explicitly
  ARM: 8483/1: Documentation: l2c: Rename l2cc to l2c2x0
  ARM: 8477/1: runtime patch udiv/sdiv instructions into __aeabi_{u}idiv()
  ARM: 8476/1: VDSO: use PTR_ERR_OR_ZERO for vma check
  ARM: 8453/2: proc-v7.S: don't locate temporary stack space in .text section
  ARM: add UEFI stub support
  ARM: wire up UEFI init and runtime support
  ARM: only consider memblocks with NOMAP cleared for linear mapping
  ...
2016-01-12 12:39:07 -08:00
Mauro Carvalho Chehab c3152592e7 Merge branch 'patchwork' into v4l_for_linus
* patchwork: (204 commits)
  [media] rc: sunxi-cir: Initialize the spinlock properly
  [media] rtl2832: do not filter out slave TS null packets
  [media] rtl2832: print reg number on error case
  [media] rtl28xxu: return demod reg page from driver cache
  [media] coda: enable MPEG-2 ES decoding
  [media] coda: don't start streaming without queued buffers
  [media] coda: hook up vidioc_prepare_buf
  [media] coda: relax coda_jpeg_check_buffer for trailing bytes
  [media] coda: make to_coda_video_device static
  [media] s5p-mfc: remove volatile attribute from MFC register addresses
  [media] s5p-mfc: merge together s5p_mfc_hw_call and s5p_mfc_hw_call_void
  [media] s5p-mfc: use spinlock to protect MFC context
  [media] s5p-mfc: remove unnecessary callbacks
  [media] s5p-mfc: make queue cleanup code common
  [media] s5p-mfc: use one implementation of s5p_mfc_get_new_ctx
  [media] s5p-mfc: constify s5p_mfc_codec_ops structures
  [media] au8522: Avoid memory leak for device config data
  [media] ir-lirc-codec.c: don't leak lirc->drv-rbuf
  [media] uvcvideo: small cleanup in uvc_video_clock_update()
  [media] uvcvideo: Fix reading the current exposure value of UVC
  ...
2016-01-11 11:13:27 -02:00
Tomeu Vizoso 989561de9b PM / Domains: add setter for dev.pm_domain
Adds a function that sets the pointer to dev_pm_domain in struct device
and that warns if the device has already finished probing. The reason
why we want to enforce that is because in the general case that can
cause problems and also that we can simplify code quite a bit if we can
always assume that.

This patch also changes all current code that directly sets the
dev.pm_domain pointer.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-01-08 01:12:06 +01:00
Tony Lindgren e7b11dc7b7 ARM: OMAP2+: Fix onenand rate detection to avoid filesystem corruption
Commit 63aa945b10 ("memory: omap-gpmc: Add Kconfig option for debug")
unified the GPMC debug for the SoCs with GPMC. The commit also left out
the option for HWMOD_INIT_NO_RESET as we now require proper timings for
GPMC to be able to remap GPMC devices out of address 0.

Unfortunately on Nokia N900, onenand now only partially works with the
device tree provided timings. It works enough to get detected but the
clock rate supported by the onenand chip gets misdetected. This in turn
causes the GPMC timings to be miscalculated and this leads into file
system corruption on N900.

Looks like onenand needs CS_CONFIG1 bit 27 WRITETYPE set for for sync
write. This is needed also for async timings when we write to onenand
with omap2_onenand_set_async_mode(). Without sync write bit set, the
async read for the onenand ONENAND_REG_VERSION_ID will return 0xfff.

Let's exit with an error if onenand rate is not detected. And let's
remove the extra call to omap2_onenand_set_async_mode() as we only need
to do this once at the end of omap2_onenand_setup_async().

Fixes: 63aa945b10 ("memory: omap-gpmc: Add Kconfig option for debug")
Cc: stable@vger.kernel.org # v4.2+
Reported-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Tested-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-01-06 09:21:09 -08:00
Russell King 598bcc6ea6 Merge branches 'misc' and 'misc-rc6' into for-linus 2016-01-05 11:07:28 +00:00
Ivaylo Dimitrov 8c51b03493 ARM: 8496/1: OMAP: RX51: save ATAGS data in the early boot stage
This fixes a regression with device tree based booting compared to legacy booting for n900 to make the n900 legacy user space to also work with device tree based booting

Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-01-04 11:26:00 +00:00
Arnd Bergmann ed1c7848dc Merge tag 'omap-for-v4.5/81xx-soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc
Pull "reworked soc changes for ti81xx devices and minimal dra62x
j5ec-evm support" from Tony Lindgren:

Add minimal SoC support for dra62x also known as j5eco. As it's closely
related to dm814x, we can treat it as a dm814x variant for now and do
rest of the configuration with DTS just files. And let's add hwmod
support for MMC and USB on dm814x and dra62x.

* tag 'omap-for-v4.5/81xx-soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Add support for dm814x and dra62x usb
  ARM: OMAP2+: Add mmc hwmod entries for dm814x
  ARM: OMAP2+: Update 81xx clock and power domains for default, active and sgx
  ARM: OMAP2+: Fix SoC detection for dra62x j5-eco
2015-12-31 17:36:39 +01:00
Arnd Bergmann d4e68fa37f Add minimal device tree support for dra62x also known j5eco. It is
related to dm814x, just the clocks are a bit different and it has a
 different set of integrated devices. And let's get some basic dm814x
 and dra62x devices working as many of the devices are like on am33xx::
 
 - pinctrl using the pinctrl defines as for am33xx
 
 - Updated EDMA bindings with support for using exma_xbar
 
 - MMC support for dm814x-evm, t410 and dra62x-j5eco-evm
 
 - USB support for dm814x-evm, t410 and dra62x-j5eco-evm
 
 This branch depends on an earlier omap-for-v4.5/81xx-fixes-signed
 branch that has dm814x dts fixes interlaced with SoC related fixes to
 keep things booting. The interlaced SoC and dts fixes were needed
 because of issues with the device tree defined clocks that just
 happened to work on bootloader timings for t410 earlier.
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Merge tag 'omap-for-v4.5/81xx-dts-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/dt

Pull "reworked dts changes for ti81xx devices and minimal
dra62x j5ec-evm support" from Tony Lindgren:

Add minimal device tree support for dra62x also known j5eco. It is
related to dm814x, just the clocks are a bit different and it has a
different set of integrated devices. And let's get some basic dm814x
and dra62x devices working as many of the devices are like on am33xx::

- pinctrl using the pinctrl defines as for am33xx

- Updated EDMA bindings with support for using exma_xbar

- MMC support for dm814x-evm, t410 and dra62x-j5eco-evm

- USB support for dm814x-evm, t410 and dra62x-j5eco-evm

This branch depends on an earlier omap-for-v4.5/81xx-fixes-signed
branch that has dm814x dts fixes interlaced with SoC related fixes to
keep things booting. The interlaced SoC and dts fixes were needed
because of issues with the device tree defined clocks that just
happened to work on bootloader timings for t410 earlier.

* tag 'omap-for-v4.5/81xx-dts-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (21 commits)
  ARM: dts: Add usb support for j5-eco evm
  ARM: dts: Add usb support for hp t410
  ARM: dts: Add usb support for dm814x-evm
  ARM: dts: Add usb support for dm814x and dra62x
  ARM: dts: Enable emmc on hp t410
  ARM: dts: Add mmc support for dra62x j5-eco evm
  ARM: dts: Add mmc support for dm8148-evm
  ARM: dts: Add mmc device entries for dm814x
  ARM: dts: Update edma bindings on dm814x to use edma_xbar
  ARM: dts: Add pinctrl macros for dm814x
  ARM: dts: Add minimal dra62x j5-eco evm support
  ARM: dts: Add basic support for dra62x j5-eco SoC
  ARM: OMAP2+: Remove useless check for legacy booting for dm814x
  ARM: OMAP2+: Enable GPIO for dm814x
  ARM: dts: Fix dm814x pinctrl address and mask
  ARM: dts: Fix dm8148 control modules ranges
  ARM: OMAP2+: Fix timer entries for dm814x
  ARM: dts: Fix some mux and divider clocks to get dm814x-evm booting
  ARM: OMAP2+: Add DPPLS clock manager for dm814x
  clk: ti: Add few dm814x clock aliases
  ...
2015-12-31 16:25:22 +01:00
Arnd Bergmann 08ceca8ea6 Fix a randconfig build warning introduced in the earlier branch
omap-for-v4.5/81xx-fixes-signed.
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Merge tag 'omap-for-v4.5/81xx-fix-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/fixes-non-critical

Merge "reworked fix for earlier ti81xx changes for v4.5 merge window" from Tony Lindgren:

Fix a randconfig build warning introduced in the earlier branch
omap-for-v4.5/81xx-fixes-signed.

* tag 'omap-for-v4.5/81xx-fix-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Fix randconfig build warning for dm814_pllss_data
2015-12-31 16:18:51 +01:00
Tony Lindgren dbb7e70a69 ARM: OMAP2+: Fix randconfig build warning for dm814_pllss_data
Fix warning for arch/arm/mach-omap2/prm_common.c:666:35: warning:
‘dm814_pllss_data’ defined but not used [-Wunused-variable]".

This can happen if CONFIG_SOC_TI81XX is not selected.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-22 17:01:02 -08:00
Tony Lindgren f53850b5dc ARM: OMAP2+: Add support for dm814x and dra62x usb
The usb phys are different on dm814x compared to dm816x so we need to
use the clkdcoldo output for usb.

Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-22 16:23:08 -08:00
Tony Lindgren c757fda893 ARM: OMAP2+: Add mmc hwmod entries for dm814x
Let's add mmc entries for dm814x. To do that, we need to rename some
entries to be common for 81xx.

Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-22 16:23:08 -08:00
Tony Lindgren 418d4ebcfe ARM: OMAP2+: Update 81xx clock and power domains for default, active and sgx
These offsets seem to be common, so let's rename the defines. And let's
set up the default_l3_slow_81xx_clkdm with active and default powerdomains
for dm814x. These are needed for usb to work.

Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-22 16:23:08 -08:00
Tony Lindgren 68b813bf57 ARM: OMAP2+: Fix SoC detection for dra62x j5-eco
We can boot dra62x j5-eco using the dm814x code as the clocks and
devices are mapped in the device tree. The dra62x is also known
as jacinto 5 eco.

We may want to add separate soc_is macros for dra62x if needed,
but this gets us to the point where we can boot dra62x with just
dts changes.

Let's also print out the unknown hawkeye register to make things
a bit easier for new SoC variants.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-22 15:39:29 -08:00
Olof Johansson a6dcb26264 Second set of omap device tree changes for v4.5 merge window. This series
updates the EDMA bindings based on the various fixes to split EDMA into
 separate independent devices. It also adds support for more devices on the
 CompuLab cm-t335 and LogicPD Torpedo boards, and enables the new bindings
 for qspi for am437x and dra7. There are also few dra7 regulator fixes, and
 change of gpoi-key,wakeup to wakeup-source.
 
 These depend on commit ae0add740c ("dmaengine: edma: DT: Change reserved
 slot array from 16bit to 32bit type") already merged into mainline.
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Merge tag 'omap-for-v4.5/dt-pt2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/dt

Second set of omap device tree changes for v4.5 merge window. This series
updates the EDMA bindings based on the various fixes to split EDMA into
separate independent devices. It also adds support for more devices on the
CompuLab cm-t335 and LogicPD Torpedo boards, and enables the new bindings
for qspi for am437x and dra7. There are also few dra7 regulator fixes, and
change of gpoi-key,wakeup to wakeup-source.

These depend on commit ae0add740c ("dmaengine: edma: DT: Change reserved
slot array from 16bit to 32bit type") already merged into mainline.

* tag 'omap-for-v4.5/dt-pt2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: LogicPD Torpedo: Add Touchscreen Support
  ARM: dts: DRA7-EVM: Add regulator-allow-bypass property for ldo9
  ARM: dts: DRA72-EVM: Add regulator-allow-bypass property for ldo1 and ldo2
  ARM: dts: AM4372: add entry for qspi mmap region
  ARM: dts: DRA7: add entry for qspi mmap region
  ARM: OMAP2+: LogicPD Torpedo: Revert Duplicative Entries
  ARM: OMAP2+: LogicPD Torpedo + Wireless: Add Bluetooth
  ARM: OMAP2+: LogicPD Torpedo: Add LCD Type 15 Support
  ARM: dts: cm-t335: add support for bluetooth
  ARM: dts: cm-t335: add support for DVI/LCD
  ARM: dts: cm-t335: add support for I2C GPIO expander
  ARM: dts: cm-t335: add support for SBC-T335
  ARM: dts: cm-t335: add support for USB0
  ARM: dts: omap: replace legacy *,wakeup property with wakeup-source
  ARM: dts: am335x: replace gpio-key,wakeup with wakeup-source property
  ARM: DTS: am437x: Use the new DT bindings for the eDMA3
  ARM: DTS: am33xx: Use the new DT bindings for the eDMA3
  dmaengine: edma: DT: Change reserved slot array from 16bit to 32bit type
  dmaengine: edma: DT: Change memcpy channel array from 16bit to 32bit type

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-12-22 14:55:02 -08:00
Olof Johansson 45e2916be2 SoC changes for omaps for v4.5 merge window. The main change here is to
change the omap initcall levels a bit to initialize things later to allow
 early device drivers at core_initcall level. This makes things easier
 for us as most clocks can be made into regular device drivers except for
 a few early clocks needed to initialize system timers. I wanted to have
 these changes sit in Linux next for a few weeks before sending out a pull
 request, and so far now issues have showed up.
 
 The other changes in this series are timer changes for making use of the
 new PWM driver, and timer changes to support more high security SoCs.
 Also few minor improvments for module autoidle settings for ti81xx spinbox
 and dra7 debug on uart4 in hwmod code. The rest is pretty much just removal
 of platform data for SoCs that are all device tree only nowadays.
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Merge tag 'omap-for-v4.5/soc-initcall' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc

SoC changes for omaps for v4.5 merge window. The main change here is to
change the omap initcall levels a bit to initialize things later to allow
early device drivers at core_initcall level. This makes things easier
for us as most clocks can be made into regular device drivers except for
a few early clocks needed to initialize system timers. I wanted to have
these changes sit in Linux next for a few weeks before sending out a pull
request, and so far now issues have showed up.

The other changes in this series are timer changes for making use of the
new PWM driver, and timer changes to support more high security SoCs.
Also few minor improvments for module autoidle settings for ti81xx spinbox
and dra7 debug on uart4 in hwmod code. The rest is pretty much just removal
of platform data for SoCs that are all device tree only nowadays.

* tag 'omap-for-v4.5/soc-initcall' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Remove device creation for omap-pcm-audio
  ARM: OMAP1: Remove device creation for omap-pcm-audio
  ARM: OMAP2+: Change core_initcall levels to postcore_initcall
  ARM: DRA7: hwmod: Enable DEBUG_LL for UART4
  ARM: OMAP: RX-51: fix a typo in log writing
  ARM: omap4: hwmod: Remove elm address space from hwmod data
  ARM: OMAP2+: timer: Remove secure timer for DRA7xx HS devices
  ARM: OMAP: dmtimer: check for fixed timers during config
  ARM: OMAP2+: Remove omap_mmu_dev_attr structure
  ARM: OMAP4: hwmod data: Remove legacy IOMMU attr and addrs
  ARM: OMAP3: hwmod data: Remove legacy IOMMU data
  ARM: OMAP2+: Remove legacy device instantiation of IOMMUs
  ARM: OMAP2+: Add hwmod spinbox support for dm816x
  ARM: OMAP: add DT support for ti,dm816-timer
  ARM: OMAP: dmtimer: Add clock source from DT

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-12-22 14:49:17 -08:00
Michael Turquette b8f15e7119 Merge commit 'fe5fa8fbd4d47f40a45fa29ee1abdb10cb061ec2' into clk-next 2015-12-22 11:57:35 -08:00
Felipe Balbi 54011103fb ARM: OMAP2+: AM43xx: select ARM TWD timer
Make sure to tell the kernel that AM437x devices have ARM TWD timer.

Signed-off-by: Felipe Balbi <balbi@ti.com>
[grygorii.strashko@ti.com: drop ARM Global timer selection, because
 it's incompatible with PM (cpuidle/cpufreq). So, it's unsafe to enable
 it unconditionally]
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-17 10:54:13 -08:00
Grygorii Strashko 0b3e6fca4d ARM: OMAP2+: am43xx: enable GENERIC_CLOCKEVENTS_BROADCAST
System will misbehave in the following case:
- AM43XX only build (UP);
- CONFIG_CPU_IDLE=y
- ARM TWD timer enabled and selected as clockevent device.

In the above case, It's expected that broadcast timer will be used as
backup timer when CPUIdle will put MPU in low power states where ARM
TWD will stop and lose its context. But, the CONFIG_SMP might not be
selected when kernel is built for AM43XX SoC only and, as result,
GENERIC_CLOCKEVENTS_BROADCAST option will not be selected also. This
will break CPUIdle and System will stuck in low power states.

Hence, fix it by selecting GENERIC_CLOCKEVENTS_BROADCAST option for
AM43XX SoCs always and add empty tick_broadcast() function
implementation - no need to send any IPI on UP. After this change
timer1 will be selected as broadcast timer the same way as for SMP,
and CPUIdle will work properly.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-17 10:53:28 -08:00
Peter Ujfalusi f2e6a0a913 ARM: OMAP2+: Remove device creation for omap-pcm-audio
The omap-pcm in ASoC is no longer a platform device. No need to create this
device anymore.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-17 10:34:41 -08:00
Adam Ford 485fa1261f ARM: OMAP2+: LogicPD Torpedo + Wireless: Add Bluetooth
Bindings for the WL1283 Bluetooth was removed from the shared transport
driver in commit c0bd1b9e58 ("Revert ti-st: add device tree support")
Until we havea better binding, we need to use the platform data to
initialize Bluetooth.

Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-17 10:30:02 -08:00
Arnd Bergmann a436848cc7 Fixes for ti81xx for v4.5 merge window. We have hp t410 already booting
in mainline kernel with it's bootloader configured clocks.  However,
 trying to boot dm814x-evm uncovered all kind of issues with the timer
 clock. To keep t410 booting, these issues need to be fixed in a specific
 order and this branch contains both device tree and code changes.
 
 To summarize the changes, we had missing ranges for clocks to probe,
 missing aliase for clocks, wrong registers for divder clocks, and bad
 address for the control module. All these went unnoticed earlier as
 things worked without errors by luck and I did not pay much attention
 to them until I got hold of a dm814x-evm and I noticed it did not boot.
 
 As these are fixes for features that never worked, these can wait for
 v4.5 merge window no problem.
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Merge tag 'omap-for-v4.5/81xx-fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/fixes-non-critical

Merge "omap fixes for 81xx for v4.5 merge window" from Tony Lindgren:

Fixes for ti81xx for v4.5 merge window. We have hp t410 already booting
in mainline kernel with it's bootloader configured clocks.  However,
trying to boot dm814x-evm uncovered all kind of issues with the timer
clock. To keep t410 booting, these issues need to be fixed in a specific
order and this branch contains both device tree and code changes.

To summarize the changes, we had missing ranges for clocks to probe,
missing aliase for clocks, wrong registers for divder clocks, and bad
address for the control module. All these went unnoticed earlier as
things worked without errors by luck and I did not pay much attention
to them until I got hold of a dm814x-evm and I noticed it did not boot.

As these are fixes for features that never worked, these can wait for
v4.5 merge window no problem.

* tag 'omap-for-v4.5/81xx-fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Remove useless check for legacy booting for dm814x
  ARM: OMAP2+: Enable GPIO for dm814x
  ARM: dts: Fix dm814x pinctrl address and mask
  ARM: dts: Fix dm8148 control modules ranges
  ARM: OMAP2+: Fix timer entries for dm814x
  ARM: dts: Fix some mux and divider clocks to get dm814x-evm booting
  ARM: OMAP2+: Add DPPLS clock manager for dm814x
  clk: ti: Add few dm814x clock aliases
  ARM: dts: Fix dm814x entries for pllss and prcm
2015-12-16 00:14:25 +01:00
Tony Lindgren d893656e61 ARM: OMAP2+: Remove useless check for legacy booting for dm814x
We have never had dm814x booting properly with mainline kernel using
the legacy platform data based booting. Current minimal support is
device tree only.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-09 16:53:46 -08:00
Tony Lindgren 3022b29df6 ARM: OMAP2+: Enable GPIO for dm814x
With the basic clocks now working we can enable GPIO.

Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-09 16:53:46 -08:00
Tony Lindgren cb4db0381a ARM: OMAP2+: Fix timer entries for dm814x
There's a mux after the oscillator similar to am335x. I did not
notice this on hp t410 as it boots even with no clocks configured.

Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-09 16:53:46 -08:00
Tony Lindgren 4e34df0cba ARM: OMAP2+: Add DPPLS clock manager for dm814x
On dm814x we have some clocks at DPLLS and some at PRCM. Let's add a new
omap_prcm_init_data entry for the DPLLS so we can initalize timer clocks
early.

Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-09 16:53:46 -08:00
Tony Lindgren 71842a74f9 Merge branch 'omap-for-v4.5/initcall' into omap-for-v4.5/soc-v2 2015-12-03 11:41:28 -08:00
Tony Lindgren 8dd5ea72b0 ARM: OMAP2+: Change core_initcall levels to postcore_initcall
We want to be able to probe a few selected device drivers before hwmod
code populates the clocks in omap_hwmod_setup_all(). This allows us to
convert most of the clock drivers into regular device drivers.

We only need a few minimal clock drivers early for the system timers to
select between the 32KiHz clock and the high frequency oscillator.

With these changes, initializing the clock drivers can be just done at
core_initcall time with something like:

np = of_find_node_by_name(NULL, "plls");
if (np)
	of_platform_populate(np, NULL, NULL, NULL);

And then these clocks will be available for the interconnect code to use.

Having most of the clock drivers being regular device drivers allows
us to use the nice things like devm_* functions and dev_err and dev_dbg.
As an extra bonus, this also allows us to develop the clock drivers for
new SoCs as loadable modules initially for cases where we can boot up
the system based on the bootloader configured clocks.

To do this, let's change the core_initcalls to postcore_initcall under
mach-omap2.

Cc: Felipe Balbi <balbi@ti.com>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-03 11:38:09 -08:00
Masahiro Yamada 75305275a7 ARM: use const and __initconst for smp_operations
These smp_operations structures are not over-written, so add "const"
qualifier and replace __initdata with __initconst.

Also, add "static" where it is possible.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Moritz Fischer <moritz.fischer@ettus.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org> # qcom part
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Wei Xu <xuwei5@hisilicon.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Acked-by: Matthias Brugger <matthias.bgg@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-12-01 22:17:45 +01:00
Grygorii Strashko fc82792851 ARM: OMAP2+: enable REGULATOR_FIXED_VOLTAGE
Enable REGULATOR_FIXED_VOLTAGE for all OMAP2+ platforms
otherwise system can't boot from SD-card when kernel is
built for single SoC (for example, with CONFIG_SOC_DRA7XX=y only).

It's also required for almost all TI SoC's platforms.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-11-30 14:38:05 -08:00
J.D. Schroeder b03408500e ARM: DRA7: hwmod: Enable DEBUG_LL for UART4
UART4 low level debug support. This helps in debugging with UART4
serial console output on DRA7 based platforms.

Extending the following fix for UART4.
commit 1c7e36bfc3 ("ARM: DRA7: hwmod: Fix boot crash with DEBUG_LL enabled on UART3")

For using DEBUG_LL, enable CONFIG_DEBUG_OMAP4UART4 in menuconfig.
On DRA7, UART4 hwmod doesn't have this flag enabled,
failure observed when UART4 is used for low level debugging.

Hence, Enable DEBUG_OMAP4UART4_FLAGS for UART4 hwmod.

Signed-off-by: J.D. Schroeder <jay.schroeder@garmin.com>
Signed-off-by: Praneeth Bajjuri <praneeth@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-11-30 14:19:31 -08:00
Aaro Koskinen 448f8bc69f ARM: OMAP: RX-51: fix a typo in log writing
Fix a typo when registering HW RNG.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-11-30 14:11:35 -08:00
Franklin S Cooper Jr c9fbaa4997 ARM: omap4: hwmod: Remove elm address space from hwmod data
ELM address information is provided by device tree. No longer need
to include this information within hwmod.

This patch has only been boot tested.

Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-11-30 13:18:37 -08:00
Suman Anna ed5a4c6248 ARM: OMAP2+: timer: Remove secure timer for DRA7xx HS devices
Timer 12 on DRA7 SoCs is reserved for secure usage on high-secure (HS)
devices. The timer cannot be used by the kernel on HS devices, but is
available on regular general purpose (GP) devices. This is similar to the
behavior on OMAP3 devices, so extend the logic used in commit ad24bde8f1
("ARM: OMAP3: Dynamically disable secure timer nodes for secure devices")
to remove the secure timer on DRA7xx SoCs at run-time based on the SoC
device type.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-11-30 13:18:23 -08:00
Tero Kristo 07ff73a932 clk: ti: omap5+: dpll: implement errata i810
Errata i810 states that DPLL controller can get stuck while transitioning
to a power saving state, while its M/N ratio is being re-programmed.

As a workaround, before re-programming the M/N ratio, SW has to ensure
the DPLL cannot start an idle state transition. SW can disable DPLL
idling by setting the DPLL AUTO_DPLL_MODE=0 or keeping a clock request
active by setting a dependent clock domain in SW_WKUP.

This errata impacts OMAP5 and DRA7 chips, so enable the errata for these.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-11-30 11:34:17 -08:00
Suman Anna 1ad0ea0c65 ARM: OMAP4: hwmod data: Remove legacy IOMMU attr and addrs
OMAP4 has been DT-boot only for some time, and the legacy-mode
device creation logic for IOMMU devices has also been cleaned up,
so the dev_attr and address data is no longer required. So, remove
these attribute data and hwmod addr space for the IPU & DSP IOMMU
devices.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-11-30 10:35:07 -08:00
Suman Anna 621062f49b ARM: OMAP3: hwmod data: Remove legacy IOMMU data
The legacy-mode device creation logic for IOMMU devices has
been cleaned up, so the device attribute data, irq information
and address data are no longer required. Remove all of these
data for the ISP & IVA IOMMU devices.

Signed-off-by: Suman Anna <s-anna@ti.com>
[tony@atomide.com: updated to apply for the include]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-11-30 10:35:07 -08:00
Suman Anna dd20b0d5c7 ARM: OMAP2+: Remove legacy device instantiation of IOMMUs
The legacy-style IOMMU device creation is maintained currently only
for OMAP3 SoC, as all other SoCs are DT-boot only, and also to ensure
functionality of the OMAP3 ISP driver, the only in-kernel client user
on OMAP3 that supported both modes.

Commit 78c66fbcec ("[media] v4l: omap3isp: Drop platform data support")
removed the legacy device support from the OMAP3 ISP driver, so the
legacy device instantiation of OMAP IOMMU devices is no longer
needed, and is cleaned up.

Signed-off-by: Suman Anna <s-anna@ti.com>
[tony@atomide.com: updated to remove also the Makefile entry]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-11-30 10:35:07 -08:00
Neil Armstrong 1539569bc9 ARM: OMAP2+: Add hwmod spinbox support for dm816x
Add dm81xx hwmod data entries for dm816x spinbox support.

Cc: Brian Hutchinson <b.hutchman@gmail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-11-30 10:35:07 -08:00
Grygorii Strashko 918af9f941 ARM: OMAP4+: SMP: use lockless clkdm/pwrdm api in omap4_boot_secondary
OMAP CPU hotplug uses cpu1's clocks and power domains for CPU1 wake up
from low power states (or turn on CPU1). This part of code is also
part of system suspend (disable_nonboot_cpus()).
>From other side, cpu1's clocks and power domains are used by CPUIdle. All above
functionality is mutually exclusive and, therefore, lockless clkdm/pwrdm api
can be used in omap4_boot_secondary().

This fixes below back-trace on -RT which is triggered by
pwrdm_lock/unlock():

BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:917
 in_atomic(): 1, irqs_disabled(): 0, pid: 118, name: sh
 9 locks held by sh/118:
  #0:  (sb_writers#4){.+.+.+}, at: [<c0144a6c>] vfs_write+0x13c/0x164
  #1:  (&of->mutex){+.+.+.}, at: [<c01b4c70>] kernfs_fop_write+0x48/0x19c
  #2:  (s_active#24){.+.+.+}, at: [<c01b4c78>] kernfs_fop_write+0x50/0x19c
  #3:  (device_hotplug_lock){+.+.+.}, at: [<c03cbff0>] lock_device_hotplug_sysfs+0xc/0x4c
  #4:  (&dev->mutex){......}, at: [<c03cd284>] device_online+0x14/0x88
  #5:  (cpu_add_remove_lock){+.+.+.}, at: [<c003af90>] cpu_up+0x50/0x1a0
  #6:  (cpu_hotplug.lock){++++++}, at: [<c003ae48>] cpu_hotplug_begin+0x0/0xc4
  #7:  (cpu_hotplug.lock#2){+.+.+.}, at: [<c003aec0>] cpu_hotplug_begin+0x78/0xc4
  #8:  (boot_lock){+.+...}, at: [<c002b254>] omap4_boot_secondary+0x1c/0x178
 Preemption disabled at:[<  (null)>]   (null)

 CPU: 0 PID: 118 Comm: sh Not tainted 4.1.12-rt11-01998-gb4a62c3-dirty #137
 Hardware name: Generic DRA74X (Flattened Device Tree)
 [<c0017574>] (unwind_backtrace) from [<c0013be8>] (show_stack+0x10/0x14)
 [<c0013be8>] (show_stack) from [<c05a8670>] (dump_stack+0x80/0x94)
 [<c05a8670>] (dump_stack) from [<c05ad158>] (rt_spin_lock+0x24/0x54)
 [<c05ad158>] (rt_spin_lock) from [<c0030dac>] (clkdm_wakeup+0x10/0x2c)
 [<c0030dac>] (clkdm_wakeup) from [<c002b2c0>] (omap4_boot_secondary+0x88/0x178)
 [<c002b2c0>] (omap4_boot_secondary) from [<c0015d00>] (__cpu_up+0xc4/0x164)
 [<c0015d00>] (__cpu_up) from [<c003b09c>] (cpu_up+0x15c/0x1a0)
 [<c003b09c>] (cpu_up) from [<c03cd2d4>] (device_online+0x64/0x88)
 [<c03cd2d4>] (device_online) from [<c03cd360>] (online_store+0x68/0x74)
 [<c03cd360>] (online_store) from [<c01b4ce0>] (kernfs_fop_write+0xb8/0x19c)
 [<c01b4ce0>] (kernfs_fop_write) from [<c0144124>] (__vfs_write+0x20/0xd8)
 [<c0144124>] (__vfs_write) from [<c01449c0>] (vfs_write+0x90/0x164)
 [<c01449c0>] (vfs_write) from [<c01451e4>] (SyS_write+0x44/0x9c)
 [<c01451e4>] (SyS_write) from [<c0010240>] (ret_fast_syscall+0x0/0x54)
 CPU1: smp_ops.cpu_die() returned, trying to resuscitate

Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-11-25 11:03:20 -08:00
Tony Lindgren 970259bff4 Merge branch '81xx' into omap-for-v4.4/fixes 2015-11-25 10:56:40 -08:00
Neil Armstrong 29f5b34ca1 arm: omap2+: add missing HWMOD_NO_IDLEST in 81xx hwmod data
Add missing HWMOD_NO_IDLEST hwmod flag for entries not
having omap4 clkctrl values.
The emac0 hwmod flag fixes the davinci_emac driver probe
since the return of pm_resume() call is now checked.

This solves the following boot errors :
[    0.121429] omap_hwmod: l4_ls: _wait_target_ready failed: -16
[    0.121441] omap_hwmod: l4_ls: cannot be enabled for reset (3)
[    0.124342] omap_hwmod: l4_hs: _wait_target_ready failed: -16
[    0.124352] omap_hwmod: l4_hs: cannot be enabled for reset (3)
[    1.967228] omap_hwmod: emac0: _wait_target_ready failed: -16

Cc: Brian Hutchinson <b.hutchman@gmail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-11-25 10:54:22 -08:00
Mauro Carvalho Chehab eb4b0ec75e [media] include/media: move platform_data to linux/platform_data/media
Let's not mix platform_data headers with the core headers. Instead, let's
create a subdir at linux/platform_data and move the headers to that
common place, adding it to MAINTAINERS.

The headers were moved with:
	mkdir include/linux/platform_data/media/; git mv include/media/gpio-ir-recv.h include/media/ir-rx51.h include/media/mmp-camera.h include/media/omap1_camera.h include/media/omap4iss.h include/media/s5p_hdmi.h include/media/si4713.h include/media/sii9234.h include/media/smiapp.h include/media/soc_camera.h include/media/soc_camera_platform.h include/media/timb_radio.h include/media/timb_video.h include/linux/platform_data/media/

And the references fixed with this script:
    MAIN_DIR="linux/platform_data/"
    PREV_DIR="media/"
    DIRS="media/"

    echo "Checking affected files" >&2
    for i in $DIRS; do
	for j in $(find include/$MAIN_DIR/$i -type f -name '*.h'); do
		 n=`basename $j`
		git grep -l $n
	done
    done|sort|uniq >files && (
	echo "Handling files..." >&2;
	echo "for i in \$(cat files|grep -v Documentation); do cat \$i | \\";
	(
		cd include/$MAIN_DIR;
		for j in $DIRS; do
			for i in $(ls $j); do
				echo "perl -ne 's,(include [\\\"\\<])$PREV_DIR($i)([\\\"\\>]),\1$MAIN_DIR$j\2\3,; print \$_' |\\";
			done;
		done;
		echo "cat > a && mv a \$i; done";
	);
	echo "Handling documentation..." >&2;
	echo "for i in MAINTAINERS \$(cat files); do cat \$i | \\";
	(
		cd include/$MAIN_DIR;
		for j in $DIRS; do
			for i in $(ls $j); do
				echo "  perl -ne 's,include/$PREV_DIR($i)\b,include/$MAIN_DIR$j\1,; print \$_' |\\";
			done;
		done;
		echo "cat > a && mv a \$i; done"
	);
    ) >script && . ./script

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2015-11-17 06:58:42 -02:00
Lucas Stach 9b1b61cd8e ARM: OMAP2+: remove custom abort handler for t410
This is not needed anymore. Handling a potentially pending imprecise external
abort left behind by the bootloader is now done in a slightly safer way inside
the common ARM startup code.

With the recent changes to abort handling, this issue got fixed by 57df538085
("ARM: OMAP2+: Fix imprecise external abort caused by bogus SRAM init").

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
[tony@atomide.com: updated comments to describe what fixed the issue]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-11-12 10:02:05 -08:00
Tony Lindgren ff6d03b9d9 Merge branch 'x15-audio-fixes' into omap-for-v4.4/fixes 2015-11-12 09:58:21 -08:00
Peter Ujfalusi 469689a45f ARM: OMAP: DRA7: hwmod: Add data for McASP3
McASP3 is used by default on DRA7x based boards for audio.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-11-12 09:57:44 -08:00
Peter Ujfalusi c12ba8ce23 ARM: OMAP2+: hwmod: Add hwmod flag for HWMOD_OPT_CLKS_NEEDED
Some module needs more than one functional clock in order to be accessible,
like the McASPs found in DRA7xx family.
This flag will indicate that the opt_clks need to be handled at the same
time as the main_clk for the given hwmod, ensuring that all needed clocks
are enabled before we try to access the module's address space.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-11-12 09:57:44 -08:00
Linus Torvalds a5e1d715a8 ARM: SoC cleanups for v4.4
Again we have a sizable (but not huge) cleanup branch with a net delta of about
 -3k lines.
 
 Main contents here is:
 
  - A bunch of development/cleanup of a few PXA boards
  - Removal of bockw platforms on shmobile, since the platform has now gone
    completely multiplatform. Whee!
  - move of the 32kHz timer on OMAP to a proper timesource
  - Misc cleanup of older OMAP material (incl removal of one board file)
  - Switch over to new common PWM lookup support for several platforms
 
 There's also a handful of other cleanups across the tree, but the above are
 the major pieces.
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Merge tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanups from Olof Johansson:
 "Again we have a sizable (but not huge) cleanup branch with a net delta
  of about -3k lines.

  Main contents here is:

   - A bunch of development/cleanup of a few PXA boards
   - Removal of bockw platforms on shmobile, since the platform has now
     gone completely multiplatform.  Whee!
   - move of the 32kHz timer on OMAP to a proper timesource
   - Misc cleanup of older OMAP material (incl removal of one board
     file)
   - Switch over to new common PWM lookup support for several platforms

  There's also a handful of other cleanups across the tree, but the
  above are the major pieces"

* tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (103 commits)
  ARM: OMAP3: hwmod data: Remove legacy mailbox data and addrs
  ARM: DRA7: hwmod data: Remove spinlock hwmod addrs
  ARM: OMAP4: hwmod data: Remove spinlock hwmod addrs
  ARM: DRA7/AM335x/AM437x: hwmod: Remove gpmc address space from hwmod data
  ARM: Remove __ref on hotplug cpu die path
  ARM: Remove open-coded version of IRQCHIP_DECLARE
  arm: omap2: board-generic: use omap4_local_timer_init for AM437x
  ARM: DRA7/AM335x/AM437x: hwmod: Remove elm address space from hwmod data
  ARM: OMAP: Remove duplicated operand in OR operation
  clocksource: ti-32k: make it depend on GENERIC_CLOCKSOURCE
  ARM: pxa: remove incorrect __init annotation on pxa27x_set_pwrmode
  ARM: pxa: raumfeld: make some variables static
  ARM: OMAP: Change all cpu_is_* occurences to soc_is_* for id.c
  ARM: OMAP2+: Rename cpu_is macros to soc_is
  arm: omap2: timer: limit hwmod usage to non-DT boots
  arm: omap2+: select 32k clocksource driver
  clocksource: add TI 32.768 Hz counter driver
  arm: omap2: timer: rename omap_sync32k_timer_init()
  arm: omap2: timer: always call clocksource_of_init() when DT
  arm: omap2: timer: move realtime_counter_init() around
  ...
2015-11-10 14:48:36 -08:00
Linus Torvalds 041c79514a dmaengine updates for 4.4-rc1
This time we have a very typical update which is mostly fixes and updates to
 drivers and no new drivers.
 
 - Biggest change is coming from Peter for edma cleanup which even caused
   some last minute regression, things seem settled now
 - idma64 and dw updates
 - iotdma updates
 - module autoload fixes for various drivers
 - scatter gather support for hdmac
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Merge tag 'dmaengine-4.4-rc1' of git://git.infradead.org/users/vkoul/slave-dma

Pull dmaengine updates from Vinod Koul:
 "This time we have a very typical update which is mostly fixes and
  updates to drivers and no new drivers.

   - the biggest change is coming from Peter for edma cleanup which even
     caused some last minute regression, things seem settled now
   - idma64 and dw updates
   - iotdma updates
   - module autoload fixes for various drivers
   - scatter gather support for hdmac"

* tag 'dmaengine-4.4-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (77 commits)
  dmaengine: edma: Add dummy driver skeleton for edma3-tptc
  Revert "ARM: DTS: am33xx: Use the new DT bindings for the eDMA3"
  Revert "ARM: DTS: am437x: Use the new DT bindings for the eDMA3"
  dmaengine: dw: some Intel devices has no memcpy support
  dmaengine: dw: platform: provide platform data for Intel
  dmaengine: dw: don't override platform data with autocfg
  dmaengine: hdmac: Add scatter-gathered memset support
  dmaengine: hdmac: factorise memset descriptor allocation
  dmaengine: virt-dma: Fix kernel-doc annotations
  ARM: DTS: am437x: Use the new DT bindings for the eDMA3
  ARM: DTS: am33xx: Use the new DT bindings for the eDMA3
  dmaengine: edma: New device tree binding
  dmaengine: Kconfig: edma: Select TI_DMA_CROSSBAR in case of ARCH_OMAP
  dmaengine: ti-dma-crossbar: Add support for crossbar on AM33xx/AM43xx
  dmaengine: edma: Merge the of parsing functions
  dmaengine: edma: Do not allocate memory for edma_rsv_info in case of DT boot
  dmaengine: edma: Refactor the dma device and channel struct initialization
  dmaengine: edma: Get qDMA channel information from HW also
  dmaengine: edma: Merge map_dmach_to_queue into assign_channel_eventq
  dmaengine: edma: Correct PaRAM access function names (_parm_ to _param_)
  ...
2015-11-10 10:05:17 -08:00
Linus Torvalds 0d51ce9ca1 Power management and ACPI updates for v4.4-rc1
- ACPICA update to upstream revision 20150930 (Bob Moore, Lv Zheng).
 
    The most significant change is to allow the AML debugger to be
    built into the kernel.  On top of that there is an update related
    to the NFIT table (the ACPI persistent memory interface)
    and a few fixes and cleanups.
 
  - ACPI CPPC2 (Collaborative Processor Performance Control v2)
    support along with a cpufreq frontend (Ashwin Chaugule).
 
    This can only be enabled on ARM64 at this point.
 
  - New ACPI infrastructure for the early probing of IRQ chips and
    clock sources (Marc Zyngier).
 
  - Support for a new hierarchical properties extension of the ACPI
    _DSD (Device Specific Data) device configuration object allowing
    the kernel to handle hierarchical properties (provided by the
    platform firmware this way) automatically and make them available
    to device drivers via the generic device properties interface
    (Rafael Wysocki).
 
  - Generic device properties API extension to obtain an index of
    certain string value in an array of strings, along the lines of
    of_property_match_string(), but working for all of the supported
    firmware node types, and support for the "dma-names" device
    property based on it (Mika Westerberg).
 
  - ACPI core fix to parse the MADT (Multiple APIC Description Table)
    entries in the order expected by platform firmware (and mandated
    by the specification) to avoid confusion on systems with more than
    255 logical CPUs (Lukasz Anaczkowski).
 
  - Consolidation of the ACPI-based handling of PCI host bridges
    on x86 and ia64 (Jiang Liu).
 
  - ACPI core fixes to ensure that the correct IRQ number is used to
    represent the SCI (System Control Interrupt) in the cases when
    it has been re-mapped (Chen Yu).
 
  - New ACPI backlight quirk for Lenovo IdeaPad S405 (Hans de Goede).
 
  - ACPI EC driver fixes (Lv Zheng).
 
  - Assorted ACPI fixes and cleanups (Dan Carpenter, Insu Yun, Jiri
    Kosina, Rami Rosen, Rasmus Villemoes).
 
  - New mechanism in the PM core allowing drivers to check if the
    platform firmware is going to be involved in the upcoming system
    suspend or if it has been involved in the suspend the system is
    resuming from at the moment (Rafael Wysocki).
 
    This should allow drivers to optimize their suspend/resume
    handling in some cases and the changes include a couple of users
    of it (the i8042 input driver, PCI PM).
 
  - PCI PM fix to prevent runtime-suspended devices with PME enabled
    from being resumed during system suspend even if they aren't
    configured to wake up the system from sleep (Rafael Wysocki).
 
  - New mechanism to report the number of a wakeup IRQ that woke up
    the system from sleep last time (Alexandra Yates).
 
  - Removal of unused interfaces from the generic power domains
    framework and fixes related to latency measurements in that
    code (Ulf Hansson, Daniel Lezcano).
 
  - cpufreq core sysfs interface rework to make it handle CPUs that
    share performance scaling settings (represented by a common
    cpufreq policy object) more symmetrically (Viresh Kumar).
 
    This should help to simplify the CPU offline/online handling among
    other things.
 
  - cpufreq core fixes and cleanups (Viresh Kumar).
 
  - intel_pstate fixes related to the Turbo Activation Ratio (TAR)
    mechanism on client platforms which causes the turbo P-states
    range to vary depending on platform firmware settings (Srinivas
    Pandruvada).
 
  - intel_pstate sysfs interface fix (Prarit Bhargava).
 
  - Assorted cpufreq driver (imx, tegra20, powernv, integrator) fixes
    and cleanups (Bai Ping, Bartlomiej Zolnierkiewicz, Shilpasri G
    Bhat, Luis de Bethencourt).
 
  - cpuidle mvebu driver cleanups (Russell King).
 
  - OPP (Operating Performance Points) framework code reorganization
    to make it more maintainable (Viresh Kumar).
 
  - Intel Broxton support for the RAPL (Running Average Power Limits)
    power capping driver (Amy Wiles).
 
  - Assorted power management code fixes and cleanups (Dan Carpenter,
    Geert Uytterhoeven, Geliang Tang, Luis de Bethencourt, Rasmus
    Villemoes).
 
 /
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Merge tag 'pm+acpi-4.4-rc1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management and ACPI updates from Rafael Wysocki:
 "Quite a new features are included this time.

  First off, the Collaborative Processor Performance Control interface
  (version 2) defined by ACPI will now be supported on ARM64 along with
  a cpufreq frontend for CPU performance scaling.

  Second, ACPI gets a new infrastructure for the early probing of IRQ
  chips and clock sources (along the lines of the existing similar
  mechanism for DT).

  Next, the ACPI core and the generic device properties API will now
  support a recently introduced hierarchical properties extension of the
  _DSD (Device Specific Data) ACPI device configuration object.  If the
  ACPI platform firmware uses that extension to organize device
  properties in a hierarchical way, the kernel will automatically handle
  it and make those properties available to device drivers via the
  generic device properties API.

  It also will be possible to build the ACPICA's AML interpreter
  debugger into the kernel now and use that to diagnose AML-related
  problems more efficiently.  In the future, this should make it
  possible to single-step AML execution and do similar things.
  Interesting stuff, although somewhat experimental at this point.

  Finally, the PM core gets a new mechanism that can be used by device
  drivers to distinguish between suspend-to-RAM (based on platform
  firmware support) and suspend-to-idle (or other variants of system
  suspend the platform firmware is not involved in) and possibly
  optimize their device suspend/resume handling accordingly.

  In addition to that, some existing features are re-organized quite
  substantially.

  First, the ACPI-based handling of PCI host bridges on x86 and ia64 is
  unified and the common code goes into the ACPI core (so as to reduce
  code duplication and eliminate non-essential differences between the
  two architectures in that area).

  Second, the Operating Performance Points (OPP) framework is
  reorganized to make the code easier to find and follow.

  Next, the cpufreq core's sysfs interface is reorganized to get rid of
  the "primary CPU" concept for configurations in which the same
  performance scaling settings are shared between multiple CPUs.

  Finally, some interfaces that aren't necessary any more are dropped
  from the generic power domains framework.

  On top of the above we have some minor extensions, cleanups and bug
  fixes in multiple places, as usual.

  Specifics:

   - ACPICA update to upstream revision 20150930 (Bob Moore, Lv Zheng).

     The most significant change is to allow the AML debugger to be
     built into the kernel.  On top of that there is an update related
     to the NFIT table (the ACPI persistent memory interface) and a few
     fixes and cleanups.

   - ACPI CPPC2 (Collaborative Processor Performance Control v2) support
     along with a cpufreq frontend (Ashwin Chaugule).

     This can only be enabled on ARM64 at this point.

   - New ACPI infrastructure for the early probing of IRQ chips and
     clock sources (Marc Zyngier).

   - Support for a new hierarchical properties extension of the ACPI
     _DSD (Device Specific Data) device configuration object allowing
     the kernel to handle hierarchical properties (provided by the
     platform firmware this way) automatically and make them available
     to device drivers via the generic device properties interface
     (Rafael Wysocki).

   - Generic device properties API extension to obtain an index of
     certain string value in an array of strings, along the lines of
     of_property_match_string(), but working for all of the supported
     firmware node types, and support for the "dma-names" device
     property based on it (Mika Westerberg).

   - ACPI core fix to parse the MADT (Multiple APIC Description Table)
     entries in the order expected by platform firmware (and mandated by
     the specification) to avoid confusion on systems with more than 255
     logical CPUs (Lukasz Anaczkowski).

   - Consolidation of the ACPI-based handling of PCI host bridges on x86
     and ia64 (Jiang Liu).

   - ACPI core fixes to ensure that the correct IRQ number is used to
     represent the SCI (System Control Interrupt) in the cases when it
     has been re-mapped (Chen Yu).

   - New ACPI backlight quirk for Lenovo IdeaPad S405 (Hans de Goede).

   - ACPI EC driver fixes (Lv Zheng).

   - Assorted ACPI fixes and cleanups (Dan Carpenter, Insu Yun, Jiri
     Kosina, Rami Rosen, Rasmus Villemoes).

   - New mechanism in the PM core allowing drivers to check if the
     platform firmware is going to be involved in the upcoming system
     suspend or if it has been involved in the suspend the system is
     resuming from at the moment (Rafael Wysocki).

     This should allow drivers to optimize their suspend/resume handling
     in some cases and the changes include a couple of users of it (the
     i8042 input driver, PCI PM).

   - PCI PM fix to prevent runtime-suspended devices with PME enabled
     from being resumed during system suspend even if they aren't
     configured to wake up the system from sleep (Rafael Wysocki).

   - New mechanism to report the number of a wakeup IRQ that woke up the
     system from sleep last time (Alexandra Yates).

   - Removal of unused interfaces from the generic power domains
     framework and fixes related to latency measurements in that code
     (Ulf Hansson, Daniel Lezcano).

   - cpufreq core sysfs interface rework to make it handle CPUs that
     share performance scaling settings (represented by a common cpufreq
     policy object) more symmetrically (Viresh Kumar).

     This should help to simplify the CPU offline/online handling among
     other things.

   - cpufreq core fixes and cleanups (Viresh Kumar).

   - intel_pstate fixes related to the Turbo Activation Ratio (TAR)
     mechanism on client platforms which causes the turbo P-states range
     to vary depending on platform firmware settings (Srinivas
     Pandruvada).

   - intel_pstate sysfs interface fix (Prarit Bhargava).

   - Assorted cpufreq driver (imx, tegra20, powernv, integrator) fixes
     and cleanups (Bai Ping, Bartlomiej Zolnierkiewicz, Shilpasri G
     Bhat, Luis de Bethencourt).

   - cpuidle mvebu driver cleanups (Russell King).

   - OPP (Operating Performance Points) framework code reorganization to
     make it more maintainable (Viresh Kumar).

   - Intel Broxton support for the RAPL (Running Average Power Limits)
     power capping driver (Amy Wiles).

   - Assorted power management code fixes and cleanups (Dan Carpenter,
     Geert Uytterhoeven, Geliang Tang, Luis de Bethencourt, Rasmus
     Villemoes)"

* tag 'pm+acpi-4.4-rc1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (108 commits)
  cpufreq: postfix policy directory with the first CPU in related_cpus
  cpufreq: create cpu/cpufreq/policyX directories
  cpufreq: remove cpufreq_sysfs_{create|remove}_file()
  cpufreq: create cpu/cpufreq at boot time
  cpufreq: Use cpumask_copy instead of cpumask_or to copy a mask
  cpufreq: ondemand: Drop unnecessary locks from update_sampling_rate()
  PM / Domains: Merge measurements for PM QoS device latencies
  PM / Domains: Don't measure ->start|stop() latency in system PM callbacks
  PM / clk: Fix broken build due to non-matching code and header #ifdefs
  ACPI / Documentation: add copy_dsdt to ACPI format options
  ACPI / sysfs: correctly check failing memory allocation
  ACPI / video: Add a quirk to force native backlight on Lenovo IdeaPad S405
  ACPI / CPPC: Fix potential memory leak
  ACPI / CPPC: signedness bug in register_pcc_channel()
  ACPI / PAD: power_saving_thread() is not freezable
  ACPI / PM: Fix incorrect wakeup IRQ setting during suspend-to-idle
  ACPI: Using correct irq when waiting for events
  ACPI: Use correct IRQ when uninstalling ACPI interrupt handler
  cpuidle: mvebu: disable the bind/unbind attributes and use builtin_platform_driver
  cpuidle: mvebu: clean up multiple platform drivers
  ...
2015-11-04 18:10:13 -08:00
Linus Torvalds 6aa2fdb87c Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner:
 "The irq departement delivers:

   - Rework the irqdomain core infrastructure to accomodate ACPI based
     systems.  This is required to support ARM64 without creating
     artificial device tree nodes.

   - Sanitize the ACPI based ARM GIC initialization by making use of the
     new firmware independent irqdomain core

   - Further improvements to the generic MSI management

   - Generalize the irq migration on CPU hotplug

   - Improvements to the threaded interrupt infrastructure

   - Allow the migration of "chained" low level interrupt handlers

   - Allow optional force masking of interrupts in disable_irq[_nosysnc]

   - Support for two new interrupt chips - Sigh!

   - A larger set of errata fixes for ARM gicv3

   - The usual pile of fixes, updates, improvements and cleanups all
     over the place"

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (71 commits)
  Document that IRQ_NONE should be returned when IRQ not actually handled
  PCI/MSI: Allow the MSI domain to be device-specific
  PCI: Add per-device MSI domain hook
  of/irq: Use the msi-map property to provide device-specific MSI domain
  of/irq: Split of_msi_map_rid to reuse msi-map lookup
  irqchip/gic-v3-its: Parse new version of msi-parent property
  PCI/MSI: Use of_msi_get_domain instead of open-coded "msi-parent" parsing
  of/irq: Use of_msi_get_domain instead of open-coded "msi-parent" parsing
  of/irq: Add support code for multi-parent version of "msi-parent"
  irqchip/gic-v3-its: Add handling of PCI requester id.
  PCI/MSI: Add helper function pci_msi_domain_get_msi_rid().
  of/irq: Add new function of_msi_map_rid()
  Docs: dt: Add PCI MSI map bindings
  irqchip/gic-v2m: Add support for multiple MSI frames
  irqchip/gic-v3: Fix translation of LPIs after conversion to irq_fwspec
  irqchip/mxs: Add Alphascale ASM9260 support
  irqchip/mxs: Prepare driver for hardware with different offsets
  irqchip/mxs: Panic if ioremap or domain creation fails
  irqdomain: Documentation updates
  irqdomain/msi: Use fwnode instead of of_node
  ...
2015-11-03 14:40:01 -08:00
Olof Johansson d3dc3df633 Minimal omap SoC changes for v4.4 merge window. As we've spent quite a
bit of time sorting out regressions for v4.3 and are very late with
 these, I've kept the changes down to minimum:
 
 - A series of timer changes from Felipe Balbi to get us closer to
   moving the remaining timer code into drivers
 
 - A series of hwmod clean-up changes queued by Paul Walmsley
 
 - SoC detection clean-up to use soc_is instead of cpu_is as CPU is
   within the SoC and is confusing naming. The rest we can now change
   along with the other clean-up
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Merge tag 'omap-for-v4.4/soc-clean-up' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup

Minimal omap SoC changes for v4.4 merge window. As we've spent quite a
bit of time sorting out regressions for v4.3 and are very late with
these, I've kept the changes down to minimum:

- A series of timer changes from Felipe Balbi to get us closer to
  moving the remaining timer code into drivers

- A series of hwmod clean-up changes queued by Paul Walmsley

- SoC detection clean-up to use soc_is instead of cpu_is as CPU is
  within the SoC and is confusing naming. The rest we can now change
  along with the other clean-up

* tag 'omap-for-v4.4/soc-clean-up' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (21 commits)
  ARM: OMAP3: hwmod data: Remove legacy mailbox data and addrs
  ARM: DRA7: hwmod data: Remove spinlock hwmod addrs
  ARM: OMAP4: hwmod data: Remove spinlock hwmod addrs
  ARM: DRA7/AM335x/AM437x: hwmod: Remove gpmc address space from hwmod data
  arm: omap2: board-generic: use omap4_local_timer_init for AM437x
  ARM: DRA7/AM335x/AM437x: hwmod: Remove elm address space from hwmod data
  ARM: OMAP: Remove duplicated operand in OR operation
  clocksource: ti-32k: make it depend on GENERIC_CLOCKSOURCE
  ARM: OMAP: Change all cpu_is_* occurences to soc_is_* for id.c
  ARM: OMAP2+: Rename cpu_is macros to soc_is
  arm: omap2: timer: limit hwmod usage to non-DT boots
  arm: omap2+: select 32k clocksource driver
  clocksource: add TI 32.768 Hz counter driver
  arm: omap2: timer: rename omap_sync32k_timer_init()
  arm: omap2: timer: always call clocksource_of_init() when DT
  arm: omap2: timer: move realtime_counter_init() around
  arm: omap2: timer: provide generic sync32k_timer_init function
  arm: omap2: timer: remove __omap_gptimer_init()
  arm: omap2: timer: add a gptimer argument to sync32k_timer_init()
  arm: omap2: timer: get rid of obfuscating macros
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-10-26 14:35:41 +09:00
Rafael J. Wysocki e3ed766b49 Merge branch 'acpi-init'
* acpi-init:
  clocksource: cosmetic: Drop OF 'dependency' from symbols
  clocksource / arm_arch_timer: Convert to ACPI probing
  clocksource: Add new CLKSRC_{PROBE,ACPI} config symbols
  clocksource / ACPI: Add probing infrastructure for ACPI-based clocksources
  irqchip / GIC: Convert the GIC driver to ACPI probing
  irqchip / ACPI: Add probing infrastructure for ACPI-based irqchips
  ACPI: Add early device probing infrastructure
2015-10-25 22:55:14 +01:00
Tony Lindgren ef4da0c1c8 ARM: OMAP2+: hwmod cleanup for v4.4
Remove some superfluous data from the OMAP2+ hwmod data files.  Mostly
 this is a result of data being moved to DT files.  Nothing too
 controversial, here.
 
 Basic build, boot, and PM test results are available here:
 
 http://www.pwsan.com/omap/testlogs/hwmod-cleanup-a-for-v4.4/20151023130140/
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Merge tag 'for-v4.4/omap-hwmod-cleanup-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v4.4/soc

ARM: OMAP2+: hwmod cleanup for v4.4

Remove some superfluous data from the OMAP2+ hwmod data files.  Mostly
this is a result of data being moved to DT files.  Nothing too
controversial, here.

Basic build, boot, and PM test results are available here:

http://www.pwsan.com/omap/testlogs/hwmod-cleanup-a-for-v4.4/20151023130140/
2015-10-23 18:13:38 -07:00
Suman Anna c4384a97af ARM: OMAP3: hwmod data: Remove legacy mailbox data and addrs
Remove the mailbox attribute data, irq info and hwmod addr space
data that are used for creating the legacy-style mailbox devices,
there is no need for these as the support for legacy-mode for this
IP is being dropped.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2015-10-23 13:01:25 -06:00
Suman Anna deb9f54ef3 ARM: DRA7: hwmod data: Remove spinlock hwmod addrs
The legacy-style device creation logic for hwspinlock
has been removed after the DT-support was added to the
driver. The hwmod addr space for spinlock is therefore
no longer needed, so remove it.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2015-10-23 13:01:24 -06:00
Suman Anna 8aeff38207 ARM: OMAP4: hwmod data: Remove spinlock hwmod addrs
The legacy-style device creation logic for hwspinlock
has been removed after the DT-support was added to the
driver. The hwmod addr space for spinlock is therefore
no longer needed, so remove it.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2015-10-23 13:01:24 -06:00
Franklin S Cooper Jr e7f73d61ad ARM: DRA7/AM335x/AM437x: hwmod: Remove gpmc address space from hwmod data
GPMC address information is provided by device tree. No longer need
to include this information within hwmod.

Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
Acked-by: Roger Quadros <rogerq@ti.com>
[paul@pwsan.com: fixed chip names in subject line]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2015-10-23 13:01:24 -06:00
Stephen Boyd b96fc2f3c1 ARM: Remove __ref on hotplug cpu die path
Now that __cpuinit has been removed, the __ref markings on these
functions are useless. Remove them. This also reduces the size of
the multi_v7_defconfig image:

$ size before after
   text    data     bss     dec     hex filename
   12683578        1470996  348904 14503478         dd4e36 before
   12683274        1470996  348904 14503174         dd4d06 after

presumably because now we don't have to jump to code in the
.ref.text section and/or the noinline marking is removed.

Cc: Shiraz Hashim <shiraz.linux.kernel@gmail.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: <linux-omap@vger.kernel.org>
Cc: <linux-arm-msm@vger.kernel.org>
Cc: <spear-devel@list.st.com>
Cc: <linux-tegra@vger.kernel.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Barry Song <baohua@kernel.org>
Acked-by: Andy Gross <agross@codeaurora.org>
Acked-by: Viresh Kumar <vireshk@kernel.org>
Acked-by: Thierry Reding <thierry.reding@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2015-10-22 09:55:03 -07:00
Marc Zyngier 0cc09e8518 ARM: Remove open-coded version of IRQCHIP_DECLARE
Now that the IRQCHIP_DECLARE macro has been moved to linux/irqchip.h,
it becomes possible to cleanup the open-coded versions of the same
macro that have been added to some private irqchips implementations.

Cc: Sascha Hauer <kernel@pengutronix.de>
Acked-by: Kukjin Kim <kgene@kernel.org>
Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2015-10-22 09:52:49 -07:00
Felipe Balbi 55ee7017ee arm: omap2: board-generic: use omap4_local_timer_init for AM437x
AM437x-based boards, can use omap4_local_timer_init()
just fine. Let's use that instead.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-21 16:30:19 -07:00
Franklin S Cooper Jr 0fd5eba575 ARM: DRA7/AM335x/AM437x: hwmod: Remove elm address space from hwmod data
ELM address information is provided by device tree. No longer need
to include this information within hwmod.

Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
Acked-by: Roger Quadros <rogerq@ti.com>
[paul@pwsan.com: fixed chip names in subject line; dropped the OMAP4 section
 since the OMAP4 SoC DTS file doesn't have the ELM address space documented
 yet]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2015-10-20 01:31:56 -06:00
Javier Martinez Canillas 10b294b3dc ARM: OMAP: Remove duplicated operand in OR operation
Commit b483a4a5a7 ("ARM: OMAP4+: hwmod data: Don't prevent RESET of
USB Host module") added the SYSC_HAS_RESET_STATUS flag to both OMAP4
and OMAP5 USB host module hwmon sysconfig but that flag was already
set for OMAP5. So now the flag appears twice in the expression.

make coccicheck complains with the following message:

omap_hwmod_54xx_data.c:1846:37-58: duplicated argument to & or |

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2015-10-20 01:29:40 -06:00