Commit Graph

28 Commits

Author SHA1 Message Date
Peter Ujfalusi 6931795238 ARM: omap2+: omap_hwmod: Set unique lock_class_key per hwmod
Add struct lock_class_key to omap_hwmod struct and use it to set unique
lockdep class per hwmod.
This will ensure that lockdep will know that each omap_hwmod->_lock should
be treated as separate class and will not give false warning about deadlock
or other issues due to nested use of hwmods.
DRA7x's ATL hwmod is one example for this since McASP can select ATL clock
as functional clock, which will trigger nested oh->_lock usage. This will
trigger false warning from lockdep validator as it is dealing with classes
and for it all hwmod clocks are the same class.

Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2015-02-26 00:00:51 -07:00
Linus Torvalds 878ba61aa9 ARM: SoC platform changes
New and updated SoC support. Also included are some cleanups where the
 platform maintainers hadn't separated cleanups from new developent in
 separate branches.
 
 Some of the larger things worth pointing out:
 
 - A large set of changes from Alexandre Belloni and Nicolas Ferre
   preparing at91 platforms for multiplatform and cleaning up quite a
   bit in the process.
 - Removal of CSR's "Marco" SoC platform that never made it out to the
   market. We love seeing these since it means the vendor published
   support before product was out, which is exactly what we want!
 
 New platforms this release are:
 
 - Conexant Digicolor (CX92755 SoC)
 - Hisilicon HiP01 SoC
 - CSR/sirf Atlas7 SoC
 - ST STiH418 SoC
 - Common code changes for Nvidia Tegra132 (64-bit SoC)
 
 We're seeing more and more platforms having a harder time labelling
 changes as cleanups vs new development -- which is a good sign that
 we've come quite far on the cleanup effort. So over time we might start
 combining the cleanup and new-development branches more.
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Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform changes from Olof Johansson:
 "New and updated SoC support.  Also included are some cleanups where
  the platform maintainers hadn't separated cleanups from new developent
  in separate branches.

  Some of the larger things worth pointing out:

   - A large set of changes from Alexandre Belloni and Nicolas Ferre
     preparing at91 platforms for multiplatform and cleaning up quite a
     bit in the process.

   - Removal of CSR's "Marco" SoC platform that never made it out to the
     market.  We love seeing these since it means the vendor published
     support before product was out, which is exactly what we want!

  New platforms this release are:

   - Conexant Digicolor (CX92755 SoC)
   - Hisilicon HiP01 SoC
   - CSR/sirf Atlas7 SoC
   - ST STiH418 SoC
   - Common code changes for Nvidia Tegra132 (64-bit SoC)

  We're seeing more and more platforms having a harder time labelling
  changes as cleanups vs new development -- which is a good sign that
  we've come quite far on the cleanup effort.  So over time we might
  start combining the cleanup and new-development branches more"

* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (124 commits)
  ARM: at91/trivial: unify functions and machine names
  ARM: at91: remove at91_dt_initialize and machine init_early()
  ARM: at91: change board files into SoC files
  ARM: at91: remove at91_boot_soc
  ARM: at91: move alternative initial mapping to board-dt-sama5.c
  ARM: at91: merge all SOC_AT91SAM9xxx
  ARM: at91: at91rm9200: set idle and restart from rm9200_dt_device_init()
  ARM: digicolor: select syscon and timer
  ARM: zynq: Simplify SLCR initialization
  ARM: zynq: PM: Fixed simple typo.
  ARM: zynq: Setup default gpio number for Xilinx Zynq
  ARM: digicolor: add low level debug support
  ARM: initial support for Conexant Digicolor CX92755 SoC
  ARM: OMAP2+: Add dm816x hwmod support
  ARM: OMAP2+: Add clock domain support for dm816x
  ARM: OMAP2+: Add board-generic.c entry for ti81xx
  ARM: at91: pm: remove warning to remove SOC_AT91SAM9263 usage
  ARM: at91: remove unused mach/system_rev.h
  ARM: at91: stop using HAVE_AT91_DBGUx
  ARM: at91: fix ordering of SRAM and PM initialization
  ...
2015-02-17 09:27:54 -08:00
Linus Torvalds ea7531ac4a ARM: SoC cleanups
This is a good healthy set of various code removals. Total net delta is 8100
 lines removed.
 
 Among the larger cleanups are:
 
 - Removal of old Samsung S3C DMA infrastructure by Arnd
 - Removal of the non-DT version of the 'lager' board by Magnus Damm
 - General stale code removal on OMAP and Davinci by Rickard Strandqvist
 - Removal of non-DT support on am3517 platforms by Tony Lindgren
 
 ... plus several other cleanups of various platforms across the board.
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Merge tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanups from Olof Johansson:
 "This is a good healthy set of various code removals.  Total net delta
  is 8100 lines removed.

  Among the larger cleanups are:

   - Removal of old Samsung S3C DMA infrastructure by Arnd
   - Removal of the non-DT version of the 'lager' board by Magnus Damm
   - General stale code removal on OMAP and Davinci by Rickard Strandqvist
   - Removal of non-DT support on am3517 platforms by Tony Lindgren

  ... plus several other cleanups of various platforms across the board"

* tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (47 commits)
  ARM: sirf: drop redundant function and marco declaration
  arm: omap: specify PMUs are for ARMv7 CPUs
  arm: shmobile: specify PMUs are for ARMv7 CPUs
  arm: iop: specify PMUs are for XScale CPUs
  arm: pxa: specify PMUs are for XScale CPUs
  arm: realview: specify PMU types
  ARM: SAMSUNG: remove unused DMA infrastructure
  ARM: OMAP3: Add back Kconfig option MACH_OMAP3517EVM for ASoC
  ARM: davinci: Remove CDCE949 driver
  ARM: at91: remove useless at91rm9200_set_type()
  ARM: at91: remove useless at91rm9200_dt_initialize()
  ARM: at91: move debug-macro.S into the common space
  ARM: at91: remove useless at91_sysirq_mask_rtx
  ARM: at91: remove useless config MACH_AT91SAM9_DT
  ARM: at91: remove useless config MACH_AT91RM9200_DT
  ARM: at91: remove unused mach/memory.h
  ARM: at91: remove useless header file includes
  ARM: at91: remove unneeded header file
  rtc: at91/Kconfig: remove useless options
  ARM: at91/Documentation: add a README for Atmel SoCs
  ...
2015-02-17 09:17:33 -08:00
Tony Lindgren 4d38bd1237 ARM: OMAP2+: Add dm816x hwmod support
Add minimal hwmod support that works at least on dm8168. This
is based on the code in the earlier TI CDP tree, and an earlier
patch by Aida Mynzhasova <aida.mynzhasova@skitlab.ru>.

I've set up things to work pretty much the same way as for
am33xx. We are basically using cm33xx.c with a different set
of clocks and clockdomains.

This code is based on the TI81XX-LINUX-PSP-04.04.00.02 patches
published at:

http://downloads.ti.com/dsps/dsps_public_sw/psp/LinuxPSP/TI81XX_04_04/04_04_00_02/index_FDS.html

Cc: Aida Mynzhasova <aida.mynzhasova@skitlab.ru>
Cc: Brian Hutchinson <b.hutchman@gmail.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-01-26 09:26:32 -08:00
Marc Zyngier 0fb22a8fb7 ARM: OMAP: Work around hardcoded interrupts
Commit 9a1091ef00 ("irqchip: gic: Support hierarchy irq domain")
changed the GIC driver to use a non-legacy IRQ domain on DT
platforms. This patch assumes that DT-driven systems are getting
all of their interrupts from device tree.

Turns out that OMAP has quite a few hidden gems, and still uses
hardcoded interrupts despite having fairly complete DTs.

This patch attempts to work around these by offering a translation
method that can be called directly from the hwmod code, if present.
The same hack is sprinkled over PRCM and TWL.

It isn't pretty, but it seems to do the job without having to add
more hacks to the interrupt controller code.

Tested on OMAP4 (Panda-ES) and OMAP5 (UEVM5432).

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Nishanth Menon <nm@ti.com>
[tony@atomide.com: updated to fix make randconfig issue]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-01-17 08:56:12 -08:00
Rickard Strandqvist 1bbc360bb7 ARM: OMAP2+: omap_hwmod.c: Remove some unused functions
Removes some functions that are not used anywhere:
omap_hwmod_pad_route_irq() omap_hwmod_no_setup_reset()
omap_hwmod_read_hardreset() omap_hwmod_del_initiator_dep()
omap_hwmod_enable_clocks() omap_hwmod_reset() omap_hwmod_ocp_barrier()
omap_hwmod_disable_clocks() omap_hwmod_add_initiator_dep()

This was partially found by using a static code analysis program called cppcheck.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-01-07 09:53:51 -08:00
Tomi Valkeinen f22d254551 ARM: OMAP2+: hwmod: add parent_hwmod support
Add parent_hwmod pointer to omap_hwmod. This can be set to point to a
"parent" hwmod that needs to be enabled for the "child" hwmod to work.

This is used at hwmod setup time: when doing the initial setup and
reset, first enable the parent hwmod, and after setup and reset is done,
restore the parent hwmod to postsetup_state.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit.taneja@gmail.com>
[paul@pwsan.com: add kerneldoc documentation for parent_hwmod; note that it
 is a temporary workaround]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2014-11-19 14:48:12 -07:00
Tony Lindgren 6a08b11add ARM: OMAP2+: Add hwmod flag for HWMOD_RECONFIG_IO_CHAIN
Commit cc824534d4 ("ARM: OMAP2+: hwmod: Rearm wake-up interrupts
for DT when MUSB is idled") fixed issues with hung UART wake-up
events by calling _reconfigure_io_chain() when MUSB is connected
or disconnected.

As pointed out by Paul Walmsley, we may need to also call
_reconfigure_io_chain() in other cases, so it should be a separate
flag. Let's add HWMOD_RECONFIG_IO_CHAIN as suggested by Paul.

Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-18 08:58:28 -07:00
Afzal Mohammed 6913952f56 ARM: OMAP2+: hwmod: AM43x support
Add hwmod support for IP's that are present in AM43x, but not in AM335x.
AM43x additional ones added here are,
1. synctimer
2. timer8-11
3. ehrpwm3-5
4. spi2-4
5. gpio4-5

AM43x pruss interconnect which is different as compared to AM335x, has
been taken care.

And register offsets for same hwmod's shared with AM335x is different,
AM43x register offsets are updated appropriately.

ocp clock of those in l4_wkup is fed from "sys_clkin_ck" instead of
"dpll_core_m4_div2_ck", so "ocpif" for those in AM43x l4_wkup has been
added seperately.

hwmod's has been added for those that have main clock (wkup_m3, control,
gpio0) and clock domain (l4_hs) different from AM335x. debugss and
adc_tsc that have different clocks and clockdomains repectively has not
been added due to the reasons mentioned below.

AM43x also has IP's like qspi, hdq1w, vpfe, des, rng, usb, dss, debugss,
adc_tsc. These are not handled here due to both/either of following
reasons,
1. To avoid churn; most of them don't have DT bindings, which would
   necessitate adding address space in hwmod, which any way would have
   to be removed once DT bindings happen with driver support.
2. patches would come in from sources other than the author

Signed-off-by: Afzal Mohammed <afzal@ti.com>
Acked-by: Rajendra Nayak <rnayak@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2013-10-13 22:48:46 -06:00
Ambresh K 90020c7b2c ARM: OMAP: DRA7: hwmod: Create initial DRA7XX SoC data
Adding the hwmod data for DRA7XX platforms.

Signed-off-by: Ambresh K <ambresh@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2013-08-23 04:29:13 -06:00
Afzal Mohammed 130142d914 ARM: OMAP2+: hwmod: rt address space index for DT
Address space is being removed from hwmod database and DT information
in <reg> property is being used. Currently the 0th index of device
address space is used to map for register target address. This is not
always true, eg. cpgmac has it's sysconfig in second address space.

Handle it by specifying index of device address space to be used for
register target. As default value of this field would be zero with
static initialization, existing behaviour of using first address space
for register target while using DT would be kept as such.

Signed-off-by: Afzal Mohammed <afzal@ti.com>
Tested-by: Mugunthan V N <mugunthanvnm@ti.com>
[paul@pwsan.com: use u8 rather than int to save memory]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2013-07-30 05:13:37 -06:00
Rajendra Nayak 7dedd34694 ARM: OMAP2+: hwmod: Fix a crash in _setup_reset() with DEBUG_LL
With commit '82702ea11ddfe0e43382e1fa5b66d807d8114916' "ARM: OMAP2+:
Fix serial init for device tree based booting" stubbing out
omap_serial_early_init() for Device tree based booting, there was a
crash observed on AM335x based devices when hwmod does a
_setup_reset() early at boot.

This was rootcaused to hwmod trying to reset console uart while
earlycon was using it.  The way to tell hwmod not to do this is to
specify the HWMOD_INIT_NO_RESET flag, which were infact set by the
omap_serial_early_init() function by parsing the cmdline to identify
the console device.

Parsing the cmdline to identify the uart used by earlycon itself seems
broken as there is nothing preventing earlycon to use a different one.

This patch, instead, attempts to populate the requiste flags for hwmod
based on the CONFIG_DEBUG_OMAPxUARTy FLAGS. This gets rid of the need
for cmdline parsing in the DT as well as non-DT cases to identify the
uart used by earlycon.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Reported-by: Mark Jackson <mpfj-list@newflow.co.uk>
Reported-by: Vaibhav Bedia <vaibhav.bedia@ti.com>
Tested-by: Mark Jackson <mpfj-list@newflow.co.uk>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2013-07-30 05:13:35 -06:00
Benoit Cousson 08e4830d71 ARM: OMAP5: hwmod data: Create initial OMAP5 SOC hwmod data
Adding the hwmod data for OMAP54xx SOCs.

Additional changes done on top of initial SOC data files.
- The IO resource information like dma request lines, irq number and
ocp address space can be populated via dt blob. So such data is stripped
from OMAP5 SOC hwmod data file.

- SDMA IO resource information is still kept since dmaengine work
is till ongoing. Once the legacy dma platform driver becomes obsolete,
SDMA io space information can be removed.

- The devices like dss, aess, usb which are missing the device tree bindings,
hwmod data is not added since OMAP5 is DT only build. When such devices add
the dt bindings, respective hwmod data can be added along with it.

With above update, we now need about ~2000 loc vs ~6000 loc with previous
version of the patch for OMAP5 hwmod data file. Ofcourse with addition of
few more drivers it can go upto ~2400 loc which is still better than the
earlier version.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2013-06-08 11:58:15 -06:00
Santosh Shilimkar 3260c76055 ARM: OMAP2+: hwmod: Remove sysc slave idle and auto idle apis
With the OMAP serial driver sysc cleanup patches in this series, we can
now remove the hwmod external apis for sysc fiddling.

While at this, also remove unused sysc auto idle api from hwmod code.

Tested-by: Vaibhav Bedia <vaibhav.bedia@ti.com>
Tested-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Rajendra nayak <rnayak@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Tested-by: Kevin Hilman <khilman@linaro.org>  # OMAP4/Panda
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2013-05-19 16:37:15 -06:00
Rajendra Nayak ca43ea345d ARM: OMAP2+: hwmod: Add a new flag to handle SIDLE in SWSUP only in active
Some IPs (like UART) need the sidle mode to be controlled in SW only
while they are active. Once they go inactive, they need the IP to be
put back in HW control so they are also wakeup capable.

The flag HWMOD_SWSUP_SIDLE takes care of IPs which need the sidle
mode to be *always* controlled in SWSUP. We now have a need to control
IPs sidle mode in SWSUP only while its active.

So define a new flag 'HWMOD_SWSUP_SIDLE_ACT' to help the framework
know about these new IP requirements.

Tested-by: Vaibhav Bedia <vaibhav.bedia@ti.com>
Tested-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Tested-by: Kevin Hilman <khilman@linaro.org>  # OMAP4/Panda
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2013-05-19 16:36:34 -06:00
Linus Torvalds 4d26aa3054 ARM: arm-soc non-critical fixes for 3.10
Here is a collection of fixes (and some intermixed cleanups) that were
 considered less important and thus not included in the later parts of
 the 3.9-rc cycle.
 
 It's a bit all over the map, contents wise. A series of ux500 fixes
 and cleanups, a bunch of various fixes for OMAP and tegra, and some for
 Freescale i.MX and even Qualcomm MSM.
 
 Note that there's also a patch on this branch to globally turn off
 -Wmaybe-uninitialized when building with -Os. It's been posted several
 times by Arnd and no dissent was raised, but nobody seemed interested
 to pick it up. So here it is, as the topmost patch.
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Merge tag 'fixes-nc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC non-critical fixes from Olof Johansson:
 "Here is a collection of fixes (and some intermixed cleanups) that were
  considered less important and thus not included in the later parts of
  the 3.9-rc cycle.

  It's a bit all over the map, contents wise.  A series of ux500 fixes
  and cleanups, a bunch of various fixes for OMAP and tegra, and some
  for Freescale i.MX and even Qualcomm MSM.

  Note that there's also a patch on this branch to globally turn off
  -Wmaybe-uninitialized when building with -Os.  It's been posted
  several times by Arnd and no dissent was raised, but nobody seemed
  interested to pick it up.  So here it is, as the topmost patch."

* tag 'fixes-nc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (70 commits)
  Turn off -Wmaybe-uninitialized when building with -Os
  ARM: orion5x: include linux/cpu.h
  ARM: tegra: call cpu_do_idle from C code
  ARM: u300: fix ages old copy/paste bug
  ARM: OMAP2+: add dependencies on ARCH_MULTI_V6/V7
  ARM: tegra: solve adr range issue with THUMB2_KERNEL enabled
  ARM: tegra: fix relocation truncated error when THUMB2_KERNEL enabled
  ARM: tegra: fix build error when THUMB2_KERNEL enabled
  ARM: msm: Fix uncompess.h tx underrun check
  ARM: vexpress: Remove A9 PMU compatible values for non-A9 platforms
  ARM: cpuimx27 and mbimx27: prepend CONFIG_ to Kconfig macro
  ARM: OMAP2+: fix typo "CONFIG_BRIDGE_DVFS"
  ARM: OMAP1: remove "config MACH_OMAP_HTCWIZARD"
  ARM: mach-imx: mach-imx6q: Fix sparse warnings
  ARM: mach-imx: src: Include "common.h
  ARM: mach-imx: gpc: Include "common.h"
  ARM: mach-imx: avic: Staticize *avic_base
  ARM: mach-imx: tzic: Staticize *tzic_base
  ARM: mach-imx: clk: Include "clk.h"
  ARM: mach-imx: clk-busy: Staticize clk_busy_mux_ops
  ...
2013-05-02 08:56:55 -07:00
Rajendra Nayak 4280943b6b ARM: OMAP2+: hwmod: Remove unused _HWMOD_WAKEUP_ENABLED flag
_HWMOD_WAKEUP_ENABLED is currently unused across the hwmod
framework. Just get rid of it, so we have one less flag to
worry about.

Tested-by: Vaibhav Bedia <vaibhav.bedia@ti.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2013-03-31 20:22:22 -06:00
Grazvydas Ignotas 092bc089c2 ARM: OMAP3: hwmod data: keep MIDLEMODE in force-standby for musb
For some unknown reason, allowing hwmod to control MIDLEMODE causes
core_pwrdm to not hit idle states for musb in DM3730 at least.
I've verified that setting any MIDLEMODE value other than "force
standby" before enabling the device causes subsequent suspend
attempts to fail with core_pwrdm not entering idle states, even
if the driver is unloaded and "force standby" is restored before
suspend attempt. To recover from this, soft reset can be used, but
that's not suitable solution for suspend.

Keeping the register set at force standby (reset value) makes it work
and device still functions properly, as musb has driver-controlled
OTG_FORCESTDBY register that controls MSTANDBY signal.
Note that TI PSP kernels also have similar workarounds.

This patch also fixes HWMOD_SWSUP_MSTANDBY documentation to match the
actual flag name.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2013-03-13 04:13:07 -06:00
Olof Johansson ebcfe0faf9 omap4 pm changes via Paul Walmsley <paul@pwsan.com>:
Some OMAP4 power management fixes and audio device integration
 patches.  This pull request contains a fix for an issue discovered during
 branch integration.
 
 Basic test logs are available at:
 
     http://www.pwsan.com/omap/testlogs/omap4_prcm_devel_a_3.9/20130210112717/
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Merge tag 'omap-for-v3.9/pm-omap4-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into late/omap

From Tony Lindgren:
omap4 pm changes via Paul Walmsley <paul@pwsan.com>:

Some OMAP4 power management fixes and audio device integration
patches.  This pull request contains a fix for an issue discovered during
branch integration.

Basic test logs are available at:

    http://www.pwsan.com/omap/testlogs/omap4_prcm_devel_a_3.9/20130210112717/

* tag 'omap-for-v3.9/pm-omap4-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP4: hwmod data: Enable AESS hwmod device
  ARM: OMAP4: hwmod data: Update AESS data with memory bank area
  ARM: OMAP4+: AESS: enable internal auto-gating during initial setup
  ASoC: TI AESS: add autogating-enable function, callable from architecture code
  ARM: OMAP2+: hwmod: add enable_preprogram hook
  ARM: OMAP2+: PM: Fix the dt return condition in pm_late_init()
  ARM: OMAP4: PM: Warn users about usage of older bootloaders
2013-02-12 15:33:39 -08:00
Paul Walmsley c02060d869 ARM: OMAP4+: AESS: enable internal auto-gating during initial setup
Enable the AESS auto-gating control bit during AESS hwmod setup.  This
fixes the following boot warning on OMAP4:

omap_hwmod: aess: _wait_target_disable failed

Without this patch, the AESS IP block does not indicate to the PRCM
that it is idle after it is reset.  This prevents some types of SoC
power management until something sets the auto-gating control bit.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Sebastien Guiriec <s-guiriec@ti.com>
Cc: Benoît Cousson <b-cousson@ti.com>
Cc: Péter Ujfalusi <peter.ujfalusi@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
2013-02-10 11:22:23 -07:00
Paul Walmsley 6d266f63a1 ARM: OMAP2+: hwmod: add enable_preprogram hook
After setup/enable, some IP blocks need some additional setting to
indicate the PRCM that they are inactive until they are configured.
Some examples on OMAP4 include the AESS and FSUSB IP blocks.

To fix this cleanly, this patch adds another optional function
pointer, enable_preprogram, to the IP block's hwmod data.  The function
that is pointed to is called by the hwmod code immediately after the
IP block is reset.

This version of the patch includes a patch description fix from Felipe.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Sebastien Guiriec <s-guiriec@ti.com>
Cc: Benoît Cousson <b-cousson@ti.com>
Cc: Péter Ujfalusi <peter.ujfalusi@ti.com>
Cc: Felipe Balbi <balbi@ti.com>
2013-02-10 11:22:22 -07:00
Paul Walmsley fa2002223e ARM: OMAP2+: hwmod: add support for blocking WFI when a device is active
Apparently, on some OMAPs, the MPU can't be allowed to enter WFI while
certain peripherals are active.  It's not clear why, and it's likely
that there is simply some other bug in the driver or integration code.
But since the likelihood that anyone will have the time to track these
problems down in the future seems quite small, we'll provide a
flag, HWMOD_BLOCK_WFI, to mark these issues in the hwmod data.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
2013-01-26 01:42:33 -07:00
Olof Johansson 9121dfca73 omap prcm changes via Paul Walmsley <paul@pwsan.com>:
Some miscellaneous OMAP hwmod changes for 3.8, along with a PRM
 change needed for one of the hwmod patches to function.
 
 Basic test logs for this branch on top of Tony's
 omap-for-v3.8/clock branch at commit
 558a0780b0 are here:
 
 http://www.pwsan.com/omap/testlogs/hwmod_devel_a_3.8/20121121161522/
 
 However, omap-for-v3.8/clock at 558a0780 does not include some fixes
 that are needed for a successful test.  With several reverts,
 fixes, and workarounds applied, the following test logs were
 obtained:
 
 http://www.pwsan.com/omap/testlogs/TEST_hwmod_devel_a_3.8/20121121162719/
 
 which indicate that the series tests cleanly.
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Merge tag 'omap-for-v3.8/devel-prcm-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/pm2

From Tony Lindgren:

omap prcm changes via Paul Walmsley <paul@pwsan.com>:

Some miscellaneous OMAP hwmod changes for 3.8, along with a PRM
change needed for one of the hwmod patches to function.

Basic test logs for this branch on top of Tony's
omap-for-v3.8/clock branch at commit
558a0780b0 are here:

http://www.pwsan.com/omap/testlogs/hwmod_devel_a_3.8/20121121161522/

However, omap-for-v3.8/clock at 558a0780 does not include some fixes
that are needed for a successful test.  With several reverts,
fixes, and workarounds applied, the following test logs were
obtained:

http://www.pwsan.com/omap/testlogs/TEST_hwmod_devel_a_3.8/20121121162719/

which indicate that the series tests cleanly.

* tag 'omap-for-v3.8/devel-prcm-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (49 commits)
  ARM: OMAP2+: omap_device: Correct resource handling for DT boot
  ARM: OMAP2+: hwmod: Add possibility to count hwmod resources based on type
  ARM: OMAP2+: hwmod: Add support for per hwmod/module context lost count
  ARM: OMAP2+: PRM: initialize some PRM functions early
  ARM: OMAP2+: clock: Cleanup !CONFIG_COMMON_CLK parts
  ARM: OMAP2xxx: clock: drop obsolete clock data
  ARM: OMAP2: clock: Cleanup !CONFIG_COMMON_CLK parts
  ARM: OMAP3+: DPLL: drop !CONFIG_COMMON_CLK sections
  ARM: AM33xx: clock: drop obsolete clock data
  ARM: OMAP3xxx: clk: drop obsolete clock data
  ARM: OMAP3: clock: Cleanup !CONFIG_COMMON_CLK parts
  ARM: OMAP44xx: clock: drop obsolete clock data
  ARM: OMAP4: clock: Cleanup !CONFIG_COMMON_CLK parts
  ARM: OMAP: hwmod: Cleanup !CONFIG_COMMON_CLK parts
  ARM: OMAP: clock: Switch to COMMON clk
  ARM: OMAP2: clock: Add 24xx data using common struct clk
  ARM: OMAP3: clock: Add 3xxx data using common struct clk
  ARM: AM33XX: clock: add clock data in common clock format
  ARM: OMAP4: clock: Add 44xx data using common struct clk
  ARM: OMAP2+: clock: add OMAP CCF convenience macros to mach-omap2/clock.h
  ...

Some context conflicts due to nearby changes resolved in
arch/arm/mach-omap2/io.c.

Signed-off-by: Olof Johansson <olof@lixom.net>
2012-11-29 22:49:30 -08:00
Olof Johansson 0f9cb211ba Linux 3.7-rc7
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Merge tag 'v3.7-rc7' into next/cleanup

Merging in mainline back to next/cleanup since it has collected a few
conflicts between fixes going upstream and some of the cleanup patches.
Git doesn't auto-resolve some of them, and they're mostly noise so let's
take care of it locally.

Conflicts are in:
	arch/arm/mach-omap2/omap_hwmod_44xx_data.c
	arch/arm/plat-omap/i2c.c
	drivers/video/omap2/dss/dss.c

Signed-off-by: Olof Johansson <olof@lixom.net>
2012-11-25 21:34:34 -08:00
Peter Ujfalusi dad4191d79 ARM: OMAP2+: hwmod: Add possibility to count hwmod resources based on type
Add flags parameter for omap_hwmod_count_resources() so users can tell which
type of resources they are interested when counting them in hwmod database.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Benoît Cousson <b-cousson@ti.com>
[paul@pwsan.com: updated to apply]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-11-21 16:15:17 -07:00
Rajendra Nayak e6d3a8b0bd ARM: OMAP2+: hwmod: Add support for per hwmod/module context lost count
OMAP4 has module specific context lost registers which makes it now
possible to have module level context loss count, instead of relying
on the powerdomain level context count.

Add 2 private hwmod api's to update/clear the hwmod/module specific
context lost counters/register.

Update the module specific context_lost_counter and clear the hardware
bits just after enabling the module.

omap_hwmod_get_context_loss_count() now returns the hwmod context loss
count them on platforms where they exist (OMAP4), else fall back on
the pwrdm level counters for older platforms.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
[paul@pwsan.com: added function kerneldoc, fixed structure kerneldoc,
 rearranged structure to avoid memory waste, marked fns as OMAP4-specific,
 prevent fn entry on non-OMAP4 chips, reduced indentation, merged update
 and clear, merged patches]
[t-kristo@ti.com: added support for arch specific hwmod ops, and changed
 the no context offset indicator to USHRT_MAX]
Signed-off-by: Tero Kristo <t-kristo@ti.com>
[paul@pwsan.com: use NO_CONTEXT_LOSS_BIT flag rather than USHRT_MAX;
 convert unsigned context lost counter to int to match the return type;
 get rid of hwmod_ops in favor of the existing soc_ops mechanism;
 move context loss low-level accesses to the PRM code]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-11-21 16:15:17 -07:00
Tony Lindgren e4c060db2c ARM: OMAP: Split plat/cpu.h into local soc.h for mach-omap1 and mach-omap2
We want to remove plat/cpu.h. To do this, let's first split
it to private soc.h to mach-omap1 and mach-omap2. We have to
keep plat/cpu.h around until the remaining drivers are fixed,
so let's include the local soc.h in plat/cpu.h and for drivers
still including plat/cpu.h.

Once the drivers are fixed not to include plat/cpu.h, we
can remove the file.

This is needed for the ARM common zImage support.

[tony@atomide.com: updated to not print a warning]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-10-18 16:23:46 -07:00
Tony Lindgren 2a296c8f89 ARM: OMAP: Make plat/omap_hwmod.h local to mach-omap2
Let's make omap_hwmod local to mach-omap2 for
ARM common zImage support.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-10-18 16:05:55 -07:00