Commit Graph

441908 Commits

Author SHA1 Message Date
Olof Johansson b5de1ce01a Qualcomm ARM Based driver Updates for v3.16-2
* Updated MSM uart driver to not access GSBI control registers
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Merge tag 'qcom-drivers-for-3.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom into next/drivers

Merge "Qualcomm ARM Based driver Updates for v3.16-2" from Kumar Gala:

* Updated MSM uart driver to not access GSBI control registers

* tag 'qcom-drivers-for-3.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom:
  tty: serial: msm: Remove direct access to GSBI

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-30 20:55:45 -07:00
Olof Johansson 182434f748 Samsung exynos-cpuidle updates for v3.16
- From Daniel Lezcano:
  This patchset relies on the cpm_pm notifier to initiate the
  powerdown sequence operations from pm.c instead cpuidle.c.
  Thus the cpuidle driver is no longer dependent from arch
  specific code as everything is called from the pm.c file.
 
 Note, this is based on tags/exnos-mcpm and tags/samsung-clk
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Merge tag 'exynos-cpuidle' of http://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/drivers

Merge "Samsung exynos-cpuidle updates for v3.16" from Kukjin Kim:

- From Daniel Lezcano:
 This patchset relies on the cpm_pm notifier to initiate the
 powerdown sequence operations from pm.c instead cpuidle.c.
 Thus the cpuidle driver is no longer dependent from arch
 specific code as everything is called from the pm.c file.

* tag 'exynos-cpuidle' of http://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: (94 commits)
  ARM: EXYNOS: Fix kernel panic when unplugging CPU1 on exynos
  ARM: EXYNOS: Move the driver to drivers/cpuidle directory
  ARM: EXYNOS: Cleanup all unneeded headers from cpuidle.c
  ARM: EXYNOS: Pass the AFTR callback to the platform_data
  ARM: EXYNOS: Move S5P_CHECK_SLEEP into pm.c
  ARM: EXYNOS: Move the power sequence call in the cpu_pm notifier
  ARM: EXYNOS: Move the AFTR state function into pm.c
  ARM: EXYNOS: Encapsulate the AFTR code into a function
  ARM: EXYNOS: Disable cpuidle for exynos5440
  ARM: EXYNOS: Encapsulate boot vector code into a function for cpuidle
  ARM: EXYNOS: Pass wakeup mask parameter to function for cpuidle
  ARM: EXYNOS: Remove ifdef for scu_enable in pm
  ARM: EXYNOS: Move scu_enable in the cpu_pm notifier
  ARM: EXYNOS: Use the cpu_pm notifier for pm
  ARM: EXYNOS: Fix S5P_WAKEUP_STAT call for cpuidle
  ARM: EXYNOS: Move some code inside the idle_finisher for cpuidle
  ARM: EXYNOS: Encapsulate register access inside a function for pm
  ARM: EXYNOS: Change function name prefix for cpuidle
  ARM: EXYNOS: Use cpuidle_register
  ARM: EXYNOS: Prevent forward declaration for cpuidle
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-29 11:21:13 -07:00
Andy Gross 31964ffebb tty: serial: msm: Remove direct access to GSBI
This patch removes direct access of the GSBI registers.  GSBI configuration
should be done through the GSBI driver directly.

Signed-off-by: Andy Gross <agross@codeaurora.org>
Signed-off-by: Kumar Gala <galak@codeaurora.org>
2014-05-29 11:06:20 -05:00
Olof Johansson 535cee4227 Keystone Reset driver for 3.16
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Merge tag 'keystone-reset-driver' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone into next/drivers

Merge "Keystone Reset driver for 3.16" from Santosh Shilimkar:

* tag 'keystone-reset-driver' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone:
  power: reset: keystone-reset: introduce keystone reset driver
  Documentation: dt: add bindings for keystone pll control controller
  Documentation: dt: add bindings for keystone reset driver

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-27 11:09:56 -07:00
Ivan Khoronzhuk a3e01e8022 power: reset: keystone-reset: introduce keystone reset driver
The keystone SoC can be rebooted in several ways. By external reset
pin, by soft and by watchdogs. To allow keystone SoC reset if
watchdog is triggered we have to enable it in reset mux configuration
register regarding of watchdog configuration. Also we need to set
soft/hard reset we are going to use.

So add keystone reset driver to handle all this stuff.

Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2014-05-27 09:46:40 -04:00
Ivan Khoronzhuk d30982b93a Documentation: dt: add bindings for keystone pll control controller
The main pll controller used to drive theC66x CorePacs, the switch fabric,
and a majority of the peripheral clocks (all but the ARM CorePacs, DDR3 and
the NETCP modules) requires a PLL Controller to manage the various clock
divisions, gating, and synchronization.

Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
[santosh.shilimkar@ti.com: Fixed the subject line]
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2014-05-27 09:46:39 -04:00
Ivan Khoronzhuk caee005533 Documentation: dt: add bindings for keystone reset driver
This node is intended to allow SoC reset in case of software reset
or appropriate watchdogs.

The Keystone SoCs can contain up to 4 watchdog timers to reset
SoC. Each watchdog timer event input is connected to the Reset Mux
block. The Reset Mux block can be configured to cause reset or not.

Additionally soft or hard reset can be configured.

Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
[santosh.shilimkar@ti.com: Fixed the subject line]
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2014-05-27 09:46:32 -04:00
Olof Johansson 3a5e23cf9e This series makes edma use configuration
information available within the IP instead
 of reading it from platform data or DT. Some
 other useful clean-ups are included too.
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Merge tag 'davinci-for-v3.16/edma' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into next/drivers

Merge "DaVinci EDMA clean-up for v3.16" from Sekhar Nori:

This series makes edma use configuration information available within
the IP instead of reading it from platform data or DT. Some other useful
clean-ups are included too.

* tag 'davinci-for-v3.16/edma' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci: (34 commits)
  ARM: edma: Remove redundant/unused parameters from edma_soc_info
  ARM: davinci: Remove redundant/unused parameters for edma
  ARM: dts: am4372: Remove obsolete properties from edma node
  ARM: dts: am33xx: Remove obsolete properties from edma node
  dt/bindings: ti,edma: Remove redundant properties from documentation
  ARM: edma: Get IP configuration from HW (number of channels, tc, etc)
  ARM: edma: Save number of regions from pdata to struct edma
  ARM: edma: Remove num_cc member from struct edma
  ARM: edma: Remove queue_tc_mapping data from edma_soc_info
  ARM: davinci: Remove eDMA3 queue_tc_mapping data from edma_soc_info
  ARM: edma: Do not change TC -> Queue mapping, leave it to default.
  ARM: edma: Take the number of tc from edma_soc_info (pdata)
  ARM: edma: No need to clean the pdata in edma_of_parse_dt()
  ARM: edma: Clean up and simplify the code around irq request
  dmaengine: edma: update DMA memcpy to use new param element
  dmaengine: edma: Document variables used for residue accounting
  dmaengine: edma: Provide granular accounting
  dmaengine: edma: Make reading the position of active channels work
  dmaengine: edma: Store transfer data in edma_desc and edma_pset
  dmaengine: edma: Create private pset struct
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-26 14:59:05 -07:00
Olof Johansson 7741fa197c The patch fixes EDMA crossbar mapping to actually
make it work. The patch has been tagged for stable.
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Merge tag 'davinci-fixes-for-v3.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into next/drivers

The patch fixes EDMA crossbar mapping to actually
make it work. The patch has been tagged for stable.

* tag 'davinci-fixes-for-v3.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
  ARM: common: edma: Fix xbar mapping
2014-05-26 14:55:53 -07:00
Olof Johansson 75d6bc5f7a Improvments to omap l3-noc bus driver for v3.16 merge window
to add support for am347x and dra7.
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Merge tag 'omap-for-v3.16/l3-noc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/drivers

Merge "ARM: omap l3-noc bus driver changes for v3.16 merge window, resend" from
Tony Lindgren:

Improvments to omap l3-noc bus driver for v3.16 merge window
to add support for am347x and dra7.

* tag 'omap-for-v3.16/l3-noc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (25 commits)
  bus: omap_l3_noc: Add AM4372 interconnect error data
  bus: omap_l3_noc: Add DRA7 interconnect error data
  bus: omap_l3_noc: introduce concept of submodule
  bus: omap_l3_noc: Add information about the context of operation
  bus: omap_l3_noc: add information about the type of operation
  bus: omap_l3_noc: ignore masked out unclearable targets
  bus: omap_l3_noc: improve readability by using helper for slave event parsing
  bus: omap_l3_noc: make error reporting and handling common
  bus: omap_l3_noc: fix masterid detection
  bus: omap_l3_noc: convert flagmux information into a structure
  bus: omap_l3_noc: use of_match_data to pick up SoC information
  bus: omap_l3_noc: Add support for discountinous flag mux input numbers
  bus: omap_l3_noc: convert target information into a structure
  bus: omap_l3_noc: move L3 master data structure out
  bus: omap_l3_noc: un-obfuscate l3_targ address computation
  bus: omap_l3_noc: switch over to relaxed variants of readl/writel
  bus: omap_l3_noc: populate l3->dev and use it
  bus: omap_l3_noc: remove iclk from omap_l3 struct
  bus: omap_l3_noc: rename functions and data to omap_l3
  bus: omap_l3_noc: Fix copyright information
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-26 13:29:22 -07:00
Arnd Bergmann 1b7f0c7b93 soc: qcom: fix of_device_id table
The match tables must be zero-terminated, and Kbuild now helpfully
fails to link the kernel if that isn't the case.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-05-26 21:27:09 +02:00
Daniel Lezcano cd245f59aa ARM: EXYNOS: Fix kernel panic when unplugging CPU1 on exynos
A look at the code reveals use of S5P_VA_SYSRAM macro, in case of certain SoC
revisions, which is not valid any longer, after SYSRAM started to be mapped
dynamically. The new dynamic mapping is stored in sysram_base_addr variable,
which is declared static in platsmp.c

This fix makes sysram_base_addr non-static, declared it in common.h and used
in pm.c instead of S5P_VA_SYSRAM.

Suggested-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-26 05:21:47 +09:00
Daniel Lezcano ff6a9c039d ARM: EXYNOS: Move the driver to drivers/cpuidle directory
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-26 05:21:46 +09:00
Daniel Lezcano ce4305d2a5 ARM: EXYNOS: Cleanup all unneeded headers from cpuidle.c
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-26 05:21:45 +09:00
Daniel Lezcano 277f50464d ARM: EXYNOS: Pass the AFTR callback to the platform_data
No more dependency on the arch code. The platform_data field is used to set the
PM callback as the other cpuidle drivers.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-26 05:21:38 +09:00
Daniel Lezcano e30b154bd2 ARM: EXYNOS: Move S5P_CHECK_SLEEP into pm.c
This macro is only used there.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-26 05:21:08 +09:00
Daniel Lezcano 0ebc13e2a2 ARM: EXYNOS: Move the power sequence call in the cpu_pm notifier
The code to initiate and exit the powerdown sequence is the same in
pm.c and cpuidle.c.

Let's split the common part in the pm.c and reuse it from the cpu_pm notifier.

That is one more step forward to make the cpuidle driver arch indenpendant.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-26 05:21:08 +09:00
Daniel Lezcano 3681bafeb1 ARM: EXYNOS: Move the AFTR state function into pm.c
In order to remove depedency on pm code, let's move the 'exynos_enter_aftr'
function into the pm.c file as well as the other helper functions.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-26 05:21:08 +09:00
Daniel Lezcano 712bb69e89 ARM: EXYNOS: Encapsulate the AFTR code into a function
Let's encapsulate the AFTR state specific call into a single function.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-26 05:21:08 +09:00
Daniel Lezcano 70ecb842ba ARM: EXYNOS: Disable cpuidle for exynos5440
There is no point to register the cpuidle driver for the 5440 as it has only
one WFI state which is the default idle function when the cpuidle driver is
disabled.

By disabling cpuidle we prevent to enter to the governor computation for
nothing, thus saving a lot of processing time.

The only drawback is the statistic via sysfs on this state which is lost but
it is meaningless and it could be retrieved from the ftrace easily.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Acked-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-26 05:21:08 +09:00
Daniel Lezcano dcef663d49 ARM: EXYNOS: Encapsulate boot vector code into a function for cpuidle
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-26 05:21:08 +09:00
Daniel Lezcano 623f22665c ARM: EXYNOS: Pass wakeup mask parameter to function for cpuidle
Pass the wakeup mask to 'exynos_set_wakeupmask' as this function could
be used for different idle states with different mask.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-26 05:21:07 +09:00
Daniel Lezcano 58afbc61a3 ARM: EXYNOS: Remove ifdef for scu_enable in pm
The scu_enable function is already a noop in the scu's header file is
CONFIG_SMP=n, so no need to use these macros in the code.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-26 05:21:07 +09:00
Daniel Lezcano 795537daae ARM: EXYNOS: Move scu_enable in the cpu_pm notifier
We make the cpuidle code less arch dependent.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-26 05:21:07 +09:00
Daniel Lezcano 85f9f90808 ARM: EXYNOS: Use the cpu_pm notifier for pm
Use the cpu_pm_enter/exit notifier to group some pm code inside the
pm file.

The save and restore code is duplicated across pm.c and cpuidle.c. By
using the cpu_pm notifier, we can factor out the routine.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-26 05:21:07 +09:00
Daniel Lezcano 9bd5544af8 ARM: EXYNOS: Fix S5P_WAKEUP_STAT call for cpuidle
This function should be called only when the powerdown sequence fails.

Even if the current code does not hurt, by moving this line, we have
the same code than the one in pm.c.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-26 05:21:07 +09:00
Daniel Lezcano 20115fa874 ARM: EXYNOS: Move some code inside the idle_finisher for cpuidle
Move the code around to differentiate different section of code and
prepare it to be factored out in the next patches.

The call order changed but hat doesn't have a side effect because
they are independent. The important call is cpu_do_idle() which must
be done the last.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-26 05:21:07 +09:00
Daniel Lezcano 309e08c4ca ARM: EXYNOS: Encapsulate register access inside a function for pm
That makes the code cleaner and encapsulted. The function will be
reused in the next patch.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-26 05:21:06 +09:00
Daniel Lezcano 7880e45ed0 ARM: EXYNOS: Change function name prefix for cpuidle
The driver was initially written for exynos4 but the driver is used
also for exynos5.

Change the function prefix name exynos4 -> exynos

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-26 05:21:06 +09:00
Daniel Lezcano 043c86b6f2 ARM: EXYNOS: Use cpuidle_register
Use the cpuidle generic function 'cpuidle_register'. That saves us
from some extra lines of code and unneeded variables.

A side effect of this change is a bug fix where before the cpuidle
driver was registered for each_online_cpu and now it is for
each_possible_cpu.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-26 05:21:06 +09:00
Daniel Lezcano 53af16a1a8 ARM: EXYNOS: Prevent forward declaration for cpuidle
Move the structure below the 'exynos4_enter_lowpower' function so no
more need of forward declaration.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-26 05:21:06 +09:00
Amit Daniel Kachhap 9a8f39950d ARM: EXYNOS: Move arm core power down clock to exynos5250 common clock
Now with common clock support added for exynos5250 it is necessary to
move this code to exynos5250 common clock driver as clock registers
should be handled there. This change is tested in exynos5250 based
arndale platform.

Cc: Abhilash Kesavan <a.kesavan@samsung.com>
Cc: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Kukjin Kim <kgene.kim@samsugn.com>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
[t.figa: Rebased onto current kernel sources.]
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-26 05:21:06 +09:00
Kukjin Kim 985326c9f6 Merge branch 'v3.16-next/clk-samsung' into v3.16-next/cpuidle-exynos 2014-05-26 05:20:25 +09:00
Florian Fainelli 7a1002e5ba Documentation: sysfs: add Broadcom GISB arbiter sysfs properties
This patch documents the sysfs properties exposed by the Broadcom GISB
bus arbiter hardware.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-05-24 00:58:44 +02:00
Florian Fainelli e53c077248 Documentation: devicetree: add Broadcom GISB arbiter bindings
This patch adds the Broadcom GISB arbiter Device Tree binding that is
used on all Broadcom Set-top-box System-on-a-chip.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-05-24 00:58:43 +02:00
Florian Fainelli 44127b771d bus: add Broadcom GISB bus arbiter timeout/error handler
This patch adds support for the Broadcom GISB arbiter bus timeout/error
handler. GISB is a proprietary bus used by Broadcom Set Top Box
System-on-a-chip devices (BCM7xxx) which allows multiple masters and
clients to be interfaced with each other.

The bus arbiter offers support for generating two interrupts towards the
host CPU, thus allowing us to "catch" clock gated masters, or masters
being volontarily blocked for powersaving purposes, or do general system
troubleshooting.

We also register a hook with the ARM fault exception handling to allow
printing a more informative message than "imprecise external abort at
0x00000000" for instance.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-05-24 00:58:39 +02:00
Arnd Bergmann b3d491e85d Allwinner drivers changes for 3.16, take 2
Add reset driver for the A31
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Merge tag 'sunxi-drivers-for-3.16-2' of https://github.com/mripard/linux into next/drivers

Allwinner drivers changes for 3.16, take 2

Add reset driver for the A31

* tag 'sunxi-drivers-for-3.16-2' of https://github.com/mripard/linux:
  power: reset: Add Allwinner A31 reset code

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-05-24 00:46:55 +02:00
Arnd Bergmann 34b16f74eb Qualcomm ARM Based driver Updates for v3.16
* Introduce drivers/soc directory for misc SoC specific code
 * Add driver to configure GSBI device
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Merge tag 'qcom-drivers-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom into next/drivers

Qualcomm ARM Based driver Updates for v3.16

* Introduce drivers/soc directory for misc SoC specific code
* Add driver to configure GSBI device

* tag 'qcom-drivers-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom:
  soc: qcom: Add GSBI driver
  soc: Introduce drivers/soc place-holder for SOC specific drivers

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-05-24 00:46:05 +02:00
Andy Gross 5d144e36b7 soc: qcom: Add GSBI driver
The GSBI (General Serial Bus Interface) driver controls the overarching
configuration of the shared serial bus infrastructure on APQ8064, IPQ8064, and
earlier QCOM processors.  The GSBI supports UART, I2C, SPI, and UIM
functionality in various combinations.

Signed-off-by: Andy Gross <agross@codeaurora.org>
Signed-off-by: Kumar Gala <galak@codeaurora.org>
2014-05-23 11:38:04 -05:00
Santosh Shilimkar 3a6e08218f soc: Introduce drivers/soc place-holder for SOC specific drivers
Based on earlier thread "https://lkml.org/lkml/2013/10/7/662" and
discussion at Kernel Summit'2013, it was agreed to create
'driver/soc' for drivers which are quite SOC specific.

Further discussion on the subject is in response to
the earlier version of the patch is here:
	http://lwn.net/Articles/588942/

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Olof Johansson <olof@lixom.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sandeep Nair <sandeep_n@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Kumar Gala <galak@codeaurora.org>
2014-05-23 11:37:46 -05:00
Maxime Ripard 1be7f5520a power: reset: Add Allwinner A31 reset code
That code used to be in the machine code, but it's more fit here with other
restart hooks.

That will allow to cleanup the machine directory, while waiting for a proper
watchdog driver for the A31.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2014-05-23 10:40:34 +02:00
Peter Ujfalusi 903ed4913c ARM: edma: Remove redundant/unused parameters from edma_soc_info
The following parameters are no longer needed by the edma driver since the
information can be obtained from the IP's CCCFG register:
n_channel, n_region, n_slot and n_tc.
Remove the n_cc as well since in this context it has no meaning. We have
separate edma_soc_info struct/eDMA3_CC instance so this member does not
make any sense (and the driver no longer uses it).

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2014-05-22 14:55:25 +05:30
Peter Ujfalusi d5fc0e8dd9 ARM: davinci: Remove redundant/unused parameters for edma
The following parameters are no longer needed by the edma driver since the
information can be obtained from the IP's CCCFG register:
n_channel, n_region, n_slot and n_tc.
Remove the initialization of n_cc as well since in this context it has no
meaning. We have separate edma_soc_info struct/eDMA3_CC instance so this
member does not make any sense (and the driver no longer uses it).

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2014-05-22 14:55:23 +05:30
Peter Ujfalusi 27f12c5bc3 ARM: dts: am4372: Remove obsolete properties from edma node
dma-channels, ti,edma-regions and ti,edma-slots no longer needed in DT since
the the same information is available in the IP's CCCFG register.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2014-05-22 14:55:22 +05:30
Peter Ujfalusi 86a1dddc1c ARM: dts: am33xx: Remove obsolete properties from edma node
dma-channels, ti,edma-regions and ti,edma-slots no longer needed in DT since
the the same information is available in the IP's CCCFG register.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2014-05-22 14:55:21 +05:30
Peter Ujfalusi efc24e1480 dt/bindings: ti,edma: Remove redundant properties from documentation
From CCCFG register of eDMA3 we can get all the needed information for the
driver about the IP:
Number of channels: NUM_DMACH
Number of regions: NUM_REGN
Number of slots (PaRAM sets): NUM_PAENTRY
Number of TC/EQ: NUM_EVQUE

The ti,edma-regions; ti,edma-slots and dma-channels in DT are
redundant since the very same information can be obtained from the HW.
The mentioned properties are deprecated.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2014-05-22 14:55:19 +05:30
Peter Ujfalusi 6d10c3950b ARM: edma: Get IP configuration from HW (number of channels, tc, etc)
From CCCFG register of eDMA3 we can get all the needed information for the
driver about the IP:
Number of channels: NUM_DMACH
Number of regions: NUM_REGN
Number of slots (PaRAM sets): NUM_PAENTRY
Number of TC/EQ: NUM_EVQUE

In case when booted with DT or the queue_priority_mapping is not provided
set up a default priority map.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2014-05-22 14:55:07 +05:30
Peter Ujfalusi 643efcff52 ARM: edma: Save number of regions from pdata to struct edma
To be consistent in the code that we take parameters from edma_cc[j] struct
and not randomly from info[j] as well.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2014-05-22 14:26:45 +05:30
Peter Ujfalusi 6710ea7a02 ARM: edma: Remove num_cc member from struct edma
The struct edma is allocated per CC bases so the member num_cc does not make
any sense. One CC is one CC, it does not have sub CCs.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2014-05-22 14:26:43 +05:30
Peter Ujfalusi db885bf828 ARM: edma: Remove queue_tc_mapping data from edma_soc_info
It is no longer in use by the driver or board files.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2014-05-22 14:26:27 +05:30