Commit Graph

264 Commits

Author SHA1 Message Date
Chanwoo Choi
96bd6224f0 clk: samsung: exynos5433: Add clocks using common clock framework
This patch adds support for the CMU (Clock Management Units) of Exynos5433
which is an Octa-core 64bit SoC. This patch supports necessary clocks
(PLL/MMC/UART/MCT/I2C/SPI) for kernel boot and includes binding documentation
for Exynos5433 clock controller.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
[s.nawrocki@samsung.com: whitespace cleanup in dt-bindings/clock/exynos5433.h]
[                        added U suffix to first arguments of PLL_35XX_RATE()]
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2015-02-04 18:56:25 +01:00
Chanwoo Choi
e64fb42da4 clk: samsung: exynos4: Add divider clock id for memory bus frequency
This patch adds the divider clock id for Exynos4 memory bus frequency.
The clock id is used for DVFS (Dynamic Voltage/Frequency Scaling)
feature of the exynos memory bus.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2015-01-28 15:51:17 +01:00
Chanwoo Choi
01e5200d16 clk: samsung: exynos4415: Use samsung_cmu_register_one() to simplify code
This patch uses the samsung_cmu_register_one() to simplify code
for Exynos4415.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2014-12-23 14:26:27 +01:00
Chanwoo Choi
c913e1b32b clk: samsung: exynos3250: Use samsung_cmu_register_one() to simplify code
This patch uses the samsung_cmu_register_one() to simplify code
for Exynos3250.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2014-12-23 14:25:52 +01:00
Chanwoo Choi
151d4d35f9 clk: samsung: Change the return value of samsung_cmu_register_one()
This patch changes the return value of samsung_cmu_register_one()
from 'void' to 'samsung_clk_provider structure' pointer type because
samsung_clk_provider may be used in each clock driver.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2014-12-23 14:24:59 +01:00
Linus Torvalds
bfc7249cc2 Please consider pulling the clk framework changes toward 3.19. It is
much later than usual due to several last minute bugs that had to be
 addressed. As usual the majority of changes are new drivers and
 modifications to existing drivers. The core recieved many fixes along
 with the groundwork for several large changes coming in the future which
 will better parition clock providers from clock consumers.
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Merge tag 'clk-for-linus-3.19' of git://git.linaro.org/people/mike.turquette/linux

Pull clk framework updates from Mike Turquette:
 "This is much later than usual due to several last minute bugs that had
  to be addressed.  As usual the majority of changes are new drivers and
  modifications to existing drivers.  The core recieved many fixes along
  with the groundwork for several large changes coming in the future
  which will better parition clock providers from clock consumers"

* tag 'clk-for-linus-3.19' of git://git.linaro.org/people/mike.turquette/linux: (86 commits)
  clk: samsung: Fix Exynos 5420 pinctrl setup and clock disable failure due to domain being gated
  ARM: OMAP3: clock: fix boot breakage in legacy mode
  ARM: OMAP2+: clock: fix DPLL code to use new determine rate APIs
  clk: Really fix deadlock with mmap_sem
  clk: mmp: fix sparse non static symbol warning
  clk: Change clk_ops->determine_rate to return a clk_hw as the best parent
  clk: change clk_debugfs_add_file to take a struct clk_hw
  clk: Don't expose __clk_get_accuracy
  clk: Don't try to use a struct clk* after it could have been freed
  clk: Remove unused function __clk_get_prepare_count
  clk: samsung: Fix double add of syscore ops after driver rebind
  clk: samsung: exynos4: set parent of sclk_hdmiphy to hdmi
  clk: samsung: exynos4415: Fix build with PM_SLEEP disabled
  clk: samsung: remove unnecessary inclusion of header files from clk.h
  clk: samsung: remove unnecessary CONFIG_OF from clk.c
  clk: samsung: Spelling s/bwtween/between/
  clk: rockchip: Add support for the mmc clock phases using the framework
  clk: rockchip: add bindings for the mmc clocks
  clk: rockchip: rk3288 export i2s0_clkout for use in DT
  clk: rockchip: use clock ID for DMC (memory controller) on rk3288
  ...
2014-12-20 16:42:36 -08:00
Krzysztof Kozlowski
f1e9203e23 clk: samsung: Fix Exynos 5420 pinctrl setup and clock disable failure due to domain being gated
Audio subsystem clocks are located in separate block. On Exynos 5420 if
clock for this block (from main clock domain) 'mau_epll' is gated then
any read or write to audss registers will block.

This kind of boot hang was observed on Arndale Octa and Peach Pi/Pit
after introducing runtime PM to pl330 DMA driver. After that commit the
'mau_epll' was gated, because the "amba" clock was disabled and there
were no more users of mau_epll.

The system hang on one of steps:
1. Disabling unused clocks from audss block.
2. During audss GPIO setup (just before probing i2s0 because
   samsung_pinmux_setup() tried to access memory from audss block which was
   gated.

Add a workaround for this by enabling the 'mau_epll' clock in probe.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
2014-12-17 07:31:51 -08:00
Linus Torvalds
e6b5be2be4 Driver core patches for 3.19-rc1
Here's the set of driver core patches for 3.19-rc1.
 
 They are dominated by the removal of the .owner field in platform
 drivers.  They touch a lot of files, but they are "simple" changes, just
 removing a line in a structure.
 
 Other than that, a few minor driver core and debugfs changes.  There are
 some ath9k patches coming in through this tree that have been acked by
 the wireless maintainers as they relied on the debugfs changes.
 
 Everything has been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core update from Greg KH:
 "Here's the set of driver core patches for 3.19-rc1.

  They are dominated by the removal of the .owner field in platform
  drivers.  They touch a lot of files, but they are "simple" changes,
  just removing a line in a structure.

  Other than that, a few minor driver core and debugfs changes.  There
  are some ath9k patches coming in through this tree that have been
  acked by the wireless maintainers as they relied on the debugfs
  changes.

  Everything has been in linux-next for a while"

* tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits)
  Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries"
  fs: debugfs: add forward declaration for struct device type
  firmware class: Deletion of an unnecessary check before the function call "vunmap"
  firmware loader: fix hung task warning dump
  devcoredump: provide a one-way disable function
  device: Add dev_<level>_once variants
  ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries
  ath: use seq_file api for ath9k debugfs files
  debugfs: add helper function to create device related seq_file
  drivers/base: cacheinfo: remove noisy error boot message
  Revert "core: platform: add warning if driver has no owner"
  drivers: base: support cpu cache information interface to userspace via sysfs
  drivers: base: add cpu_device_create to support per-cpu devices
  topology: replace custom attribute macros with standard DEVICE_ATTR*
  cpumask: factor out show_cpumap into separate helper function
  driver core: Fix unbalanced device reference in drivers_probe
  driver core: fix race with userland in device_add()
  sysfs/kernfs: make read requests on pre-alloc files use the buffer.
  sysfs/kernfs: allow attributes to request write buffer be pre-allocated.
  fs: sysfs: return EGBIG on write if offset is larger than file size
  ...
2014-12-14 16:10:09 -08:00
Krzysztof Kozlowski
c31844ffdb clk: samsung: Fix double add of syscore ops after driver rebind
During driver unbind the syscore ops were not unregistered which lead to
double add on syscore list:

$ echo "3810000.audss-clock-controller" > /sys/bus/platform/drivers/exynos-audss-clk/unbind
$ echo "3810000.audss-clock-controller" > /sys/bus/platform/drivers/exynos-audss-clk/bind
[ 1463.044061] ------------[ cut here ]------------
[ 1463.047255] WARNING: CPU: 0 PID: 1 at lib/list_debug.c:36 __list_add+0x8c/0xc0()
[ 1463.054613] list_add double add: new=c06e52c0, prev=c06e52c0, next=c06d5f84.
[ 1463.061625] Modules linked in:
[ 1463.064623] CPU: 0 PID: 1 Comm: bash Tainted: G        W      3.18.0-rc5-next-20141121-00005-ga8fab06eab42-dirty #1022
[ 1463.075338] [<c0014e2c>] (unwind_backtrace) from [<c0011d80>] (show_stack+0x10/0x14)
[ 1463.083046] [<c0011d80>] (show_stack) from [<c048bb70>] (dump_stack+0x70/0xbc)
[ 1463.090236] [<c048bb70>] (dump_stack) from [<c00233d4>] (warn_slowpath_common+0x74/0xb0)
[ 1463.098295] [<c00233d4>] (warn_slowpath_common) from [<c00234a4>] (warn_slowpath_fmt+0x30/0x40)
[ 1463.106962] [<c00234a4>] (warn_slowpath_fmt) from [<c020fe80>] (__list_add+0x8c/0xc0)
[ 1463.114760] [<c020fe80>] (__list_add) from [<c0282094>] (register_syscore_ops+0x30/0x3c)
[ 1463.122819] [<c0282094>] (register_syscore_ops) from [<c0392f20>] (exynos_audss_clk_probe+0x36c/0x460)
[ 1463.132091] [<c0392f20>] (exynos_audss_clk_probe) from [<c0283084>] (platform_drv_probe+0x48/0xa4)
[ 1463.141013] [<c0283084>] (platform_drv_probe) from [<c0281a14>] (driver_probe_device+0x13c/0x37c)
[ 1463.149852] [<c0281a14>] (driver_probe_device) from [<c0280560>] (bind_store+0x90/0xe0)
[ 1463.157822] [<c0280560>] (bind_store) from [<c027fd10>] (drv_attr_store+0x20/0x2c)
[ 1463.165363] [<c027fd10>] (drv_attr_store) from [<c0143898>] (sysfs_kf_write+0x4c/0x50)
[ 1463.173252] [<c0143898>] (sysfs_kf_write) from [<c0142c80>] (kernfs_fop_write+0xbc/0x198)
[ 1463.181395] [<c0142c80>] (kernfs_fop_write) from [<c00e2be0>] (vfs_write+0xa0/0x1a8)
[ 1463.189104] [<c00e2be0>] (vfs_write) from [<c00e2f00>] (SyS_write+0x40/0x8c)
[ 1463.196122] [<c00e2f00>] (SyS_write) from [<c000f2a0>] (ret_fast_syscall+0x0/0x48)
[ 1463.203655] ---[ end trace 08f6710c9bc8d8f3 ]---
[ 1463.208244] exynos-audss-clk 3810000.audss-clock-controller: setup completed

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Fixes: 1241ef94cc ("clk: samsung: register audio subsystem clocks using common clock framework")
Cc: <stable@vger.kernel.org>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2014-12-02 16:22:59 +01:00
Andrzej Hajda
df019a5c0f clk: samsung: exynos4: set parent of sclk_hdmiphy to hdmi
sclk_hdmiphy clock is generated by HDMI-PHY and depends on hdmi gate clock.
The patch models this dependency using parent/child hirerarchy.

The patch fixes issue with system hangs during mixer device access, mixer uses
sclk_hdmiphy descendant clock.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2014-12-02 16:22:58 +01:00
Krzysztof Kozlowski
b5f56e14c1 clk: samsung: exynos4415: Fix build with PM_SLEEP disabled
Fix following build errors when PM_SLEEP is disabled (e.g. by disabling
SUSPEND and HIBERNATION):

drivers/clk/samsung/clk-exynos4415.c: In function ‘exynos4415_cmu_init’:
drivers/clk/samsung/clk-exynos4415.c:982:2: error: ‘exynos4415_ctx’ undeclared (first use in this function)
drivers/clk/samsung/clk-exynos4415.c:982:2: note: each undeclared identifier is reported only once for each function it appears in
drivers/clk/samsung/clk-exynos4415.c: In function ‘exynos4415_cmu_dmc_init’:
drivers/clk/samsung/clk-exynos4415.c:1123:2: error: ‘exynos4415_dmc_ctx’ undeclared (first use in this function)
make[3]: *** [drivers/clk/samsung/clk-exynos4415.o] Error 1

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2014-12-02 16:22:58 +01:00
Pankaj Dubey
8b2f63606a clk: samsung: remove unnecessary inclusion of header files from clk.h
Let's remove unnecessary include of header files from clk.h and add
required one in clk.c

Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
[s.nawrocki@samsung.com: dropped removal of '#include <linux/syscore_ops.h>']
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2014-12-02 16:21:37 +01:00
Pankaj Dubey
7882857e98 clk: samsung: remove unnecessary CONFIG_OF from clk.c
Remove unnecessary CONFIG_OF from samsung/clk.c.

Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2014-12-02 12:28:24 +01:00
Pankaj Dubey
2e41b9fc11 clk: samsung: Spelling s/bwtween/between/
Fix a typo in comment section of "struct samsung_clk_provider".

Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2014-12-02 12:28:20 +01:00
Pankaj Dubey
5e6473f422 clk: exynos5440: move restart code into clock driver
Let's register restart handler for Exynos5440 from it's clock driver
for restart functionality. So that we can cleanup restart hooks from
machine specific file.

CC: Sylwester Nawrocki <s.nawrocki@samsung.com>
CC: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-11-22 23:07:21 +09:00
Abhilash Kesavan
932e98224d clk: samsung: exynos7: add gate clock for ADC block
Add clock support for the ADC interface in Exynos7.

Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2014-10-31 10:45:54 +01:00
Naveen Krishna Ch
2ab2dfe5d4 clk: samsung: exynos7: add gate clocks for WDT, TMU and PWM blocks
Add clock support for the watchdog timer, pwm timer and thermal
management unit IPs in Exynos7.

Signed-off-by: Naveen Krishna Ch <naveenkrishna.ch@gmail.com>
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2014-10-31 10:45:53 +01:00
Naveen Krishna Ch
f5e127cd5e clk: samsung: exynos7: add clocks for RTC block
Add clock support for the RTC block in Exynos7.

Signed-off-by: Naveen Krishna Ch <naveenkrishna.ch@gmail.com>
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2014-10-31 10:45:52 +01:00
Naveen Krishna Ch
6d0c8c723f clk: samsung: exynos7: add clocks for MMC block
Exynos7 supports 3 MMC channels, add the MMC gate clocks to
support them.

Signed-off-by: Naveen Krishna Ch <naveenkrishna.ch@gmail.com>
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2014-10-31 10:45:51 +01:00
Naveen Krishna Ch
57a2b485fa clk: samsung: exynos7: add clocks for I2C block
Exynos7 supports 12 I2C channels, add the I2C gate clocks to
support them.

Signed-off-by: Naveen Krishna Ch <naveenkrishna.ch@gmail.com>
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2014-10-31 10:45:51 +01:00
Naveen Krishna Ch
532abc3a4a clk: samsung: add initial clock support for Exynos7 SoC
Add initial clock support for Exynos7 SoC which is required
to bring up platforms based on Exynos7.

Signed-off-by: Naveen Krishna Ch <naveenkrishna.ch@gmail.com>
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Reviewed-by: Thomas Abraham <thomas.ab@samsung.com>
Tested-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2014-10-31 10:45:47 +01:00
Naveen Krishna Ch
0e5af27008 clk: samsung: Add fixed_factor_clocks field to struct exynos_cmu_info
Add the fields "fixed_factor_clks" and "nr_fixed_factor_clks" to
"struct exynos_cmu_info" to allow registering of fixed factor
clocks as well with exynos_cmu_register_one().

Signed-off-by: Naveen Krishna Ch <naveenkrishna.ch@gmail.com>
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Reviewed-by: Thomas Abraham <thomas.ab@samsung.com>
Tested-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2014-10-31 10:45:46 +01:00
Naveen Krishna Ch
16a9013b83 clk: samsung: Factor out the common code to clk.c
While adding clock support for Exynos5260, the infrastructure to
register multiple clock controllers was introduced. Factor out the
support for registering multiple clock controller from Exynos5260
clock code to common samsung clock code so that it can be used by
other Exynos SoC which have multiple clock controllers.

Signed-off-by: Naveen Krishna Ch <naveenkrishna.ch@gmail.com>
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Reviewed-by: Thomas Abraham <thomas.ab@samsung.com>
Tested-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2014-10-31 10:45:45 +01:00
Naveen Krishna Ch
0c23e2af67 clk: samsung: add support for 145xx and 1460x PLLs
PLL145xx is similar to PLL35xx and PLL1460x is almost similar
to PLL46xx with minor differences in bit positions. Hence,
reuse the functions defined for pll_35xx and pll_46xx to
support 145xx and 1460x PLLs respectively.

Signed-off-by: Naveen Krishna Ch <naveenkrishna.ch@gmail.com>
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Reviewed-by: Thomas Abraham <thomas.ab@samsung.com>
Tested-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2014-10-31 10:45:35 +01:00
Chanwoo Choi
384cb2ce81 clk: samsung: exynos4415: Add clocks using common clock framework
This patch adds clock driver of Exynos4415 SoC based on Cortex-A9 using
common clock framework. The CMU (Clock Management Unit) of Exynos4415
controls PLLs(Phase Locked Loops) and generates system clocks for CPU,
busses and function clocks for individual IPs.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2014-10-30 19:53:04 +01:00
Wolfram Sang
c8da4a0ec6 clk: samsung: drop owner assignment from platform_drivers
A platform_driver does not need to set an owner, it will be populated by the
driver core.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-10-20 16:20:22 +02:00
Mike Turquette
a797900950 Allow parent rate changes for i2s on rk3288
and rockchip as well as s3c24xx restart handlers.
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Merge tag 'v3.18-rockchip-clk2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-next

Allow parent rate changes for i2s on rk3288
and rockchip as well as s3c24xx restart handlers.
2014-10-01 11:19:10 -07:00
Heiko Stübner
e317c19470 clk: samsung: register restart handlers for s3c2412 and s3c2443
S3C2412, S3C2443 and their derivatives contain a special software-reset
register in their system-controller.

Therefore register a restart handler for those.

Tested on a s3c2416-based board, s3c2412 compile-tested.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-10-01 14:14:46 +02:00
Mike Turquette
24afc3852e Samsung clock patches for v3.18
1) non-critical fixes (without the need to push to stable)
 
 fa0111be4f clk: samsung: exynos4: remove duplicate div_core2 divider clock instantiation
 b511593d71 clk: samsung: exynos4: fix g3d clocks
 c142543001 clk: samsung: exynos4: add missing smmu_g2d clock and update comments
 22842d244a clk: samsung: exynos5260: fix typo in clock name
 e82ba578cc clk: samsung: exynos3250: fix width field of mout_mmc0/1
 59037b92f4 clk: samsung: exynos3250: fix width and shift of div_spi0_isp clock
 5ce37f2666 clk: samsung: exynos3250: fix mout_cam_blk parent list
 
 2) Clock driver extensions
 
 07ccf02ba5 dt-bindings: clk: samsung: Document the DMC domain of Exynos3250 CMU
 d0e73eaf19 ARM: dts: exynos3250: Add CMU node for DMC domain clocks
 e3c3f19bc6 clk: samsung: exynos3250: Register DMC clk provider
 4676f0aab9 clk: samsung: exynos4: add support for MOUT_HDMI and MOUT_MIXER clocks
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Merge tag 'for_3.18/samsung-clk' of git://git.kernel.org/pub/scm/linux/kernel/git/tfiga/samsung-clk into clk-next

Samsung clock patches for v3.18

1) non-critical fixes (without the need to push to stable)

fa0111be4f clk: samsung: exynos4: remove duplicate div_core2 divider clock instantiation
b511593d71 clk: samsung: exynos4: fix g3d clocks
c142543001 clk: samsung: exynos4: add missing smmu_g2d clock and update comments
22842d244a clk: samsung: exynos5260: fix typo in clock name
e82ba578cc clk: samsung: exynos3250: fix width field of mout_mmc0/1
59037b92f4 clk: samsung: exynos3250: fix width and shift of div_spi0_isp clock
5ce37f2666 clk: samsung: exynos3250: fix mout_cam_blk parent list

2) Clock driver extensions

07ccf02ba5 dt-bindings: clk: samsung: Document the DMC domain of Exynos3250 CMU
d0e73eaf19 ARM: dts: exynos3250: Add CMU node for DMC domain clocks
e3c3f19bc6 clk: samsung: exynos3250: Register DMC clk provider
4676f0aab9 clk: samsung: exynos4: add support for MOUT_HDMI and MOUT_MIXER clocks
2014-09-29 23:43:12 -07:00
Kiran Padwal
59c0621d4d clk: Remove .owner field for driver
There is no need to init .owner field.

Based on the patch from Peter Griffin <peter.griffin@linaro.org>
"mmc: remove .owner field for drivers using module_platform_driver"

This patch removes the superflous .owner field for drivers which
use the module_platform_driver API, as this is overriden in
platform_driver_register anyway."

Signed-off-by: Kiran Padwal <kiran.padwal@smartplayin.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-09-25 17:43:31 -07:00
Thomas Abraham
fa0111be4f clk: samsung: exynos4: remove duplicate div_core2 divider clock instantiation
The 'div_core2' clock and the 'arm_clk' divider clocks are instances of
the same divider clock. So remove the 'arm_clk' clock instance.

Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
[tomasz.figa@gmail.com: Fixed remaining occurences of 'arm_clk'.]
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
2014-09-24 12:41:33 +02:00
Marek Szyprowski
b511593d71 clk: samsung: exynos4: fix g3d clocks
sclk_g3d clock doesn't have enable/disable bits, but the driver hijacked
g3d gate clock bits for this purpose and didn't provide real g3d clock
at all. This patch fixes this issue by adding proper definition for g3d
clock and removing incorrect access to GATE_IP_G3D register in sclk_g3d.
In addition CLK_SET_RATE_PARENT flag is dropped from sclk_g3d, because
it does not make any sense and most likely has been added by mistake.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
[tomasz.figa@gmail.com: Adjusted commit message.]
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
2014-09-22 14:31:19 +02:00
Marek Szyprowski
4676f0aab9 clk: samsung: exynos4: add support for MOUT_HDMI and MOUT_MIXER clocks
This patch adds support for exporting mout_hdmi and mout_mixer to device
tree. Access to those clocks is required to correctly setup HDMI module
on Exynos 4210 and 4x12 SoCs.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
CC: Mike Turquette <mturquette@linaro.org>
CC: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
2014-09-22 14:31:14 +02:00
Marek Szyprowski
c142543001 clk: samsung: exynos4: add missing smmu_g2d clock and update comments
This patch adds missing smmu_g2d clock implementation and updates
comment about Exynos4 clocks from 278-282 range. Those clocks are
available on all Exynos4 SoC series, so the misleading comment has been
removed.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
2014-09-22 14:31:06 +02:00
Krzysztof Kozlowski
e3c3f19bc6 clk: samsung: exynos3250: Register DMC clk provider
Add clock provider for clocks in DMC domain including EPLL and BPLL. The
DMC clocks are necessary for Exynos3 devfreq driver.

The DMC clock domain uses different address space (0x105C0000) than
standard clock domain (0x10030000 - 0x10050000). The difference is huge
enough to add new DT node for the clock provider, rather than extending
existing address space.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
2014-09-22 14:28:49 +02:00
Chander Kashyap
22842d244a clk: samsung: exynos5260: fix typo in clock name
The parent name added in parent list as
mout_phyclk_mipi_dphy_4l_m_txbyte_clkhs_p, is different
than the defined parent due to typo.

Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Chander Kashyap <k.chander@samsung.com>
Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
2014-09-22 14:28:45 +02:00
Pankaj Dubey
e82ba578cc clk: samsung: exynos3250: fix width field of mout_mmc0/1
As per Exynos3250 user manual mmc0/1 mux selection has 4 bit wide.

Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
2014-09-22 14:28:38 +02:00
Pankaj Dubey
59037b92f4 clk: samsung: exynos3250: fix width and shift of div_spi0_isp clock
Update shift and width field of div_spi0_isp clock as per Exynos3250
user manual.

Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
2014-09-22 14:28:35 +02:00
Pankaj Dubey
5ce37f2666 clk: samsung: exynos3250: fix mout_cam_blk parent list
As per user manual of Exynos3250 SRC_CAM can select
div_cam_blk_320 if it's value is 0xC, so placing
div_cam_blk_320 at proper index in parent list of mout_cam_blk.

Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
2014-09-22 14:28:28 +02:00
Linus Torvalds
b3345d7c57 ARM: SoC platform changes for 3.17
This is the bulk of new SoC enablement and other platform changes for 3.17:
 
 * Samsung S5PV210 has been converted to DT and multiplatform
 * Clock drivers and bindings for some of the lower-end i.MX 1/2 platforms
 * Kirkwood, one of the popular Marvell platforms, is folded into the
   mvebu platform code, removing mach-kirkwood.
 * Hwmod data for TI AM43xx and DRA7 platforms.
 * More additions of Renesas shmobile platform support
 * Removal of plat-samsung contents that can be removed with S5PV210 being
   multiplatform/DT-enabled and the other two old platforms being removed.
 
 New platforms (most with only basic support right now):
 
 * Hisilicon X5HD2 settop box chipset is introduced
 * Mediatek MT6589 (mobile chipset) is introduced
 * Broadcom BCM7xxx settop box chipset is introduced
 
 + as usual a lot other pieces all over the platform code.
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Merge tag 'soc-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform changes from Olof Johansson:
 "This is the bulk of new SoC enablement and other platform changes for
  3.17:

   - Samsung S5PV210 has been converted to DT and multiplatform
   - Clock drivers and bindings for some of the lower-end i.MX 1/2
     platforms
   - Kirkwood, one of the popular Marvell platforms, is folded into the
     mvebu platform code, removing mach-kirkwood
   - Hwmod data for TI AM43xx and DRA7 platforms
   - More additions of Renesas shmobile platform support
   - Removal of plat-samsung contents that can be removed with S5PV210
     being multiplatform/DT-enabled and the other two old platforms
     being removed

  New platforms (most with only basic support right now):

   - Hisilicon X5HD2 settop box chipset is introduced
   - Mediatek MT6589 (mobile chipset) is introduced
   - Broadcom BCM7xxx settop box chipset is introduced

  + as usual a lot other pieces all over the platform code"

* tag 'soc-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (240 commits)
  ARM: hisi: remove smp from machine descriptor
  power: reset: move hisilicon reboot code
  ARM: dts: Add hix5hd2-dkb dts file.
  ARM: debug: Rename Hi3716 to HIX5HD2
  ARM: hisi: enable hix5hd2 SoC
  ARM: hisi: add ARCH_HISI
  MAINTAINERS: add entry for Broadcom ARM STB architecture
  ARM: brcmstb: select GISB arbiter and interrupt drivers
  ARM: brcmstb: add infrastructure for ARM-based Broadcom STB SoCs
  ARM: configs: enable SMP in bcm_defconfig
  ARM: add SMP support for Broadcom mobile SoCs
  Documentation: arm: misc updates to Marvell EBU SoC status
  Documentation: arm: add URLs to public datasheets for the Marvell Armada XP SoC
  ARM: mvebu: fix build without platforms selected
  ARM: mvebu: add cpuidle support for Armada 38x
  ARM: mvebu: add cpuidle support for Armada 370
  cpuidle: mvebu: add Armada 38x support
  cpuidle: mvebu: add Armada 370 support
  cpuidle: mvebu: rename the driver from armada-370-xp to mvebu-v7
  ARM: mvebu: export the SCU address
  ...
2014-08-08 11:14:29 -07:00
Linus Torvalds
e4ca4308c0 The clock framework changes for 3.17 are mostly additions of new clock
drivers and fixes/enhancements to existing clock drivers. There are also
 some non-critical fixes and improvements to the framework core.
 
 Changes to the clock framework core include:
 * improvements to printks on errors
 * flattening the previously hierarchal structure of per-clock entries
   in debugfs
 * allow per-clock debugfs entries that are specific to a particular
   clock driver
 * configure initial clock parent and/or initial clock rate from Device
   Tree
 * several feature enhancements to the composite clock type
 * misc fixes
 
 New clock drivers added include:
 * TI Palmas PMIC
 * Allwinner A23 SoC
 * Qualcomm APQ8084 and IPQ8064 SoCs
 * Rockchip rk3188, rk3066 and rk3288 SoCs
 * STMicroelectronics STiH407 SoC
 * Cirrus Logic CLPS711X SoC
 
 Many fixes, feature enhancements and further clock tree support for
 existing clock drivers also were merged, such as Samsung's "ARMCLK down"
 power saving feature for their Exynos4 & Exynos5 SoCs.
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Merge tag 'clk-for-linus-3.17' of git://git.linaro.org/people/mike.turquette/linux

Pull clock framework updates from Mike Turquette:
 "The clock framework changes for 3.17 are mostly additions of new clock
  drivers and fixes/enhancements to existing clock drivers.  There are
  also some non-critical fixes and improvements to the framework core.

  Changes to the clock framework core include:
   - improvements to printks on errors
   - flattening the previously hierarchal structure of per-clock entries
     in debugfs
   - allow per-clock debugfs entries that are specific to a particular
     clock driver
   - configure initial clock parent and/or initial clock rate from
     Device Tree
   - several feature enhancements to the composite clock type
   - misc fixes

  New clock drivers added include:
   - TI Palmas PMIC
   - Allwinner A23 SoC
   - Qualcomm APQ8084 and IPQ8064 SoCs
   - Rockchip rk3188, rk3066 and rk3288 SoCs
   - STMicroelectronics STiH407 SoC
   - Cirrus Logic CLPS711X SoC

  Many fixes, feature enhancements and further clock tree support for
  existing clock drivers also were merged, such as Samsung's "ARMCLK
  down" power saving feature for their Exynos4 & Exynos5 SoCs"

* tag 'clk-for-linus-3.17' of git://git.linaro.org/people/mike.turquette/linux: (86 commits)
  clk: Add missing of_clk_set_defaults export
  clk: checking wrong variable in __set_clk_parents()
  clk: Propagate any error return from debug_init()
  clk: clps711x: Add DT bindings documentation
  clk: Add CLPS711X clk driver
  clk: st: Use round to closest divider flag
  clk: st: Update frequency tables for fs660c32 and fs432c65
  clk: st: STiH407: Support for clockgenA9
  clk: st: STiH407: Support for clockgenD0/D2/D3
  clk: st: STiH407: Support for clockgenC0
  clk: st: Add quadfs reset handling
  clk: st: Add polarity bit indication
  clk: st: STiH407: Support for clockgenA0
  clk: st: STiH407: Support for A9 MUX Clocks
  clk: st: STiH407: Support for Flexgen Clocks
  clk: st: Adds Flexgen clock binding
  clk: st: Remove uncessary (void *) cast
  clk: st: use static const for clkgen_pll_data tables
  clk: st: use static const for stm_fs tables
  clk: st: Update ST clock binding documentation
  ...
2014-08-04 11:44:20 -07:00
Thomas Abraham
ca5b402938 clk: samsung: register exynos5420 apll/kpll configuration data
Register the PLL configuration data for APLL and KPLL on Exynos5420. This
configuration data table specifies PLL coefficients for supported PLL
clock speeds when a 24MHz clock is supplied as the input clock source
for these PLLs.

Cc: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Reviewed-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Tested-by: Arjun K.V <arjun.kv@samsung.com>
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
2014-07-26 02:50:15 +02:00
Vikas Sajjan
e9d529562a clk: samsung: exynos5420: Setup clocks before system suspend
Prior to suspending the system, we need to ensure that certain
clock source and gate registers are unmasked.

while at it, add these clks to save/restore list also.

Signed-off-by: Vikas Sajjan <vikas.sajjan@samsung.com>
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
2014-07-26 02:50:06 +02:00
Krzysztof Kozlowski
305cfab0ba clk: samsung: Make of_device_id array const
Array of struct of_device_id may be be const as expected by
of_match_table field and of_find_matching_node_and_match() function.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
2014-07-26 02:49:58 +02:00
Krzysztof Kozlowski
45c5b0a690 clk: samsung: exynos3250: Enable ARMCLK down feature
Enable ARMCLK down feature on Exynos3250 SoC. The frequency of
ARMCLK will be reduced upon entering idle mode (WFI or WFE).

The feature behaves like very fast cpufreq ondemand governor.

The patch uses simillar settings as Exynos5250 (clk-exynos5250.c),
except it disables clock up feature.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
2014-07-26 02:49:34 +02:00
Krzysztof Kozlowski
42773b28e7 clk: samsung: exynos4: Enable ARMCLK down feature
Enable ARMCLK down feature on all Exynos4 SoCs. The frequency of
ARMCLK will be reduced upon entering idle mode (WFI or WFE).

The feature behaves like very fast cpufreq ondemand governor. In idle
mode this reduces energy consumption on full frequency chosen by
cpufreq governor by approximately:
 - Trats2:  6.5% (153 mA -> 143 mA)
 - Trats:  33.0% (180 mA -> 120 mA)
 - Gear1:  27.0% (180 mA -> 130 mA)

The patch uses simillar settings as Exynos5250 (clk-exynos5250.c),
except it disables clock up feature and on Exynos4412 ARMCLK down is
enabled for all 4 cores.

Tested on Trats board (Exynos4210), Trats2 board (Exynos4412) and
Samsung Gear 1 (Exynos4212).

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Tested-by: Daniel Drake <drake@endlessm.com>
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
2014-07-26 02:49:31 +02:00
Tomasz Figa
1e832e5101 clk: samsung: Add driver to control CLKOUT line on Exynos SoCs
This patch introduces a driver that handles configuration of CLKOUT pin
of Exynos SoCs that can be used to output certain clocks from inside of
the SoC to a dedicated output pin.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
2014-07-26 02:47:10 +02:00
Tomasz Figa
01f7ec260a clk: samsung: exynos4: Add CLKOUT clock hierarchy
This patch adds definitions of clocks that are used to drive clock
output signals of particular CMU sub-blocks that are then fed to PMU and
handled by Exynos CLKOUT driver added in further patch.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
2014-07-26 02:47:10 +02:00
Tomasz Figa
800c9797ad clk: samsung: exynos4: Add missing CPU/DMC clock hierarchy
This patch adds missing definitions of clocks from CPU and DMC clock
domains, which are necessary to properly represent CLKOUT clock hierarchy
added in further patch.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
2014-07-26 02:42:36 +02:00
Tomasz Figa
f1ff47454b clk: samsung: s5pv210: Remove legacy board support
Since there is no more support for board files, this patch removes
legacy non-DT support from the clock driver as well, including
unnecessary clkdev aliases.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-07-19 04:32:19 +09:00