Commit Graph

1446 Commits

Author SHA1 Message Date
Heiko Stübner
fe94f974e9 clk: rockchip: protect critical clocks from getting disabled
The clock-tree contains clocks that should never get disabled automatically.
One example are the base ACLKs, the base supplies for all peripherals.

Therefore add a structure similar to the sunxi clock-tree to protect these
special clocks from being disabled.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Doug Anderson <dianders@chromium.org>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-09-02 15:03:18 -07:00
Heiko Stübner
1a4b181995 clk: rockchip: make rockchip_clk_register_branch static
It is only used locally in clk/rockchip/clk.c and thus can be static.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-09-02 15:03:17 -07:00
Heiko Stübner
b2155a71a7 clk: rockchip: implement the fraction divider branch type
Rockchip SoCs may provide fraction dividers for some clocks, mostly for
i2s and uarts. In contrast to the other registers, these do not use
the hiword-mask paradigm, but instead split the register into the upper
16 bit for the nominator and the lower 16 bit for the denominator.

The common clock framework got a generic fractional divider clock type
recently that can accomodate this setting easily. All currently known
fraction dividers have a separate gate too, therefore implement the
divider as composite using the ops-struct from fractional_divider clock
and add the gate if necessary.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-09-02 15:03:17 -07:00
Kuninori Morimoto
4abe240878 clk: shmobile: add missing 0x0100 for SDCKCR
10cdfe9f32
(clk: shmobile: Add R-Car Gen2 clocks support)
added R-Car Gen2 clock support via DT for v3.14.

But, cpg_sd01_div_table is missing
"0x0100: x 1/8" division ratio.
This patch fixes hidden bug.
It is based on R-Car H2 v0.7, R-Car M2 v0.9.

Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Reported-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-09-02 15:03:16 -07:00
Mike Turquette
105299381d cpufreq: kirkwood: use the powersave multiplexer
The powersave clock acts like a multiplexer for the cpu, selecting
either the clock signal derived from the cpu pll or from the ddr clock.
This patch changes powersave from a gate clock to a mux clock to better
reflect this behavior.

This is a cleaner approach whereby the frequency of the cpu always
matches the rate of powersave_clk. The cpufreq driver for the kirkwood
platform no longer must parse this behavior out of various calls to
clk_enable and clk_disable, but can instead simply select the parent cpu
it wants when changing rate. Likewise when requesting the cpu rate we
need only query powersave_clk's rate through the usual call to
clk_get_rate.

The new clock data and corresponding changes to the cpufreq driver are
combined into this single commit to avoid a git bisect issue where this
cpufreq driver fails to work properly between the commit that updates
the kirkwood clock driver and the commit that changes how the cpufreq
driver uses that clock.

Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-09-02 15:02:54 -07:00
Boris BREZILLON
e8531ac8b2 clk: at91: fix num_parents test in at91sam9260 slow clk implementation
The slow clk block provided by at91sam9260 and derived SoCs should always
have 2 parents.

Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-09-02 14:44:41 -07:00
Mike Turquette
e8e8a9b0d8 clk: mvebu: powersave clock is a multiplexer
Kirkwood is unique among the mvebu SoCs for having a clock multiplexer
that feeds into the cpu. This multiplexer can select either the cpu pll
or the ddr clock as its input signal, allowing for a choice between
performance and power savings.

This patch introduces the code needed to register the clock multiplexer
on Kirkwood SoCs but does not include the clock data to actually
register the clock. That will be done in a follow-up patch which is
necessary to prevent breaking git bisect.

Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-09-01 17:43:52 -07:00
Mike Turquette
87e392164a clk: mvebu: share locks between gate clocks
Refactor mvebu_clk_gating_setup() to use a common spinlock instead of a
unique lock for every instance of a struct clk_gating_ctrl object. This
will be used later for a separate mux clock type that shares a register
with gate clock types and needs to use the same lock to protect access
to the register.

Cc: Andrew Lunn <andrew@lunn.ch>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-09-01 17:43:52 -07:00
Hisashi Nakamura
8de078f189 clk: shmobile: Add r8a7794 support
Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-08-27 08:40:54 +09:00
Nicolas Ferre
e657ce689a AT91 reset, poweroff and ram drivers
This tag holds the various new drivers introduced to move code that used to be
 in mach-at91 over to the proper frameworks.
 
 These files are the reboot and poweroff code for all AT91 SoCs but the RM9200,
 and the ram controller driver is not doing much at the time, except for grabing
 the RAM clock in order to leave it always enabled.
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Merge tag 'at91-drivers-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux

Pull AT91 reset, poweroff and ram drivers from Maxime Ripard:
 "This tag holds the various new drivers introduced to move code that used to be
  in mach-at91 over to the proper frameworks.

  These files are the reboot and poweroff code for all AT91 SoCs but the RM9200,
  and the ram controller driver is not doing much at the time, except for grabing
  the RAM clock in order to leave it always enabled."

Conflicts:
	arch/arm/mach-at91/Kconfig
2014-08-25 15:35:26 +02:00
Nishanth Menon
20411dad75 clk: ti: dra7-atl: Provide error check for incoming parameters in set_rate
Check for valid parameters in check rate. Else, we end up getting
errors.

This occurs as part of the inital clock tree update of child clock
nodes where new_rate could be 0 for non functional clocks.

Fixes: 9ac33b0ce8 (" CLK: TI: Driver for DRA7 ATL (Audio Tracking Logic)")
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2014-08-21 18:04:16 +03:00
Nishanth Menon
2f10325176 clk: ti: divider: Provide error check for incoming parameters in set_rate
Check for valid parameters in check rate. Else, we end up getting errors
like:
[    0.000000] Division by zero in kernel.
[    0.000000] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.17.0-rc1 #1
[    0.000000] [<c0015160>] (unwind_backtrace) from [<c0011978>] (show_stack+0x10/0x14)
[    0.000000] [<c0011978>] (show_stack) from [<c055f5f4>] (dump_stack+0x78/0x94)
[    0.000000] [<c055f5f4>] (dump_stack) from [<c02e17cc>] (Ldiv0+0x8/0x10)
[    0.000000] [<c02e17cc>] (Ldiv0) from [<c047d228>] (ti_clk_divider_set_rate+0x14/0x14c)
[    0.000000] [<c047d228>] (ti_clk_divider_set_rate) from [<c047a938>] (clk_change_rate+0x138/0x180)
[    0.000000] [<c047a938>] (clk_change_rate) from [<c047a908>] (clk_change_rate+0x108/0x180)

This occurs as part of the inital clock tree update of child clock nodes
where new_rate could be 0 for non functional clocks.

Fixes: b4761198bf ("CLK: ti: add support for ti divider-clock")
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2014-08-21 18:04:16 +03:00
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
44c916d58b ARM: SoC cleanups for 3.17
This merge window brings a good size of cleanups on various
 platforms. Among the bigger ones:
 
 * Removal of Samsung s5pc100 and s5p64xx platforms. Both of these have
   lacked active support for quite a while, and after asking around nobody
   showed interest in keeping them around. If needed, they could be
   resurrected in the future but it's more likely that we would prefer
   reintroduction of them as DT and multiplatform-enabled platforms
   instead.
 * OMAP4 controller code register define diet. They defined a lot of registers
   that were never actually used, etc.
 * Move of some of the Tegra platform code (PMC, APBIO, fuse, powergate)
   to drivers/soc so it can be shared with 64-bit code. This also converts them
   over to traditional driver models where possible.
 * Removal of legacy gpio-samsung driver, since the last users have been
   removed (moved to pinctrl)
 
 Plus a bunch of smaller changes for various platforms that sort of
 dissapear in the diffstat for the above. clps711x cleanups, shmobile
 header file refactoring/moves for multiplatform friendliness, some misc
 cleanups, etc.
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Merge tag 'cleanup-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanups from Olof Johansson:
 "This merge window brings a good size of cleanups on various platforms.
  Among the bigger ones:

   - Removal of Samsung s5pc100 and s5p64xx platforms.  Both of these
     have lacked active support for quite a while, and after asking
     around nobody showed interest in keeping them around.  If needed,
     they could be resurrected in the future but it's more likely that
     we would prefer reintroduction of them as DT and
     multiplatform-enabled platforms instead.

   - OMAP4 controller code register define diet.  They defined a lot of
     registers that were never actually used, etc.

   - Move of some of the Tegra platform code (PMC, APBIO, fuse,
     powergate) to drivers/soc so it can be shared with 64-bit code.
     This also converts them over to traditional driver models where
     possible.

   - Removal of legacy gpio-samsung driver, since the last users have
     been removed (moved to pinctrl)

  Plus a bunch of smaller changes for various platforms that sort of
  dissapear in the diffstat for the above.  clps711x cleanups, shmobile
  header file refactoring/moves for multiplatform friendliness, some
  misc cleanups, etc"

* tag 'cleanup-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (117 commits)
  drivers: CCI: Correct use of ! and &
  video: clcd-versatile: Depend on ARM
  video: fix up versatile CLCD helper move
  MAINTAINERS: Add sdhci-st file to ARCH/STI architecture
  ARM: EXYNOS: Fix build breakge with PM_SLEEP=n
  MAINTAINERS: Remove Kirkwood
  ARM: tegra: Convert PMC to a driver
  soc/tegra: fuse: Set up in early initcall
  ARM: tegra: Always lock the CPU reset vector
  ARM: tegra: Setup CPU hotplug in a pure initcall
  soc/tegra: Implement runtime check for Tegra SoCs
  soc/tegra: fuse: fix dummy functions
  soc/tegra: fuse: move APB DMA into Tegra20 fuse driver
  soc/tegra: Add efuse and apbmisc bindings
  soc/tegra: Add efuse driver for Tegra
  ARM: tegra: move fuse exports to soc/tegra/fuse.h
  ARM: tegra: export apb dma readl/writel
  ARM: tegra: Use a function to get the chip ID
  ARM: tegra: Sort includes alphabetically
  ARM: tegra: Move includes to include/soc/tegra
  ...
2014-08-08 11:00:26 -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
Sylwester Nawrocki
b11a6face1 clk: Add missing of_clk_set_defaults export
The of_clk_set_defaults() function is used in subsystems which can
be built as module. Add the missing symbol export entry so there
is no build errors like:
"ERROR: "of_clk_set_defaults" [drivers/i2c/i2c-core.ko] undefined!".

Fixes commit: 86be408bfb
"clk: Support for clock parents and rates assigned from device tree"

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-08-04 09:48:39 -07:00
Dan Carpenter
6ba19bf066 clk: checking wrong variable in __set_clk_parents()
There is a cut and paste bug so we check "pclk" instead of "clk".

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-08-01 10:47:26 -07:00
Mike Turquette
d7d3d26fa5 Samsung clock patches for 3.17
1) non-critical fixes (without need to push to stable):
 
 d5e136a clk: samsung: Register clk provider only after registering its all clocks
 305cfab clk: samsung: Make of_device_id array const
 e9d5295 clk: samsung: exynos5420: Setup clocks before system suspend
 f65d518 clk: samsung: trivial: Correct typo in author's name
 
 2) Exynos CLKOUT driver:
 
 800c979 clk: samsung: exynos4: Add missing CPU/DMC clock hierarchy
 01f7ec2 clk: samsung: exynos4: Add CLKOUT clock hierarchy
 1e832e5 clk: samsung: Add driver to control CLKOUT line on Exynos SoCs
 d19bb39 ARM: dts: exynos: Update PMU node with CLKOUT related data
 
 3) Clock hierarchy extensions:
 
 17d3f1d clk: exynos4: Add PPMU IP block source clocks.
 ca5b402 clk: samsung: register exynos5420 apll/kpll configuration data
 
 4) ARM CLKDOWN functionality enablement for Exynos4 and 3250:
 
 42773b2 clk: samsung: exynos4: Enable ARMCLK down feature
 45c5b0a clk: samsung: exynos3250: Enable ARMCLK down feature
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Merge tag 'for_3.17/samsung-clk' of git://git.kernel.org/pub/scm/linux/kernel/git/tfiga/samsung-clk into clk-next-samsung

Samsung clock patches for 3.17

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

d5e136a clk: samsung: Register clk provider only after registering its all clocks
305cfab clk: samsung: Make of_device_id array const
e9d5295 clk: samsung: exynos5420: Setup clocks before system suspend
f65d518 clk: samsung: trivial: Correct typo in author's name

2) Exynos CLKOUT driver:

800c979 clk: samsung: exynos4: Add missing CPU/DMC clock hierarchy
01f7ec2 clk: samsung: exynos4: Add CLKOUT clock hierarchy
1e832e5 clk: samsung: Add driver to control CLKOUT line on Exynos SoCs
d19bb39 ARM: dts: exynos: Update PMU node with CLKOUT related data

3) Clock hierarchy extensions:

17d3f1d clk: exynos4: Add PPMU IP block source clocks.
ca5b402 clk: samsung: register exynos5420 apll/kpll configuration data

4) ARM CLKDOWN functionality enablement for Exynos4 and 3250:

42773b2 clk: samsung: exynos4: Enable ARMCLK down feature
45c5b0a clk: samsung: exynos3250: Enable ARMCLK down feature
2014-07-31 09:32:18 -07:00
Peter Ujfalusi
a74c52def9 clk: ti: clk-7xx: Correct ABE DPLL configuration
ABE DPLL frequency need to be lowered from 361267200
to 180633600 to facilitate the ATL requironments.
The dpll_abe_m2x2_ck clock need to be set to double
of ABE DPLL rate in order to have correct clocks
for audio.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-31 08:36:58 -07:00
Chris Brand
abeab450bf clk: Propagate any error return from debug_init()
If the .debug_init op is provided, it will be called by
clk_debug_create_one(). If debug_init() returns an error code,
clk_debug_create_one() will return -ENOMEM, regardless of the
value returned from debug_init(). Tweak the code to return
the actual value returned by debug_init() instead.

Signed-off-by: Chris Brand <chris.brand@linaro.org>
Reviewed-by: Matt Porter <mporter@linaro.org>
Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-29 17:13:48 -07:00
Alexander Shiyan
631c534789 clk: Add CLPS711X clk driver
This adds the clock driver for Cirrus Logic CLPS711X series SoCs
using common clock infrastructure.
Designed primarily for migration CLPS711X subarch for multiplatform & DT,
for this as the "OF" and "non-OF" calls implemented.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-28 23:30:46 -07:00
Gabriel FERNANDEZ
eee40bb433 clk: st: Use round to closest divider flag
This patch uses CLK_DIVIDER_ROUND_CLOSEST flag to specify
the divider has to round to closest div.

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Acked-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-28 22:37:16 -07:00
Gabriel FERNANDEZ
f1a788ff1f clk: st: Update frequency tables for fs660c32 and fs432c65
This patch extend the range of possible frequencies of the fs432c65
and fs660c32 Quad frequency synthesizers.

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Acked-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-28 22:37:09 -07:00
Gabriel FERNANDEZ
aaa65d7777 clk: st: STiH407: Support for clockgenA9
The patch added support for DT registration of ClockGenA9
It includes c32 type PLL.

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Signed-off-by: Olivier Bideau <olivier.bideau@st.com>
Acked-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-28 22:37:04 -07:00
Gabriel FERNANDEZ
58de9b8e7f clk: st: STiH407: Support for clockgenD0/D2/D3
The patch added support for ClockGenD0/D2/D3
It includes one 660 Quadfs.

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Signed-off-by: Olivier Bideau <olivier.bideau@st.com>
Acked-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-28 22:36:59 -07:00
Gabriel FERNANDEZ
51306d56ba clk: st: STiH407: Support for clockgenC0
The patch added support for DT registration of ClockGenC0
It includes 2 c32 type PLL and a 660 Quadfs.

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Signed-off-by: Olivier Bideau <olivier.bideau@st.com>
Acked-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-28 22:36:54 -07:00
Gabriel FERNANDEZ
fc755c8bc8 clk: st: Add quadfs reset handling
This patch adds the support of quadfs reset handling.

Signed-off-by: Olivier Bideau <olivier.bideau@st.com>
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Acked-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-28 22:36:49 -07:00
Gabriel FERNANDEZ
8f26df8432 clk: st: Add polarity bit indication
This patch introduces polarity indication for pll power up bit
and for standby bit in order to have same code between stih416
and stih407 boards.

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Acked-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-28 22:36:44 -07:00
Gabriel FERNANDEZ
eee8f78327 clk: st: STiH407: Support for clockgenA0
The patch added support for DT registration of ClockGenA0
It includes c32 type PLL.

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Signed-off-by: Olivier Bideau <olivier.bideau@st.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-28 22:36:34 -07:00
Gabriel FERNANDEZ
13e6f2da1d clk: st: STiH407: Support for A9 MUX Clocks
The patch supports the A9-mux clocks used by ClockGenA9

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Signed-off-by: Olivier Bideau <olivier.bideau@st.com>
Acked-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-28 22:36:29 -07:00
Gabriel FERNANDEZ
b116517055 clk: st: STiH407: Support for Flexgen Clocks
This patch is the Flexgen implementation reusing as much as possible
of Common Clock Framework functions.

The idea is to have an instance of "struct flexgen" per output clock.
It represents the clock cross bar (by a mux element), and the pre and final dividers
(using dividers and gates elements).

Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Olivier Bideau <olivier.bideau@st.com>
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Acked-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-28 22:36:24 -07:00
Gabriel FERNANDEZ
79bb8aa16f clk: st: Remove uncessary (void *) cast
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-28 22:36:13 -07:00
Gabriel FERNANDEZ
dc4febef2d clk: st: use static const for clkgen_pll_data tables
converts clkgen_pll_data tables into static const

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-28 22:36:06 -07:00
Gabriel FERNANDEZ
4abb1b4055 clk: st: use static const for stm_fs tables
converts stm_fs tables into static const

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-28 22:35:55 -07:00
Emilio López
381c1ccd65 clk: sunxi: staticize structures and arrays
There are some structs and arrays on the driver that are not used
anywhere else. Let's mark them as static.

Signed-off-by: Emilio López <emilio@elopez.com.ar>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-28 15:39:22 -07:00
Emilio López
89a9456d6e clk: sunxi: add __iomem markings to MMIO pointers
This commit adds __iomem thoughout the sunxi clock driver, in places
where it was ommited. This cleans most of the sparse warnings we
are getting here.

Signed-off-by: Emilio López <emilio@elopez.com.ar>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-28 15:39:05 -07:00
Arnd Bergmann
5be42f334b Merge branch 'clk-rockchip' of git://git.linaro.org/people/mike.turquette/linux into next/soc
This is a dependency for the rk3288 DT updates, the branch should
first get merged through Mike's clk git.

* 'clk-rockchip' of git://git.linaro.org/people/mike.turquette/linux:
  ARM: rockchip: Select ARCH_HAS_RESET_CONTROLLER
  clk: rockchip: add clock controller for rk3288
  dt-bindings: add documentation for rk3288 cru
  clk: rockchip: add clock driver for rk3188 and rk3066 clocks
  dt-bindings: add documentation for rk3188 clock and reset unit
  clk: rockchip: add reset controller
  clk: rockchip: add clock type for pll clocks and pll used on rk3066
  clk: rockchip: add basic infrastructure for clock branches
  clk: composite: improve rate_hw sanity check logic
  clk: composite: allow read-only clocks
  clk: composite: support determine_rate using rate_ops->round_rate + mux_ops->set_parent

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-07-28 14:02:13 +02:00
Arnd Bergmann
39fbf98408 mvebu SoC changes for v3.17 (round 4)
- Armada XP
     - Fix return value check in pmsu code
     - Document URLs for new public datasheets (Thanks, Marvell & free-electrons!)
 
  - Armada 370/38x
     - Add cpuidle support
 
  - mvebu
     - Fix build when no platforms are selected
     - Update EBU SoC status in docs
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Merge tag 'mvebu-soc-3.17-4' of git://git.infradead.org/linux-mvebu into next/soc

Merge "mvebu SoC changes for v3.17 (round 4)" from Jason Cooper:

 - Armada XP
    - Fix return value check in pmsu code
    - Document URLs for new public datasheets (Thanks, Marvell & free-electrons!)

 - Armada 370/38x
    - Add cpuidle support

 - mvebu
    - Fix build when no platforms are selected
    - Update EBU SoC status in docs

* tag 'mvebu-soc-3.17-4' of git://git.infradead.org/linux-mvebu: (21 commits)
  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
  ARM: mvebu: make the snoop disabling optional in mvebu_v7_pmsu_idle_prepare()
  ARM: mvebu: use a local variable to store the resume address
  ARM: mvebu: make the cpuidle initialization more generic
  ARM: mvebu: rename the armada_370_xp symbols to mvebu_v7 in pmsu.c
  ARM: mvebu: use the common function for Armada 375 SMP workaround
  ARM: mvebu: add a common function for the boot address work around
  ARM: mvebu: sort the #include of pmsu.c in alphabetic order
  ARM: mvebu: split again armada_370_xp_pmsu_idle_enter() in PMSU code
  ARM: mvebu: fix return value check in armada_xp_pmsu_cpufreq_init()
  clk: mvebu: extend clk-cpu for dynamic frequency scaling
  ARM: mvebu: extend PMSU code to support dynamic frequency scaling
  ...

Conflicts:
	arch/arm/mach-mvebu/Kconfig
	drivers/cpuidle/cpuidle-armada-370-xp.c

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-07-26 18:17:08 +02:00
Arnd Bergmann
96bda115ec Samsung S5PV210 DT support for v3.17
- support common clock framework for s5pv210 clock
 - add generic PHY driver on s5pv210 to support it via DT
 - add dt support for s5pv210-goni, smdkc110, smdkv210 and torbreck boards
 - remove board files from mach-s5pv210 and unused codes
 - enable multiplatform for s5pv210
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Merge tag 's5pv210-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc

Merge "Samsung S5PV210 DT support for v3.17" from Kukjin Kim:

- support common clock framework for s5pv210 clock
- add generic PHY driver on s5pv210 to support it via DT
- add dt support for s5pv210-goni, smdkc110, smdkv210 and torbreck boards
- remove board files from mach-s5pv210 and unused codes
- enable multiplatform for s5pv210

* tag 's5pv210-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  clk: samsung: s5pv210: Remove legacy board support
  ARM: SAMSUNG: Remove remaining legacy code
  gpio: samsung: Remove legacy support of S5PV210
  ARM: S5PV210: Enable multi-platform build support
  cpufreq: s5pv210: Make the driver multiplatform aware
  ARM: S5PV210: Register cpufreq platform device
  ARM: S5PV210: move debug-macro.S into the common space
  ARM: S5PV210: Untie PM support from legacy code
  ARM: S5PV210: Remove support for board files
  ARM: dts: Add Device tree for s5pc110/s5pv210 boards
  ARM: dts: Add Device tree for s5pv210 SoC
  ARM: S5PV210: Add board file for boot using Device Tree
  phy: Add support for S5PV210 to the Exynos USB 2.0 PHY driver
  clk: samsung: Add S5PV210 Audio Subsystem clock driver
  ARM: SAMSUNG: Remove legacy clock code
  serial: samsung: Remove support for legacy clock code
  cpufreq: s3c24xx: Remove some dead code
  ARM: S5PV210: Migrate clock handling to Common Clock Framework
  clk: samsung: Add clock driver for S5PV210 and compatible SoCs

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-07-26 12:01:27 +02:00
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
Mike Turquette
3cc5aba415 Allwinner clocks additions for 3.17
This pull request adds support for the clocks found in the newly supported
 Allwinner A23 clocks.
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Merge tag 'sunxi-clocks-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into clk-next-sunxi

Allwinner clocks additions for 3.17

This pull request adds support for the clocks found in the newly supported
Allwinner A23 clocks.
2014-07-25 17:45:30 -07:00
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
Mike Turquette
9ae1400588 qcom clock changes for 3.17
These patches add support for a handful of Qualcomm's SoC clock
 controllers: APQ8084 gcc and mmcc, IPQ8064 gcc, and APQ8064.
 There's also a small collection of bug fixes that aren't critical
 -rc worthy regressions because the consumer drivers aren't present
 or using the buggy clocks and one optimization for HDMI.
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Merge tag 'qcom-clocks-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom into clk-next-msm

qcom clock changes for 3.17

These patches add support for a handful of Qualcomm's SoC clock
controllers: APQ8084 gcc and mmcc, IPQ8064 gcc, and APQ8064.
There's also a small collection of bug fixes that aren't critical
-rc worthy regressions because the consumer drivers aren't present
or using the buggy clocks and one optimization for HDMI.
2014-07-25 15:41:19 -07:00
Mike Turquette
07761baff0 Merge branch 'for-v3.17/ti-clk-driver' of github.com:t-kristo/linux-pm into clk-next-ti 2014-07-25 15:37:40 -07:00
Sylwester Nawrocki
86be408bfb clk: Support for clock parents and rates assigned from device tree
This patch adds helper functions to configure clock parents and rates
as specified through 'assigned-clock-parents', 'assigned-clock-rates'
DT properties for a clock provider or clock consumer device.
The helpers are now being called by the bus code for the platform, I2C
and SPI busses, before the driver probing and also in the clock core
after registration of a clock provider.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-25 15:16:27 -07:00
Mike Turquette
09575693a2 Merge branch 'clk-rockchip' into clk-next 2014-07-23 19:41:39 -07:00
Olof Johansson
f37ac9e5a4 exynos cpuidle update for v3.17
- add callbacks exynos_suspend() and exynos_powered_up()
   for support cpuidle through mcpm
 - skip exynos_cpuidle for exynos5420 because is uses
   cpuidle-big-liggle generic cpuidle driver
 - add generic functions to calculate cpu number is used
   for pmu and this is required for exynos5420 multi-cluster
 - add of_device_id structure for big.LITTLE cpuidle and
   add "samsung,exynos5420" compatible string for exynos5420
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Merge tag 'exynos-cpuidle' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc

Merge "Samsung exynos cpuidle update for v3.17" from Kukjin Kim:

- add callbacks exynos_suspend() and exynos_powered_up()
  for support cpuidle through mcpm
- skip exynos_cpuidle for exynos5420 because is uses
  cpuidle-big-liggle generic cpuidle driver
- add generic functions to calculate cpu number is used
  for pmu and this is required for exynos5420 multi-cluster
- add of_device_id structure for big.LITTLE cpuidle and
  add "samsung,exynos5420" compatible string for exynos5420

* tag 'exynos-cpuidle' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: EXYNOS: populate suspend and powered_up callbacks for mcpm
  ARM: EXYNOS: do not allow cpuidle registration for exynos5420
  cpuidle: big.LITTLE: init driver for exynos5420
  cpuidle: big.LITTLE: Add ARCH_EXYNOS entry in config
  ARM: EXYNOS: add generic function to calculate cpu number
  cpuidle: big.LITTLE: add of_device_id structure
  + Linux 3.16-rc5

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-19 15:03:08 -07:00
Olof Johansson
f57c0e049a Samsung cleanup for v3.17
: Most of them are for exynos SoCs, remove useless
 codes and update for PMU consolidation.
 
 - remove unnecessary header file in mach-exynos/pmu.c
 - remove unused code in mach-exynos/common.h
 - remove mach-exynos/regs-pmu.h dependency from PD
 - remove file path from comment section in mach-exynos
 
 - move SYSREG definitions into mach-exynos/regs-sys.h
 
 - add mapping PMU base address via DT for PMU cleanup
 
 - use staic in mach-exynos/common.h
 - update Samsung UART config options for low-level debug
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Merge tag 'samsung-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/cleanup

Merge "Samsung cleanup for v3.17" from Kukjin Kim:

Most of them are for exynos SoCs, remove useless codes and update for
PMU consolidation.

- remove unnecessary header file in mach-exynos/pmu.c
- remove unused code in mach-exynos/common.h
- remove mach-exynos/regs-pmu.h dependency from PD
- remove file path from comment section in mach-exynos

- move SYSREG definitions into mach-exynos/regs-sys.h

- add mapping PMU base address via DT for PMU cleanup

- use staic in mach-exynos/common.h
- update Samsung UART config options for low-level debug

* tag 'samsung-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: EXYNOS: Add support for mapping PMU base address via DT
  ARM: EXYNOS: Remove "linux/bug.h" from pmu.c
  ARM: EXYNOS: Remove regs-pmu.h header dependency from pm_domain
  ARM: EXYNOS: Remove file path from comment section
  ARM: EXYNOS: Move SYSREG definition into sys-reg specific file
  ARM: EXYNOS: Make exynos machine_ops as static
  ARM: EXYNOS: Remove unused code in common.h
  ARM: debug: Update Samsung UART config options
  + Linux 3.16-rc5

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-19 15:01:08 -07:00
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
Tomasz Figa
9978f28f69 clk: samsung: Add S5PV210 Audio Subsystem clock driver
This patch adds a driver for clock controller being a part of Audio
Subsystem present on S5PV210 and compatible SoCs. It is used to provide
clocks for other IP blocks of this subsystem.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-07-19 04:25:08 +09:00
Mateusz Krawczuk
841586082d clk: samsung: Add clock driver for S5PV210 and compatible SoCs
This patch adds new, Common Clock Framework-based clock driver for Samsung
S5PV210 and compatible SoCs. The driver is just added, without enabling it yet.

Signed-off-by: Mateusz Krawczuk <m.krawczuk@partner.samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
[t.figa: Added support for other SoC variants and clock output. Fixed
remaining minor issues.]
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-07-19 04:24:42 +09:00
Thierry Reding
7232398abc ARM: tegra: Convert PMC to a driver
This commit converts the PMC support code to a platform driver. Because
the boot process needs to call into this driver very early, also set up
a minimal environment via an early initcall.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-07-17 14:58:43 +02:00
Thierry Reding
306a7f9139 ARM: tegra: Move includes to include/soc/tegra
In order to not clutter the include/linux directory with SoC specific
headers, move the Tegra-specific headers out into a separate directory.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-07-17 13:26:47 +02:00
Thomas Petazzoni
ee2d8ea1e9 clk: mvebu: extend clk-cpu for dynamic frequency scaling
This commit extends the existing clk-cpu driver used on Marvell Armada
XP platforms to support the dynamic frequency scaling of the CPU
clock. Non-dynamic frequency change was already supported (and used
before secondary CPUs are started), but the dynamic frequency change
requires a completely different procedure.

In order to achieve this, the clk_cpu_set_rate() function is reworked
to handle two separate cases:

 - The case where the clock is enabled, which is the new dynamic
   frequency change code, implemented in clk_cpu_on_set_rate(). This
   part will be used for cpufreq activities.

 - The case where the clock is disabled, which is the existing
   frequency change code, moved in clk_cpu_off_set_rate(). This part
   is already used to set the clock frequency of the secondary CPUs
   before starting them.

In order to implement the dynamic frequency change function, we need
to access the PMU DFS registers, which are outside the currently
mapped "Clock Complex" registers, so a new area of registers is now
mapped. This affects the Device Tree binding, but we are careful to do
it in a backward-compatible way (by allowing the second pair of
registers to be non-existent, and in this case, ensuring
clk_cpu_on_set_rate() returns an error).

Note that technically speaking, the clk_cpu_on_set_rate() does not do
the entire procedure needed to change the frequency dynamically, as it
involves touching a number of PMSU registers. This is done through a
clock notifier registered by the PMSU driver in followup commits.

Cc: <devicetree@vger.kernel.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1404920715-19834-4-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-07-16 12:58:38 +00:00
Stephen Boyd
e216ce60a9 clk: qcom: Add support for APQ8064 multimedia clocks
The APQ8064 multimedia clock controller is fairly similar to the
8960 multimedia clock controller, except that gfx2d0/1 has been
removed and the gfx3d frequency is slightly faster when using the
newly introduced PLL15. We also add vcap clocks and a couple new
TV clocks.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2014-07-15 16:39:03 -07:00
Stephen Boyd
d8c25d3a1a clk: qcom: pll: Add support for configuring SR PLLs
Some SR type PLLs need to be configured for a certain rate when
linux boots. Add support for these types of PLLs so that we can
program PLL15's rate on apq8064.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2014-07-15 16:39:02 -07:00
Stephen Boyd
f87dfcabc6 clk: qcom: mdp_lut_clk is a child of mdp_src
The mdp_lut_clk isn't a child of the mdp_clk. Instead it's the
child of the mdp_src clock. Fix it.

Fixes: 6d00b56fe "clk: qcom: Add support for MSM8960's multimedia clock controller (MMCC)"
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2014-07-15 16:39:01 -07:00
Stephen Boyd
5b6b7490af clk: qcom: Fix PLL rate configurations
Sometimes we need to program PLLs with a fixed rate
configuration during driver probe. Doing this after we register
the PLLs with the clock framework causes the common clock
framework to assume the rate of the PLLs are 0. This causes all
sorts of problems for rate recalculations because the common
clock framework caches the rate once at registration time unless
a flag is set to always recalculate the rates.

Split the qcom_cc_probe() function into two pieces, map and
everything else, so that drivers which need to configure some
PLL rates or otherwise twiddle bits in the clock controller can
do so before registering clocks. This allows us to properly
detect the rates of PLLs that are programmed at boot.

Fixes: 49fc825f0c "clk: qcom: Consolidate common probe code"
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2014-07-15 16:39:00 -07:00
Stephen Boyd
ff20783f7b clk: qcom: Fix MN frequency tables, parent map, and jpegd
Clocks that don't have a pre-divider don't list any pre-divider
in their frequency tables, but their tables are initialized using
aggregate initializers. Use tagged initializers so we properly
assign the m and n values for each frequency. Furthermore, the
mmcc_pxo_pll8_pll2_pll3 array improperly mapped the second
element to pll2 instead of pll8, causing the clock driver to
recalculate the wrong rate for any clocks using this array along
with a rate that uses pll2. Plus the .num_parents field is 3
instead of 4 so you can't even switch the parent to pll3. Finally
I noticed that the jpegd clock improperly indicates that the
pre-divider width is only 2, when it's actually 4 bits wide.

Fixes: 6d00b56fe "clk: qcom: Add support for MSM8960's multimedia clock controller (MMCC)"
Tested-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2014-07-15 16:39:00 -07:00
Stephen Boyd
404c1ff67d clk: qcom: Support bypass RCG configuration
In the case of HDMI clocks, we want to bypass the RCG's ability
to divide the output clock and pass through the parent HDMI PLL
rate. Add a simple set of clk_ops to configure the RCG to do
this. This removes the need to keep adding more frequency entries
to the tv_src clock whenever we want to support a new rate.

Tested-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2014-07-15 16:38:59 -07:00
Kumar Gala
24d8fba44a clk: qcom: Add support for IPQ8064's global clock controller (GCC)
Add a driver for the global clock controller found on IPQ8064 based
platforms. This should allow most non-multimedia device drivers to probe
and control their clocks.

This is currently missing clocks for USB HSIC and networking devices.

Signed-off-by: Kumar Gala <galak@codeaurora.org>
Signed-off-by: Andy Gross <agross@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2014-07-15 16:38:58 -07:00
Georgi Djakov
2b46cd23a5 clk: qcom: Add APQ8084 Multimedia Clock Controller (MMCC) support
Add support for the multimedia clock controller found on the APQ8084
based platforms. This will allow the multimedia device drivers to
control their clocks.

Signed-off-by: Georgi Djakov <gdjakov@mm-sol.com>
[sboyd: Rework parent mapping to avoid conflicts]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2014-07-15 16:38:57 -07:00
Alexandre Belloni
b736bcb3d8 clk: at91: remove the useless CLK_IGNORE_UNUSED flag
The CLK_IGNORE_UNUSED flag was added on all the system clocks because of the
ddrck. Now that it is handled by the ram controller driver, we can drop it.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-07-15 11:54:09 +02:00
Chen-Yu Tsai
6c1d66f0da clk: sunxi: sun6i-a31-apb0-gates: Add A23 APB0 support
This patch adds "allwinner,sun8i-a23-apb0-gates-clk", a A23 specific
compatible to the sun6i-a31-apb0-gates clock driver, along with the
gate bitmap.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-07-15 08:53:24 +02:00
Chen-Yu Tsai
b72efd0f65 clk: sunxi: sun6i-apb0-gates: use bitmaps for valid gate indices
sun6i-apb0-gates uses the "clock-indices" DT property to indicate
valid gate bits or holes in between. However, the rest of sunxi
clock drivers use bitmaps for this purpose.

This patch modifies sun6i-apb0-gates to use bitmaps as well, to be
consistent with the sunxi platform. Also add the missing call to
clk_register_clkdev, so system clock lookups will work.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-07-15 08:52:11 +02:00
Linus Torvalds
502fde1a0a This batch of fixes is for a handful of clock drivers from Allwinner,
Samsung, ST & TI. Most of them are of the "this hardware won't work
 without this fix" variety, including patches that fix platforms that did
 not boot under certain configurations. Other fixes are the result of
 changes to the clock core introduced in 3.15 that had subtle impacts on
 the clock drivers.
 
 There are no fixes to the clock framework core in this pull request.
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Merge tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux

Pull clock driver fixes from Mike Turquette:
 "This batch of fixes is for a handful of clock drivers from Allwinner,
  Samsung, ST & TI.  Most of them are of the "this hardware won't work
  without this fix" variety, including patches that fix platforms that
  did not boot under certain configurations.  Other fixes are the result
  of changes to the clock core introduced in 3.15 that had subtle
  impacts on the clock drivers.

  There are no fixes to the clock framework core in this pull request"

* tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux:
  clk: spear3xx: Set proper clock parent of uart1/2
  clk: spear3xx: Use proper control register offset
  clk: qcom: HDMI source sel is 3 not 2
  clk: sunxi: fix devm_ioremap_resource error detection code
  clk: s2mps11: Fix double free corruption during driver unbind
  clk: ti: am43x: Fix boot with CONFIG_SOC_AM33XX disabled
  clk: exynos5420: Remove aclk66_peric from the clock tree description
  clk/exynos5250: fix bit number for tv sysmmu clock
  clk: s3c64xx: Hookup SPI clocks correctly
  clk: samsung: exynos4: Remove SRC_MASK_ISP gates
  clk: samsung: add more aliases for s3c24xx
  clk: samsung: fix several typos to fix boot on s3c2410
  clk: ti: set CLK_SET_RATE_NO_REPARENT for ti,mux-clock
  clk: ti: am43x: Fix boot with CONFIG_SOC_AM33XX disabled
  clk: ti: dra7: return error code in failure case
  clk: ti: apll: not allocating enough data
2014-07-13 12:21:04 -07:00
Heiko Stübner
b9e4ba5416 clk: rockchip: add clock controller for rk3288
Add the clock tree definition for the new rk3288 SoC.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-By: Max Schwarz <max.schwarz@online.de>
Tested-By: Max Schwarz <max.schwarz@online.de>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-13 12:17:10 -07:00
Heiko Stübner
2c14736c75 clk: rockchip: add clock driver for rk3188 and rk3066 clocks
This adds a clock driver that handles the specific muxes, dividers and gates
of rk3188 and rk3066 SoCs.

The structure of the clock list resembles the arrangement of their
counterparts in the clock architecture diagrams found in the SoC
documentation.

Clocks exported to the clock provider are currently limited to well known
or measured ones. So additional clock exports may be necessary in the future.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-By: Max Schwarz <max.schwarz@online.de>
Tested-By: Max Schwarz <max.schwarz@online.de>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-13 12:17:09 -07:00
Heiko Stübner
85fa0c7f8d clk: rockchip: add reset controller
All Rockchip SoCs at least down to the ARM9-based RK28xx include the reset-
controller for SoC peripherals in their clock controller.
While the older SoCs (ARM9 and Cortex-A8) use a regular scheme to change
register values, the Cortex-A9 SoCs use a hiword-mask making locking unecessary.
To be compatible with both schemes the reset controller takes a flag to
decide which scheme to use, similar to the other HIWORD_MASK flags used in the
clock framework.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-By: Max Schwarz <max.schwarz@online.de>
Tested-By: Max Schwarz <max.schwarz@online.de>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-13 12:17:07 -07:00
Heiko Stübner
90c5902540 clk: rockchip: add clock type for pll clocks and pll used on rk3066
All known Rockchip SoCs down to the RK28xx (ARM9) use a similar pattern to
handle their plls:
                       |--\
xin32k ----------------|mux\
xin24m -----| pll |----|pll|--- pll output
       \---------------|src/
                       |--/

The pll output is sourced from 1 of 3 sources, the actual pll being one of
them. To change the pll frequency it is imperative to remux it to another
source beforehand. This is done by adding a clock-listener to the pll that
handles the remuxing before and after the rate change.

The output mux is implemented as a separate clock to make use of already
existing common-clock features for disabling the pll if one of the other
two sources is used.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-By: Max Schwarz <max.schwarz@online.de>
Tested-By: Max Schwarz <max.schwarz@online.de>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-13 12:17:06 -07:00
Heiko Stübner
a245fecbb8 clk: rockchip: add basic infrastructure for clock branches
This adds infrastructure for registering clock branches. On Rockchip SoCs
most clock branches are a combination of mux,divider and gate components,
thus a composite clock is used when appropriate.

Clock branches are supposed to be declared in an array using the COMPOSITE*
or MUX, etc makros defined in the header and then registered using
rockchip_clk_register_branches.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-By: Max Schwarz <max.schwarz@online.de>
Tested-By: Max Schwarz <max.schwarz@online.de>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-13 12:17:06 -07:00
Mike Turquette
5a994e151f clk: composite: improve rate_hw sanity check logic
The function pointer population and sanity checking logic got a bit ugly
with the advent of the .determine_rate callback. Clean it up.

Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-13 12:17:05 -07:00
Heiko Stübner
0c02cf2f1c clk: composite: allow read-only clocks
This allows readl-only composite clocks by making mux_ops->set_parent and
divider_ops->round_rate/set_rate optional.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-By: Max Schwarz <max.schwarz@online.de>
Tested-By: Max Schwarz <max.schwarz@online.de>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-13 12:17:04 -07:00
Boris BREZILLON
3eb635f1ca clk: composite: support determine_rate using rate_ops->round_rate + mux_ops->set_parent
In case the rate_hw does not implement determine_rate, but only round_rate
we fallback to best_parent selection if mux_hw is present and support
reparenting.

This also fixes a rate calculation problem when using the standard div and
mux ops, as in this case currently only the mux->determine_rate is used
in the composite rate calculation.
So when for example the composite clock has two parents at 600 and 800MHz,
the requested rate is 75MHz, which the divider could provide, without this
change the rate would be set 600MHz ignoring the divider completely.
This may be way out of spec for the component.

Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
[heiko@sntech.de: fixed output return a rate instead of the diff]
Acked-By: Max Schwarz <max.schwarz@online.de>
Tested-By: Max Schwarz <max.schwarz@online.de>
Tested-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-13 12:16:08 -07:00
Mike Turquette
dae7df47ab Merge branch 'clk-fixes' into clk-next 2014-07-13 07:56:45 -07:00
Thomas Gleixner
449437778b clk: spear3xx: Set proper clock parent of uart1/2
The uarts only work when the parent is ras_ahb_clk. The stale 3.5
based ST tree does this in the board file.

Add it to the clk init function. Not pretty, but the mess there is
amazing anyway.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-13 07:12:11 -07:00
Thomas Gleixner
15ebb05248 clk: spear3xx: Use proper control register offset
The control register is at offset 0x10, not 0x0. This is wreckaged
since commit 5df33a62c (SPEAr: Switch to common clock framework).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-13 07:11:40 -07:00
Georgi Djakov
5424e10281 clk: qcom: Add APQ8084 clocks for SATA, PCIe and UFS
Add the necessary clocks for SATA, PCIe and UFS to the
APQ8084 global clock controller (GCC). This will allow
the above device drivers to control their clocks.

Signed-off-by: Georgi Djakov <gdjakov@mm-sol.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2014-07-11 13:23:33 -07:00
Georgi Djakov
0282465320 clk: qcom: Add APQ8084 Global Clock Controller support
This patch adds support for the global clock controller found on
the APQ8084 based devices. This includes UART, I2C, SPI etc.

Signed-off-by: Georgi Djakov <gdjakov@mm-sol.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2014-07-11 13:22:00 -07:00
Stephen Boyd
5f775498bd clk: qcom: Fully support apq8064 global clock control
Add in the handful of new clocks and introduce a new reset table
with the few new resets.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2014-07-11 13:21:22 -07:00
Srinivas Kandagatla
7f9b72ae97 clk: qcom: add clocks necessary for apq8064 sdcc
This patch adds clocks necessary for SD card controller on apq8064 SOC.
Without this patch the clocks are not visible to the sdcc driver.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Kumar Gala <galak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2014-07-11 13:21:21 -07:00
Pratyush Anand
22a6923043 ARM: SPEAr13xx: Fix pcie clock name
Follow dt clock naming convention for PCIe clocks.

Signed-off-by: Pratyush Anand <pratyush.anand@st.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
[viresh: fixed logs/cclist]
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-11 06:50:16 -07:00
Arun Kumar K
c0fb262bf2 clk: exynos5420: Add IDs for clocks used in PD mfc
Adds IDs for MUX clocks to be used by power domain for MFC
for doing re-parenting while pd on/off.

Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Signed-off-by: Shaik Ameer Basha <shaik.ameer@samsung.com>
Acked-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-07-11 08:03:59 +09:00
Mike Turquette
0c4565de5f tegra clk updates for 3.17 including PLLE fixes for xusb
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Merge tag 'tegra-clk-3.17-1' of git://nv-tegra.nvidia.com/user/pdeschrijver/linux into clk-next-tegra

tegra clk updates for 3.17 including PLLE fixes for xusb
2014-07-08 05:34:22 -07:00
Mikko Perttunen
0e548d50b9 clk: tegra: Use XUSB-compatible SATA PLL sequence
Use a sequence for enabling hardware control of the SATA PLL
that works both when using the SATA lane with SATA and when
using it with XUSB.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
2014-07-08 11:29:55 +03:00
Chen-Yu Tsai
cd6eb534fb clk: sunxi: Fix gate indexing for sun6i-a31-apb0-gates
sun6i-a31-apb0-gates supports using clock-indices for holes between
individual gates. However, the driver passes the number of gates
registered in clk_data->clk_num, which of_clk_src_onecell_get uses
to recognize the range of valid indices a consumer can use.

This patch makes the driver pass the maximum gate index + 1, so
of_clk_src_onecell_get does not complain about indices greater
than gates registered.

This was tested on the A23 SoC, which has a similar APB0 clock,
but has holes for gates to removed IP blocks.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-07-07 10:53:52 +02:00
Chen-Yu Tsai
57a1fbf284 clk: sunxi: Add A23 APB0 divider clock support
The A23 has an almost identical PRCM clock tree. The difference in
the APB0 clock is the smallest divisor is 1, instead of 2.

This patch adds a separate sun8i-a23-apb0-clk driver to support it.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-07-07 10:46:21 +02:00
Chen-Yu Tsai
515c1a4bdc clk: sunxi: Add A23 clocks support
The clock control unit on the A23 is similar to the one found on the A31.

The AHB1, APB1, APB2 gates on the A23 are almost identical to the ones
on the A31, but some outputs are missing.

The main CPU PLL (PLL1) however is like that on older Allwinner SoCs,
such as the A10 or A20, but the N factor starts from 1 instead of 0.

This patch adds support for PLL1 and all the basic clock muxes and gates.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-07-04 12:05:17 +02:00
Chen-Yu Tsai
ea5671bffb clk: sunxi: Add support for table-based divider clocks
A few of the clock modules have odd dividers, such as
the 2 lowest dividers being the same (2), or have the
same divider when the highest bit is set.

This patch adds support for optional divider tables,
so the clock framework will know about the odd values.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-07-04 12:05:13 +02:00
Chen-Yu Tsai
9a5e6c7eb5 clk: sunxi: Support factor clocks with N factor starting not from 0
The PLLs on newer Allwinner SoC's, such as the A31 and A23, have a
N multiplier factor that starts from 1, not 0.

This patch adds an option to the factor clk driver's config data
structures to specify the base value of N.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-07-04 12:05:12 +02:00
Chen-Yu Tsai
70eab199fa clk: sunxi: move "ahb_sdram" to protected clock list
With sunxi_gates clocks registered with clkdev, we can use the
protected clocks list to enable the "ahb_sdram" clock, instead
of looking for it and adding CLK_IGNORE_UNUSED inline in the
clock setup code.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-07-04 12:05:09 +02:00
Chen-Yu Tsai
d14e47056c clk: sunxi: register clock gates with clkdev
The new important clock protect code requires the clocks be
registered with clkdev. This was missing for sunxi_gates
type clocks.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-07-04 12:04:55 +02:00
Mike Turquette
cdae1730d0 Merge branch 'clk-fixes' into clk-next 2014-07-03 11:55:42 -07:00
Stephen Boyd
c556bcddc7 clk: qcom: HDMI source sel is 3 not 2
The HDMI PLL input to the tv mux is supposed to be 3, not 2. Fix
the code so that we can properly select the HDMI PLL.

Fixes: 6d00b56fe "clk: qcom: Add support for MSM8960's multimedia clock controller (MMCC)"
Reported-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-02 16:33:18 -07:00
Peter De Schrijver
fb2b3c9f68 clk: define and export clk_debugs_add_file
Define and export a new function clk_debugs_add_file which adds a file
to a existing clock's debugfs directory. This can be used by clock
providers to add debugfs entries which are not related to a specific clock
type. Examples include the ability to measure the rate of a clock. It can
also be used by modules to create new debugfs entries. This is useful if you
want to expose features for testing which can potentially cause system
instability such as allowing to change a clock's rate from userspace.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-02 16:15:55 -07:00
Mike Turquette
4924b8a2fa Samsung clock fixes for v3.16.
This pull request contains fixes for various issues found while testing
 -rc versions of Linux 3.16. Mostly two kinds of patches:
 
 * Fixes of incorrectly defined clocks
 
 1) a37c82a clk: samsung: exynos4: Remove SRC_MASK_ISP gates
 
     Issue present since v3.10.
 
 2) 0b1643b clk/exynos5250: fix bit number for tv sysmmu clock
 
     Issue present since v3.16.
 
 3) 44ff025 clk: exynos5420: Remove aclk66_peric from the clock tree description
 
     Issue present since v3.11.
 
 * Adding things missed by original patches
 
 1) cec1cde clk: samsung: fix several typos to fix boot on s3c2410
 2) 34ece9e clk: samsung: add more aliases for s3c24xx
 
     Both issues present since the driver was added in v3.16.
 
 3) a92dda4 clk: s3c64xx: Hookup SPI clocks correctly
 
     Issue present since v3.12.
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Merge tag 'for_3.16/samsung-clk-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tfiga/samsung-clk into clk-fixes-samsung

Samsung clock fixes for v3.16.

This pull request contains fixes for various issues found while testing
-rc versions of Linux 3.16. Mostly two kinds of patches:

* Fixes of incorrectly defined clocks

1) a37c82a clk: samsung: exynos4: Remove SRC_MASK_ISP gates

    Issue present since v3.10.

2) 0b1643b clk/exynos5250: fix bit number for tv sysmmu clock

    Issue present since v3.16.

3) 44ff025 clk: exynos5420: Remove aclk66_peric from the clock tree description

    Issue present since v3.11.

* Adding things missed by original patches

1) cec1cde clk: samsung: fix several typos to fix boot on s3c2410
2) 34ece9e clk: samsung: add more aliases for s3c24xx

    Both issues present since the driver was added in v3.16.

3) a92dda4 clk: s3c64xx: Hookup SPI clocks correctly

    Issue present since v3.12.
2014-07-02 10:05:56 -07:00
Karol Wrona
89ed7e6e68 clk: s2mps11: Fix clk_ops
s2mps11 clocks had registered callbacks for prepare ,unprepare and is_enabled.
During disabling unused clocks the lack of is_prepared caused that unused
s2mps11 clocks were not unprepared and stayed active.

Regmap_read is cached so it can be called in is_prepare callback
to achieve this information. Enabled field was removed from struct s2mps11_clk.

Signed-off-by: Karol Wrona <k.wrona@samsung.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-02 09:44:47 -07:00
Alexandre Belloni
4da66b631f clk: at91: main: warn when the main crystal frequency is not set
When the main crystal frequency is not set, the main clock is approximated using
the MAINF value in the CKGR_MCFR register. Warn the user in that case.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris BREZILLON <boris.brezillon@overkiz.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-02 09:00:52 -07:00
Roger Quadros
94e72ae5db CLK: ti: dra7: Initialize USB_DPLL
USB_DPLL must be initialized and locked at boot so that
USB modules can work.

Also program USB_DLL_M2 output to half rate.

CC: Mike Turquette <mturquette@linaro.org>
CC: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2014-07-02 17:08:26 +03:00
Mike Turquette
5c726dcdd2 Merge branch 'for-v3.16-rc/ti-clk-drv' of github.com:t-kristo/linux-pm into clk-fixes-ti 2014-07-01 23:41:56 -07:00
Himangi Saraogi
c3dcac875e clk: sunxi: fix devm_ioremap_resource error detection code
devm_ioremap_resource returns an ERR_PTR value, not NULL, on failure.

A simplified version of the semantic match that finds this problem is as
follows:

// <smpl>
@@
expression e,e1;
statement S;
@@

*e = devm_ioremap_resource(...);
if (!e1) S

// </smpl>

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Acked-by Boris BREZILLON <boris.brezillon@free-electrons.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-01 23:37:34 -07:00
Krzysztof Kozlowski
2a96dfa49c clk: s2mps11: Fix double free corruption during driver unbind
After unbinding the driver memory was corrupted by double free of
clk_lookup structure. This lead to OOPS when re-binding the driver
again.

The driver allocated memory for 'clk_lookup' with devm_kzalloc. During
driver removal this memory was freed twice: once by clkdev_drop() and
second by devm code.

Kernel panic log:
[   30.839284] Unable to handle kernel paging request at virtual address 5f343173
[   30.846476] pgd = dee14000
[   30.849165] [5f343173] *pgd=00000000
[   30.852703] Internal error: Oops: 805 [#1] PREEMPT SMP ARM
[   30.858166] Modules linked in:
[   30.861208] CPU: 0 PID: 1 Comm: bash Not tainted 3.16.0-rc2-00239-g94bdf617b07e-dirty #40
[   30.869364] task: df478000 ti: df480000 task.ti: df480000
[   30.874752] PC is at clkdev_add+0x2c/0x38
[   30.878738] LR is at clkdev_add+0x18/0x38
[   30.882732] pc : [<c0350908>]    lr : [<c03508f4>]    psr: 60000013
[   30.882732] sp : df481e78  ip : 00000001  fp : c0700ed8
[   30.894187] r10: 0000000c  r9 : 00000000  r8 : c07b0e3c
[   30.899396] r7 : 00000002  r6 : df45f9d0  r5 : df421390  r4 : c0700d6c
[   30.905906] r3 : 5f343173  r2 : c0700d84  r1 : 60000013  r0 : c0700d6c
[   30.912417] Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
[   30.919534] Control: 10c53c7d  Table: 5ee1406a  DAC: 00000015
[   30.925262] Process bash (pid: 1, stack limit = 0xdf480240)
[   30.930817] Stack: (0xdf481e78 to 0xdf482000)
[   30.935159] 1e60:                                                       00001000 df6de610
[   30.943321] 1e80: df7f4558 c0355650 c05ec6ec c0700eb0 df6de600 df7f4510 dec9d69c 00000014
[   30.951480] 1ea0: 00167b48 df6de610 c0700e30 c0713518 00000000 c0700e30 dec9d69c 00000006
[   30.959639] 1ec0: 00167b48 c02c1b7c c02c1b64 df6de610 c07aff48 c02c0420 c06fb150 c047cc20
[   30.967798] 1ee0: df6de610 df6de610 c0700e30 df6de644 c06fb150 0000000c dec9d690 c02bef90
[   30.975957] 1f00: dec9c6c0 dece4c00 df481f80 dece4c00 0000000c c02be73c 0000000c c016ca8c
[   30.984116] 1f20: c016ca48 00000000 00000000 c016c1f4 00000000 00000000 b6f18000 df481f80
[   30.992276] 1f40: df7f66c0 0000000c df480000 df480000 b6f18000 c011094c df47839c 60000013
[   31.000435] 1f60: 00000000 00000000 df7f66c0 df7f66c0 0000000c df480000 b6f18000 c0110dd4
[   31.008594] 1f80: 00000000 00000000 0000000c b6ec05d8 0000000c b6f18000 00000004 c000f2a8
[   31.016753] 1fa0: 00001000 c000f0e0 b6ec05d8 0000000c 00000001 b6f18000 0000000c 00000000
[   31.024912] 1fc0: b6ec05d8 0000000c b6f18000 00000004 0000000c 00000001 00000000 00167b48
[   31.033071] 1fe0: 00000000 bed83a80 b6e004f0 b6e5122c 60000010 00000001 ffffffff ffffffff
[   31.041248] [<c0350908>] (clkdev_add) from [<c0355650>] (s2mps11_clk_probe+0x2b4/0x3b4)
[   31.049223] [<c0355650>] (s2mps11_clk_probe) from [<c02c1b7c>] (platform_drv_probe+0x18/0x48)
[   31.057728] [<c02c1b7c>] (platform_drv_probe) from [<c02c0420>] (driver_probe_device+0x13c/0x384)
[   31.066579] [<c02c0420>] (driver_probe_device) from [<c02bef90>] (bind_store+0x88/0xd8)
[   31.074564] [<c02bef90>] (bind_store) from [<c02be73c>] (drv_attr_store+0x20/0x2c)
[   31.082118] [<c02be73c>] (drv_attr_store) from [<c016ca8c>] (sysfs_kf_write+0x44/0x48)
[   31.090016] [<c016ca8c>] (sysfs_kf_write) from [<c016c1f4>] (kernfs_fop_write+0xc0/0x17c)
[   31.098176] [<c016c1f4>] (kernfs_fop_write) from [<c011094c>] (vfs_write+0xa0/0x1c4)
[   31.105899] [<c011094c>] (vfs_write) from [<c0110dd4>] (SyS_write+0x40/0x8c)
[   31.112931] [<c0110dd4>] (SyS_write) from [<c000f0e0>] (ret_fast_syscall+0x0/0x3c)
[   31.120481] Code: e2842018 e584501c e1a00004 e885000c (e5835000)
[   31.126596] ---[ end trace efad45bfa3a61b05 ]---
[   31.131181] Kernel panic - not syncing: Fatal exception
[   31.136368] CPU1: stopping
[   31.139054] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G      D       3.16.0-rc2-00239-g94bdf617b07e-dirty #40
[   31.148697] [<c0016480>] (unwind_backtrace) from [<c0012950>] (show_stack+0x10/0x14)
[   31.156419] [<c0012950>] (show_stack) from [<c0480db8>] (dump_stack+0x80/0xcc)
[   31.163622] [<c0480db8>] (dump_stack) from [<c001499c>] (handle_IPI+0x130/0x15c)
[   31.170998] [<c001499c>] (handle_IPI) from [<c000862c>] (gic_handle_irq+0x60/0x68)
[   31.178549] [<c000862c>] (gic_handle_irq) from [<c0013480>] (__irq_svc+0x40/0x70)
[   31.186009] Exception stack(0xdf4bdf88 to 0xdf4bdfd0)
[   31.191046] df80:                   ffffffed 00000000 00000000 00000000 df4bc000 c06d042c
[   31.199207] dfa0: 00000000 ffffffed c06d03c0 00000000 c070c288 00000000 00000000 df4bdfd0
[   31.207363] dfc0: c0010324 c0010328 60000013 ffffffff
[   31.212402] [<c0013480>] (__irq_svc) from [<c0010328>] (arch_cpu_idle+0x28/0x30)
[   31.219783] [<c0010328>] (arch_cpu_idle) from [<c005f150>] (cpu_startup_entry+0x2c4/0x3f0)
[   31.228027] [<c005f150>] (cpu_startup_entry) from [<400086c4>] (0x400086c4)
[   31.234968] ---[ end Kernel panic - not syncing: Fatal exception

Fixes: 7cc560dea4 ("clk: s2mps11: Add support for s2mps11")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Yadwinder Singh Brar <yadi.brar@samsung.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-01 21:56:49 -07:00
Peter Ujfalusi
942d1d6749 clk: Add driver for Palmas clk32kg and clk32kgaudio clocks
Palmas class of devices can provide 32K clock(s) to be used by other devices
on the board. Depending on the actual device the provided clocks can be:
CLK32K_KG and CLK32K_KGAUDIO
or only one:
CLK32K_KG (TPS659039 for example)

Use separate compatible flags for the two 32K clock.
A system which needs or have only one of the 32k clock from
Palmas will need to add node(s) for each clock as separate section
in the dts file.
The two compatible property is:
"ti,palmas-clk32kg" for clk32kg clock
"ti,palmas-clk32kgaudio" for clk32kgaudio clock

Apart from the register control of the clocks - which is done via
the clock API there is a posibility to enable the external sleep
control. In this way the clock can be enabled/disabled on demand by the
user of the clock.

See the documentation for more details.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-01 21:37:57 -07:00
Roger Quadros
4332ec1a99 clk: ti: am43x: Fix boot with CONFIG_SOC_AM33XX disabled
Define ti_clk_register_dpll_x2() and of_ti_am3_dpll_x2_setup() if
AM43XX is defined.

Fixes the below boot issue.

[    2.157258] gpmc_l3_clk not enabled
[    2.161194] gpmc_l3_clk not enabled
[    2.164896] Division by zero in kernel.
[    2.169055] CPU: 0 PID: 321 Comm: kworker/u2:2 Tainted: G        W     3.16.0-rc1-00008-g4c0e520 #273
[    2.178880] Workqueue: deferwq deferred_probe_work_func
[    2.184459] [<c001477c>] (unwind_backtrace) from [<c001187c>] (show_stack+0x10/0x14)
[    2.192752] [<c001187c>] (show_stack) from [<c0530f28>] (dump_stack+0x80/0x9c)
[    2.200486] [<c0530f28>] (dump_stack) from [<c02c867c>] (Ldiv0+0x8/0x10)
[    2.207678] [<c02c867c>] (Ldiv0) from [<c0022da0>] (gpmc_calc_divider+0x24/0x40)
[    2.215490] [<c0022da0>] (gpmc_calc_divider) from [<c0022e20>] (gpmc_cs_set_timings+0x18/0x474)
[    2.224783] [<c0022e20>] (gpmc_cs_set_timings) from [<c003069c>] (gpmc_nand_init+0x74/0x1a8)
[    2.233791] [<c003069c>] (gpmc_nand_init) from [<c0024668>] (gpmc_probe+0x52c/0x874)
[    2.242089] [<c0024668>] (gpmc_probe) from [<c0349218>] (platform_drv_probe+0x18/0x48)
[    2.250534] [<c0349218>] (platform_drv_probe) from [<c0347d88>] (driver_probe_device+0x104/0x22c)
[    2.259988] [<c0347d88>] (driver_probe_device) from [<c03464dc>] (bus_for_each_drv+0x44/0x8c)
[    2.269087] [<c03464dc>] (bus_for_each_drv) from [<c0347c4c>] (device_attach+0x74/0x8c)
[    2.277620] [<c0347c4c>] (device_attach) from [<c0347380>] (bus_probe_device+0x88/0xb0)
[    2.286074] [<c0347380>] (bus_probe_device) from [<c0347768>] (deferred_probe_work_func+0x60/0x90)
[    2.295611] [<c0347768>] (deferred_probe_work_func) from [<c004ef50>] (process_one_work+0x1b4/0x4bc)
[    2.305288] [<c004ef50>] (process_one_work) from [<c004f3d4>] (worker_thread+0x148/0x550)
[    2.313954] [<c004f3d4>] (worker_thread) from [<c0055a48>] (kthread+0xc8/0xe4)
[    2.321628] [<c0055a48>] (kthread) from [<c000e648>] (ret_from_fork+0x14/0x2c)

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-01 20:34:37 -07:00
Sachin Kamat
6b44c854b0 clk: Fix build warnings
‘all_lists’ and ‘orphan_list’ is accessed only when DEBUG_FS is defined.
Thus, make their compilation conditional to fix the below warnings introduced
by commit 27b8d5f723 ("clk: flatten clk tree in debugfs"):
drivers/clk/clk.c:40:27: warning: ‘all_lists’ defined but not used [-Wunused-variable]
drivers/clk/clk.c:46:27: warning: ‘orphan_list’ defined but not used [-Wunused-variable]

Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com>
Cc: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-01 20:20:36 -07:00
Jingchang Lu
da788acb28 clk: ppc-corenet: Fix Section mismatch warning
WARNING: drivers/built-in.o(.data+0x10258):
Section mismatch in reference from the variable ppc_corenet_clk_driver
to the (unknown reference) .init.rodata:(unknown)
The variable ppc_corenet_clk_driver references
the (unknown reference) __initconst (unknown)
If the reference is valid then annotate the
variable with __init* or __refdata (see linux/init.h) or name the variable:
*_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console

Signed-off-by: Jingchang Lu <jingchang.lu@freescale.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-01 20:11:22 -07:00
Peter De Schrijver
9f0030c8ad clk: tegra: export clock names for debugging
When writing a module for testing or debugging purposes, there is no way to
get hold of clk handles. This patch solves this by exposing all valid clocks
as clkdev's for the virtual device tegra-clk-debug.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
2014-06-30 16:51:45 +03:00
Jonghwa Lee
17d3f1d27c clk: exynos4: Add PPMU IP block source clocks.
Exynos4 has saveral PPMUs and each of them has operation clock which
can be gated through CMU's SFR control.

New clocks are listed below. All clocks are added as a gate-typed clock.

CLK_PPMULEFT, CLK_PPMURIGHT, CLK_PPMUCAMIF, CLK_PPMUTV, CLK_PPMUMFC_L,
CLK_PPMUMFC_R, CLK_G3D, CLK_PPMUIMAGE, CLK_PPMULCD0, CLK_PPMULCD1,
CLK_PPMUFILE, CLK_PPMUGPS, CLK_PPMUDMC0, CLK_PPMUDMC1, CLK_PPMUCPU,
CLK_PPMUACP,

Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
2014-06-30 15:07:56 +02:00
Sylwester Nawrocki
d5e136a21b clk: samsung: Register clk provider only after registering its all clocks
Ensure the clock provider is not registered until after all its related
clocks were created and are ready to use. Currently there are races
possible and any (of_)clk_get() call right after a clock provider's
clk_init_cb callback call may fail.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
2014-06-30 15:07:55 +02:00
Tomasz Figa
bdfcdf18c3 Merge branch 'v3.16-samsung-clk-fixes-1' into samsung-clk-next 2014-06-30 15:06:43 +02:00
Doug Anderson
44ff0254b8 clk: exynos5420: Remove aclk66_peric from the clock tree description
The "aclk66_peric" clock is a gate clock with a whole bunch of gates
underneath it.  This big gate isn't very useful to include in our
clock tree.  If any of the children need to be turned on then the big
gate will need to be on anyway.  ...and there are plenty of other "big
gates" that aren't described in our clock tree, some of which shut off
collections of clocks that have no relationship in the hierarchy so
are hard to model.

"aclk66_peric" is causing earlyprintk problems since it gets disabled
as part of the boot process, so let's just remove it.

Strangely (and for no good reason) this clock is exported as part of
the common clock bindings.  Remove it since there are no in-kernel
device trees using it and no reason anyone out of tree should refer to
it either.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
2014-06-30 14:47:33 +02:00
Rahul Sharma
0b1643b39d clk/exynos5250: fix bit number for tv sysmmu clock
Change bit from 2 to 9 for tv (mixer) sysmmu clock.

Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Reviewed-by: Sachin Kamat <sachin.kamat@samsung.com>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
2014-06-30 14:46:36 +02:00
Charles Keepax
a92dda4bfa clk: s3c64xx: Hookup SPI clocks correctly
In the move to this clock driver the hookups for the SPI clocks were
dropped, which causes my system Cragganmore (s3c6410 based) to be unable
to locate any spibus clocks. This patch adds them back in.

When taking the clock from the epll clock (SCLK) the rates on the SPI
bus are incorrect, this needs further debugging but the hookup here
should be correct and the problem should be else where.

The USBCLK case has been dropped because this requires the USB PHY to be
enabled.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
2014-06-30 14:46:26 +02:00
Tomasz Figa
a37c82a3b3 clk: samsung: exynos4: Remove SRC_MASK_ISP gates
ISP special clocks have dedicated gating registers and so MUX SRC_MASK
register should not be used. This patch fixes the problem of
Exynos4x12-based boards freezing on system suspend, because those
mux outputs need not to be masked while suspending.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Cc: Mike Turquette <mturquette@linaro.org>
2014-06-30 14:46:03 +02:00
Vasily Khoruzhick
34ece9e610 clk: samsung: add more aliases for s3c24xx
Without these aliases clock lookup fails in s3c2410fb,
s3cmci, s3c2410-nand, s3c24xx-i2s, and i2c-s3c2410 drivers.

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
2014-06-30 14:45:56 +02:00
Vasily Khoruzhick
cec1cdea6f clk: samsung: fix several typos to fix boot on s3c2410
There's a several typos in a driver: 2410 instead of S3C2410
and wrong argument to ARRAY_SIZE(). They prevent s3c2410
from properly booting.

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
2014-06-30 14:44:16 +02:00
Peter De Schrijver
0a7eec7f59 clk: tegra124: init table updates
Ensure some clocks critical for system operation are always. Also enable csite
for JTAG debugging and set the tsensor and soc_therm clock frequencies for the
upcoming soctherm driver.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
2014-06-27 16:21:44 +03:00
Peter De Schrijver
27b8d5f723 clk: flatten clk tree in debugfs
This patch flattens the clk tree in CCF debugfs. Instead of representing the
clocks and their hierarchy as a directory structure under
/sys/kernel/debug/clk, each clock gets a single directory directly under
/sys/kernel/debug/clk. The orphans directory is replaced by a file called
clk_orphan_summary.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-06-26 12:55:04 -07:00
Stephen Boyd
d8e53c3deb clkdev: Don't print errors on probe defer
This error message can spam the logs if you have lots of probe
deferals due to missing clocks. Just silence the error in this
case because the driver should try again later.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-06-26 12:55:03 -07:00
Mikko Perttunen
cb44cc2f48 clk: tegra: Add SATA clocks to Tegra124 initialization table
This adds two clocks, SATA and SATA_OOB, to the Tegra124 clock initialization
table. The clocks are needed for working SATA support.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
2014-06-25 19:12:39 +03:00
Mikko Perttunen
37ab366251 clk: tegra: Enable hardware control of SATA PLL
This makes the SATA PLL be controlled by hardware instead of software.
This is required for working SATA support.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
2014-06-25 19:12:32 +03:00
Peter De Schrijver
167d5366c4 clk: tegra: fix vi_sensor clocks on Tegra124
vi_sensor and vi_sensor2 have a wrong hw clkid on Tegra124. Fix this by
correcting the hw clkid for Tegra124 and creating the Tegra114 vi_sensor clock
from its own data. Tegra124 was also using the wrong internal clock id.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
2014-06-25 18:40:07 +03:00
Rob Herring
a54c959d8b clk: versatile: add versatile OSC support
Versatile platforms share the same OSC programming model as Integrator
platforms. Add the necessary parameters and init functions for Versatile.

Renaming the file to clk-versatile.c as versatile is used as the family
name for ARM, Ltd. boards.

Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Mike Turquette <mturquette@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
2014-06-24 14:21:22 -05:00
Tomi Valkeinen
7d5fc85d96 clk: ti: set CLK_SET_RATE_NO_REPARENT for ti,mux-clock
When setting the rate of a clock, by default the clock framework will
change the parent of the clock to the most suitable one in
__clk_mux_determine_rate() (most suitable by looking at the clock rate).

This is a rather dangerous default, and causes problems on AM43x when
using display and ethernet. There are multiple ways to select the clock
muxes on AM43x, and some of those clock paths have the same source
clocks for display and ethernet. When changing the clock rate for the
display subsystem, the clock framework decides to change the display mux
from the dedicated display PLL to a shared PLL which is used by the
ethernet, and then changes the rate of the shared PLL, breaking the
ethernet.

As I don't think there ever is a case where we want the clock framework
to automatically change the parent clock of a clock mux, this patch sets
the CLK_SET_RATE_NO_REPARENT for all ti,mux-clocks.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2014-06-19 14:52:32 +03:00
Roger Quadros
32cff42d0d clk: ti: am43x: Fix boot with CONFIG_SOC_AM33XX disabled
Define ti_clk_register_dpll_x2() and of_ti_am3_dpll_x2_setup() if
AM43XX is defined.

Fixes the below boot issue.

[    2.157258] gpmc_l3_clk not enabled
[    2.161194] gpmc_l3_clk not enabled
[    2.164896] Division by zero in kernel.
[    2.169055] CPU: 0 PID: 321 Comm: kworker/u2:2 Tainted: G        W     3.16.0-rc1-00008-g4c0e520 #273
[    2.178880] Workqueue: deferwq deferred_probe_work_func
[    2.184459] [<c001477c>] (unwind_backtrace) from [<c001187c>] (show_stack+0x10/0x14)
[    2.192752] [<c001187c>] (show_stack) from [<c0530f28>] (dump_stack+0x80/0x9c)
[    2.200486] [<c0530f28>] (dump_stack) from [<c02c867c>] (Ldiv0+0x8/0x10)
[    2.207678] [<c02c867c>] (Ldiv0) from [<c0022da0>] (gpmc_calc_divider+0x24/0x40)
[    2.215490] [<c0022da0>] (gpmc_calc_divider) from [<c0022e20>] (gpmc_cs_set_timings+0x18/0x474)
[    2.224783] [<c0022e20>] (gpmc_cs_set_timings) from [<c003069c>] (gpmc_nand_init+0x74/0x1a8)
[    2.233791] [<c003069c>] (gpmc_nand_init) from [<c0024668>] (gpmc_probe+0x52c/0x874)
[    2.242089] [<c0024668>] (gpmc_probe) from [<c0349218>] (platform_drv_probe+0x18/0x48)
[    2.250534] [<c0349218>] (platform_drv_probe) from [<c0347d88>] (driver_probe_device+0x104/0x22c)
[    2.259988] [<c0347d88>] (driver_probe_device) from [<c03464dc>] (bus_for_each_drv+0x44/0x8c)
[    2.269087] [<c03464dc>] (bus_for_each_drv) from [<c0347c4c>] (device_attach+0x74/0x8c)
[    2.277620] [<c0347c4c>] (device_attach) from [<c0347380>] (bus_probe_device+0x88/0xb0)
[    2.286074] [<c0347380>] (bus_probe_device) from [<c0347768>] (deferred_probe_work_func+0x60/0x90)
[    2.295611] [<c0347768>] (deferred_probe_work_func) from [<c004ef50>] (process_one_work+0x1b4/0x4bc)
[    2.305288] [<c004ef50>] (process_one_work) from [<c004f3d4>] (worker_thread+0x148/0x550)
[    2.313954] [<c004f3d4>] (worker_thread) from [<c0055a48>] (kthread+0xc8/0xe4)
[    2.321628] [<c0055a48>] (kthread) from [<c000e648>] (ret_from_fork+0x14/0x2c)

Signed-off-by: Roger Quadros <rogerq@ti.com>
Reported-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2014-06-19 14:52:31 +03:00
Julia Lawall
8d2f9e8eca clk: ti: dra7: return error code in failure case
Add a returned error code in the MAX_APLL_WAIT_TRIES case.  Remove the
updating of the return variable r to 0 if MAX_APLL_WAIT_TRIES is not yet
reached, because r is already 0 at this point.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2014-06-19 14:52:31 +03:00
Dan Carpenter
6c7ee8905d clk: ti: apll: not allocating enough data
There is a cut and paste bug here which will lead to memory corruption
because we don't allocate enough data.

Fixes: 4d008589e2 ('CLK: TI: APLL: add support for omap2 aplls')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2014-06-19 14:52:31 +03:00
Linus Torvalds
dd1845af24 This pull request contains the second half the of the clk changes for
3.16. They are simply fixes and code refactoring for the OMAP clock
 drivers. The sunxi clock driver changes include splitting out the one
 mega-driver into several smaller pieces and adding support for the A31
 SoC clocks.
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Merge tag 'clk-for-linus-3.16-part2' of git://git.linaro.org/people/mike.turquette/linux

Pull more clock framework updates from Mike Turquette:
 "This contains the second half the of the clk changes for 3.16.

  They are simply fixes and code refactoring for the OMAP clock drivers.
  The sunxi clock driver changes include splitting out the one
  mega-driver into several smaller pieces and adding support for the A31
  SoC clocks"

* tag 'clk-for-linus-3.16-part2' of git://git.linaro.org/people/mike.turquette/linux: (25 commits)
  clk: sunxi: document PRCM clock compatible strings
  clk: sunxi: add PRCM (Power/Reset/Clock Management) clks support
  clk: sun6i: Protect SDRAM gating bit
  clk: sun6i: Protect CPU clock
  clk: sunxi: Rework clock protection code
  clk: sunxi: Move the GMAC clock to a file of its own
  clk: sunxi: Move the 24M oscillator to a file of its own
  clk: sunxi: Remove calls to clk_put
  clk: sunxi: document new A31 USB clock compatible
  clk: sunxi: Implement A31 USB clock
  ARM: dts: OMAP5/DRA7: use omap5-mpu-dpll-clock capable of dealing with higher frequencies
  CLK: TI: dpll: support OMAP5 MPU DPLL that need special handling for higher frequencies
  ARM: OMAP5+: dpll: support Duty Cycle Correction(DCC)
  CLK: TI: clk-54xx: Set the rate for dpll_abe_m2x2_ck
  CLK: TI: Driver for DRA7 ATL (Audio Tracking Logic)
  dt:/bindings: DRA7 ATL (Audio Tracking Logic) clock bindings
  ARM: dts: dra7xx-clocks: Correct name for atl clkin3 clock
  CLK: TI: gate: add composite interface clock to OMAP2 only build
  ARM: OMAP2: clock: add DT boot support for cpufreq_ck
  CLK: TI: OMAP2: add clock init support
  ...
2014-06-15 16:02:20 -10:00
Linus Torvalds
f9da455b93 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:

 1) Seccomp BPF filters can now be JIT'd, from Alexei Starovoitov.

 2) Multiqueue support in xen-netback and xen-netfront, from Andrew J
    Benniston.

 3) Allow tweaking of aggregation settings in cdc_ncm driver, from Bjørn
    Mork.

 4) BPF now has a "random" opcode, from Chema Gonzalez.

 5) Add more BPF documentation and improve test framework, from Daniel
    Borkmann.

 6) Support TCP fastopen over ipv6, from Daniel Lee.

 7) Add software TSO helper functions and use them to support software
    TSO in mvneta and mv643xx_eth drivers.  From Ezequiel Garcia.

 8) Support software TSO in fec driver too, from Nimrod Andy.

 9) Add Broadcom SYSTEMPORT driver, from Florian Fainelli.

10) Handle broadcasts more gracefully over macvlan when there are large
    numbers of interfaces configured, from Herbert Xu.

11) Allow more control over fwmark used for non-socket based responses,
    from Lorenzo Colitti.

12) Do TCP congestion window limiting based upon measurements, from Neal
    Cardwell.

13) Support busy polling in SCTP, from Neal Horman.

14) Allow RSS key to be configured via ethtool, from Venkata Duvvuru.

15) Bridge promisc mode handling improvements from Vlad Yasevich.

16) Don't use inetpeer entries to implement ID generation any more, it
    performs poorly, from Eric Dumazet.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1522 commits)
  rtnetlink: fix userspace API breakage for iproute2 < v3.9.0
  tcp: fixing TLP's FIN recovery
  net: fec: Add software TSO support
  net: fec: Add Scatter/gather support
  net: fec: Increase buffer descriptor entry number
  net: fec: Factorize feature setting
  net: fec: Enable IP header hardware checksum
  net: fec: Factorize the .xmit transmit function
  bridge: fix compile error when compiling without IPv6 support
  bridge: fix smatch warning / potential null pointer dereference
  via-rhine: fix full-duplex with autoneg disable
  bnx2x: Enlarge the dorq threshold for VFs
  bnx2x: Check for UNDI in uncommon branch
  bnx2x: Fix 1G-baseT link
  bnx2x: Fix link for KR with swapped polarity lane
  sctp: Fix sk_ack_backlog wrap-around problem
  net/core: Add VF link state control policy
  net/fsl: xgmac_mdio is dependent on OF_MDIO
  net/fsl: Make xgmac_mdio read error message useful
  net_sched: drr: warn when qdisc is not work conserving
  ...
2014-06-12 14:27:40 -07:00
Boris BREZILLON
c8a76cac19 clk: sunxi: add PRCM (Power/Reset/Clock Management) clks support
The PRCM (Power/Reset/Clock Management) unit provides several clock
devices:
- AR100 clk: used to clock the Power Management co-processor
- AHB0 clk: used to clock the AHB0 bus
- APB0 clk and gates: used to clk peripherals connected to the APB0 bus

Add support for these clks in a separate driver so that they can be probed
as platform devices instead of registered during early init.
This is needed to be able to probe PRCM MFD subdevices.

Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Emilio López <emilio@elopez.com.ar>
2014-06-11 10:25:02 +02:00
Maxime Ripard
efb3184c08 clk: sun6i: Protect SDRAM gating bit
Prevent the SDRAM controller from being gated by force-enabling it in the
machine code.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Emilio López <emilio@elopez.com.ar>
2014-06-11 10:25:02 +02:00
Maxime Ripard
2df73f40dc clk: sun6i: Protect CPU clock
Right now, AHB is an indirect child clock of the CPU clock. If that
happens to change, since the CPU clock has no other consumers declared
in Linux, it would be shut down, which is not really a good idea.

Prevent this by forcing it enabled.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Emilio López <emilio@elopez.com.ar>
2014-06-11 10:25:01 +02:00
Maxime Ripard
134a6690a3 clk: sunxi: Rework clock protection code
Since we start to have a lot of clocks to protect, some of them in a
few SoCs only, it becomes difficult to handle the clock protection
without having to add per machine exceptions.

Add per-SoC data to tell which clock to leave enabled.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Emilio López <emilio@elopez.com.ar>
2014-06-11 10:25:01 +02:00
Maxime Ripard
59cb10e32a clk: sunxi: Move the GMAC clock to a file of its own
Since we have a folder of our own, we can actually make use of it by
splitting the huge clock file into several sub drivers.

The gmac clock is pretty easy to deal with, since it's pretty much
isolated and doesn't have any dependency on the other clocks.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Emilio López <emilio@elopez.com.ar>
2014-06-11 09:58:44 +02:00
Maxime Ripard
ff01df28e5 clk: sunxi: Move the 24M oscillator to a file of its own
Since we have a folder of our own, we can actually make use of it by
splitting the huge clock file into several sub drivers.

The main oscillator is pretty easy to deal with, since it's pretty much
isolated.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Emilio López <emilio@elopez.com.ar>
2014-06-11 09:58:44 +02:00
Maxime Ripard
2c6fba1038 clk: sunxi: Remove calls to clk_put
Callers of clk_put must disable the clock first. This also means that
as long as the clock is enabled the driver should hold a reference to
that clock. Hence, the call to clk_put here are bogus and should be
removed.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Emilio López <emilio@elopez.com.ar>
2014-06-11 09:58:44 +02:00
Maxime Ripard
e0e7943c55 clk: sunxi: Implement A31 USB clock
The A31 USB clock slightly differ from its older counterparts, mostly
because it has a different gate for each PHY, while the older one had
a single gate for all the phy.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Emilio López <emilio@elopez.com.ar>
2014-06-11 09:58:43 +02:00
Mike Turquette
3f6eec9969 Merge branch 'for-v3.16/ti-clk-drv' of github.com:t-kristo/linux-pm into clk-next 2014-06-10 16:53:25 -07:00
Linus Torvalds
1a5700bc2d The clock framework changes for 3.16 are pretty typical: mostly clock
driver additions and fixes. There are additions to the clock core code
 for some of the basic types (e.g. the common divider type has some fixes
 and featured added to it).
 
 One minor annoyance is a last-minute dependency that wasn't handled
 quite right. ba0fae3 in this pull request depends on
 include/dt-bindings/clock/berlin2.h, which is already in your tree via
 the arm-soc pull request. Building for the berlin platform will break
 when the clk tree is built on it's own, but merged into your master
 branch everything should be fine.
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Merge tag 'clk-for-linus-3.16' of git://git.linaro.org/people/mike.turquette/linux into next

Pull clock framework updates from Mike Turquette:
 "The clock framework changes for 3.16 are pretty typical: mostly clock
  driver additions and fixes.  There are additions to the clock core
  code for some of the basic types (e.g. the common divider type has
  some fixes and featured added to it).

  One minor annoyance is a last-minute dependency that wasn't handled
  quite right.  Commit ba0fae3b06 ("clk: berlin: add core clock driver
  for BG2/BG2CD") in this pull request depends on
  include/dt-bindings/clock/berlin2.h, which is already in your tree via
  the arm-soc pull request.  Building for the berlin platform will break
  when the clk tree is built on it's own, but merged into your master
  branch everything should be fine"

* tag 'clk-for-linus-3.16' of git://git.linaro.org/people/mike.turquette/linux: (75 commits)
  mmc: sunxi: Add driver for SD/MMC hosts found on Allwinner sunxi SoCs
  clk: export __clk_round_rate for providers
  clk: versatile: free icst on error return
  clk: qcom: Return error pointers for unimplemented clocks
  clk: qcom: Support msm8974pro global clock control hardware
  clk: qcom: Properly support display clocks on msm8974
  clk: qcom: Support display RCG clocks
  clk: qcom: Return highest rate when round_rate() exceeds plan
  clk: qcom: Fix mmcc-8974's PLL configurations
  clk: qcom: Fix clk_rcg2_is_enabled() check
  clk: berlin: add core clock driver for BG2Q
  clk: berlin: add core clock driver for BG2/BG2CD
  clk: berlin: add driver for BG2x complex divider cells
  clk: berlin: add driver for BG2x simple PLLs
  clk: berlin: add driver for BG2x audio/video PLL
  clk: st: Terminate of match table
  clk/exynos4: Fix compilation warning
  ARM: shmobile: r8a7779: Add clock index macros for DT sources
  clk: divider: Fix overflow in clk_divider_bestdiv
  clk: u300: Terminate of match table
  ...
2014-06-07 20:27:30 -07:00
Nishanth Menon
b4be018921 CLK: TI: dpll: support OMAP5 MPU DPLL that need special handling for higher frequencies
MPU DPLL on OMAP5, DRA75x, DRA72x has a limitation on the maximum
frequency it can be locked at. Duty Cycle Correction circuit is used
to recover a correct duty cycle for achieving higher frequencies
(hardware internally switches output to M3 output(CLKOUTHIF) from M2
output (CLKOUT)).

So provide support to setup required data to handle Duty cycle by
the setting up the minimum frequency for DPLL. 1.4GHz is common
for all these devices and is based on Technical Reference Manual
information for OMAP5432((SWPU282U) chapter 3.6.3.3.1 "DPLLs Output
Clocks Parameters", and equivalent information from DRA75x, DRA72x
documentation(SPRUHP2E, SPRUHI2P).

Signed-off-by: Nishanth Menon <nm@ti.com>
[t-kristo@ti.com: updated for latest dpll init API call]
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2014-06-06 20:33:39 +03:00
Peter Ujfalusi
81c7e03acb CLK: TI: clk-54xx: Set the rate for dpll_abe_m2x2_ck
In order to get correct clock dividers for AESS/ABE we need to set the
dpll_abe_m2x2_ck rate to be double of dpll_abe_ck.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2014-06-06 20:33:34 +03:00
Linus Torvalds
d27050641e DeviceTree for 3.16:
- Another round of clean-up of FDT related code in architecture code.
   This removes knowledge of internal FDT details from most architectures
   except powerpc.
 - Conversion of kernel's custom FDT parsing code to use libfdt.
 - DT based initialization for generic serial earlycon. The introduction
   of generic serial earlycon support went in thru tty tree.
 - Improve the platform device naming for DT probed devices to ensure
   unique naming and use parent names instead of a global index.
 - Fix a race condition in of_update_property.
 - Unify the various linker section OF match tables and fix several
   function prototype errors.
 - Update platform_get_irq_byname to work in deferred probe cases.
 - 2 binding doc updates
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Merge tag 'devicetree-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux into next

Pull DeviceTree updates from Rob Herring:
 - Another round of clean-up of FDT related code in architecture code.
   This removes knowledge of internal FDT details from most
   architectures except powerpc.
 - Conversion of kernel's custom FDT parsing code to use libfdt.
 - DT based initialization for generic serial earlycon.  The
   introduction of generic serial earlycon support went in through the
   tty tree.
 - Improve the platform device naming for DT probed devices to ensure
   unique naming and use parent names instead of a global index.
 - Fix a race condition in of_update_property.
 - Unify the various linker section OF match tables and fix several
   function prototype errors.
 - Update platform_get_irq_byname to work in deferred probe cases.
 - 2 binding doc updates

* tag 'devicetree-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (58 commits)
  of: handle NULL node in next_child iterators
  of/irq: provide more wrappers for !CONFIG_OF
  devicetree: bindings: Document micrel vendor prefix
  dt: bindings: dwc2: fix required value for the phy-names property
  of_pci_irq: kill useless variable in of_irq_parse_pci()
  of/irq: do irq resolution in platform_get_irq_byname()
  of: Add a testcase for of_find_node_by_path()
  of: Make of_find_node_by_path() handle /aliases
  of: Create unlocked version of for_each_child_of_node()
  lib: add glibc style strchrnul() variant
  of: Handle memory@0 node on PPC32 only
  pci/of: Remove dead code
  of: fix race between search and remove in of_update_property()
  of: Use NULL for pointers
  of: Stop naming platform_device using dcr address
  of: Ensure unique names without sacrificing determinism
  tty/serial: pl011: add DT based earlycon support
  of/fdt: add FDT serial scanning for earlycon
  of/fdt: add FDT address translation support
  serial: earlycon: add DT support
  ...
2014-06-04 10:02:38 -07:00
Linus Torvalds
4dc4226f99 ACPI and power management updates for 3.16-rc1
- ACPICA update to upstream version 20140424.  That includes a
    number of fixes and improvements related to things like GPE
    handling, table loading, headers, memory mapping and unmapping,
    DSDT/SSDT overriding, and the Unload() operator.  The acpidump
    utility from upstream ACPICA is included too.  From Bob Moore,
    Lv Zheng, David Box, David Binderman, and Colin Ian King.
 
  - Fixes and cleanups related to ACPI video and backlight interfaces
    from Hans de Goede.  That includes blacklist entries for some new
    machines and using native backlight by default.
 
  - ACPI device enumeration changes to create platform devices
    rather than PNP devices for ACPI device objects with _HID by
    default.  PNP devices will still be created for the ACPI device
    object with device IDs corresponding to real PNP devices, so
    that change should not break things left and right, and we're
    expecting to see more and more ACPI-enumerated platform devices
    in the future.  From Zhang Rui and Rafael J Wysocki.
 
  - Updates for the ACPI LPSS (Low-Power Subsystem) driver allowing
    it to handle system suspend/resume on Asus T100 correctly.
    From Heikki Krogerus and Rafael J Wysocki.
 
  - PM core update introducing a mechanism to allow runtime-suspended
    devices to stay suspended over system suspend/resume transitions
    if certain additional conditions related to coordination within
    device hierarchy are met.  Related PM documentation update and
    ACPI PM domain support for the new feature.  From Rafael J Wysocki.
 
  - Fixes and improvements related to the "freeze" sleep state. They
    affect several places including cpuidle, PM core, ACPI core, and
    the ACPI battery driver.  From Rafael J Wysocki and Zhang Rui.
 
  - Miscellaneous fixes and updates of the ACPI core from Aaron Lu,
    Bjørn Mork, Hanjun Guo, Lan Tianyu, and Rafael J Wysocki.
 
  - Fixes and cleanups for the ACPI processor and ACPI PAD (Processor
    Aggregator Device) drivers from Baoquan He, Manuel Schölling,
    Tony Camuso, and Toshi Kani.
 
  - System suspend/resume optimization in the ACPI battery driver from
    Lan Tianyu.
 
  - OPP (Operating Performance Points) subsystem updates from
    Chander Kashyap, Mark Brown, and Nishanth Menon.
 
  - cpufreq core fixes, updates and cleanups from Srivatsa S Bhat,
    Stratos Karafotis, and Viresh Kumar.
 
  - Updates, fixes and cleanups for the Tegra, powernow-k8, imx6q,
    s5pv210, nforce2, and powernv cpufreq drivers from Brian Norris,
    Jingoo Han, Paul Bolle, Philipp Zabel, Stratos Karafotis, and
    Viresh Kumar.
 
  - intel_pstate driver fixes and cleanups from Dirk Brandewie,
    Doug Smythies, and Stratos Karafotis.
 
  - Enabling the big.LITTLE cpufreq driver on arm64 from Mark Brown.
 
  - Fix for the cpuidle menu governor from Chander Kashyap.
 
  - New ARM clps711x cpuidle driver from Alexander Shiyan.
 
  - Hibernate core fixes and cleanups from Chen Gang, Dan Carpenter,
    Fabian Frederick, Pali Rohár, and Sebastian Capella.
 
  - Intel RAPL (Running Average Power Limit) driver updates from
    Jacob Pan.
 
  - PNP subsystem updates from Bjorn Helgaas and Fabian Frederick.
 
  - devfreq core updates from Chanwoo Choi and Paul Bolle.
 
  - devfreq updates for exynos4 and exynos5 from Chanwoo Choi and
    Bartlomiej Zolnierkiewicz.
 
  - turbostat tool fix from Jean Delvare.
 
  - cpupower tool updates from Prarit Bhargava, Ramkumar Ramachandra
    and Thomas Renninger.
 
  - New ACPI ec_access.c tool for poking at the EC in a safe way
    from Thomas Renninger.
 
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Merge tag 'pm+acpi-3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm into next

Pull ACPI and power management updates from Rafael Wysocki:
 "ACPICA is the leader this time (63 commits), followed by cpufreq (28
  commits), devfreq (15 commits), system suspend/hibernation (12
  commits), ACPI video and ACPI device enumeration (10 commits each).

  We have no major new features this time, but there are a few
  significant changes of how things work.  The most visible one will
  probably be that we are now going to create platform devices rather
  than PNP devices by default for ACPI device objects with _HID.  That
  was long overdue and will be really necessary to be able to use the
  same drivers for the same hardware blocks on ACPI and DT-based systems
  going forward.  We're not expecting fallout from this one (as usual),
  but it's something to watch nevertheless.

  The second change having a chance to be visible is that ACPI video
  will now default to using native backlight rather than the ACPI
  backlight interface which should generally help systems with broken
  Win8 BIOSes.  We're hoping that all problems with the native backlight
  handling that we had previously have been addressed and we are in a
  good enough shape to flip the default, but this change should be easy
  enough to revert if need be.

  In addition to that, the system suspend core has a new mechanism to
  allow runtime-suspended devices to stay suspended throughout system
  suspend/resume transitions if some extra conditions are met
  (generally, they are related to coordination within device hierarchy).
  However, enabling this feature requires cooperation from the bus type
  layer and for now it has only been implemented for the ACPI PM domain
  (used by ACPI-enumerated platform devices mostly today).

  Also, the acpidump utility that was previously shipped as a separate
  tool will now be provided by the upstream ACPICA along with the rest
  of ACPICA code, which will allow it to be more up to date and better
  supported, and we have one new cpuidle driver (ARM clps711x).

  The rest is improvements related to certain specific use cases,
  cleanups and fixes all over the place.

  Specifics:

   - ACPICA update to upstream version 20140424.  That includes a number
     of fixes and improvements related to things like GPE handling,
     table loading, headers, memory mapping and unmapping, DSDT/SSDT
     overriding, and the Unload() operator.  The acpidump utility from
     upstream ACPICA is included too.  From Bob Moore, Lv Zheng, David
     Box, David Binderman, and Colin Ian King.

   - Fixes and cleanups related to ACPI video and backlight interfaces
     from Hans de Goede.  That includes blacklist entries for some new
     machines and using native backlight by default.

   - ACPI device enumeration changes to create platform devices rather
     than PNP devices for ACPI device objects with _HID by default.  PNP
     devices will still be created for the ACPI device object with
     device IDs corresponding to real PNP devices, so that change should
     not break things left and right, and we're expecting to see more
     and more ACPI-enumerated platform devices in the future.  From
     Zhang Rui and Rafael J Wysocki.

   - Updates for the ACPI LPSS (Low-Power Subsystem) driver allowing it
     to handle system suspend/resume on Asus T100 correctly.  From
     Heikki Krogerus and Rafael J Wysocki.

   - PM core update introducing a mechanism to allow runtime-suspended
     devices to stay suspended over system suspend/resume transitions if
     certain additional conditions related to coordination within device
     hierarchy are met.  Related PM documentation update and ACPI PM
     domain support for the new feature.  From Rafael J Wysocki.

   - Fixes and improvements related to the "freeze" sleep state.  They
     affect several places including cpuidle, PM core, ACPI core, and
     the ACPI battery driver.  From Rafael J Wysocki and Zhang Rui.

   - Miscellaneous fixes and updates of the ACPI core from Aaron Lu,
     Bjørn Mork, Hanjun Guo, Lan Tianyu, and Rafael J Wysocki.

   - Fixes and cleanups for the ACPI processor and ACPI PAD (Processor
     Aggregator Device) drivers from Baoquan He, Manuel Schölling, Tony
     Camuso, and Toshi Kani.

   - System suspend/resume optimization in the ACPI battery driver from
     Lan Tianyu.

   - OPP (Operating Performance Points) subsystem updates from Chander
     Kashyap, Mark Brown, and Nishanth Menon.

   - cpufreq core fixes, updates and cleanups from Srivatsa S Bhat,
     Stratos Karafotis, and Viresh Kumar.

   - Updates, fixes and cleanups for the Tegra, powernow-k8, imx6q,
     s5pv210, nforce2, and powernv cpufreq drivers from Brian Norris,
     Jingoo Han, Paul Bolle, Philipp Zabel, Stratos Karafotis, and
     Viresh Kumar.

   - intel_pstate driver fixes and cleanups from Dirk Brandewie, Doug
     Smythies, and Stratos Karafotis.

   - Enabling the big.LITTLE cpufreq driver on arm64 from Mark Brown.

   - Fix for the cpuidle menu governor from Chander Kashyap.

   - New ARM clps711x cpuidle driver from Alexander Shiyan.

   - Hibernate core fixes and cleanups from Chen Gang, Dan Carpenter,
     Fabian Frederick, Pali Rohár, and Sebastian Capella.

   - Intel RAPL (Running Average Power Limit) driver updates from Jacob
     Pan.

   - PNP subsystem updates from Bjorn Helgaas and Fabian Frederick.

   - devfreq core updates from Chanwoo Choi and Paul Bolle.

   - devfreq updates for exynos4 and exynos5 from Chanwoo Choi and
     Bartlomiej Zolnierkiewicz.

   - turbostat tool fix from Jean Delvare.

   - cpupower tool updates from Prarit Bhargava, Ramkumar Ramachandra
     and Thomas Renninger.

   - New ACPI ec_access.c tool for poking at the EC in a safe way from
     Thomas Renninger"

* tag 'pm+acpi-3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (187 commits)
  ACPICA: Namespace: Remove _PRP method support.
  intel_pstate: Improve initial busy calculation
  intel_pstate: add sample time scaling
  intel_pstate: Correct rounding in busy calculation
  intel_pstate: Remove C0 tracking
  PM / hibernate: fixed typo in comment
  ACPI: Fix x86 regression related to early mapping size limitation
  ACPICA: Tables: Add mechanism to control early table checksum verification.
  ACPI / scan: use platform bus type by default for _HID enumeration
  ACPI / scan: always register ACPI LPSS scan handler
  ACPI / scan: always register memory hotplug scan handler
  ACPI / scan: always register container scan handler
  ACPI / scan: Change the meaning of missing .attach() in scan handlers
  ACPI / scan: introduce platform_id device PNP type flag
  ACPI / scan: drop unsupported serial IDs from PNP ACPI scan handler ID list
  ACPI / scan: drop IDs that do not comply with the ACPI PNP ID rule
  ACPI / PNP: use device ID list for PNPACPI device enumeration
  ACPI / scan: .match() callback for ACPI scan handlers
  ACPI / battery: wakeup the system only when necessary
  power_supply: allow power supply devices registered w/o wakeup source
  ...
2014-06-04 08:57:16 -07:00
David S. Miller
c99f7abf0e Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	include/net/inetpeer.h
	net/ipv6/output_core.c

Changes in net were fixing bugs in code removed in net-next.

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-03 23:32:12 -07:00