Commit Graph

1824 Commits

Author SHA1 Message Date
Felipe Balbi
70e9f4dde0 clk: add newline character after dumping all clocks
clk_dump() will dump data about all clocks in JSON
format, but it misses a newline character at the
end of the JSON string. This patch adds that missing
newline character.

Signed-off-by: Felipe Balbi <balbi@ti.com>
[sboyd@codeaurora.org: Squelch checkpatch with seq_puts()]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-07 11:32:37 -07:00
Krzysztof Kozlowski
d5255ec362 clk: s3c2410: Constify platform_device_id
The platform_device_id is not modified by the driver and core uses it as
const.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-05 22:50:54 -07:00
Krzysztof Kozlowski
1237dc4430 clk: s3c2410: Staticize local symbols
Staticize symbols not exported and not used outside of file.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-05 22:50:52 -07:00
Krzysztof Kozlowski
2ad8b3fcf5 clk: ls1x: Fix duplicate const for parent names
Replace duplicated const keyword with proper array of const pointers to
const strings.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-05 22:50:50 -07:00
Krzysztof Kozlowski
45195b8f84 clk: sirf: Constify parent names in clock init data
The array of parent names can be made as array of const pointers to
const strings.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-05 22:50:48 -07:00
Krzysztof Kozlowski
f3db6f16bd clk: cdce706: Constify parent names in clock init data
The array of parent names can be made as array of const pointers to
const strings.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-05 22:50:46 -07:00
Krzysztof Kozlowski
6b8f9eabec clk: exynos: Staticize file-scope declarations
Add missing static to local (file-scope only) symbols.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-05 22:50:44 -07:00
Krzysztof Kozlowski
9b030bc929 clk: rockchip: Staticize file-scope declarations
Add missing static to local (file-scope only) symbols.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-05 22:50:42 -07:00
James Liao
c1e81a3bef clk: mediatek: Add basic clocks for Mediatek MT8173.
This patch adds basic clocks for MT8173, including TOPCKGEN, PLLs,
INFRA and PERI clocks.

Signed-off-by: James Liao <jamesjj.liao@mediatek.com>
Signed-off-by: Henry Chen <henryc.chen@mediatek.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-05 22:50:38 -07:00
James Liao
a8aede7948 clk: mediatek: Add basic clocks for Mediatek MT8135.
This patch adds basic clocks for MT8135, including TOPCKGEN, PLLs,
INFRA and PERI clocks.

Signed-off-by: James Liao <jamesjj.liao@mediatek.com>
Signed-off-by: Henry Chen <henryc.chen@mediatek.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-05 22:50:35 -07:00
Sascha Hauer
d633fb7ac1 clk: mediatek: Add reset controller support
The pericfg and infracfg units also provide reset lines to several
other SoC internal units. This adds a function which can be called
from the pericfg and infracfg initialization functions which will
register the reset controller using reset_controller_register. The
reset controller will provide support for resetting the units
connected to the pericfg and infracfg controller. The units resetted
by this controller can use the standard reset device tree binding
to gain access to the reset lines.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-05 22:50:33 -07:00
James Liao
9741b1a680 clk: mediatek: Add initial common clock support for Mediatek SoCs.
This patch adds common clock support for Mediatek SoCs, including plls,
muxes and clock gates.

Signed-off-by: James Liao <jamesjj.liao@mediatek.com>
Signed-off-by: Henry Chen <henryc.chen@mediatek.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
[sboyd@codeaurora.org: Squelch checkpatch warning in clk-mtk.h]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-05 22:50:31 -07:00
Sascha Hauer
2893c37946 clk: make strings in parent name arrays const
The clk functions and structs declare the parent_name arrays as
'const char **parent_names' which means the parent name strings
are const, but the array itself is not. Use
'const char * const * parent_names' instead which also makes
the array const. This allows us to put the parent_name arrays into
the __initconst section.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
[sboyd@codeaurora.org: Squelch 80-character checkpatch warnings]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-05 22:50:03 -07:00
Stephen Boyd
396e339a77 Merge branch 'clk-fixes' into clk-next 2015-05-01 18:25:10 -07:00
Krzysztof Kozlowski
d6c2767867 clk: at91: Constify irq_domain_ops
The irq_domain_ops are not modified by the driver and the irqdomain core
code accepts pointer to a const data.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-01 18:25:09 -07:00
Stefan Wahren
7cb81136d2 clk: Fix JSON output in debugfs
key/value pairs in a JSON object must be separated by a comma.
After adding the properties "accuracy" and "phase" the JSON output
of /sys/kernel/debug/clk/clk_dump is invalid.

So add the missing commas to fix it.

Fixes: 5279fc402a ("clk: add clk accuracy retrieval support")
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
[sboyd@codeaurora.org: Added comment in function]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-01 18:25:08 -07:00
Georgi Djakov
5d45ed8f5b clk: qcom: Fix MSM8916 gfx3d_clk_src configuration
The gfx3d_clk_src parents configuration is incorrect. Fix it.

Fixes: 3966fab8b6 "clk: qcom: Add MSM8916 Global Clock Controller support"
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-04-30 18:42:55 -07:00
Georgi Djakov
52cdc33c38 clk: qcom: Fix MSM8916 venus divider value
One of the video codec clock frequencies has incorrect divider
value. Fix it.

Fixes: 3966fab8b6 "clk: qcom: Add MSM8916 Global Clock Controller support"
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-04-30 18:42:48 -07:00
Stephen Boyd
6e5ab41b10 clk: Update some comments to reflect reality
The debugfs clk directory no longer expresses a clk tree. Update
the comments around that apporiately. Also drop comments about
prepare locks needing to be held as we have the proper
annotations with lockdep_assert_held().

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-04-30 16:28:41 -07:00
Stephen Boyd
4dff95dc94 clk: Remove forward declared function prototypes
Move the code around so that we don't need to declare function
prototypes at the start of the file. Simplify
clk_core_is_prepared() and clk_core_is_enabled() too to make the
diff easier to read.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-04-30 16:28:39 -07:00
Stephen Boyd
1f3e198342 clk: Remove impossible if condition in clk_core_get_phase()
This condition can't ever be true because this function is static
and it's always called with a non-NULL pointer.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-04-30 16:28:37 -07:00
Stephen Boyd
d7d131512b clk: Drop unnecessary OOM prints
We don't need to print error messages when allocations fail.
We'll get a nice backtrace in such situations anyway.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-04-30 16:28:35 -07:00
Dong Aisheng
864e160ae5 clk: Squash __clk_{enable,disable}() into callers
These functions are only used in one place. Let's squash them
into their respective callers to save some lines.

Signed-off-by: Dong Aisheng <aisheng.dong@freescale.com>
[sboyd@codeaurora.org: Redo commit text, add NULL check in
clk_enable()]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-04-30 16:28:33 -07:00
Stephen Boyd
d6968fca78 clk: s/clk/core/ for struct clk_core
While introducing struct clk_core we tried to minimize the diff
by changing the type of 'clk' variables from struct clk to struct
clk_core without changing the names of the variables. Now that
the split is complete, the code is slightly confusing when it
mixes variables called 'clk' and variables called 'core' that are
of the same type struct clk_core. Let's be consistent and use
'core' everywhere we have a struct clk_core pointer and 'clk'
when we have a struct clk pointer.

Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-04-30 16:28:24 -07:00
Linus Torvalds
e5ac320de1 ARM: SoC multiplatform code changes for v4.1
The changes here belong to two main platforms:
 
 - Atmel At91 is flipping the bit and going multiplatform. This includes some
   cleanups and removal of code, and the final flip of config dependencies
 
 - Shmobile has several platforms that are going multiplatform, but this
   branch also contains a bunch of cleanups that they weren't able to keep
   separate in a good way. THere's also a removal of one of their SoCs and the
   corresponding boards (sh7372 and mackerel).
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Merge tag 'armsoc-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC multiplatform code changes from Olof Johansson:
 "The changes here belong to two main platforms:

   - Atmel At91 is flipping the bit and going multiplatform.  This
     includes some cleanups and removal of code, and the final flip of
     config dependencies

   - Shmobile has several platforms that are going multiplatform, but
     this branch also contains a bunch of cleanups that they weren't
     able to keep separate in a good way.  THere's also a removal of one
     of their SoCs and the corresponding boards (sh7372 and mackerel)"

* tag 'armsoc-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (67 commits)
  ARM: at91/pm: move AT91_MEMCTRL_* to pm.h
  ARM: at91/pm: move the standby functions to pm.c
  ARM: at91: fix pm_suspend.S compilation when ARMv6 is selected
  ARM: at91: add a Kconfig dependency on multi-platform
  ARM: at91: drop AT91_TIMER_HZ
  ARM: at91: remove hardware.h
  ARM: at91: remove SoC headers
  ARM: at91: remove useless mach/cpu.h
  ARM: at91: remove unused headers
  ARM: at91: switch at91_dt_defconfig to multiplatform
  ARM: at91: switch to multiplatform
  ARM: shmobile: r8a7778: enable multiplatform target
  ARM: shmobile: bockw: add sound to DT
  ARM: shmobile: r8a7778: add sound to DT
  ARM: shmobile: bockw: add devices hooked up to i2c0 to DT
  DT: i2c: add trivial binding for OKI ML86V7667 video decoder
  ARM: shmobile: r8a7778: common clock framework CPG driver
  ARM: shmobile: bockw dts: set extal clock frequency
  ARM: shmobile: bockw dts: Move Ethernet node to BSC
  ARM: shmobile: r8a73a4: Remove legacy code
  ...
2015-04-22 09:20:15 -07:00
Linus Torvalds
e98bf5cedf The changes to the common clock framework for 4.0 are mostly new clock
drivers and updates to existing ones for feature enhancements and bug
 fixes. There is more churn than usual in the framework core due to the
 change to introduce per-user unique struct clk pointers in 4.0. This
 caused several regressions to surface, some of which were sent as fixes
 to 4.0. New generic clock drivers were added for GPIO- and PWM-based
 clock controllers. Additionally the common clk-divider code recieved
 several fixes to the way it rounds rates.
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Merge tag 'clk-for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clock framework updates from Michael Turquette:
 "The changes to the common clock framework for 4.0 are mostly new clock
  drivers and updates to existing ones for feature enhancements and bug
  fixes.

  There is more churn than usual in the framework core due to the change
  to introduce per-user unique struct clk pointers in 4.0.  This caused
  several regressions to surface, some of which were sent as fixes to
  4.0.  New generic clock drivers were added for GPIO- and PWM-based
  clock controllers.

  Additionally the common clk-divider code recieved several fixes to the
  way it rounds rates"

* tag 'clk-for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (91 commits)
  clk: check ->determine/round_rate() return value in clk_calc_new_rates
  clk: at91: usb: propagate rate modification to the parent clk
  clk: samsung: exynos4: Disable ARMCLK down feature on Exynos4210 SoC
  clk: don't use __initconst for non-const arrays
  clk: at91: change to using endian agnositc IO
  clk: clk-gpio-gate: Fix active low
  clk: Add PWM clock driver
  clk: Add clock driver for mb86s7x
  clk: pxa: pxa3xx: add missing os timer clock
  clk: tegra: Use the proper parent for plld_dsi
  clk: tegra: Use generic tegra_osc_clk_init() on Tegra114
  clk: tegra: Model oscillator as clock
  clk: tegra: Add peripheral registers for bank Y
  clk: tegra: Register the proper number of resets
  clk: tegra: Remove needless initializations
  clk: tegra: Use consistent indentation
  clk: tegra: Various whitespace cleanups
  clk: tegra: Enable HDA to HDMI clocks on Tegra124
  clk: tegra: Fix a bunch of sparse warnings
  clk: tegra: Fix typo tabel -> table
  ...
2015-04-21 09:24:09 -07:00
Linus Torvalds
bfaf245022 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
 "This is the main pull request for MIPS for Linux 4.1.  Most
  noteworthy:

   - Add more Octeon-optimized crypto functions
   - Octeon crypto preemption and locking fixes
   - Little endian support for Octeon
   - Use correct CSR to soft reset Octeons
   - Support LEDs on the Octeon-based DSR-1000N
   - Fix PCI interrupt mapping for the Octeon-based DSR-1000N
   - Mark prom_free_prom_memory() as __init for a number of systems
   - Support for Imagination's Pistachio SOC.  This includes arch and
     CLK bits.  I'd like to merge pinctrl bits later
   - Improve parallelism of csum_partial for certain pipelines
   - Organize DTB files in subdirs like other architectures
   - Implement read_sched_clock for all MIPS platforms other than
     Octeon
   - Massive series of 38 fixes and cleanups for the FPU emulator /
     kernel
   - Further FPU remulator work to support new features.  This sits on a
     separate branch which also has been pulled into the 4.1 KVM branch
   - Clean up and fixes for the SEAD3 eval board; remove unused file
   - Various updates for Netlogic platforms
   - A number of small updates for Loongson 3 platforms
   - Increase the memory limit for ATH79 platforms to 256MB
   - A fair number of fixes and updates for BCM47xx platforms
   - Finish the implementation of XPA support
   - MIPS FDC support.  No, not floppy controller but Fast Debug Channel :)
   - Detect the R16000 used in SGI legacy platforms
   - Fix Kconfig dependencies for the SSB bus support"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (265 commits)
  MIPS: Makefile: Fix MIPS ASE detection code
  MIPS: asm: elf: Set O32 default FPU flags
  MIPS: BCM47XX: Fix detecting Microsoft MN-700 & Asus WL500G
  MIPS: Kconfig: Disable SMP/CPS for 64-bit
  MIPS: Hibernate: flush TLB entries earlier
  MIPS: smp-cps: cpu_set FPU mask if FPU present
  MIPS: lose_fpu(): Disable FPU when MSA enabled
  MIPS: ralink: add missing symbol for RALINK_ILL_ACC
  MIPS: ralink: Fix bad config symbol in PCI makefile.
  SSB: fix Kconfig dependencies
  MIPS: Malta: Detect and fix bad memsize values
  Revert "MIPS: Avoid pipeline stalls on some MIPS32R2 cores."
  MIPS: Octeon: Delete override of cpu_has_mips_r2_exec_hazard.
  MIPS: Fix cpu_has_mips_r2_exec_hazard.
  MIPS: kernel: entry.S: Set correct ISA level for mips_ihb
  MIPS: asm: spinlock: Fix addiu instruction for R10000_LLSC_WAR case
  MIPS: r4kcache: Use correct base register for MIPS R6 cache flushes
  MIPS: Kconfig: Fix typo for the r2-to-r6 emulator kernel parameter
  MIPS: unaligned: Fix regular load/store instruction emulation for EVA
  MIPS: unaligned: Surround load/store macros in do {} while statements
  ...
2015-04-17 15:50:54 -04:00
Javi Merino
aa7762010a clk: bcm/kona: use DIV_ROUND_CLOSEST_ULL()
Now that the kernel provides DIV_ROUND_CLOSEST_ULL(), drop the internal
implementation and use the kernel one.

Signed-off-by: Javi Merino <javi.merino@arm.com>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Alex Elder <elder@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-04-17 09:03:55 -04:00
Boris Brezillon
03bc10ab5b clk: check ->determine/round_rate() return value in clk_calc_new_rates
->determine_rate() and ->round_rate() can return the closest rate to the
requested one or an error code.
clk_calc_new_rates is assuming these functions can't return a negative
value, which leads to a undefined behavior when the clk implementation
returns such an error code.
Fix this by returning NULL in case ->determine_rate() or ->round_rate()
returned an error code.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-04-12 21:09:49 -07:00
Boris Brezillon
4591243102 clk: at91: usb: propagate rate modification to the parent clk
The at91sam9n12 and at91sam9x5 usb clocks do not propagate rate
modification requests to their parents.
This causes a bug when the PLLB is left uninitialized by the bootloader
(PLL multiplier set to 0, or in other words, PLL rate = 0 Hz).

Implement the determinate_rate method and propagate the change rate
request to the parent clk.

Cc: <stable@vger.kernel.org> # v3.14+
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reported-by: Bo Shen <voice.shen@atmel.com>
Tested-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-04-12 21:08:51 -07:00
Bartlomiej Zolnierkiewicz
3a9e9cb65b clk: samsung: exynos4: Disable ARMCLK down feature on Exynos4210 SoC
Commit 42773b28e7 ("clk: samsung: exynos4: Enable ARMCLK
down feature") enabled ARMCLK down feature on all Exynos4
SoCs.  Unfortunately on Exynos4210 SoC ARMCLK down feature
causes a lockup when ondemand cpufreq governor is used.
Fix it by limiting ARMCLK down feature to Exynos4x12 SoCs.

This patch was tested on:
- Exynos4210 SoC based Trats board
- Exynos4210 SoC based Origen board
- Exynos4412 SoC based Trats2 board
- Exynos4412 SoC based Odroid-U3 board

Cc: Daniel Drake <drake@endlessm.com>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: Kukjin Kim <kgene@kernel.org>
Fixes: 42773b28e7 ("clk: samsung: exynos4: Enable ARMCLK down feature")
Cc: <stable@vger.kernel.org> # v3.17+
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-04-12 20:58:54 -07:00
Uwe Kleine-König
692d8328e8 clk: don't use __initconst for non-const arrays
The statement

	static const char *name[];

defines a modifiable array of pointers to constant chars. That is

	*name[0] = 'f';

is forbidden, but

	name[0] = "f";

is not. So marking an array that is defined as above with __initconst is
wrong. Either an additional const must be added such that the whole
definition reads:

	static const char *const name[] __initconst;

or where this is not possible __initdata must be used.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-04-12 17:18:27 -07:00
Michael Turquette
c14deee398 clk/tegra: Changes for v4.1-rc1
These are mostly cleanups that I've been carrying in my local tree for
 far too long. In addition to those, there are some preparatory patches
 for the upcoming Tegra210 support and a patch to enable clocks needed
 for HDMI audio support.
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Merge tag 'clk/for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into clk-next

clk/tegra: Changes for v4.1-rc1

These are mostly cleanups that I've been carrying in my local tree for
far too long. In addition to those, there are some preparatory patches
for the upcoming Tegra210 support and a patch to enable clocks needed
for HDMI audio support.
2015-04-10 18:06:55 -07:00
Martin Fuzzey
820ad9752c clk: clk-gpio-gate: Fix active low
The active low flag in the DT cell is currently ignored.

This occurs because of_get_named_gpio_flags() does not apply the flags
to the underlying struct gpio_desc so the test in clk_register_gpio_gate()
was bogus.

Note that this patch changes the internal kernel API for
clk_register_gpio_gate() but there are currently no other users.

Signed-off-by: Martin Fuzzey <mfuzzey@parkeon.com>
Acked-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-04-10 17:45:30 -07:00
Philipp Zabel
9a74ccdbbb clk: Add PWM clock driver
Some board designers, when running out of clock output pads, decide to
(mis)use PWM output pads to provide a clock to external components.
This driver supports this practice by providing an adapter between the
PWM and clock bindings in the device tree. As the PWM bindings specify
the period in the device tree, this is a fixed clock.

Tested-by: Janusz Uzycki <j.uzycki@elproma.com.pl>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-04-10 14:44:43 -07:00
Jassi Brar
1ccdd04f53 clk: Add clock driver for mb86s7x
The CRG11 clock controller is managed by remote f/w.
This driver simply maps Linux CLK ops onto mailbox api.

Signed-off-by: Andy Green <andy.green@linaro.org>
Signed-off-by: Vincent Yang <vincent.yang@socionext.com>
Signed-off-by: Tetsuya Nuriya <nuriya.tetsuya@socionext.com>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-04-10 13:51:55 -07:00
Robert Jarzmik
c7739aebec clk: pxa: pxa3xx: add missing os timer clock
The pxa3xx scheduler relies on the pxa-timer, which requires a clock for
its rate. As the clock handling will be taken over by the clock
framework, add this missing clock.

The miss was discovered by attempting to run a zylonite platform in a
device-tree configuration, with the future patch to shift clocks
handling to clock framework applied.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-04-10 13:35:56 -07:00
Thierry Reding
c1d676cec5 clk: tegra: Use the proper parent for plld_dsi
The current parent, plld_out0, does not exist. The proper name is
pll_d_out0. While at it, rename the plld_dsi clock to pll_d_dsi_out to
be more consistent with other clock names.

Fixes: b270491eb9 ("clk: tegra: Define PLLD_DSI and remove dsia(b)_mux")
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-04-10 16:04:22 +02:00
Thierry Reding
a84724a1c3 clk: tegra: Use generic tegra_osc_clk_init() on Tegra114
There is no reason why Tegra114 cannot use the same generic code to set
up the oscillator, clk_m and pll_ref clocks. The only effective change
that this causes is that the CLK_SET_PARENT_RATE flag is dropped, but
since these clocks are all fixed it is not needed anyway.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-04-10 16:04:21 +02:00
Thierry Reding
63cc5a4da1 clk: tegra: Model oscillator as clock
Currently the Tegra clock driver simplifies the clock tree somewhat by
taking advantage of the fact that clk_m runs at the same frequency as
the oscillator. While that's true on all currently supported SoCs, it
does not apply to Tegra210 anymore. On Tegra210 clk_m is typically
divided down from the oscillator frequency. To support that setup, add
a separate clock for the oscillator that both clk_m and pll_ref derive
from.

Modify the tegra_osc_clk_init() function to take an additional divider
parameter for clk_m. Existing SoCs always pass in 1, whereas Tegra210
will read the divider from a register in the clock & reset controller.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-04-10 16:04:20 +02:00
Thierry Reding
699b477a0d clk: tegra: Add peripheral registers for bank Y
Tegra210 has an extra bank of peripheral clock registers. Add it to the
generic peripheral clock code.

Cc: Peter De Schrijver <pdeschrijver@nvidia.com>
Cc: Prashant Gaikwad <pgaikwad@nvidia.com>
Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-04-10 16:04:20 +02:00
Thierry Reding
5e43e25917 clk: tegra: Register the proper number of resets
The number of resets controls is 32 times the number of peripheral
register banks rather than 32 times the number of clocks. This reduces
(drastically) the number of reset controls registered from 10080 (315
clocks * 32) to 224 (6 peripheral register banks * 32).

This also fixes a potential crash because trying to use any of the
excess reset controls (224-10079) would have caused accesses beyond
the array bounds of the peripheral register banks definition array.

Cc: Peter De Schrijver <pdeschrijver@nvidia.com>
Cc: Prashant Gaikwad <pgaikwad@nvidia.com>
Fixes: 6d5b988e7d ("clk: tegra: implement a reset driver")
Cc: stable@vger.kernel.org # 3.14+
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-04-10 16:04:18 +02:00
Thierry Reding
44a6f3dbf1 clk: tegra: Remove needless initializations
The ret variable is often explicitly initialized to 0, but there is no
need to do so in many cases because it will immediately be overwritten
with the return value from a function.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-04-10 16:04:18 +02:00
Thierry Reding
12cf33c0eb clk: tegra: Use consistent indentation
Some of the .dev_id entries in the devclks table were oddly indented.
Make them consistent with the rest of the table.

Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-04-10 16:04:10 +02:00
Thierry Reding
6bb18c532d clk: tegra: Various whitespace cleanups
Make usage of blank lines as separators more consistent.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-04-10 16:03:48 +02:00
Dylan Reid
04794d982e clk: tegra: Enable HDA to HDMI clocks on Tegra124
Add the clocks used for HDMI audio played through the HDA controller.
Initialize the codec clock to 48Mhz and the HDA clock to 102MHz per
the TRM.

Signed-off-by: Dylan Reid <dgreid@chromium.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-04-10 16:03:47 +02:00
Thierry Reding
f081c89606 clk: tegra: Fix a bunch of sparse warnings
The second to last parameter of the TEGRA_CLK_PERIPH macro denotes a
table and should therefore users should pass in NULL instead of 0.

Fixes a bunch of sparse warnings like this:

	warning: Using plain integer as NULL pointer

Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-04-10 16:03:41 +02:00
Thierry Reding
8106462faa clk: tegra: Fix typo tabel -> table
The clock initialization structure is named struct clk_init_table.
Update the kerneldoc comment to use the correct name.

Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-04-10 16:02:08 +02:00
Julia Lawall
e52786ac3c clk: versatile: test returned value
Put NULL test on the result of the previous call instead on one of its
arguments.  A simplified version of the semantic match that finds this
problem is as follows (http://coccinelle.lip6.fr/):

// <smpl>
r@
expression *e1;
expression *e2;
identifier f;
statement S1,S2;
@@

e1 = f(...,e2,...);
(
if (e1 == NULL || ...) S1 else S2
|
*if (e2 == NULL || ...) S1 else S2
)
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-04-09 08:19:31 -07:00
Georgi Djakov
2f272e7b01 clk: qcom: Fix parent_map translations
When we introduced the parent_map tables, we missed to update
some of the functions where mapping is translated. Fix this.

Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Tested-by: Nicolas Dechesne <nicolas.dechesne@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-04-08 11:07:38 -07:00