| SHA1 | ||
|---|---|---|
drivers, along with a pretty standard number of new drivers. The core
recieved a small number of updates as well.
Core changes of note:
* Removed CLK_IS_ROOT flag
New clk provider drivers:
* Renesas r8a7796 Clock Pulse Generator / Module Standby and Software
Reset
* Allwinner sun8i H3 Clock Controller Unit
* AmLogic meson8b clock controller (rewritten)
* AmLogic gxbb clock controller
* Support for some new ICs was added by simple changes to static data
tables for chips sharing the same family
Driver updates of note:
* the Allwinner sunxi clock driver infrastucture was rewritten to
comform to the state of the art at drivers/clk/sunxi-ng. The old
implementation is still supported for backwards compatibility with the
DT ABI
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Merge tag 'clk-for-linus-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Michael Turquette:
"The bulk of the changes are updates and fixes to existing clk provider
drivers, along with a pretty standard number of new drivers. The core
recieved a small number of updates as well.
Core changes of note:
- removed CLK_IS_ROOT flag
New clk provider drivers:
- Renesas r8a7796 clock pulse generator / module standby and
software reset
- Allwinner sun8i H3 clock controller unit
- AmLogic meson8b clock controller (rewritten)
- AmLogic gxbb clock controller
- support for some new ICs was added by simple changes to static
data tables for chips sharing the same family
Driver updates of note:
- the Allwinner sunxi clock driver infrastucture was rewritten to
comform to the state of the art at drivers/clk/sunxi-ng. The old
implementation is still supported for backwards compatibility with
the DT ABI"
* tag 'clk-for-linus-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (162 commits)
clk: Makefile: re-sort and clean up
Revert "clk: gxbb: expose CLKID_MMC_PCLK"
clk: samsung: Allow modular build of the Audio Subsystem CLKCON driver
clk: samsung: make clk-s5pv210-audss explicitly non-modular
clk: exynos5433: remove CLK_IGNORE_UNUSED flag from SPI clocks
clk: oxnas: Add hardware dependencies
clk: imx7d: do not set parent of ethernet time/ref clocks
ARM: dt: sun8i: switch the H3 to the new CCU driver
clk: sunxi-ng: h3: Fix Kconfig symbol typo
clk: sunxi-ng: h3: Fix audio clock divider offset
clk: sunxi-ng: Add H3 clocks
clk: sunxi-ng: Add N-K-M-P factor clock
clk: sunxi-ng: Add N-K-M Factor clock
clk: sunxi-ng: Add N-M-factor clock support
clk: sunxi-ng: Add N-K-factor clock support
clk: sunxi-ng: Add M-P factor clock support
clk: sunxi-ng: Add divider
clk: sunxi-ng: Add phase clock support
clk: sunxi-ng: Add mux clock support
clk: sunxi-ng: Add gate clock support
...
Linus Torvalds
commited |
1056c9bd27 | |
The clk notifier symbols are hidden by COMMON_CLK. However on some
platforms HAVE_CLK might be set while COMMON_CLK not which leads to
compile test build errors like:
$ make.cross ARCH=sh
drivers/devfreq/tegra-devfreq.c: In function 'tegra_actmon_rate_notify_cb':
>> drivers/devfreq/tegra-devfreq.c:391:16: error: 'POST_RATE_CHANGE' undeclared (first use in this function)
if (action != POST_RATE_CHANGE)
^
drivers/devfreq/tegra-devfreq.c: In function 'tegra_devfreq_probe':
>> drivers/devfreq/tegra-devfreq.c:654:8: error: implicit declaration of function 'clk_notifier_register' [-Werror=implicit-function-declaration]
err = clk_notifier_register(tegra->emc_clock, &tegra->rate_change_nb);
^
Export the macros and data type declarations outside of COMMON_CLK ifdef
and provide stubs to fix the compile testing.
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Tested-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Krzysztof Kozlowski
authored and
 Stephen Boyd
commited |
e81b87d22a | |
When compiling with the COMPILE_TEST option set, the clps711x does not compile because of the clk_get_sys() noop stub missing. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Michael Turquette <mturquette@baylibre.com> 
Daniel Lezcano
commited |
b81ea96870 | |
clk_add_alias() is provided by clkdev, and is not part of the clk API. Howver, it is prototyped in two locations: linux/clkdev.h and linux/clk.h. This is a mess. Get rid of the redundant and unnecessary version in linux/clk.h. Acked-by: Tony Lindgren <tony@atomide.com> Tested-by: Robert Jarzmik <robert.jarzmik@free.fr> Acked-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Russell King
commited |
2d34e50729 | |
The idea is that rate = clk_round_rate(clk, r) is equivalent to: clk_set_rate(clk, r); rate = clk_get_rate(clk); except that clk_round_rate() does not change the hardware in any way. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King
commited |
d2d14a7788 | |
Some drivers compare struct clk pointers as a means of knowing
if the two pointers reference the same clock hardware. This behavior is
dubious (drivers must not dereference struct clk), but did not cause any
regressions until the per-user struct clk patch was merged. Now the test
for matching clk's will always fail with per-user struct clk's.
clk_is_match is introduced to fix the regression and prevent drivers
from comparing the pointers manually.
Fixes:
Michael Turquette
authored and
Stephen Boyd
commited |
3d3801effd | |
Adds a way for clock consumers to set maximum and minimum rates. This
can be used for thermal drivers to set minimum rates, or by misc.
drivers to set maximum rates to assure a minimum performance level.
Changes the signature of the determine_rate callback by adding the
parameters min_rate and max_rate.
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
[sboyd@codeaurora.org: set req_rate in __clk_init]
Signed-off-by: Michael Turquette <mturquette@linaro.org>
[mturquette@linaro.org: min/max rate for sun6i_ahb1_clk_determine_rate
migrated clk-private.h changes to clk.c]
Tomeu Vizoso
authored and
Michael Turquette
commited |
1c8e600440 | |
This new function is similar to clk_set_parent(), except that it doesn't actually change the parent. It merely checks that the given parent clock can be a parent for the given clock. A situation where this is useful is to check that a particular setup is valid before switching to it. One specific use-case for this is atomic modesetting in the DRM framework where setting a mode is divided into a check phase where a given configuration is validated before applying changes to the hardware. Cc: Russell King <linux@arm.linux.org.uk> Signed-off-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Michael Turquette <mturquette@linaro.org> 
Thierry Reding
authored and
Michael Turquette
commited |
4e88f3de89 | |
fixes and enhancements to existing drivers as well as new drivers. This tag contains a bit more arch code than I usually take due to some OMAP2+ changes. Additionally it contains the restart notifier handlers which are merged as a dependency into several trees. The PXA changes are the only messy part. Due to having a stable tree I had to revert one patch and follow up with one more fix near the tip of this tag. Some dead code is introduced but it will soon become live code after 3.18-rc1 is released as the rest of the PXA family is converted over to the common clock framework. Another trend in this tag is that multiple vendors have started to push the complexity of changing their CPU frequency into the clock driver, whereas this used to be done in CPUfreq drivers. Changes to the clk core include a generic gpio-clock type and a clk_set_phase() function added to the top-level clk.h api. Due to some confusion on the fbdev mailing list the kernel boot parameters documentation was updated to further explain the clk_ignore_unused parameter, which is often required by users of the simplefb driver. Finally some fixes to the locking around the clock debugfs stuff was done to prevent deadlocks when interacting with other subsystems. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) iQIcBAABAgAGBQJUMu8gAAoJEDqPOy9afJhJ+GwP/3aU1PzhEPooZ3sZ5hkhmRYc RTzNZAODuOGbGnAiNQcr8XW3LJ6wKz5TSzzUC8IQkTcYM1Tsc7s5B6v+nMOkR2Jh sfrlnDEV/dsW9/3QADFuBowCaZdsaZnHn96RDhTmyDlPjh4HRR2k8ITT+TREbFrd cHDWy4QnI0u4NzhKtitvgW2770HyBpr31v5IdoRhVi5whoiBNL49BPwhwDWhwZVe w6qvc0jV8FK9Ra/Q7Vw6r3tiKkpO/upqVFDrsO831mp2qDcQvtOgNW9H2fjcobaX 3/KCbs1TZs39e71RsEGwCvmCudXkTgO1wUJ86MuCLHeb2o78Vx8EYie02/RApTOJ 0KGR+kFouggy2naeH8pXiTZk2HWMCbut6NQ1+AVbea5Em7hgHbYaQN71wVFKR4L7 QL+TugrIg81fGWSvxoTo6fsbEiKOUdhXvHFWP5etKHL+Ll+7ku05ojHLOZgEEwTf zFWSSF4XSFQtuQD1gup0pSfoLs6qVR57l8FsrxfRPK9jGttg5z1wyNkY+585ptim eyTn4mkvkx9t9Sx47VRj9WPcPr2SW1w8lTMw1WqKfHG7AEUJHHkRQThQmiU82b47 dTls4BBZ6sVZ8wj0V4zvnvbmtdYohOmBqNDEYx+a0dzPKstcAJyZgcjWBc13zds4 rIKKxhiU7jGWH4qnJLrx =w2rN -----END PGP SIGNATURE----- Merge tag 'clk-for-linus-3.18' of git://git.linaro.org/people/mike.turquette/linux Pull clock tree updates from Mike Turquette: "The clk tree changes for 3.18 are dominated by clock drivers. Mostly fixes and enhancements to existing drivers as well as new drivers. This tag contains a bit more arch code than I usually take due to some OMAP2+ changes. Additionally it contains the restart notifier handlers which are merged as a dependency into several trees. The PXA changes are the only messy part. Due to having a stable tree I had to revert one patch and follow up with one more fix near the tip of this tag. Some dead code is introduced but it will soon become live code after 3.18-rc1 is released as the rest of the PXA family is converted over to the common clock framework. Another trend in this tag is that multiple vendors have started to push the complexity of changing their CPU frequency into the clock driver, whereas this used to be done in CPUfreq drivers. Changes to the clk core include a generic gpio-clock type and a clk_set_phase() function added to the top-level clk.h api. Due to some confusion on the fbdev mailing list the kernel boot parameters documentation was updated to further explain the clk_ignore_unused parameter, which is often required by users of the simplefb driver. Finally some fixes to the locking around the clock debugfs stuff was done to prevent deadlocks when interacting with other subsystems." * tag 'clk-for-linus-3.18' of git://git.linaro.org/people/mike.turquette/linux: (99 commits) clk: pxa clocks build system fix Revert "arm: pxa: Transition pxa27x to clk framework" clk: samsung: register restart handlers for s3c2412 and s3c2443 clk: rockchip: add restart handler clk: rockchip: rk3288: i2s_frac adds flag to set parent's rate doc/kernel-parameters.txt: clarify clk_ignore_unused arm: pxa: Transition pxa27x to clk framework dts: add devicetree bindings for pxa27x clocks clk: add pxa27x clock drivers arm: pxa: add clock pll selection bits clk: dts: document pxa clock binding clk: add pxa clocks infrastructure clk: gpio-gate: Ensure gpiod_ APIs are prototyped clk: ti: dra7-atl-clock: Mark the device as pm_runtime_irq_safe clk: ti: LLVMLinux: Move __init outside of type definition clk: ti: consider the fact that of_clk_get() might return an error clk: ti: dra7-atl-clock: fix a memory leak clk: ti: change clock init to use generic of_clk_init clk: hix5hd2: add I2C clocks clk: hix5hd2: add watchdog0 clocks ...
Linus Torvalds
commited |
c0fa2373f8 | |
A common operation for a clock signal generator is to shift the phase of that signal. This patch introduces a new function to the clk.h API to dynamically adjust the phase of a clock signal. Additionally this patch introduces support for the new function in the common clock framework via the .set_phase call back in struct clk_ops. Signed-off-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Hans de Goede <hdegoede@redhat.com>
Mike Turquette
authored and
 Maxime Ripard
commited |
e59c5371fb | |
This patch fix spelling typo found in DocBook/kernel-api.xml. It is because the file is generated from the source comments, I have to fix the comments in source codes. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz> 
Masanari Iida
authored and
 Jiri Kosina
commited |
da3dae54e4 | |
Both the pr_err and the additional kerneldoc aim to help when debugging errors thrown from within a clock rate-change notifier callback. Reported-by: Sören Brinkmann <soren.brinkmann@xilinx.com> Acked-by: Sören Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
Mike Turquette
commited |
86bcfa2e87 | |
The clock accuracy is expressed in ppb (parts per billion) and represents the possible clock drift. Say you have a clock (e.g. an oscillator) which provides a fixed clock of 20MHz with an accuracy of +- 20Hz. This accuracy expressed in ppb is 20Hz/20MHz = 1000 ppb (or 1 ppm). Clock users may need the clock accuracy information in order to choose the best clock (the one with the best accuracy) across several available clocks. This patch adds clk accuracy retrieval support for common clk framework by means of a new function called clk_get_accuracy. This function returns the given clock accuracy expressed in ppb. In order to get the clock accuracy, this implementation adds one callback called recalc_accuracy to the clk_ops structure. This callback is given the parent clock accuracy (if the clock is not a root clock) and should recalculate the given clock accuracy. This callback is optional and may be implemented if the clock is not a perfect clock (accuracy != 0 ppb). Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com> Signed-off-by: Mike Turquette <mturquette@linaro.org> 
Boris BREZILLON
authored and
Mike Turquette
commited |
5279fc402a | |
Notifiers may return NOTIFY_(OK|DONE|STOP|BAD). The CCF uses an inconsistent mix of checking against NOTIFY_STOP or NOTIFY_BAD. This inconsistency leaves errors undetected in some cases: clk_set_parent() calls __clk_speculate_rates(), which stops when it hits a NOTIFIER_BAD (STOP is ignored), and passes this value back to the caller. clk_set_parent() compares this return value against NOTIFY_STOP only, ignoring NOTIFY_BAD returns. Use NOTIFY_STOP_MASK to detect a negative notifier return value and document all four return value options. Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: Mike Turquette <mturquette@linaro.org> 
Soren Brinkmann
authored and
Mike Turquette
commited |
fb72a0590b | |
Many drivers are shared between architectures that may or may not have HAVE_CLK selected for them. To remove compilation errors for them we enclose clk_*() calls in these drivers within #ifdef CONFIG_HAVE_CLK, #endif. This patch removes the need of these CONFIG_HAVE_CLK statements, by introducing dummy routines when HAVE_CLK is not selected by platforms. So, definition of these routines will always be available. These calls will return error for platforms that don't select HAVE_CLK. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Cc: Wolfram Sang <w.sang@pengutronix.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jeff Garzik <jgarzik@redhat.com> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Bhupesh Sharma <bhupesh.sharma@st.com> Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Mike Turquette <mturquette@linaro.org> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: viresh kumar <viresh.linux@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Viresh Kumar
authored and
Linus Torvalds
commited |
93abe8e4b1 | |
framework improvments, platform ports and new DT bindings. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAABAgAGBQJQDyNXAAoJEDqPOy9afJhJYT8QAMXV2AcB/nF3iOesjj7dZlCB qjEDd+fbISQMsvBrj9r4+rSktNWS451I46Yob4lfgfd7aVGD7iA8EK7kd11aSIx7 fjEfYuCoIBqdl0RJqXrKnXuoO/lKoX7kHdwdYj0BOZRDHoJs4CTpQaEhsTG2Ahp8 Sn7LmqMFe+hfIIL8gCn9/R0dUa8kGjFlNMN9y4hW01oPYRBNW0m6C9Af3SJlrJ0d Besk6c5Q6GHpuwJvir4kw9cghOXIzdJRFO4t9XkVBCWqQTSDhbIObOL9svLljJn/ OS4HKbvEpT1pY0P63qqzTv6o6VA3zGK+nt/oqa1T7EuZXktBS+G/eRNjAPEQx1BL bkLoM2zeSZ4zc/rWGrTk/rLGRSlzcHn1O+fy2P9RwtzhkIzN1FhxWd96FAWpFXsD VglwsB/WHQnZpi5VoQTtfqhBne6wo7BdNYpqrvYthG1OjsLgvqdK34HPESzvI+C1 k9BpLBLkUmfejJeu9Ox28hOlq92WVAqrZPOBSdcM3nyTenYG9JWM+OUytKs+Ph7a j8eSopG/Obe63BCTq5lpBJ6gOgjNK7DrmDZPwEDjSe+w/pE08/41uyNgEmzExxs8 1RQusSJAh6pJblixFYosrXtDsrU2HneJhR5aOFHKrHfqrXZ2bPoG/ut7wBr1opZF YJFNnvJ5zTbmku4HiEz8 =V8ad -----END PGP SIGNATURE----- Merge tag 'clk-for-linus' of git://git.linaro.org/people/mturquette/linux Pull common clk framework changes from Michael Turquette: "This includes a small number of core framework improvments, platform ports and new DT bindings." Fix up trivial conflicts in drivers/clk/Makefile * tag 'clk-for-linus' of git://git.linaro.org/people/mturquette/linux: (21 commits) clk: fix compile for OF && !COMMON_CLK clk: fix clk_get on of_clk_get_by_name return check clk: mxs: clk_register_clkdev mx28 usb clocks clk: add highbank clock support dt: add clock binding doc to primecell bindings clk: add DT fixed-clock binding support clk: add DT clock binding support ARM: integrator: convert to common clock clk: add versatile ICST307 driver ARM: integrator: put symbolic bus names on devices ARM: u300: convert to common clock clk: cache parent clocks only for muxes clk: wm831x: Add initial WM831x clock driver clk: Constify struct clk_init_data clk: Add CLK_IS_BASIC flag to identify basic clocks clk: Add support for rate table based dividers clk: Add support for power of two type dividers clk: mxs: imx28: decrease the frequency of ref_io1 for SSP2 and SSP3 clk: mxs: add clkdev lookup for pwm clk: mxs: Fix the GPMI clock name ...
Linus Torvalds
commited |
9161c3b796 | |
Signed-off-by: Jan-Simon Möller <jansimon.moeller@gmx.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: linux-kernel@vger.kernel.org Signed-off-by: Jiri Kosina <jkosina@suse.cz> 
Jan-Simon Möller
authored and
Jiri Kosina
commited |
a58b3a4aba | |
With commit
Rob Herring
authored and
Mike Turquette
commited |
137f8a7213 | |
The commit
Shawn Guo
authored and
Mike Turquette
commited |
9f1612d351 | |
Based on work 1st by Ben Herrenschmidt and Jeremy Kerr, then by Grant
Likely, this patch adds support to clk_get to allow drivers to retrieve
clock data from the device tree.
Platforms scan for clocks in DT with of_clk_init and a match table, and
the register a provider through of_clk_add_provider. The provider's
clk_src_get function will be called when a device references the
provider's OF node for a clock reference.
v6 (Rob Herring):
- Return error values instead of NULL to match clock framework
expectations
v5 (Rob Herring):
- Move from drivers/of into common clock subsystem
- Squashed "dt/clock: add a simple provider get function" and
"dt/clock: add function to get parent clock name"
- Rebase to 3.4-rc1
- Drop CONFIG_OF_CLOCK and just use CONFIG_OF
- Add missing EXPORT_SYMBOL to various functions
- s/clock-output-name/clock-output-names/
- Define that fixed-clock binding is a single output
v4 (Rob Herring):
- Rework for common clk subsystem
- Add of_clk_get_parent_name function
v3: - Clarified documentation
v2: - fixed errant ';' causing compile error
- Editorial fixes from Shawn Guo
- merged in adding lookup to clkdev
- changed property names to match established convention. After
working with the binding a bit it really made more sense to follow the
lead of 'reg', 'gpios' and 'interrupts' by making the input simply
'clocks' & 'clock-names' instead of 'clock-input-*', and to only use
clock-output* for the producer nodes. (Sorry Shawn, this will mean
you need to change some code, but it should be trivial)
- Add ability to inherit clocks from parent nodes by using an empty
'clock-ranges' property. Useful for busses. I could use some feedback
on the new property name, 'clock-ranges' doesn't feel right to me.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Reviewed-by: Shawn Guo <shawn.guo@freescale.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Grant Likely
authored and
Mike Turquette
commited |
766e6a4ec6 | |
* depends/rmk/clkdev: CLKDEV: provide helpers for common clock framework ARM: 7392/1: CLKDEV: Optimize clk_find() ARM: 7376/1: clkdev: Implement managed clk_get() 
Arnd Bergmann
commited |
e12ff34402 | |
Remove trailing whitespace from 2 lines. Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Rob Herring
authored and
Mike Turquette
commited |
8b7730ddff | |
The comment is inaccurate (it actually ends the CONFIG_COMMON_CLK section, there's no else) and given that we've just got a single level of ifdef isn't really needed anyway. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Mike Turquette <mturquette@linaro.org> 
Mark Brown
authored and
Mike Turquette
commited |
7e87aed965 | |
Allow clk API users to simplify their cleanup paths by providing a managed version of clk_get() and clk_put(). Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Mark Brown
authored and
Russell King
commited |
a8a97db984 | |
The common clock framework defines a common struct clk useful across most platforms as well as an implementation of the clk api that drivers can use safely for managing clocks. The net result is consolidation of many different struct clk definitions and platform-specific clock framework implementations. This patch introduces the common struct clk, struct clk_ops and an implementation of the well-known clock api in include/clk/clk.h. Platforms may define their own hardware-specific clock structure and their own clock operation callbacks, so long as it wraps an instance of struct clk_hw. See Documentation/clk.txt for more details. This patch is based on the work of Jeremy Kerr, which in turn was based on the work of Ben Herrenschmidt. Signed-off-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Mike Turquette <mturquette@ti.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Rob Herring <rob.herring <at> calxeda.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Jeremy Kerr <jeremy.kerr@canonical.com> Cc: Arnd Bergman <arnd.bergmann@linaro.org> Cc: Paul Walmsley <paul@pwsan.com> Cc: Shawn Guo <shawn.guo@freescale.com> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Richard Zhao <richard.zhao@linaro.org> Cc: Saravana Kannan <skannan@codeaurora.org> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Linus Walleij <linus.walleij@stericsson.com> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: Amit Kucheria <amit.kucheria@linaro.org> Cc: Deepak Saxena <dsaxena@linaro.org> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Mike Turquette
authored and
Arnd Bergmann
commited |
b2476490ef | |
It's for migrating to generic clk framework API. The helper functions help cases clk_enable/clk_disable is used in non-atomic context. For example, Call clk_enable in probe and clk_disable in remove. Signed-off-by: Richard Zhao <richard.zhao@linaro.org> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Cc: Russell King <linux@arm.linux.org.uk> Acked-by: Marek Vasut <marek.vasut@gmail.com> 
Richard Zhao
authored and
Shawn Guo
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42c5d52f2b | |
As discussed previously, there's the need on some platforms to run some parts of clk_enable() in contexts which can schedule. The solution which was agreed upon was to provide clk_prepare() and clk_unprepare() to contain this parts, while clk_enable() and clk_disable() perform the atomic part. This patch provides a common definition for clk_prepare() and clk_unprepare() in linux/clk.h, and provides an upgrade path for existing implementation and drivers: drivers can start using clk_prepare() and clk_unprepare() once this patch is merged without having to wait for platform support. Platforms can then start to provide these additional functions. Eventually, HAVE_CLK_PREPARE will be removed from the kernel, and everyone will have to provide these new APIs. Acked-by: Saravana Kannan <skannan@codeaurora.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King
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40d3e0f494 | |
This can be used for other arm platforms too as discussed on the linux-arm-kernel list. Also check the return value with IS_ERR and return PTR_ERR as suggested by Russell King. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Tony Lindgren
authored and
Russell King
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c068303920 | |
This adds clk_get_sys to get a clock without the associated struct device. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> 
Sascha Hauer
commited |
05fd8e73e1 | |
clk_get and clk_put may not be used from within interrupt context. Change comment to this function. Signed-off-by: Alex Raimondi <raimondi@miromico.ch> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Cc: john stultz <johnstul@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Alex Raimondi
authored and
Linus Torvalds
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f7ad160b49 | |
include/linux/clk.h is betraying its ARM origins. Signed-off-by: Todd Poynor <tpoynor@mvista.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Todd Poynor
authored and
Russell King
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686f8c5d77 | |
This is needs to be visible to other architectures using the AMBA bus and peripherals. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Russell King
commited |
f8ce25476d |
Renamed from include/asm-arm/hardware/clock.h (Browse further)