| Age | Commit message (Collapse) | Author | Files | Lines |
|---|
|
The site-specific OOM messages are unnecessary, because they
duplicate the MM subsystem generic OOM message.
Signed-off-by: Jingoo Han <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
The site-specific OOM messages are unnecessary, because they
duplicate the MM subsystem generic OOM message.
Signed-off-by: Jingoo Han <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
Add support for the six-channel Kona PWM controller found on Broadcom
mobile SoCs like bcm281xx.
Signed-off-by: Tim Kryger <[email protected]>
Reviewed-by: Alex Elder <[email protected]>
Reviewed-by: Markus Mayer <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
[email protected] email-id doesn't exist anymore as he has left the
company. Replace ST's id with [email protected].
It also updates .mailmap file to fix address for 'git shortlog'.
Signed-off-by: Viresh Kumar <[email protected]>
Cc: Shiraz Hashim <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
Pull pwm changes from Thierry Reding:
"The legacy HAVE_PWM Kconfig symbol is finally being retired. Thanks a
lot to Sascha Hauer for doing that.
Three new drivers are added: Freescale FTM, Cirrus Logic CLPS711X and
Intel Low Power Subsystem.
An assortment of fixes and cleanups rounds things off for this release
cycle"
* tag 'pwm/for-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
pwm: pxa: Constify OF match table
pwm: pxa: Fix typo "pwm" -> "PWM"
Revert "pwm: pxa: Use of_match_ptr()"
pwm: add support for Intel Low Power Subsystem PWM
pwm: Add CLPS711X PWM support
pwm: atmel: correct CDTY calculation
pwm: atmel: Fix polarity handling
Documentation: Add device tree bindings for Freescale FTM PWM.
pwm: Add Freescale FTM PWM driver support
pwm: pxa: Use of_match_ptr()
pwm: samsung: Use SIMPLE_DEV_PM_OPS macro
pwm: renesas-tpu: Add dependency on HAS_IOMEM
pwm: Remove obsolete HAVE_PWM Kconfig symbol
|
|
The table is never modified and all OF functions that use it take a
const struct of_device_id *.
Signed-off-by: Thierry Reding <[email protected]>
|
|
Being an abbreviation, PWM should always be capitalized in prose.
Signed-off-by: Thierry Reding <[email protected]>
|
|
This reverts commit 8468949cddcdbb1b1b1bc552aefceb252078ceb1.
The OF match table dummy for non-OF configurations cannot be removed
because it is still used by the pxa_pwm_get_id_dt() function.
Signed-off-by: Thierry Reding <[email protected]>
|
|
Add support for Intel Low Power I/O subsystem PWM controllers found on
Intel BayTrail SoC.
Signed-off-by: Mika Westerberg <[email protected]>
Signed-off-by: Chew, Kean Ho <[email protected]>
Signed-off-by: Chang, Rebecca Swee Fun <[email protected]>
Signed-off-by: Chew, Chiau Ee <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
Add a new driver for the ARM CLPS711X Pulse Width Modulator (PWM) interface.
This CPU contain two 4-bit PWM outputs with constant period, based on CPU
PLL frequency. PWM polarity is determined by hardware by power on reset.
Signed-off-by: Alexander Shiyan <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
From the datasheet, the actual duty cycle is:
(period - (1 / clk) * CDTY) / period
This actually correct the polarity of the PWM and solves the issue that
pwm-leds exhibits: when setting a duty cycle of 0 and then disabling a
channel, the level was wrong (1 when the polarity was normal and 0 when
the polarity was inversed).
Signed-off-by: Alexandre Belloni <[email protected]>
Acked-by: Nicolas Ferre <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
When atmel_pwm_config() calculates and then sets the prescaler, it is
overwriting the channel's CMR register so we are losing the CPOL
configuration.
As atmel_pwm_config() is always called before enabling a channel,
inverting the polarity doesn't work.
Fix that by reading CMR first and only overwriting the prescaler bits.
Signed-off-by: Alexandre Belloni <[email protected]>
Acked-by: Nicolas Ferre <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
The FTM PWM device can be found on Vybrid VF610 Tower and
Layerscape LS-1 SoCs.
Signed-off-by: Xiubo Li <[email protected]>
Signed-off-by: Alison Wang <[email protected]>
Signed-off-by: Jingchang Lu <[email protected]>
Reviewed-by: Sascha Hauer <[email protected]>
Reviewed-by: Yuan Yao <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
Use of_match_ptr(), because of_match_ptr() returns NULL pointer
when CONFIG_OF is disabled.
Signed-off-by: Jingoo Han <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
Use SIMPLE_DEV_PM_OPS macro in order to make the code simpler.
Signed-off-by: Jingoo Han <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
On archs like S390 or um this driver cannot build nor work.
Make it depend on HAS_IOMEM to bypass build failures.
drivers/built-in.o: In function `tpu_probe':
drivers/pwm/pwm-renesas-tpu.c:421: undefined reference to `devm_ioremap_resource'
Signed-off-by: Richard Weinberger <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
Fix a memory leak in the lp3943_pwm_request_map() error handling path.
Make sure already allocated pwm map memory is freed correctly.
Detected by Coverity: CID 1162829.
Signed-off-by: Christian Engelmayer <[email protected]>
Acked-by: Milo Kim <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
Pull pwm changes from Thierry Reding:
"The patches for this release cycle include various enhancements
(device tree support, better compile coverage, ...) for existing
drivers. There is a new driver for Atmel SoCs.
Various drivers as well as the sysfs support received minor fixes and
cleanups"
* tag 'pwm/for-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
pwm: tiecap: Remove duplicate put_sync call
pwm: tiehrpwm: use dev_err() instead of pr_err()
pwm: pxa: remove unnecessary space before tabs
pwm: ep93xx: split module author names
pwm: use seq_puts() instead of seq_printf()
pwm: atmel-pwm: Do not unprepare clock after successful registration
of: Add Atmel PWM controller device tree binding
pwm: atmel-pwm: Add Atmel PWM controller driver
backlight: pwm_bl: Remove error message upon devm_kzalloc() failure
pwm: pca9685: depends on I2C rather than REGMAP_I2C
pwm: renesas-tpu: Enable driver compilation with COMPILE_TEST
pwm: jz4740: Use devm_clk_get()
pwm: jz4740: Pass device to clk_get()
pwm: sysfs: Convert to use ATTRIBUTE_GROUPS macro
pwm: pxa: Add device tree support
|
|
Remove duplicate 'pm_runtime_put_sync' in the remove path.
Signed-off-by: Sourav Poddar <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
This is the other of the LP3943 MFD driver.
LP3943 can be used as a PWM generator, up to 2 channels.
* Two PWM generators supported
* Supported PWM operations
request, free, config, enable and disable
* Pin assignment
A driver data, 'pin_used' is checked when a PWM is requested.
If the output pin is already assigned, then returns as failure.
If the pin is available, 'pin_used' is set.
When the PWM is not used anymore, then it is cleared.
It is defined as unsigned long type for atomic bit operation APIs,
but only LSB 16bits are used because LP3943 has 16 outputs.
Signed-off-by: Milo Kim <[email protected]>
Acked-by: Thierry Reding <[email protected]>
Signed-off-by: Lee Jones <[email protected]>
|
|
Use dev_err() instead of pr_err() to provide a better message
to userspace.
Signed-off-by: Jingoo Han <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
Remove unnecessary space before tabs in order to fix the following
checkpatch warning.
WARNING: please, no space before tabs
Signed-off-by: Jingoo Han <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
Split module author names in order to fix the following
checkpatch warning.
WARNING: quoted string split across lines
Signed-off-by: Jingoo Han <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
For a constant format without additional arguments, use seq_puts()
instead of seq_printf(). Also, the following checkpatch warning is
fixed.
WARNING: Prefer seq_puts to seq_printf
Signed-off-by: Jingoo Han <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
When the PWM controller is registered successfully, the clock can not
unprepare, so fix it.
Signed-off-by: Bo Shen <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
Add a PWM framework driver for the PWM controller found on Atmel SoCs.
Signed-off-by: Bo Shen <[email protected]>
Acked-by: Alexandre Belloni <[email protected]>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <[email protected]>
[thierry.reding: coding style and other minor cleanups]
Signed-off-by: Thierry Reding <[email protected]>
|
|
REGMAP_I2C is not a visible config option.
Thus make PWM_PCA9685 depend on I2c and then select REGMAP_I2C.
Signed-off-by: Axel Lin <[email protected]>
Acked-by: Steffen Trumtrar <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
This helps increasing build testing coverage.
Cc: Thierry Reding <[email protected]>
Cc: [email protected]
Signed-off-by: Laurent Pinchart <[email protected]>
Acked-by: Simon Horman <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
Using the managed version of clk_get() makes the code a bit shorter and the
error paths less complicated.
Signed-off-by: Lars-Peter Clausen <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
In preparation to switching the jz4740 clk driver to the common clk framework
make sure to pass the device to clk_get().
Signed-off-by: Lars-Peter Clausen <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
Use new ATTRIBUTE_GROUPS macro to reduce the number of lines of code.
Signed-off-by: Axel Lin <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
This patch adds device tree support to the PXA's PWM driver. Nothing
needs to be extracted from the device tree node by the PWM device.
Client devices need only specify the period; the per-chip index is
implicitly zero because one device node must be present for each PWM
output in use. This approach is more convenient due to the wide
variability in the number of PWM channels present across the various PXA
variants, and is made possible by the fact that the register sets for
each PWM channel are segregated from each other. An of_xlate() method
is added to parse this single-cell node. The existing ID table is
reused for the match table data.
Tested on a Palm Treo 680 (both platform data and DT cases).
Signed-off-by: Mike Dunn <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
PWM channel data was set to NULL before freeing it. This caused the
following kernel warning while unexporting the channel. Set the channel
data to NULL after freeing it.
[ 70.495000] WARNING: CPU: 0 PID: 1 at drivers/base/devres.c:805 pwm_put+0x48/0x80()
[ 70.505000] Modules linked in:
[ 70.505000] CPU: 0 PID: 1 Comm: sh Not tainted 3.12.0-rc6-next-20131024-00012-gd4aec04-dirty #58
[ 70.515000] [<c0014ddc>] (unwind_backtrace+0x0/0xf4) from [<c0011784>] (show_stack+0x10/0x14)
[ 70.525000] [<c0011784>] (show_stack+0x10/0x14) from [<c03a3cbc>] (dump_stack+0x7c/0xb0)
[ 70.530000] [<c03a3cbc>] (dump_stack+0x7c/0xb0) from [<c001de68>] (warn_slowpath_common+0x6c/0x88)
[ 70.540000] [<c001de68>] (warn_slowpath_common+0x6c/0x88) from [<c001df20>] (warn_slowpath_null+0x1c/0x24)
[ 70.550000] [<c001df20>] (warn_slowpath_null+0x1c/0x24) from [<c01d1af8>] (pwm_put+0x48/0x80)
[ 70.560000] [<c01d1af8>] (pwm_put+0x48/0x80) from [<c01d21c8>] (pwm_unexport_store+0x94/0xac)
[ 70.565000] [<c01d21c8>] (pwm_unexport_store+0x94/0xac) from [<c010991c>] (sysfs_write_file+0x148/0x1d8)
[ 70.575000] [<c010991c>] (sysfs_write_file+0x148/0x1d8) from [<c00b2a80>] (vfs_write+0xb4/0x1a0)
[ 70.585000] [<c00b2a80>] (vfs_write+0xb4/0x1a0) from [<c00b3068>] (SyS_write+0x3c/0x78)
[ 70.595000] [<c00b3068>] (SyS_write+0x3c/0x78) from [<c000e2e0>] (ret_fast_syscall+0x0/0x30)
Signed-off-by: Sachin Kamat <[email protected]>
Reviewed-by: Jingoo Han <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
Remove the non-standard EP93xx PWM driver in drivers/misc and add
a new driver for the PWM controllers on the EP93xx platform based
on the PWM framework.
These PWM controllers each support 1 PWM channel with programmable
duty cycle, frequency, and polarity inversion.
Signed-off-by: H Hartley Sweeten <[email protected]>
Cc: Ryan Mallon <[email protected]>
Acked-by: Arnd Bergmann <[email protected]>
Acked-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
Since commit ab78029 (drivers/pinctrl: grab default handles from device core),
we can rely on device core for setting the default pins. Compile tested only.
Acked-by: Linus Walleij <[email protected]> (personally at LCE13)
Signed-off-by: Wolfram Sang <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.
Signed-off-by: Sachin Kamat <[email protected]>
Acked-by: Sascha Hauer <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.
Signed-off-by: Sachin Kamat <[email protected]>
Cc: Alexandre Pereira da Silva <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.
Signed-off-by: Sachin Kamat <[email protected]>
Acked-by: Shawn Guo <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
'of_match_ptr' is defined in linux/of.h. Include it explicitly.
Signed-off-by: Sachin Kamat <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
'of_match_ptr' is defined in linux/of.h. Include it explicitly.
Signed-off-by: Sachin Kamat <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
'of_match_ptr' is defined in linux/of.h. Include it explicitly.
Signed-off-by: Sachin Kamat <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
'of_match_ptr' is defined in linux/of.h. Include it explicitly.
Signed-off-by: Sachin Kamat <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
Use the the tcb counter width to compute the maximum time that can be
represented using the slow clock source instead of the static 16 bit width.
Signed-off-by: Boris BREZILLON <[email protected]>
Acked-by: Nicolas Ferre <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
Clock source changes are never applied to the CMR register.
This may lead to wrong period/duty cycle configuration.
Signed-off-by: Boris BREZILLON <[email protected]>
Acked-by: Nicolas Ferre <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC cleanups from Olof Johansson:
"This branch contains code cleanups, moves and removals for 3.12.
There's a large number of various cleanups, and a nice net removal of
13500 lines of code.
Highlights worth mentioning are:
- A series of patches from Stephen Boyd removing the ARM local timer
API.
- Move of Qualcomm MSM IOMMU code to drivers/iommu.
- Samsung PWM driver cleanups from Tomasz Figa, removing legacy PWM
driver and switching over to the drivers/pwm one.
- Removal of some unusued auto-generated headers for OMAP2+ (PRM/CM).
There's also a move of a header file out of include/linux/i2c/ to
platform_data, where it really belongs. It touches mostly ARM
platform code for include changes so we took it through our tree"
* tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (83 commits)
ARM: OMAP2+: Add back the define for AM33XX_RST_GLOBAL_WARM_SW_MASK
gpio: (gpio-pca953x) move header to linux/platform_data/
arm: zynq: hotplug: Remove unreachable code
ARM: SAMSUNG: Remove unnecessary exynos4_default_sdhci*()
tegra: simplify use of devm_ioremap_resource
ARM: SAMSUNG: Remove plat/regs-timer.h header
ARM: SAMSUNG: Remove remaining uses of plat/regs-timer.h header
ARM: SAMSUNG: Remove pwm-clock infrastructure
ARM: SAMSUNG: Remove old PWM timer platform devices
pwm: Remove superseded pwm-samsung-legacy driver
ARM: SAMSUNG: Modify board files to use new PWM platform device
ARM: SAMSUNG: Rework private data handling in dev-backlight
pwm: Add new pwm-samsung driver
ARM: mach-mvebu: remove redundant DT parsing and validation
ARM: msm: Only compile io.c on platforms that use it
iommu/msm: Move mach includes to iommu directory
ARM: msm: Remove devices-iommu.c
ARM: msm: Move mach/board.h contents to common.h
ARM: msm: Migrate msm_timer to CLOCKSOURCE_OF_DECLARE
ARM: msm: Remove TMR and TMR0 static mappings
...
|
|
Commit 76abbdde2d95a3807d0dc6bf9f84d03d0dbd4f3d
pwm: Add sysfs interface
causes a kernel oops due to a null pointer dereference on PXA platforms.
This happens because the class added by the patch is registered in a
subsys_initcall (initcall4), but the pxa pwm driver is registered in
arch_initcall (initcall3). If the class is not registered before the
driver probe function runs, the oops occurs in device_add() when the
uninitialized pointers in struct class are dereferenced. I don't see a
reason that the driver must be an arch_initcall, so this patch makes it
a regular module_platform_driver (initcall6), preventing the oops.
Signed-off-by: Mike Dunn <[email protected]>
Acked-by: Robert Jarzmik <[email protected]>
Acked-by: Marek Vasut <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
Fix the following sparse warnings:
drivers/pwm/pwm-tiehrpwm.c:144:16: warning: incorrect type in argument 1 (different address spaces)
drivers/pwm/pwm-tiehrpwm.c:144:16: expected void const volatile [noderef] <asn:2>*addr
drivers/pwm/pwm-tiehrpwm.c:144:16: got void *
drivers/pwm/pwm-tiehrpwm.c:149:9: warning: incorrect type in argument 2 (different address spaces)
drivers/pwm/pwm-tiehrpwm.c:149:9: expected void volatile [noderef] <asn:2>*addr
drivers/pwm/pwm-tiehrpwm.c:149:9: got void *
drivers/pwm/pwm-tiehrpwm.c:157:18: warning: incorrect type in argument 1 (different address spaces)
drivers/pwm/pwm-tiehrpwm.c:157:18: expected void const volatile [noderef] <asn:2>*addr
drivers/pwm/pwm-tiehrpwm.c:157:18: got void *
drivers/pwm/pwm-tiehrpwm.c:160:9: warning: incorrect type in argument 2 (different address spaces)
drivers/pwm/pwm-tiehrpwm.c:160:9: expected void volatile [noderef] <asn:2>*addr
drivers/pwm/pwm-tiehrpwm.c:160:9: got void *
Signed-off-by: Jingoo Han <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
ecap_pwm_save_context() and ecap_pwm_restore_context() are only used
when CONFIG_PM_SLEEP is selected.
drivers/pwm/pwm-tiecap.c:293:13: warning: 'ecap_pwm_save_context' defined but not used [-Wunused-function]
drivers/pwm/pwm-tiecap.c:302:13: warning: 'ecap_pwm_restore_context' defined but not used [-Wunused-function]
Signed-off-by: Jingoo Han <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
Remove unneeded error handling on the result of a call to
platform_get_resource when the value is passed to devm_ioremap_resource.
Move the call to platform_get_resource adjacent to the call to
devm_ioremap_resource to make the connection between them more clear.
A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression pdev,res,n,e,e1;
expression ret != 0;
identifier l;
@@
- res = platform_get_resource(pdev, IORESOURCE_MEM, n);
... when != res
- if (res == NULL) { ... \(goto l;\|return ret;\) }
... when != res
+ res = platform_get_resource(pdev, IORESOURCE_MEM, n);
e = devm_ioremap_resource(e1, res);
// </smpl>
Signed-off-by: Julia Lawall <[email protected]>
Acked-by: Viresh Kumar <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|
|
Specify DT bindings for the TPU PWM controller and add OF support to the
driver.
Signed-off-by: Laurent Pinchart <[email protected]>
Acked-by: Stephen Warren <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
|