linux-stable.git/drivers/pwm, branch v3.9.2

pwm: spear: Fix checking return value of clk_enable() and clk_prepare()

2013-05-11T14:18:17+00:00

commit 563861cd633ae52932843477bb6ca3f1c9e2f78b upstream.

The logic to check return value of clk_enable() and clk_prepare() is reversed,
fix it.

Signed-off-by: Axel Lin 
Acked-by: Viresh Kumar 
Signed-off-by: Thierry Reding 
Signed-off-by: Greg Kroah-Hartman

Merge tag 'for-3.9-rc1' of git://gitorious.org/linux-pwm/linux-pwm

2013-02-26T17:34:29+00:00

Pull PWM changes from Thierry Reding:
 "A new driver has been added to support the PWM mode of the timer
  counter blocks found on Atmel AT91 SoCs.  The VT8500 driver now
  supports changing the PWM signal polarity and the TI drivers (EHRPWM
  and ECAP) gained suspend and resume functionality.

  User drivers can now query the core for whether access to a PWM device
  will sleep (if the PWM chip is on a slow bus such as I2C or SPI).

  The pwm-backlight driver now handles the backlight BL_CORE_FBBLANK
  state in addition to the FB layer's blanking states.

  To round things off, a few fixes and cleanups are also included"

* tag 'for-3.9-rc1' of git://gitorious.org/linux-pwm/linux-pwm:
  pwm: twl: Use to_twl() instead of container_of()
  pwm: tegra: assume CONFIG_OF
  pwm_backlight: Validate dft_brightness in main probe function
  pwm: Export pwm_{set,get}_chip_data()
  pwm: Make Kconfig entries more consistent
  pwm: Add can_sleep property to drivers
  pwm: Add pwm_can_sleep() as exported API to users
  pwm-backlight: handle BL_CORE_FBBLANK state
  pwm: pwm-tiecap: Low power sleep support
  pwm: pwm-tiehrpwm: Low power sleep support
  pwm: pwm-tiehrpwm: Update the clock handling of pwm-tiehrpwm driver
  pwm: vt8500: Add polarity support
  pwm: vt8500: Register write busy test performed incorrectly
  pwm: atmel: add Timer Counter Block PWM driver

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds

2013-02-26T17:29:02+00:00

Pull LED subsystem update from Bryan Wu.

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds: (61 commits)
  leds: leds-sunfire: use dev_err()/pr_err() instead of printk()
  leds: 88pm860x: Add missing of_node_put()
  leds: tca6507: Use of_get_child_count()
  leds: leds-pwm: make it depend on PWM and not HAVE_PWM
  Documentation: leds: update LP55xx family devices
  leds-lp55xx: fix problem on removing LED attributes
  leds-lp5521/5523: add author and copyright description
  leds-lp5521/5523: use new lp55xx common header
  leds-lp55xx: clean up headers
  leds-lp55xx: clean up definitions
  leds-lp55xx: clean up unused data and functions
  leds-lp55xx: clean up _remove()
  leds-lp55xx: add new function for removing device attribtues
  leds-lp55xx: code refactoring on selftest function
  leds-lp55xx: use common device attribute driver function
  leds-lp55xx: support device specific attributes
  leds-lp5523: use generic firmware interface
  leds-lp5521: use generic firmware interface
  leds-lp55xx: support firmware interface
  leds-lp55xx: add new lp55xx_register_sysfs() for the firmware interface
  ...

pwm: twl: Use to_twl() instead of container_of()

2013-02-17T10:27:07+00:00

Always use to_twl() for converting into private data instead of
container_of().

Signed-off-by: Johannes Thumshirn 
Signed-off-by: Thierry Reding

pwm: tegra: assume CONFIG_OF

2013-02-15T22:27:51+00:00

Tegra only supports, and always enables, device tree. Remove all ifdefs
for DT support from the driver.

Signed-off-by: Stephen Warren 
Signed-off-by: Thierry Reding

pwm: Add devm_of_pwm_get() as exported API for users

2013-02-02T01:47:05+00:00

When booted with DT users can use devm version of of_pwm_get() to benefit
from automatic resource release.

Signed-off-by: Peter Ujfalusi 
Acked-by: Thierry Reding 
Signed-off-by: Bryan Wu

pwm: core: Rename of_pwm_request() to of_pwm_get() and export it

2013-02-02T01:47:05+00:00

Allow client driver to use of_pwm_get() to get the PWM they need. This
is needed for drivers which handle more than one PWM separately, like
leds-pwm driver, which have:

pwmleds {
	compatible = "pwm-leds";
	kpad {
		label = "omap4::keypad";
		pwms = <&twl_pwm 0 7812500>;
		max-brightness = <127>;
	};

	charging {
		label = "omap4:green:chrg";
		pwms = <&twl_pwmled 0 7812500>;
		max-brightness = <255>;
	};
};

in the dts files.

Signed-off-by: Peter Ujfalusi 
Acked-by: Thierry Reding 
Signed-off-by: Bryan Wu

pwm: Export pwm_{set,get}_chip_data()

2013-01-30T08:22:24+00:00

When building a driver as a module, these functions need to be exported
for linking to succeed.

Signed-off-by: Thierry Reding

pwm: Make Kconfig entries more consistent

2013-01-30T08:21:35+00:00

PWM is now consistently spelled in all uppercase letters. For the Atmel
driver the entry now also mentions Atmel to make it easier to find.

Signed-off-by: Thierry Reding

pwm: Add can_sleep property to drivers

2013-01-30T08:12:51+00:00

Calls to PWM drivers connected through I2C can sleep.
Use the new can_sleep property.

Acked-by: Peter Ujfalusi 
Signed-off-by: Florian Vaussard 
Signed-off-by: Thierry Reding