kernel/git/stable/linux.git/drivers/pwm/Makefile, branch linux-3.15.y

pwm: add support for Intel Low Power Subsystem PWM

2014-04-01T10:03:40+00:00

Add support for Intel Low Power I/O subsystem PWM controllers found on Intel BayTrail SoC. Signed-off-by: Mika Westerberg Signed-off-by: Chew, Kean Ho Signed-off-by: Chang, Rebecca Swee Fun Signed-off-by: Chew, Chiau Ee Signed-off-by: Thierry Reding

pwm: Add CLPS711X PWM support

2014-03-18T20:15:16+00:00

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 Signed-off-by: Thierry Reding

pwm: Add Freescale FTM PWM driver support

2014-03-18T17:01:56+00:00

The FTM PWM device can be found on Vybrid VF610 Tower and Layerscape LS-1 SoCs. Signed-off-by: Xiubo Li Signed-off-by: Alison Wang Signed-off-by: Jingchang Lu Reviewed-by: Sascha Hauer Reviewed-by: Yuan Yao Signed-off-by: Thierry Reding

Merge tag 'pwm/for-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

2014-01-27T16:15:51+00:00

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

pwm: Add LP3943 PWM driver

2014-01-21T08:28:00+00:00

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 Acked-by: Thierry Reding Signed-off-by: Lee Jones

pwm: atmel-pwm: Add Atmel PWM controller driver

2013-12-17T10:26:42+00:00

Add a PWM framework driver for the PWM controller found on Atmel SoCs. Signed-off-by: Bo Shen Acked-by: Alexandre Belloni Acked-by: Jean-Christophe PLAGNIOL-VILLARD [thierry.reding: coding style and other minor cleanups] Signed-off-by: Thierry Reding

pwm: add ep93xx PWM support

2013-10-17T14:07:19+00:00

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 Cc: Ryan Mallon Acked-by: Arnd Bergmann Acked-by: Greg Kroah-Hartman Signed-off-by: Thierry Reding

pwm: Add Renesas TPU PWM driver

2013-06-21T09:33:28+00:00

The Timer Pulse Unit (TPU) is a 4-channels 16-bit timer used to generate waveforms. This driver exposes PWM functions through the PWM API for other drivers to use. The code is loosely based on the leds-renesas-tpu driver by Magnus Damm and the TPU PWM driver shipped in the Armadillo EVA 800 kernel sources. Signed-off-by: Laurent Pinchart Signed-off-by: Axel Lin Tested-by: Simon Horman Signed-off-by: Thierry Reding

pwm: Add sysfs interface

2013-06-21T09:32:51+00:00

Add a simple sysfs interface to the generic PWM framework. /sys/class/pwm/ `-- pwmchipN/ for each PWM chip |-- export (w/o) ask the kernel to export a PWM channel |-- npwm (r/o) number of PWM channels in this PWM chip |-- pwmX/ for each exported PWM channel | |-- duty_cycle (r/w) duty cycle (in nanoseconds) | |-- enable (r/w) enable/disable PWM | |-- period (r/w) period (in nanoseconds) | `-- polarity (r/w) polarity of PWM (normal/inversed) `-- unexport (w/o) return a PWM channel to the kernel Based on work by Lars Poeschel. Signed-off-by: H Hartley Sweeten Cc: Thierry Reding Cc: Lars Poeschel Cc: Ryan Mallon Cc: Rob Landley Signed-off-by: Thierry Reding

pwm: add pca9685 driver

2013-06-12T11:13:18+00:00

Add pwm driver for the NXP pca9685 16 channel pwm-led controller. The driver is really barebones at this stage. E.g. the OE' pin and therefore the corresponding registers are not supported. The driver was tested on a HW where this pin is tied to GND. Signed-off-by: Steffen Trumtrar [thierry.reding@gmail.com: style and whitespace cleanups] Signed-off-by: Thierry Reding