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d19a8a7078
linux-next/drivers/leds
History
Russell King d19a8a7078 leds: leds-pwm: implement PWM inversion 
Some PWM outputs are wired such that the LED they're controlling is
connected to supply rather than ground.  These PWMs may not support
output inversion, or when they do, disabling the PWM may set the
PWM output low, causing a "brightness" value of zero to turn the LED
fully on.

The platform data for this driver already indicates that this was
thought about, and we have the "active_low" property there already.
However, the implementation for this is missing.

Add the trivial implementation for this feature.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
2014-05-08 14:28:07 +08:00
..
trigger ledtrig-cpu: Handle CPU hot(un)plugging 2014-02-27 09:56:54 -08:00
dell-led.c dell-led: add mic mute led interface 2014-05-08 14:28:07 +08:00
Kconfig leds: pca9685: Remove leds-pca9685 driver 2014-05-08 14:28:07 +08:00
led-class.c leds: convert class code to use dev_groups 2013-07-26 18:05:17 -07:00
led-core.c leds: Turn off led if blinking is disabled 2014-02-27 09:56:55 -08:00
led-triggers.c leds: make sure we unregister a trigger only once 2014-04-07 14:47:25 -07:00
leds-88pm860x.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-adp5520.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-asic3.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-atmel-pwm.c leds: use dev_get_platdata() 2013-08-26 17:22:11 -07:00
leds-bd2802.c leds: use dev_get_platdata() 2013-08-26 17:22:11 -07:00
leds-blinkm.c leds: blinkm: remove unnecessary spaces 2014-02-27 10:19:57 -08:00
leds-clevo-mail.c leds: clevo-mail: Make probe function __init 2014-03-13 15:53:31 -07:00
leds-cobalt-qube.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-cobalt-raq.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds 2012-12-15 12:52:42 -08:00
leds-da903x.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-da9052.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-dac124s085.c leds: dac124s085: Remove redundant spi_set_drvdata 2013-10-22 10:57:34 -07:00
leds-fsg.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-gpio-register.c leds: provide helper to register "leds-gpio" devices 2011-05-25 08:39:51 -07:00
leds-gpio.c leds-gpio: of: introduce MODULE_DEVICE_TABLE for module autoloading 2014-03-06 11:56:59 -08:00
leds-hp6xx.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-lm355x.c leds: use dev_get_platdata() 2013-08-26 17:22:11 -07:00
leds-lm3530.c leds: use dev_get_platdata() 2013-08-26 17:22:11 -07:00
leds-lm3533.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-lm3642.c leds: use dev_get_platdata() 2013-08-26 17:22:11 -07:00
leds-locomo.c drivers/leds: Add module.h to files using it implicitly 2011-10-31 19:31:49 -04:00
leds-lp55xx-common.c leds: lp5523: Support LED MUX configuration on running a pattern 2014-01-27 17:28:48 -08:00
leds-lp55xx-common.h leds: lp55xx: add common macros for device attributes 2013-08-26 17:22:12 -07:00
leds-lp3944.c leds: leds-lp3944, fix "sparse" warning "mixing different enum types" 2013-08-26 17:22:11 -07:00
leds-lp5521.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-lp5523.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-lp5562.c leds: lp5562: remove unnecessary parentheses 2014-02-27 10:17:15 -08:00
leds-lp8501.c lp5523, lp8501: comment improvements 2014-01-10 11:44:44 +01:00
leds-lp8788.c leds-lp8788: fix a parent device in _probe() 2013-02-01 17:47:05 -08:00
leds-lt3593.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-max8997.c leds: remove use of __devexit 2012-11-28 12:35:06 -08:00
leds-mc13783.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-net48xx.c leds: leds-net48xx: Use linux/io.h instead of asm/io.h 2012-11-27 14:49:28 -08:00
leds-netxbig.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-ns2.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-ot200.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-pca955x.c leds: use dev_get_platdata() 2013-08-26 17:22:11 -07:00
leds-pca963x.c leds-pca963x: Fix device tree parsing 2013-08-26 17:22:14 -07:00
leds-pca9532.c leds: use dev_get_platdata() 2013-08-26 17:22:11 -07:00
leds-pwm.c leds: leds-pwm: implement PWM inversion 2014-05-08 14:28:07 +08:00
leds-rb532.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds 2012-12-15 12:52:42 -08:00
leds-regulator.c leds: use dev_get_platdata() 2013-08-26 17:22:11 -07:00
leds-s3c24xx.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-ss4200.c leds: leds-ss4200: remove __initdata marker 2014-02-28 14:34:58 -08:00
leds-sunfire.c leds: use platform_{get,set}_drvdata() 2013-06-20 16:21:33 -07:00
leds-tca6507.c drivers: leds: leds-tca6507: check CONFIG_GPIOLIB whether defined for 'gpio_base' 2014-01-27 17:28:49 -08:00
leds-wm831x-status.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-wm8350.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-wrap.c leds: leds-wrap: Use <linux/io.h> instead of <asm/io.h> 2012-11-27 14:49:30 -08:00
leds.h leds: delay led_set_brightness if stopping soft-blink 2012-09-11 18:32:40 +08:00
Makefile leds: pca9685: Remove leds-pca9685 driver 2014-05-08 14:28:07 +08:00