starfive-tech/u-boot.git/drivers/misc/gpio_led.c, branch master

status_led: Kconfig migration

2017-01-21T20:12:33+00:00

Move all of the status LED feature to drivers/led/Kconfig. The LED status definitions were moved from the board configuration files to the defconfig files. TBD: Move all of the definitions in the include/status_led.h to the relevant board's defconfig files. Tested boards: CL-SOM-AM57x, CM-T335 Signed-off-by: Uri Mashiach

add generic stubs for GPIO LEDs

2015-10-23T16:15:28+00:00

For boards that support LEDs driven via GPIO (CONFIG_GPIO_LED), it may be useful to have some generic stubs (wrapper functions) for the "colored" LEDs. This allows defining STATUS_LED_* values directly to GPIO numbers, e.g.: #define STATUS_LED_GREEN 248 /* = PH24 */ To keep those optional, it's probably best to introduce an additional configuration setting. I've chosen CONFIG_GPIO_LED_STUBS for that. Placing the code in drivers/misc/gpio_led.c also ensures that it automatically depends on CONFIG_GPIO_LED too. Signed-off-by: Bernhard Nortmann Reviewed-by: Simon Glass

gpio_led: add support for inverted polarity

2013-11-25T15:41:52+00:00

Some GPIO connected LEDs have inverted polarity. Introduce new config option: CONFIG_GPIO_LED_INVERTED_TABLE for the specifying the inverted GPIO LEDs list and add support for this in the gpio_led driver. Signed-off-by: Igor Grinberg Tested-by: Ilya Ledvich

gpio_led: check gpio_request() return value

2013-11-25T15:41:52+00:00

Add a check for the gpio_request() function return value and do not try to configure the GPIO if the gpio_request() call fails. Also, print an error message indicating the gpio_request() has failed. Signed-off-by: Igor Grinberg Tested-by: Ilya Ledvich

gpio_led: add gpio_request to __led_init

2010-07-12T15:30:52+00:00

This patch adds the gpio usage request. The polarity is changed to positive as suggested by Mike Frysinger. Signed-off-by: Thomas Chou Signed-off-by: Scott McNutt

misc: add gpio based status led driver

2010-05-28T14:56:03+00:00

This patch adds a status led driver followed the GPIO access conventions of Linux. The led mask is used to specify the gpio pin. Signed-off-by: Thomas Chou Tested-by: Ian Abbott Signed-off-by: Scott McNutt