1*0b11dbf7SMasahiro Yamadamenu "LED Support" 2*0b11dbf7SMasahiro Yamada 35917112cSSimon Glassconfig LED 45917112cSSimon Glass bool "Enable LED support" 55917112cSSimon Glass depends on DM 65917112cSSimon Glass help 75917112cSSimon Glass Many boards have LEDs which can be used to signal status or alerts. 85917112cSSimon Glass U-Boot provides a uclass API to implement this feature. LED drivers 95917112cSSimon Glass can provide access to board-specific LEDs. Use of the device tree 105917112cSSimon Glass for configuration is encouraged. 115917112cSSimon Glass 125917112cSSimon Glassconfig SPL_LED_SUPPORT 135917112cSSimon Glass bool "Enable LED support in SPL" 145917112cSSimon Glass depends on LED 155917112cSSimon Glass help 165917112cSSimon Glass The LED subsystem adds a small amount of overhead to the image. 175917112cSSimon Glass If this is acceptable and you have a need to use LEDs in SPL, 185917112cSSimon Glass enable this option. You will need to enable device tree in SPL 195917112cSSimon Glass for this to work. 205ac76badSSimon Glass 215ac76badSSimon Glassconfig LED_GPIO 225ac76badSSimon Glass bool "LED support for GPIO-connected LEDs" 235ac76badSSimon Glass depends on LED && DM_GPIO 245ac76badSSimon Glass help 255ac76badSSimon Glass Enable support for LEDs which are connected to GPIO lines. These 265ac76badSSimon Glass GPIOs may be on the SoC or some other device which provides GPIOs. 275ac76badSSimon Glass The GPIO driver must used driver model. LEDs are configured using 285ac76badSSimon Glass the device tree. 29*0b11dbf7SMasahiro Yamada 30*0b11dbf7SMasahiro Yamadaendmenu 31