1menu "LED Support" 2 3config LED 4 bool "Enable LED support" 5 depends on DM 6 help 7 Many boards have LEDs which can be used to signal status or alerts. 8 U-Boot provides a uclass API to implement this feature. LED drivers 9 can provide access to board-specific LEDs. Use of the device tree 10 for configuration is encouraged. 11 12config SPL_LED 13 bool "Enable LED support in SPL" 14 depends on SPL && SPL_DM 15 help 16 The LED subsystem adds a small amount of overhead to the image. 17 If this is acceptable and you have a need to use LEDs in SPL, 18 enable this option. You will need to enable device tree in SPL 19 for this to work. 20 21config LED_GPIO 22 bool "LED support for GPIO-connected LEDs" 23 depends on LED && DM_GPIO 24 help 25 Enable support for LEDs which are connected to GPIO lines. These 26 GPIOs may be on the SoC or some other device which provides GPIOs. 27 The GPIO driver must used driver model. LEDs are configured using 28 the device tree. 29 30config SPL_LED_GPIO 31 bool "LED support for GPIO-connected LEDs in SPL" 32 depends on SPL_LED && DM_GPIO 33 help 34 This option is an SPL-variant of the LED_GPIO option. 35 See the help of LED_GPIO for details. 36 37endmenu 38