drivers/led/Kconfig

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