mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-23 18:38:51 +09:00
![Simon Glass](/assets/img/avatar_default.png)
Add a simple driver which allows use of LEDs attached to GPIOs. The linux device tree binding is used. Signed-off-by: Simon Glass <sjg@chromium.org>
27 lines
926 B
Plaintext
27 lines
926 B
Plaintext
config LED
|
|
bool "Enable LED support"
|
|
depends on DM
|
|
help
|
|
Many boards have LEDs which can be used to signal status or alerts.
|
|
U-Boot provides a uclass API to implement this feature. LED drivers
|
|
can provide access to board-specific LEDs. Use of the device tree
|
|
for configuration is encouraged.
|
|
|
|
config SPL_LED_SUPPORT
|
|
bool "Enable LED support in SPL"
|
|
depends on LED
|
|
help
|
|
The LED subsystem adds a small amount of overhead to the image.
|
|
If this is acceptable and you have a need to use LEDs in SPL,
|
|
enable this option. You will need to enable device tree in SPL
|
|
for this to work.
|
|
|
|
config LED_GPIO
|
|
bool "LED support for GPIO-connected LEDs"
|
|
depends on LED && DM_GPIO
|
|
help
|
|
Enable support for LEDs which are connected to GPIO lines. These
|
|
GPIOs may be on the SoC or some other device which provides GPIOs.
|
|
The GPIO driver must used driver model. LEDs are configured using
|
|
the device tree.
|