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https://github.com/brain-hackers/u-boot-brain
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5917112c9e
Add a simple uclass for LEDs, so that these can be controlled by the device tree and activated when needed. LEDs are referred to by their label. This implementation requires a driver for each type of LED (e.g GPIO, I2C). Signed-off-by: Simon Glass <sjg@chromium.org>
24 lines
814 B
Plaintext
24 lines
814 B
Plaintext
Common leds properties.
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Optional properties for child nodes:
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- label : The label for this LED. If omitted, the label is
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taken from the node name (excluding the unit address).
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- linux,default-trigger : This parameter, if present, is a
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string defining the trigger assigned to the LED. Current triggers are:
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"backlight" - LED will act as a back-light, controlled by the framebuffer
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system
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"default-on" - LED will turn on (but for leds-gpio see "default-state"
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property in Documentation/devicetree/bindings/gpio/led.txt)
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"heartbeat" - LED "double" flashes at a load average based rate
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"ide-disk" - LED indicates disk activity
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"timer" - LED flashes at a fixed, configurable rate
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Examples:
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system-status {
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label = "Status";
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linux,default-trigger = "heartbeat";
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...
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};
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