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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/leds/leds-gpio.yaml | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | Documentation/devicetree/bindings/leds/leds-gpio.yaml | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/leds/leds-gpio.yaml b/Documentation/devicetree/bindings/leds/leds-gpio.yaml new file mode 100644 index 000000000..7ad2baeda --- /dev/null +++ b/Documentation/devicetree/bindings/leds/leds-gpio.yaml @@ -0,0 +1,85 @@ +# SPDX-License-Identifier: GPL-2.0-only +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/leds/leds-gpio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: LEDs connected to GPIO lines + +maintainers: + - Jacek Anaszewski <jacek.anaszewski@gmail.com> + - Pavel Machek <pavel@ucw.cz> + +description: + Each LED is represented as a sub-node of the gpio-leds device. Each + node's name represents the name of the corresponding LED. + +properties: + compatible: + const: gpio-leds + +patternProperties: + # The first form is preferred, but fall back to just 'led' anywhere in the + # node name to at least catch some child nodes. + "(^led-[0-9a-f]$|led)": + type: object + + $ref: common.yaml# + + properties: + gpios: + maxItems: 1 + + retain-state-suspended: + description: + The suspend state can be retained.Such as charge-led gpio. + type: boolean + + retain-state-shutdown: + description: + Retain the state of the LED on shutdown. Useful in BMC systems, for + example when the BMC is rebooted while the host remains up. + type: boolean + + required: + - gpios + +additionalProperties: false + +examples: + - | + + #include <dt-bindings/gpio/gpio.h> + #include <dt-bindings/leds/common.h> + + leds { + compatible = "gpio-leds"; + led-0 { + gpios = <&mcu_pio 0 GPIO_ACTIVE_LOW>; + linux,default-trigger = "disk-activity"; + function = LED_FUNCTION_DISK; + }; + + led-1 { + gpios = <&mcu_pio 1 GPIO_ACTIVE_HIGH>; + /* Keep LED on if BIOS detected hardware fault */ + default-state = "keep"; + function = LED_FUNCTION_FAULT; + }; + }; + + run-control { + compatible = "gpio-leds"; + led-0 { + gpios = <&mpc8572 6 GPIO_ACTIVE_HIGH>; + color = <LED_COLOR_ID_RED>; + default-state = "off"; + }; + led-1 { + gpios = <&mpc8572 7 GPIO_ACTIVE_HIGH>; + color = <LED_COLOR_ID_GREEN>; + default-state = "on"; + }; + }; + +... |