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Current Path: /usr/src/sys/contrib/device-tree/Bindings/leds

usr / src / sys / contrib / device-tree / Bindings / leds /

📁 ..
📄 ams,as3645a.txt(2.44 KB)
📁 backlight
📄 common.txt(38 B)
📄 common.yaml(7.81 KB)
📄 cznic,turris-omnia-leds.yaml(2.17 KB)
📁 irled
📄 leds-aat1290.txt(2.86 KB)
📄 leds-an30259a.txt(1.33 KB)
📄 leds-aw2013.yaml(1.86 KB)
📄 leds-bcm6328.txt(8.25 KB)
📄 leds-bcm6358.txt(2.97 KB)
📄 leds-class-multicolor.yaml(1.22 KB)
📄 leds-cpcap.txt(939 B)
📄 leds-cr0014114.txt(1.37 KB)
📄 leds-el15203000.txt(1.69 KB)
📄 leds-gpio.yaml(2.04 KB)
📄 leds-is31fl319x.txt(1.63 KB)
📄 leds-is31fl32xx.txt(1.14 KB)
📄 leds-ktd2692.txt(1.65 KB)
📄 leds-lm3532.txt(3.59 KB)
📄 leds-lm3601x.txt(1.34 KB)
📄 leds-lm36274.txt(2.18 KB)
📄 leds-lm3692x.txt(1.84 KB)
📄 leds-lm3697.txt(2.03 KB)
📄 leds-lp55xx.txt(4.26 KB)
📄 leds-lp55xx.yaml(5.57 KB)
📄 leds-lp8860.txt(1.26 KB)
📄 leds-lt3593.txt(1.13 KB)
📄 leds-max77650.yaml(1.03 KB)
📄 leds-mt6323.txt(1.62 KB)
📄 leds-netxbig.txt(2.3 KB)
📄 leds-ns2.txt(1.05 KB)
📄 leds-pca9532.txt(1.31 KB)
📄 leds-pca955x.txt(1.88 KB)
📄 leds-pm8058.txt(1.96 KB)
📄 leds-powernv.txt(613 B)
📄 leds-pwm.txt(1.36 KB)
📄 leds-sc27xx-bltc.txt(993 B)
📄 leds-sgm3140.yaml(1.42 KB)
📄 leds-spi-byte.txt(1.25 KB)
📄 leds-tlc591xx.txt(786 B)
📄 leds-trigger-pattern.txt(1.96 KB)
📄 pca963x.txt(1.44 KB)
📄 register-bit-led.txt(2.3 KB)
📄 rohm,bd71828-leds.yaml(1.42 KB)
📄 tca6507.txt(1.01 KB)
📄 trigger-source.yaml(646 B)

Editing: leds-gpio.yaml

# 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";
        };
    };

...

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