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# Copyright 2022 The ChromiumOS Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
description: PWM LED pins parent node
compatible: "cros-ec,pwm-led-pins"
child-binding:
description: |
Each child node describes all the PWM pins that need to be altered to set
the color of a specific LED.
e.g. For a battery LED, a node looks like this.
battery_led: battery-led {
led-id = "EC_LED_ID_BATTERY_LED";
led-pwms = <&pwm_led_y &pwm_led_b>;
};
properties:
led-id:
type: string
required: true
description: |
This property is required by the EC_CMD_LED_CONTROL host command.
It must match the enum names defined in ec_commands.h.
enum:
- EC_LED_ID_BATTERY_LED
- EC_LED_ID_POWER_LED
- EC_LED_ID_ADAPTER_LED
- EC_LED_ID_LEFT_LED
- EC_LED_ID_RIGHT_LED
- EC_LED_ID_RECOVERY_HW_REINIT_LED
- EC_LED_ID_SYSRQ_DEBUG_LED
led-pwms:
type: phandles
required: true
description: |
This property is used to specify an array of pwms to set a
particular color.
child-binding:
description: |
Each grandchild node describes all the colors supported by the child LED.
e.g. For blue and amber PWM channels, in order to set color amber, a node
looks like this where 100 is PWM duty cycle in percentage.
color-amber {
led-color = "LED_AMBER";
led-values = <100 0>;
};
properties:
led-color:
type: string
required: true
description: |
This property is used to identify pin nodes based on color enum.
It is required by the EC_CMD_LED_CONTROL host command.
enum:
- LED_OFF
- LED_RED
- LED_GREEN
- LED_BLUE
- LED_YELLOW
- LED_WHITE
- LED_AMBER
br-color:
type: string
required: false
description: |
This is used in the ectool brightness range APIs. It must match
the enum names defined in ec_commands.h.
enum:
- EC_LED_COLOR_RED
- EC_LED_COLOR_GREEN
- EC_LED_COLOR_BLUE
- EC_LED_COLOR_YELLOW
- EC_LED_COLOR_WHITE
- EC_LED_COLOR_AMBER
led-values:
type: array
required: true
description: |
This property is used to specify an array of values to set on the
corresponding pwm-pins to set a particular color.
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