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# Copyright 2022 The Chromium OS Authors. All rights reserved.
# 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"
properties:
pwm-frequency:
type: int
required: true
description: PWM frequency in Hz.
child-binding:
description: Each child node describes all the PWM pins that need to be
altered to set a specific color. Eg. 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-pins = <&pwm_led_y 100>,
<&pwm_led_b 0>;
};
properties:
led-color:
type: string
required: true
description: Used to link the color nodes with the pin nodes
enum:
- LED_OFF
- LED_RED
- LED_GREEN
- LED_BLUE
- LED_YELLOW
- LED_WHITE
- LED_AMBER
led-id:
type: string
required: true
description: Used to link the color nodes with the pin nodes in
case of multiple LEDs. Also required by ectool to
identify led-ids supported. It needs to 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
br-color:
type: string
required: false
description: This is used in the ectool brightness range APIs.
It needs to 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-pins:
type: phandle-array
required: false
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