272 lines
6.6 KiB
YAML
272 lines
6.6 KiB
YAML
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/leds/leds-lp55xx.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: TI/National Semiconductor LP55xx and LP8501 LED Drivers
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maintainers:
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- Jacek Anaszewski <jacek.anaszewski@gmail.com>
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- Pavel Machek <pavel@ucw.cz>
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description: |
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Bindings for the TI/National Semiconductor LP55xx and LP8501 multi channel
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LED Drivers.
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For more product information please see the link below:
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https://www.ti.com/lit/gpn/lp5521
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https://www.ti.com/lit/gpn/lp5523
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https://www.ti.com/lit/gpn/lp55231
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https://www.ti.com/lit/gpn/lp5562
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https://www.ti.com/lit/gpn/lp8501
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properties:
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compatible:
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enum:
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- national,lp5521
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- national,lp5523
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- ti,lp55231
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- ti,lp5562
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- ti,lp8501
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reg:
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maxItems: 1
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description: I2C slave address
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clock-mode:
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$ref: /schemas/types.yaml#/definitions/uint8
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description: |
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Input clock mode
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enum:
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- 0 # automode
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- 1 # internal
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- 2 # external
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enable-gpios:
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maxItems: 1
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description: |
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GPIO attached to the chip's enable pin
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label: true
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pwr-sel:
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$ref: /schemas/types.yaml#/definitions/uint8
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description: |
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LP8501 specific property. Power selection for output channels.
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enum:
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- 0 # D1~9 are connected to VDD
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- 1 # D1~6 with VDD, D7~9 with VOUT
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- 2 # D1~6 with VOUT, D7~9 with VDD
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- 3 # D1~9 are connected to VOUT
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'#address-cells':
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const: 1
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'#size-cells':
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const: 0
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patternProperties:
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'^multi-led@[0-8]$':
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type: object
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$ref: leds-class-multicolor.yaml#
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unevaluatedProperties: false
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properties:
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reg:
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maximum: 8
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'#address-cells':
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const: 1
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'#size-cells':
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const: 0
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patternProperties:
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"^led@[0-8]$":
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type: object
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$ref: common.yaml#
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unevaluatedProperties: false
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properties:
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led-cur:
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$ref: /schemas/types.yaml#/definitions/uint8
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description: |
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Current setting at each LED channel (mA x10, 0 if LED is not connected)
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minimum: 0
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maximum: 255
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max-cur:
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$ref: /schemas/types.yaml#/definitions/uint8
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description: Maximun current at each LED channel.
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reg:
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maximum: 8
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required:
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- reg
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"^led@[0-8]$":
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type: object
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$ref: common.yaml#
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unevaluatedProperties: false
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properties:
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led-cur:
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$ref: /schemas/types.yaml#/definitions/uint8
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description: |
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Current setting at each LED channel (mA x10, 0 if LED is not connected)
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minimum: 0
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maximum: 255
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max-cur:
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$ref: /schemas/types.yaml#/definitions/uint8
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description: Maximun current at each LED channel.
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reg:
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description: |
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Output channel for the LED. This is zero based channel identifier and
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the data sheet is a one based channel identifier.
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reg value to output to LED output number
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enum:
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- 0 # LED output D1
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- 1 # LED output D2
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- 2 # LED output D3
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- 3 # LED output D4
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- 4 # LED output D5
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- 5 # LED output D6
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- 6 # LED output D7
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- 7 # LED output D8
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- 8 # LED output D9
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chan-name:
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$ref: /schemas/types.yaml#/definitions/string
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description: name of channel
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required:
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- compatible
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- reg
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/leds/common.h>
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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led-controller@32 {
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "ti,lp8501";
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reg = <0x32>;
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clock-mode = /bits/ 8 <2>;
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pwr-sel = /bits/ 8 <3>; /* D1~9 connected to VOUT */
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led@0 {
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reg = <0>;
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chan-name = "d1";
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led-cur = /bits/ 8 <0x14>;
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max-cur = /bits/ 8 <0x20>;
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};
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led@1 {
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reg = <1>;
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chan-name = "d2";
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led-cur = /bits/ 8 <0x14>;
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max-cur = /bits/ 8 <0x20>;
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};
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led@2 {
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reg = <2>;
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chan-name = "d3";
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led-cur = /bits/ 8 <0x14>;
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max-cur = /bits/ 8 <0x20>;
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};
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led@3 {
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reg = <3>;
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chan-name = "d4";
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led-cur = /bits/ 8 <0x14>;
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max-cur = /bits/ 8 <0x20>;
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};
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led@4 {
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reg = <4>;
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chan-name = "d5";
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led-cur = /bits/ 8 <0x14>;
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max-cur = /bits/ 8 <0x20>;
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};
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led@5 {
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reg = <5>;
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chan-name = "d6";
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led-cur = /bits/ 8 <0x14>;
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max-cur = /bits/ 8 <0x20>;
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};
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led@6 {
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reg = <6>;
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chan-name = "d7";
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led-cur = /bits/ 8 <0x14>;
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max-cur = /bits/ 8 <0x20>;
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};
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led@7 {
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reg = <7>;
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chan-name = "d8";
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led-cur = /bits/ 8 <0x14>;
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max-cur = /bits/ 8 <0x20>;
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};
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led@8 {
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reg = <8>;
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chan-name = "d9";
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led-cur = /bits/ 8 <0x14>;
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max-cur = /bits/ 8 <0x20>;
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};
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};
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led-controller@33 {
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "national,lp5523";
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reg = <0x33>;
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clock-mode = /bits/ 8 <0>;
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multi-led@2 {
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <0x2>;
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color = <LED_COLOR_ID_RGB>;
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function = LED_FUNCTION_STANDBY;
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linux,default-trigger = "heartbeat";
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led@0 {
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led-cur = /bits/ 8 <50>;
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max-cur = /bits/ 8 <100>;
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reg = <0x0>;
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color = <LED_COLOR_ID_GREEN>;
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};
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led@1 {
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led-cur = /bits/ 8 <50>;
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max-cur = /bits/ 8 <100>;
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reg = <0x1>;
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color = <LED_COLOR_ID_BLUE>;
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};
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led@6 {
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led-cur = /bits/ 8 <50>;
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max-cur = /bits/ 8 <100>;
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reg = <0x6>;
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color = <LED_COLOR_ID_RED>;
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};
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};
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};
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};
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...
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