From: Alexander Sverdlin <alexander.sverdlin@xxxxxxxxxxx> Add bindings for Texas Instruments' LP8864/LP8866 LED-backlight drivers. Note that multiple channels in these models are used for load-balancing and brightness is controlled gobally, so from a user perspective it's only one LED. Reviewed-by: Rob Herring (Arm) <robh@xxxxxxxxxx> Signed-off-by: Alexander Sverdlin <alexander.sverdlin@xxxxxxxxxxx> --- v5: no changes v4: no changes v3: no changes v2: ti,8860 has been decoupled from this series and converted to YAML separately .../bindings/leds/backlight/ti,lp8864.yaml | 80 +++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/backlight/ti,lp8864.yaml diff --git a/Documentation/devicetree/bindings/leds/backlight/ti,lp8864.yaml b/Documentation/devicetree/bindings/leds/backlight/ti,lp8864.yaml new file mode 100644 index 000000000000..d44232d462bd --- /dev/null +++ b/Documentation/devicetree/bindings/leds/backlight/ti,lp8864.yaml @@ -0,0 +1,80 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/leds/backlight/ti,lp8864.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Texas Instruments - LP8864/LP8866 4/6-Channel LED Driver family + +maintainers: + - Andrew Davis <afd@xxxxxx> + - Alexander Sverdlin <alexander.sverdlin@xxxxxxxxxxx> + +description: | + LP8866-Q1, LP8866S-Q1, LP8864-Q1, LP8864S-Q1 are display LED-backlight drivers + with 4/6 channels. LED brightness can be controlled globally through the I2C + interface or PWM input. + + For more product information please see the links below: + https://www.ti.com/product/LP8864-Q1 + https://www.ti.com/product/LP8864S-Q1 + https://www.ti.com/product/LP8866-Q1 + https://www.ti.com/product/LP8866S-Q1 + +properties: + compatible: + const: ti,lp8864 + + reg: + maxItems: 1 + description: I2C slave address + + enable-gpios: + maxItems: 1 + description: GPIO pin to enable (active high) / disable the device + + vled-supply: + description: LED supply + + led: + type: object + $ref: common.yaml# + properties: + function: true + color: true + label: true + linux,default-trigger: true + + additionalProperties: false + +required: + - compatible + - reg + - led + +additionalProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + #include <dt-bindings/leds/common.h> + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + led-controller@3a { + compatible = "ti,lp8864"; + reg = <0x3a>; + enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>; + vled-supply = <&vbatt>; + + led { + function = LED_FUNCTION_BACKLIGHT; + color = <LED_COLOR_ID_WHITE>; + linux,default-trigger = "backlight"; + }; + }; + }; + +... -- 2.47.1
