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Diffstat (limited to 'Documentation/devicetree/bindings/leds/leds-pca9532.txt')
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diff --git a/Documentation/devicetree/bindings/leds/leds-pca9532.txt b/Documentation/devicetree/bindings/leds/leds-pca9532.txt new file mode 100644 index 000000000000..f769c52e3643 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/leds-pca9532.txt @@ -0,0 +1,49 @@ +*NXP - pca9532 PWM LED Driver + +The PCA9532 family is SMBus I/O expander optimized for dimming LEDs. +The PWM support 256 steps. + +Required properties: + - compatible: + "nxp,pca9530" + "nxp,pca9531" + "nxp,pca9532" + "nxp,pca9533" + - reg - I2C slave address + +Each led is represented as a sub-node of the nxp,pca9530. + +Optional sub-node properties: + - label: see Documentation/devicetree/bindings/leds/common.txt + - type: Output configuration, see dt-bindings/leds/leds-pca9532.h (default NONE) + - linux,default-trigger: see Documentation/devicetree/bindings/leds/common.txt + - default-state: see Documentation/devicetree/bindings/leds/common.txt + This property is only valid for sub-nodes of type <PCA9532_TYPE_LED>. + +Example: + #include <dt-bindings/leds/leds-pca9532.h> + + leds: pca9530@60 { + compatible = "nxp,pca9530"; + reg = <0x60>; + + red-power { + label = "pca:red:power"; + type = <PCA9532_TYPE_LED>; + }; + green-power { + label = "pca:green:power"; + type = <PCA9532_TYPE_LED>; + }; + kernel-booting { + type = <PCA9532_TYPE_LED>; + default-state = "on"; + }; + sys-stat { + type = <PCA9532_TYPE_LED>; + default-state = "keep"; // don't touch, was set by U-Boot + }; + }; + +For more product information please see the link below: +http://nxp.com/documents/data_sheet/PCA9532.pdf |