From ebde8820a04dd73a09f50ba84b8cf8ec3773d6ba Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Fri, 6 Oct 2017 06:12:41 +0200 Subject: dts: update to v4.14-rc1 Signed-off-by: Sascha Hauer --- dts/Bindings/leds/leds-pca955x.txt | 88 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 88 insertions(+) create mode 100644 dts/Bindings/leds/leds-pca955x.txt (limited to 'dts/Bindings/leds/leds-pca955x.txt') diff --git a/dts/Bindings/leds/leds-pca955x.txt b/dts/Bindings/leds/leds-pca955x.txt new file mode 100644 index 0000000000..7984efb767 --- /dev/null +++ b/dts/Bindings/leds/leds-pca955x.txt @@ -0,0 +1,88 @@ +* NXP - pca955x LED driver + +The PCA955x family of chips are I2C LED blinkers whose pins not used +to control LEDs can be used as general purpose I/Os. The GPIO pins can +be input or output, and output pins can also be pulse-width controlled. + +Required properties: +- compatible : should be one of : + "nxp,pca9550" + "nxp,pca9551" + "nxp,pca9552" + "nxp,pca9553" +- #address-cells: must be 1 +- #size-cells: must be 0 +- reg: I2C slave address. depends on the model. + +Optional properties: +- gpio-controller: allows pins to be used as GPIOs. +- #gpio-cells: must be 2. +- gpio-line-names: define the names of the GPIO lines + +LED sub-node properties: +- reg : number of LED line. + from 0 to 1 for the pca9550 + from 0 to 7 for the pca9551 + from 0 to 15 for the pca9552 + from 0 to 3 for the pca9553 +- type: (optional) either + PCA9532_TYPE_NONE + PCA9532_TYPE_LED + PCA9532_TYPE_GPIO + see dt-bindings/leds/leds-pca955x.h (default to LED) +- label : (optional) + see Documentation/devicetree/bindings/leds/common.txt +- linux,default-trigger : (optional) + see Documentation/devicetree/bindings/leds/common.txt + +Examples: + +pca9552: pca9552@60 { + compatible = "nxp,pca9552"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0x60>; + + gpio-controller; + #gpio-cells = <2>; + gpio-line-names = "GPIO12", "GPIO13", "GPIO14", "GPIO15"; + + gpio@12 { + reg = <12>; + type = ; + }; + gpio@13 { + reg = <13>; + type = ; + }; + gpio@14 { + reg = <14>; + type = ; + }; + gpio@15 { + reg = <15>; + type = ; + }; + + led@0 { + label = "red:power"; + linux,default-trigger = "default-on"; + reg = <0>; + type = ; + }; + led@1 { + label = "green:power"; + reg = <1>; + type = ; + }; + led@2 { + label = "pca9552:yellow"; + reg = <2>; + type = ; + }; + led@3 { + label = "pca9552:white"; + reg = <3>; + type = ; + }; +}; -- cgit v1.2.3