[PATCH v4 1/4] Documentation: devicetree: Add document bindings for leds-mt6323
From: sean.wang@mediatek.com (sean.wang at mediatek.com)
Date: 2017-02-24 18:47:48
Also in:
linux-devicetree, linux-leds, linux-mediatek, lkml
Subsystem:
led subsystem, open firmware and flattened device tree bindings, the rest · Maintainers:
Lee Jones, Pavel Machek, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
From: Sean Wang <sean.wang@mediatek.com> This patch adds documentation for devicetree bindings for LED support on MT6323 PMIC Signed-off-by: Sean Wang <sean.wang@mediatek.com> --- .../devicetree/bindings/leds/leds-mt6323.txt | 64 ++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/leds-mt6323.txt
diff --git a/Documentation/devicetree/bindings/leds/leds-mt6323.txt b/Documentation/devicetree/bindings/leds/leds-mt6323.txt
new file mode 100644
index 0000000..950b8c6
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-mt6323.txt@@ -0,0 +1,64 @@ +Device Tree Bindings for LED support on MT6323 PMIC + +MT6323 LED controller is subfunction provided by +MT6323 PMIC, so the LED controllers are defined as +the subnode of the function node provided by MT6323 +PMIC controller that is being defined as one kind of +Muti-Function Device (MFD) using shared bus called +PMIC wrapper for each subfunction to access remote +MT6323 PMIC hardware. + +For MT6323 MFD bindings see: +Documentation/devicetree/bindings/mfd/mt6397.txt +For MediaTek PMIC wrapper bindings see: +Documentation/devicetree/bindings/soc/mediatek/pwrap.txt + +There's sub-node for the LED controller that describes +the initial behavior for each LED physically and currently +only four LED sub-nodes can be supported. + +Required properties: +- compatible : Must be "mediatek,mt6323-led" +- reg : LED channel number (0..3) + +Optional properties: +- label : (optional) + see Documentation/devicetree/bindings/leds/common.txt +- linux,default-trigger : (optional) + see Documentation/devicetree/bindings/leds/common.txt +- default-state: (optional) The initial state of the LED + see Documentation/devicetree/bindings/leds/common.txt + +Example: + +&pwrap { + pmic: mt6323 { + compatible = "mediatek,mt6323"; + interrupt-parent = <&pio>; + interrupts = <150 IRQ_TYPE_LEVEL_HIGH>; + interrupt-controller; + #interrupt-cells = <2>; + + mt6323led: mt6323led{ + compatible = "mediatek,mt6323-led"; + + led0: isink0 { + reg = <0>; + label = "LED0" + linux,default-trigger = "timer"; + default-state = "on"; + }; + led1: isink1 { + reg = <1>; + label = "LED1"; + default-state = "on"; + }; + led2: isink2 { + reg = <2>; + label = "LED2"; + linux,default-trigger = "timer"; + default-state = "off"; + }; + }; + }; +};
--
1.9.1