From mboxrd@z Thu Jan 1 00:00:00 1970 From: Subject: [PATCH v5 1/4] dt-bindings: leds: Add document bindings for leds-mt6323 Date: Fri, 3 Mar 2017 21:56:22 +0800 Message-ID: <1488549385-19899-2-git-send-email-sean.wang@mediatek.com> References: <1488549385-19899-1-git-send-email-sean.wang@mediatek.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1488549385-19899-1-git-send-email-sean.wang@mediatek.com> Sender: linux-leds-owner@vger.kernel.org To: rpurdie@rpsys.net, jacek.anaszewski@gmail.com, lee.jones@linaro.org, matthias.bgg@gmail.com, pavel@ucw.cz, robh+dt@kernel.org, mark.rutland@arm.com Cc: devicetree@vger.kernel.org, linux-leds@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, keyhaede@gmail.com, Sean Wang List-Id: devicetree@vger.kernel.org From: Sean Wang This patch adds documentation for devicetree bindings for LED support on MT6323 PMIC Signed-off-by: Sean Wang --- .../devicetree/bindings/leds/leds-mt6323.txt | 63 ++++++++++++++++++++++ 1 file changed, 63 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..135c441 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/leds-mt6323.txt @@ -0,0 +1,63 @@ +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" +- address-cells : Must be 1 +- size-cells : Must be 0 + +LED sub-node properties: +- reg : LED channel number (0..3) +- 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: + + pmic: mt6323 { + compatible = "mediatek,mt6323"; + + ... + + mt6323led: leds { + compatible = "mediatek,mt6323-led"; + #address-cells = <1>; + #size-cells = <0>; + + led@0 { + reg = <0>; + label = "LED0"; + linux,default-trigger = "timer"; + default-state = "on"; + }; + led@1 { + reg = <1>; + label = "LED1"; + default-state = "off"; + }; + led@2 { + reg = <2>; + label = "LED2"; + default-state = "on"; + }; + }; + }; -- 1.9.1