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Date: Thu, 9 Nov 2017 11:34:16 +0800 From: Baolin Wang <baolin.wang@...eadtrum.com> To: <a.zummo@...ertech.it>, <alexandre.belloni@...e-electrons.com>, <robh+dt@...nel.org>, <mark.rutland@....com> CC: <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>, <linux-rtc@...r.kernel.org>, <broonie@...nel.org>, <baolin.wang@...aro.org>, <baolin.wang@...eadtrum.com> Subject: [PATCH v3 1/2] dt-bindings: rtc: Add Spreadtrum SC27xx RTC documentation This patch adds the binding documentation for Spreadtrum SC27xx series RTC device. Signed-off-by: Baolin Wang <baolin.wang@...eadtrum.com> --- Changes since v2: - No updates. Changes since v1: - Use a specific chip name as compatible string. - Remove useless alias. - Add the parent MFD node. --- .../devicetree/bindings/rtc/sprd,sc27xx-rtc.txt | 27 ++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 Documentation/devicetree/bindings/rtc/sprd,sc27xx-rtc.txt diff --git a/Documentation/devicetree/bindings/rtc/sprd,sc27xx-rtc.txt b/Documentation/devicetree/bindings/rtc/sprd,sc27xx-rtc.txt new file mode 100644 index 0000000..7c170da --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/sprd,sc27xx-rtc.txt @@ -0,0 +1,27 @@ +Spreadtrum SC27xx Real Time Clock + +Required properties: +- compatible: should be "sprd,sc2731-rtc". +- reg: address offset of rtc register. +- interrupt-parent: phandle for the interrupt controller. +- interrupts: rtc alarm interrupt. + +Example: + + sc2731_pmic: pmic@0 { + compatible = "sprd,sc2731"; + reg = <0>; + spi-max-frequency = <26000000>; + interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>; + interrupt-controller; + #interrupt-cells = <2>; + #address-cells = <1>; + #size-cells = <0>; + + rtc@280 { + compatible = "sprd,sc2731-rtc"; + reg = <0x280>; + interrupt-parent = <&sc2731_pmic>; + interrupts = <2 IRQ_TYPE_LEVEL_HIGH>; + }; + }; -- 1.7.9.5
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