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dt-bindings: rtc: Add Spreadtrum SC27xx RTC documentation

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This patch adds the binding documentation for Spreadtrum SC27xx series
RTC device.

Signed-off-by: Baolin Wang <[email protected]>
Acked-by: Rob Herring <[email protected]>
Signed-off-by: Alexandre Belloni <[email protected]>
This commit is contained in:
Baolin Wang 2017-11-09 11:34:16 +08:00 • committed by Alexandre Belloni
commit 8f6596f4c9
1 changed files with 27 additions and 0 deletions
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27
Documentation/devicetree/bindings/rtc/sprd,sc27xx-rtc.txt Normal file
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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>;
};
};