[PATCH 2/5] Documentation: dt: Add binding info for jz4740-rtc driver

[Paul Cercueil]

Signed-off-by: Paul Cercueil <paul@xxxxxxxxxxxxxxx>
---
 .../devicetree/bindings/rtc/ingenic,jz4740-rtc.txt | 38 ++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/rtc/ingenic,jz4740-rtc.txt

diff --git a/Documentation/devicetree/bindings/rtc/ingenic,jz4740-rtc.txt b/Documentation/devicetree/bindings/rtc/ingenic,jz4740-rtc.txt
new file mode 100644
index 0000000..71e4ad0
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/ingenic,jz4740-rtc.txt
@@ -0,0 +1,38 @@
+JZ4740 and similar SoCs real-time clock driver
+
+Required properties:
+
+- compatible: One of:
+  - "ingenic,jz4740-rtc" - for use with the JZ4740 SoC
+  - "ingenic,jz4780-rtc" - for use with the JZ4780 SoC
+- reg: Address range of rtc register set
+- interrupts: IRQ number for the alarm interrupt
+- interrupt-parent: phandle of the interrupt controller
+- clocks: phandle to the "rtc" clock
+- clock-names: must be "rtc"
+
+Optional properties:
+- system-power-controller: To use this component as the
+  system power controller
+- reset-pin-assert-time: Reset pin low-level assertion time
+  after wakeup (default 60ms; range 0-125ms if RTC clock at 
+  32 kHz)
+- min-wakeup-pin-assert-time: Minimum wakeup pin assertion time
+  (default 100ms; range 0-2s if RTC clock at 32 kHz)
+
+Example:
+
+rtc@10003000 {
+	compatible = "ingenic,jz4740-rtc";
+	reg = <0x10003000 0x3F>;
+
+	interrupt-parent = <&intc>;
+	interrupts = <32>;
+
+	clocks = <&rtc_clock>;
+	clock-names = "rtc";
+
+	system-power-controller;
+	reset-pin-assert-time = <60>;
+	min-wakeup-pin-assert-time = <100>;
+};
-- 
2.7.0