From 88d88c5a4ad6ee2bd07a2a820925ad68dddc21cd Mon Sep 17 00:00:00 2001 From: Paul Cercueil Date: Mon, 31 Oct 2016 21:39:46 +0100 Subject: Documentation: dt: Add binding info for jz4740-rtc driver This commit adds documentation for the device-tree bindings of the jz4740-rtc driver, which supports the RTC unit present in the JZ4740 and JZ4780 SoCs from Ingenic. Signed-off-by: Paul Cercueil Acked-by: Maarten ter Huurne Acked-by: Rob Herring Signed-off-by: Alexandre Belloni --- .../devicetree/bindings/rtc/ingenic,jz4740-rtc.txt | 37 ++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 Documentation/devicetree/bindings/rtc/ingenic,jz4740-rtc.txt (limited to 'Documentation/devicetree/bindings/rtc') 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 000000000000..41c7ae18fd7b --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/ingenic,jz4740-rtc.txt @@ -0,0 +1,37 @@ +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 +- 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-ms: Reset pin low-level assertion + time after wakeup (default 60ms; range 0-125ms if RTC clock + at 32 kHz) +- min-wakeup-pin-assert-time-ms: 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 0x40>; + + interrupt-parent = <&intc>; + interrupts = <32>; + + clocks = <&rtc_clock>; + clock-names = "rtc"; + + system-power-controller; + reset-pin-assert-time-ms = <60>; + min-wakeup-pin-assert-time-ms = <100>; +}; -- cgit