Messages in this thread Patch in this message | | | From | Amelie Delaunay <> | Subject | [PATCH 2/8] dt-bindings: document the STM32 RTC bindings | Date | Fri, 2 Dec 2016 15:09:55 +0100 |
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This patch adds documentation of device tree bindings for the STM32 RTC.
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com> --- .../devicetree/bindings/rtc/st,stm32-rtc.txt | 31 ++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 Documentation/devicetree/bindings/rtc/st,stm32-rtc.txt
diff --git a/Documentation/devicetree/bindings/rtc/st,stm32-rtc.txt b/Documentation/devicetree/bindings/rtc/st,stm32-rtc.txt new file mode 100644 index 0000000..4578838 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/st,stm32-rtc.txt @@ -0,0 +1,31 @@ +STM32 Real Time Clock + +Required properties: +- compatible: "st,stm32-rtc". +- reg: address range of rtc register set. +- clocks: reference to the clock entry ck_rtc. +- clock-names: name of the clock used. Should be "ck_rtc". +- interrupt-parent: phandle for the interrupt controller. +- interrupts: rtc alarm interrupt. +- interrupt-names: rtc alarm interrupt name, should be "alarm". +- st,syscfg: phandle for pwrcfg, mandatory to disable/enable backup domain + (RTC registers) write protection. + +Optional properties (to override default ck_rtc parent clock): +- assigned-clocks: reference to the ck_rtc clock entry. +- assigned-clock-parents: phandle of the new parent clock of ck_rtc. + +Example: + + rtc: rtc@40002800 { + compatible = "st,stm32-rtc"; + reg = <0x40002800 0x400>; + clocks = <&rcc 1 CLK_RTC>; + clock-names = "ck_rtc"; + assigned-clocks = <&rcc 1 CLK_RTC>; + assigned-clock-parents = <&rcc 1 CLK_LSE>; + interrupt-parent = <&exti>; + interrupts = <17 1>; + interrupt-names = "alarm"; + st,syscfg = <&pwrcfg>; + }; -- 1.9.1
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