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authorBaolin Wang <baolin.wang@spreadtrum.com>2017-11-09 06:34:16 +0300
committerAlexandre Belloni <alexandre.belloni@free-electrons.com>2017-11-15 19:00:03 +0300
commit8f6596f4c94a155b93a809989314e5e8c01d0618 (patch)
tree8de831c46a8b10bb680dacf433f5627731e83144 /Documentation/devicetree/bindings/rtc
parenteaa1dc7ba18db14842fbee9c57e71d28ae1c407d (diff)
downloadlinux-8f6596f4c94a155b93a809989314e5e8c01d0618.tar.xz
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@spreadtrum.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Diffstat (limited to 'Documentation/devicetree/bindings/rtc')
-rw-r--r--Documentation/devicetree/bindings/rtc/sprd,sc27xx-rtc.txt27
1 files changed, 27 insertions, 0 deletions
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 000000000000..7c170da0d4b7
--- /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>;
+ };
+ };