This patch adds the documentation for Spreadtrum watchdog driver.
Signed-off-by: Eric Long <eric.long@xxxxxxxxxxxxxx>
Acked-by: Rob Herring <robh@xxxxxxxxxx>
---
Changes since v2:
- Add acked tag from Rob.
Changes since v1:
- No updates.
---
.../devicetree/bindings/watchdog/sprd-wdt.txt | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
create mode 100644 Documentation/devicetree/bindings/watchdog/sprd-wdt.txt
diff --git a/Documentation/devicetree/bindings/watchdog/sprd-wdt.txt b/Documentation/devicetree/bindings/watchdog/sprd-wdt.txt
new file mode 100644
index 0000000..aeaf3e0
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/sprd-wdt.txt
@@ -0,0 +1,19 @@
+Spreadtrum SoCs Watchdog timer
+
+Required properties:
+- compatible : Should be "sprd,sp9860-wdt".
+- reg : Specifies base physical address and size of the registers.
+- interrupts : Exactly one interrupt specifier.
+- timeout-sec : Contain the default watchdog timeout in seconds.
+- clock-names : Contain the input clock names.
+- clocks : Phandles to input clocks.
+
+Example:
+ watchdog: watchdog@40310000 {
+ compatible = "sprd,sp9860-wdt";
+ reg = <0 0x40310000 0 0x1000>;
+ interrupts = <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>;
+ timeout-sec = <12>;
+ clock-names = "enable", "rtc_enable";
+ clocks = <&clk_aon_apb_gates1 8>, <&clk_aon_apb_rtc_gates 9>;
+ };
--
1.9.1
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