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authorJosh Cartwright <joshc@codeaurora.org>2014-09-25 17:51:03 -0500
committerWim Van Sebroeck <wim@iguana.be>2014-10-20 20:52:54 +0200
commit7c92c3d58429c38557ffd7e6a69dc97522335454 (patch)
tree334cf40fdb13f55e147d7819488fef7f26f36b53 /Documentation
parent1094ebe9d1e1dde0754ff8cede16159fb20b2f3b (diff)
downloadlinux-7c92c3d58429c38557ffd7e6a69dc97522335454.tar.bz2
watchdog: qcom: document device tree bindings
The Qualcomm Krait Processor Sub-system (KPSS) contains one or more instances of the WDT. Provide documentation on how to describe these in the device tree. Signed-off-by: Josh Cartwright <joshc@codeaurora.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/watchdog/qcom-wdt.txt24
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+Qualcomm Krait Processor Sub-system (KPSS) Watchdog
+---------------------------------------------------
+
+Required properties :
+- compatible : shall contain only one of the following:
+
+ "qcom,kpss-wdt-msm8960"
+ "qcom,kpss-wdt-apq8064"
+ "qcom,kpss-wdt-ipq8064"
+
+- reg : shall contain base register location and length
+- clocks : shall contain the input clock
+
+Optional properties :
+- timeout-sec : shall contain the default watchdog timeout in seconds,
+ if unset, the default timeout is 30 seconds
+
+Example:
+ watchdog@208a038 {
+ compatible = "qcom,kpss-wdt-ipq8064";
+ reg = <0x0208a038 0x40>;
+ clocks = <&sleep_clk>;
+ timeout-sec = <10>;
+ };