linux/Documentation/devicetree/bindings/watchdog/qcom-wdt.txt
Matthew McClintock f0d9d0f4b4 watchdog: qcom: add option for standalone watchdog not in timer block
Commit 0dfd582e02 ("watchdog: qcom: use timer devicetree
binding") moved to use the watchdog as a subset timer
register block. Some devices have the watchdog completely
standalone with slightly different register offsets as
well so let's account for the differences here.

The existing "kpss-standalone" compatible string doesn't
make it entirely clear exactly what the device is so
rename to "kpss-wdt" to reflect watchdog timer
functionality. Also update ipq4019 DTS with an SoC
specific compatible.

Signed-off-by: Matthew McClintock <mmcclint@codeaurora.org>
Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2016-07-17 21:03:08 +02:00

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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"
"qcom,kpss-wdt-ipq4019"
"qcom,kpss-timer"
"qcom,scss-timer"
"qcom,kpss-wdt"
- 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>;
};