From: joshc@codeaurora.org (Josh Cartwright)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 2/3] watchdog: qcom: document device tree bindings
Date: Tue, 23 Sep 2014 18:04:37 -0500 [thread overview]
Message-ID: <337231c0fc8b16b4f37e1e3b85cb0246f357a64d.1411513109.git.joshc@codeaurora.org> (raw)
In-Reply-To: <cover.1411513109.git.joshc@codeaurora.org>
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>
---
.../devicetree/bindings/watchdog/qcom-wdt.txt | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
create mode 100644 Documentation/devicetree/bindings/watchdog/qcom-wdt.txt
diff --git a/Documentation/devicetree/bindings/watchdog/qcom-wdt.txt b/Documentation/devicetree/bindings/watchdog/qcom-wdt.txt
new file mode 100644
index 0000000..6a1d758
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/qcom-wdt.txt
@@ -0,0 +1,22 @@
+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 phandle
+- timeout-sec : shall contain the default watchdog timeout in seconds,
+ if unset, the default timeout is 30 seconds
+
+Example:
+ watchdog at 208a038 {
+ compatible = "qcom,kpss-wdt-ipq8064";
+ reg = <0x0208a038 0x40>;
+ clocks = <&sleep_clk>;
+ timeout-sec = <10>;
+ };
--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
hosted by The Linux Foundation
next prev parent reply other threads:[~2014-09-23 23:04 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-23 23:04 [PATCH v2 0/3] watchdog: add support for QCOM WDT Josh Cartwright
2014-09-23 23:04 ` [PATCH v2 1/3] watchdog: qcom: add support for KPSS WDT Josh Cartwright
2014-09-24 15:58 ` Guenter Roeck
2014-09-24 18:30 ` Josh Cartwright
2014-09-23 23:04 ` Josh Cartwright [this message]
2014-09-24 10:44 ` [PATCH v2 2/3] watchdog: qcom: document device tree bindings Arnd Bergmann
2014-09-24 10:56 ` Mark Rutland
2014-09-23 23:04 ` [PATCH v2 3/3] watchdog: qcom: register a restart notifier Josh Cartwright
2014-09-24 17:05 ` Guenter Roeck
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