linux-kernel - [PATCH v1] ARM: tegra: add nvidia,wdt-timer-id optional property

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Message-ID: <1391204811-6293-1-git-send-email-achew@nvidia.com>
Date:	Fri, 31 Jan 2014 13:46:51 -0800
From:	Andrew Chew <achew@...dia.com>
To:	<robh+dt@...nel.org>, <pawel.moll@....com>, <mark.rutland@....com>,
	<ijc+devicetree@...lion.org.uk>, <galak@...eaurora.org>,
	<rob@...dley.net>, <swarren@...dotorg.org>,
	<thierry.reding@...il.com>, <abrestic@...omium.org>,
	<dgreid@...omium.org>, <katierh@...omium.org>
CC:	<devicetree@...r.kernel.org>, <linux-doc@...r.kernel.org>,
	<linux-tegra@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	Andrew Chew <achew@...dia.com>
Subject: [PATCH v1] ARM: tegra: add nvidia,wdt-timer-id optional property

This optional property can be used to specify which timers are to be used
for hardware watchdog timeouts (via a tegra wdt driver).

Signed-off-by: Andrew Chew <achew@...dia.com>
---
 Documentation/devicetree/bindings/timer/nvidia,tegra30-timer.txt | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/timer/nvidia,tegra30-timer.txt b/Documentation/devicetree/bindings/timer/nvidia,tegra30-timer.txt
index b5082a1..e87fa70 100644
--- a/Documentation/devicetree/bindings/timer/nvidia,tegra30-timer.txt
+++ b/Documentation/devicetree/bindings/timer/nvidia,tegra30-timer.txt
@@ -13,6 +13,13 @@ Required properties:
 - clocks : Must contain one entry, for the module clock.
   See ../clocks/clock-bindings.txt for details.
 
+Optional properties:
+
+- nvidia,wdt-timer-id: A list of timer IDs to be used for watchdogs.
+    Watchdog 0 will be assigned to the first timer listed, watchdog 1 will
+    be assigned to the second timer listed, etc. up to the number of watchdogs
+    available.
+
 timer {
 	compatible = "nvidia,tegra30-timer", "nvidia,tegra20-timer";
 	reg = <0x60005000 0x400>;
@@ -23,4 +30,5 @@ timer {
 		      0 121 0x04
 		      0 122 0x04>;
 	clocks = <&tegra_car 214>;
+	nvidia,wdt-timer-id = <7 8>;
 };
-- 
1.8.1.5

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