linux-kernel - [PATCH 4/7] arm: dts: add cooling properties on dra7 cpu node

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Date:	Tue, 1 Oct 2013 14:32:21 -0400
From:	Eduardo Valentin <eduardo.valentin@...com>
To:	<swarren@...dotorg.org>, <pawel.moll@....com>,
	<mark.rutland@....com>, <ian.campbell@...rix.com>,
	<rob.herring@...xeda.com>, <linux@...ck-us.net>,
	<rui.zhang@...el.com>, <grant.likely@...aro.org>
CC:	<linux-pm@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<lm-sensors@...sensors.org>, <linux-kernel@...r.kernel.org>,
	Eduardo Valentin <eduardo.valentin@...com>
Subject: [PATCH 4/7] arm: dts: add cooling properties on dra7 cpu node

DRA7 devices can reach high temperatures and thus
needs to have cpufreq-cooling on systems running on it.

This patch adds the required cooling device properties
so that cpufreq-cpu0 driver loads the cooling device.

Signed-off-by: Eduardo Valentin <eduardo.valentin@...com>
---
 arch/arm/boot/dts/dra7.dtsi | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index 4e9b159..1104d8a 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -25,8 +25,12 @@
 	};
 
 	cpus {
-		cpu@0 {
+		cpu0: cpu@0 {
 			compatible = "arm,cortex-a15";
+
+			/* cooling properties */
+			#cooling-cells = <2>; /* min and max */
+
 			timer {
 				compatible = "arm,armv7-timer";
 				/*
-- 
1.8.2.1.342.gfa7285d

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