linux-kernel - [PATCHv2 4/7] arm: dts: add cooling properties on dra7 cpu node

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Date:	Mon, 6 Jan 2014 08:36:48 -0400
From:	Eduardo Valentin <eduardo.valentin@...com>
To:	<rui.zhang@...el.com>
CC:	<linux-pm@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<lm-sensors@...sensors.org>, <linux-kernel@...r.kernel.org>,
	Eduardo Valentin <eduardo.valentin@...com>,
	Benoît Cousson <bcousson@...libre.com>,
	Rob Herring <rob.herring@...xeda.com>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Stephen Warren <swarren@...dotorg.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Russell King <linux@....linux.org.uk>,
	<linux-arm-kernel@...ts.infradead.org>
Subject: [PATCHv2 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.

Cc: Benoît Cousson <bcousson@...libre.com>
Cc: Zhang Rui <rui.zhang@...el.com>
Cc: Rob Herring <rob.herring@...xeda.com>
Cc: Pawel Moll <pawel.moll@....com>
Cc: Mark Rutland <mark.rutland@....com>
Cc: Stephen Warren <swarren@...dotorg.org>
Cc: Ian Campbell <ijc+devicetree@...lion.org.uk>
Cc: Russell King <linux@....linux.org.uk>
Cc: devicetree@...r.kernel.org
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Eduardo Valentin <eduardo.valentin@...com>
---
 arch/arm/boot/dts/dra7.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index 8f21157..139472c 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -47,6 +47,11 @@
 				1000000	1060000
 				1176000	1160000
 				>;
+
+			/* cooling properties */
+			#cooling-cells = <2>; /* min and max */
+			#cooling-min-level = <0>;
+			#cooling-max-level = <1>;
 		};
 		cpu@1 {
 			device_type = "cpu";
-- 
1.8.2.1.342.gfa7285d

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