linux-kernel - [PATCH v5 3/6] ARM: dts: Add properties to use pwm-fan device as a cooling device in Odroid U3

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Date:	Wed, 25 Feb 2015 16:34:19 +0100
From:	Lukasz Majewski <l.majewski@...sung.com>
To:	Eduardo Valentin <edubezval@...il.com>,
	Kamil Debski <k.debski@...sung.com>,
	Jean Delvare <jdelvare@...e.de>,
	Guenter Roeck <linux@...ck-us.net>,
	Kukjin Kim <kgene@...nel.org>
Cc:	lm-sensors@...sensors.org,
	Linux PM list <linux-pm@...r.kernel.org>,
	"linux-samsung-soc@...r.kernel.org" 
	<linux-samsung-soc@...r.kernel.org>, devicetree@...r.kernel.org,
	Lukasz Majewski <l.majewski@...ess.pl>,
	Kukjin Kim <kgene.kim@...sung.com>,
	linux-kernel@...r.kernel.org,
	Sjoerd Simons <sjoerd.simons@...labora.co.uk>,
	Abhilash Kesavan <kesavan.abhilash@...il.com>,
	Abhilash Kesavan <a.kesavan@...sung.com>,
	Lukasz Majewski <l.majewski@...sung.com>
Subject: [PATCH v5 3/6] ARM: dts: Add properties to use pwm-fan device as a
 cooling device in Odroid U3

With those bindings it is possible to use pwm-fan device available in
Odroid U3 as a cooling device.

Signed-off-by: Lukasz Majewski <l.majewski@...sung.com>
---
Changes for v2:
- Rename cooling-pwm-values property to cooling-levels
Changes for v3:
- Change patch's topic to "ARM dts"
- Reduce maximal cooling-level to 230 from 255
Changes for v4:
- None
Changes for v5:
- None
---
 arch/arm/boot/dts/exynos4412-odroidu3.dts | 33 ++++++++++++++++++++++++++++++-
 1 file changed, 32 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/exynos4412-odroidu3.dts b/arch/arm/boot/dts/exynos4412-odroidu3.dts
index 4c04837..abcfa3c 100644
--- a/arch/arm/boot/dts/exynos4412-odroidu3.dts
+++ b/arch/arm/boot/dts/exynos4412-odroidu3.dts
@@ -32,9 +32,40 @@
 		};
 	};
 
-	pwm-fan {
+	fan0: pwm-fan {
 		compatible = "pwm-fan";
 		pwms = <&pwm 0 10000 0>;
+		cooling-min-state = <0>;
+		cooling-max-state = <3>;
+		#cooling-cells = <2>;
+		cooling-levels = <0 102 170 230>;
+	};
+
+	thermal-zones {
+		cpu_thermal: cpu-thermal {
+			cooling-maps {
+				map0 {
+				     trip = <&cpu_alert1>;
+				     cooling-device = <&cpu0 7 7>;
+				};
+				map1 {
+				     trip = <&cpu_alert2>;
+				     cooling-device = <&cpu0 13 13>;
+				};
+				map2 {
+				     trip = <&cpu_alert0>;
+				     cooling-device = <&fan0 0 1>;
+				};
+				map3 {
+				     trip = <&cpu_alert1>;
+				     cooling-device = <&fan0 1 2>;
+				};
+				map4 {
+				     trip = <&cpu_alert2>;
+				     cooling-device = <&fan0 2 3>;
+				};
+			};
+		};
 	};
 };
 
-- 
2.0.0.rc2

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