[PATCH v4 5/8] ARM: dts: Add properties to use pwm-fan device as a cooling device in Odroid U3

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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@xxxxxxxxxxx>
---
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
---
 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 60bd1e4..3e5df3e 100644
--- a/arch/arm/boot/dts/exynos4412-odroidu3.dts
+++ b/arch/arm/boot/dts/exynos4412-odroidu3.dts
@@ -32,11 +32,42 @@
 		};
 	};
 
-	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>;
 		status = "okay";
 	};
+
+	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>;
+				};
+			};
+		};
+	};
 };
 
 &pwm {
-- 
2.0.0.rc2

--
To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux SoC Development]     [Linux Rockchip Development]     [Linux USB Development]     [Video for Linux]     [Linux Audio Users]     [Linux SCSI]     [Yosemite News]

  Powered by Linux