This patch enables the CPU frequency scaling for exynos3250-artik5 module
and adds the thernal zones with cpu cooling device to prevent the overheat
temperature.
Signed-off-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
---
arch/arm/boot/dts/exynos3250-artik5.dtsi | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/arch/arm/boot/dts/exynos3250-artik5.dtsi b/arch/arm/boot/dts/exynos3250-artik5.dtsi
index 75b291c10cdc..877e4827df83 100644
--- a/arch/arm/boot/dts/exynos3250-artik5.dtsi
+++ b/arch/arm/boot/dts/exynos3250-artik5.dtsi
@@ -31,6 +31,25 @@
compatible = "samsung,secure-firmware";
reg = <0x0205F000 0x1000>;
};
+
+ thermal-zones {
+ cpu_thermal: cpu-thermal {
+ cooling-maps {
+ map0 {
+ /* Corresponds to 500MHz */
+ cooling-device = <&cpu0 5 5>;
+ };
+ map1 {
+ /* Corresponds to 200MHz */
+ cooling-device = <&cpu0 8 8>;
+ };
+ };
+ };
+ };
+};
+
+&cpu0 {
+ cpu0-supply = <&buck2_reg>;
};
&i2c_0 {
@@ -296,6 +315,10 @@
status = "okay";
};
+&tmu {
+ status = "okay";
+};
+
&xusbxti {
clock-frequency = <24000000>;
};
--
1.9.1
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