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 <[email protected]> --- 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
