ARM: dts: exynos: Add CPU cooling in SMDKv310

Add missing cooling devices for CPU thermal zones in Exynos4210 SMDKv310
board.  This allows to scale down CPU frequency (and voltage) in case of
thermal pressure.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200830135200.24304-20-krzk@kernel.org

diff --git a/arch/arm/boot/dts/exynos4210-smdkv310.dts b/arch/arm/boot/dts/exynos4210-smdkv310.dts
index 0b0e86737b26a5e82aa72ead379dcf089bedf645..c5609afa6101cd37e621ffd538f2561ae61e74bd 100644 (file)
--- a/arch/arm/boot/dts/exynos4210-smdkv310.dts
+++ b/arch/arm/boot/dts/exynos4210-smdkv310.dts
@@ -50,6 +50,19 @@
        };
 };
 
+&cpu_thermal {
+       cooling-maps {
+               map0 {
+                       /* Corresponds to 800MHz */
+                       cooling-device = <&cpu0 2 2>;
+               };
+               map1 {
+                       /* Corresponds to 200MHz */
+                       cooling-device = <&cpu0 4 4>;
+               };
+       };
+};
+
 &i2c_0 {
        #address-cells = <1>;
        #size-cells = <0>;