ARM: dts: exynos: Add CPU cooling in Tiny4412

Add missing cooling devices for CPU thermal zones in Exynos4412 Tiny4412
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/20200830135200.24304-30-krzk@kernel.org

diff --git a/arch/arm/boot/dts/exynos4412-tiny4412.dts b/arch/arm/boot/dts/exynos4412-tiny4412.dts
index 3a91de8a80826688588d6fa3a5a10d9892cb08f8..7512c86e634e1a76fec2c6256f1cb8d4ea6d56fa 100644 (file)
--- a/arch/arm/boot/dts/exynos4412-tiny4412.dts
+++ b/arch/arm/boot/dts/exynos4412-tiny4412.dts
@@ -78,6 +78,21 @@
        };
 };
 
+&cpu_thermal {
+       cooling-maps {
+               cooling_map0: map0 {
+                       /* Corresponds to 800MHz at freq_table */
+                       cooling-device = <&cpu0 7 7>, <&cpu1 7 7>,
+                                        <&cpu2 7 7>, <&cpu3 7 7>;
+               };
+               cooling_map1: map1 {
+                       /* Corresponds to 200MHz at freq_table */
+                       cooling-device = <&cpu0 13 13>, <&cpu1 13 13>,
+                                        <&cpu2 13 13>, <&cpu3 13 13>;
+               };
+       };
+};
+
 &fimd {
        pinctrl-0 = <&lcd_clk>, <&lcd_data24>;
        pinctrl-names = "default";