ARM: dts: exynos: Add CPU cooling in Exynos4412 Origen

Add missing cooling devices for CPU thermal zones in Exynos4412 Origen
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/20200830135200.24304-28-krzk@kernel.org

diff --git a/arch/arm/boot/dts/exynos4412-origen.dts b/arch/arm/boot/dts/exynos4412-origen.dts
index 4c52ca6dbe57a29eae5efb9eb1e0d39a239f0804..c2e793b69e7d9c5d590c044b3571419de53bf67f 100644 (file)
--- a/arch/arm/boot/dts/exynos4412-origen.dts
+++ b/arch/arm/boot/dts/exynos4412-origen.dts
@@ -75,6 +75,21 @@
        cpu0-supply = <&buck2_reg>;
 };
 
+&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>;
+               };
+       };
+};
+
 &exynos_usbphy {
        status = "okay";
 };