[PATCH 29/33] ARM: dts: exynos: Add CPU cooling in SMDK4412

Krzysztof Kozlowski
2020-08-30T14:07:11Z

Add missing cooling devices for CPU thermal zones in Exynos4412 SMDK4412
board. This allows to scale down CPU frequency (and voltage) in case of
thermal pressure.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
---
arch/arm/boot/dts/exynos4412-smdk4412.dts | 15 +++++++++++++++
1 file changed, 15 insertions(+)

diff --git a/arch/arm/boot/dts/exynos4412-smdk4412.dts b/arch/arm/boot/dts/exynos4412-smdk4412.dts
index e70fb6e601f0..3667fa048e0f 100644
--- a/arch/arm/boot/dts/exynos4412-smdk4412.dts
+++ b/arch/arm/boot/dts/exynos4412-smdk4412.dts
@@ -40,6 +40,21 @@
};
};

+&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>;
+ };
+ };
+};
+
&keypad {
samsung,keypad-num-rows = <3>;
samsung,keypad-num-columns = <8>;
--
2.17.1