diff mbox series

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

Message ID 20200830135200.24304-29-krzk@kernel.org
State New
Headers show
Series None | expand

Commit Message

Krzysztof Kozlowski Aug. 30, 2020, 1:51 p.m. UTC 
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 mbox series

Patch

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>;