Thread (50 messages) 50 messages, 4 authors, 2020-09-02
STALE2100d LANDED

[PATCH 20/33] ARM: dts: exynos: Add CPU cooling in SMDKv310

From: Krzysztof Kozlowski <krzk@kernel.org>
Date: 2020-08-30 14:10:41
Also in: linux-devicetree, linux-samsung-soc, lkml
Subsystem: the rest · Maintainer: Linus Torvalds

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>
---
 arch/arm/boot/dts/exynos4210-smdkv310.dts | 13 +++++++++++++
 1 file changed, 13 insertions(+)
diff --git a/arch/arm/boot/dts/exynos4210-smdkv310.dts b/arch/arm/boot/dts/exynos4210-smdkv310.dts
index 0b0e86737b26..c5609afa6101 100644
--- 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>;
-- 
2.17.1


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