[PATCH 21/33] ARM: dts: exynos: Add CPU cooling in Universal C210

Krzysztof Kozlowski
2020-08-30T14:10:34Z

Add missing cooling devices for CPU thermal zones in Exynos4210
Universal C310 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-universal_c210.dts | 13 +++++++++++++
1 file changed, 13 insertions(+)

diff --git a/arch/arm/boot/dts/exynos4210-universal_c210.dts b/arch/arm/boot/dts/exynos4210-universal_c210.dts
index 279f0f8f86ed..546d84fe4599 100644
--- a/arch/arm/boot/dts/exynos4210-universal_c210.dts
+++ b/arch/arm/boot/dts/exynos4210-universal_c210.dts
@@ -196,6 +196,19 @@
cpu0-supply = <&vdd_arm_reg>;
};

+&cpu_thermal {
+ cooling-maps {
+ map0 {
+ /* Corresponds to 800MHz */
+ cooling-device = <&cpu0 2 2>;
+ };
+ map1 {
+ /* Corresponds to 200MHz */
+ cooling-device = <&cpu0 4 4>;
+ };
+ };
+};
+
&ehci {
status = "okay";
phys = <&exynos_usbphy 1>;
--
2.17.1