[PATCH v4 2/3] arm64: dts: qcom: sc7180: Add gpu cooling support

From: Akhil P Oommen
Date: Thu Oct 29 2020 - 04:10:44 EST


Add cooling-cells property and the cooling maps for the gpu tzones
to support GPU cooling.

Signed-off-by: Akhil P Oommen <akhilpo@xxxxxxxxxxxxxx>
Reviewed-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/sc7180.dtsi | 30 +++++++++++++++++++++++-------
1 file changed, 23 insertions(+), 7 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
index d46b383..8e2000c 100644
--- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
@@ -2,7 +2,7 @@
/*
* SC7180 SoC device tree source
*
- * Copyright (c) 2019, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2019-20, The Linux Foundation. All rights reserved.
*/

#include <dt-bindings/clock/qcom,dispcc-sc7180.h>
@@ -1886,6 +1886,8 @@
operating-points-v2 = <&gpu_opp_table>;
qcom,gmu = <&gmu>;

+ #cooling-cells = <2>;
+
interconnects = <&gem_noc MASTER_GFX3D &mc_virt SLAVE_EBI1>;
interconnect-names = "gfx-mem";

@@ -3825,16 +3827,16 @@
};

gpuss0-thermal {
- polling-delay-passive = <0>;
+ polling-delay-passive = <100>;
polling-delay = <0>;

thermal-sensors = <&tsens0 13>;

trips {
gpuss0_alert0: trip-point0 {
- temperature = <90000>;
+ temperature = <95000>;
hysteresis = <2000>;
- type = "hot";
+ type = "passive";
};

gpuss0_crit: gpuss0_crit {
@@ -3843,19 +3845,26 @@
type = "critical";
};
};
+
+ cooling-maps {
+ map0 {
+ trip = <&gpuss0_alert0>;
+ cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ };
+ };
};

gpuss1-thermal {
- polling-delay-passive = <0>;
+ polling-delay-passive = <100>;
polling-delay = <0>;

thermal-sensors = <&tsens0 14>;

trips {
gpuss1_alert0: trip-point0 {
- temperature = <90000>;
+ temperature = <95000>;
hysteresis = <2000>;
- type = "hot";
+ type = "passive";
};

gpuss1_crit: gpuss1_crit {
@@ -3864,6 +3873,13 @@
type = "critical";
};
};
+
+ cooling-maps {
+ map0 {
+ trip = <&gpuss1_alert0>;
+ cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ };
+ };
};

aoss1-thermal {
--
2.7.4