Re: [v3,2/3] arm64: dts: qcom: sc7180: Add gpu cooling support

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On 10/29/2020 6:09 AM, mka@xxxxxxxxxxxx wrote:
Hi Akhil,

On Wed, Oct 28, 2020 at 07:09:53PM +0530, Akhil P Oommen wrote:
Add cooling-cells property and the cooling maps for the gpu tzones
to support GPU cooling.

Signed-off-by: Akhil P Oommen <akhilpo@xxxxxxxxxxxxxx>
---
  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..a7ea029 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 = <&gpuss0_alert0>;

Copy & paste error, this should be 'gpuss1_alert0'.
aah! you are correct.

--Akhil

+					cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
  		};
aoss1-thermal {


Other than the C&P error:

Reviewed-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
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