[PATCH v6 7/9] arm64: dts: qcom: talos: Enable CDSP cooling

[Gaurav Kohli]

Unlike the CPU, the CDSP does not throttle its speed automatically
when it reaches high temperatures in talos.

Set up CDSP cooling by throttling the cdsp, when it reaches 105°C.

Add polling-delay-passive so the governor periodically evaluates
the zone during passive cooling and steps up cooling levels when
temperature stabilizes below the next trip.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxxxxxxxx>
Signed-off-by: Gaurav Kohli <gaurav.kohli@xxxxxxxxxxxxxxxx>
---
 arch/arm64/boot/dts/qcom/talos.dtsi | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/talos.dtsi b/arch/arm64/boot/dts/qcom/talos.dtsi
index bdfb70ca9740..0fb7cb8e9f64 100644
--- a/arch/arm64/boot/dts/qcom/talos.dtsi
+++ b/arch/arm64/boot/dts/qcom/talos.dtsi
@@ -21,6 +21,7 @@
 #include <dt-bindings/power/qcom,rpmhpd.h>
 #include <dt-bindings/soc/qcom,gpr.h>
 #include <dt-bindings/soc/qcom,rpmh-rsc.h>
+#include <dt-bindings/thermal/qcom,pas.h>
 #include <dt-bindings/thermal/thermal.h>
 
 / {
@@ -3840,6 +3841,8 @@ remoteproc_cdsp: remoteproc@8300000 {
 			qcom,smem-states = <&cdsp_smp2p_out 0>;
 			qcom,smem-state-names = "stop";
 
+			#cooling-cells = <3>;
+
 			status = "disabled";
 
 			glink-edge {
@@ -5497,15 +5500,31 @@ map0 {
 		};
 
 		q6-hvx-thermal {
+			polling-delay-passive = <200>;
+
 			thermal-sensors = <&tsens0 10>;
 
 			trips {
+				q6_hvx_alert0: trip-point0 {
+					temperature = <105000>;
+					hysteresis = <5000>;
+					type = "passive";
+				};
+
 				q6-hvx-critical {
 					temperature = <115000>;
 					hysteresis = <1000>;
 					type = "critical";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&q6_hvx_alert0>;
+					cooling-device = <&remoteproc_cdsp QCOM_TMD_CDSP_SW
+							 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		mdm-core-thermal {

-- 
2.34.1