Commit 06a928fb authored by Biju Das's avatar Biju Das Committed by Simon Horman
Browse files

arm64: dts: renesas: r8a774a1: Create thermal zone to support IPA 



Setup a thermal zone driven by SoC temperature sensor. Create passive trip
points and bind them to CPUFreq cooling device that supports power
extension.

Based on work by Dien Pham <dien.pham.ry@renesas.com> for r8a7796 SoC.

Signed-off-by: default avatarBiju Das <biju.das@bp.renesas.com>
Signed-off-by: default avatarSimon Horman <horms+renesas@verge.net.au>
parent 5f524949

arch/arm64/boot/dts/renesas/r8a774a1.dtsi

+24 −1
Original line number Diff line number Diff line
@@ -138,6 +138,7 @@ 
			clocks = <&cpg CPG_CORE R8A774A1_CLK_Z>;

			operating-points-v2 = <&cluster0_opp>;

			capacity-dmips-mhz = <1024>;

			#cooling-cells = <2>;

		};



		a57_1: cpu@1 {
@@ -150,6 +151,7 @@ 
			clocks = <&cpg CPG_CORE R8A774A1_CLK_Z>;

			operating-points-v2 = <&cluster0_opp>;

			capacity-dmips-mhz = <1024>;

			#cooling-cells = <2>;

		};



		a53_0: cpu@100 {
@@ -159,6 +161,7 @@ 
			power-domains = <&sysc R8A774A1_PD_CA53_CPU0>;

			next-level-cache = <&L2_CA53>;

			enable-method = "psci";

			#cooling-cells = <2>;

			clocks = <&cpg CPG_CORE R8A774A1_CLK_Z2>;

			operating-points-v2 = <&cluster1_opp>;

			capacity-dmips-mhz = <560>;
@@ -2437,6 +2440,7 @@ 
			polling-delay-passive = <250>;

			polling-delay = <1000>;

			thermal-sensors = <&tsc 0>;

			sustainable-power = <3874>;



			trips {

				sensor1_crit: sensor1-crit {
@@ -2451,6 +2455,7 @@ 
			polling-delay-passive = <250>;

			polling-delay = <1000>;

			thermal-sensors = <&tsc 1>;

			sustainable-power = <3874>;



			trips {

				sensor2_crit: sensor2-crit {
@@ -2459,21 +2464,39 @@ 
					type = "critical";

				};

			};



		};



		sensor_thermal3: sensor-thermal3 {

			polling-delay-passive = <250>;

			polling-delay = <1000>;

			thermal-sensors = <&tsc 2>;

			sustainable-power = <3874>;



			trips {

				target: trip-point1 {

					temperature = <100000>;

					hysteresis = <1000>;

					type = "passive";

				};



				sensor3_crit: sensor3-crit {

					temperature = <120000>;

					hysteresis = <1000>;

					type = "critical";

				};

			};

			cooling-maps {

				map0 {

					trip = <&target>;

					cooling-device = <&a57_0 0 2>;

					contribution = <1024>;

				};

				map1 {

					trip = <&target>;

					cooling-device = <&a53_0 0 2>;

					contribution = <1024>;

				};

			};

		};

	};

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