Commit 4f279f9f authored by Robin Murphy's avatar Robin Murphy Committed by Heiko Stuebner
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arm64: dts: rockchip: Add RK3328 idle state 



Downstream RK3328 DTBs describe a CPU idle state matching that present
on other SoCs like RK3399. This works with upstream Trusted Firmware-A
too, so let's add it here.

Signed-off-by: default avatarRobin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/a8c83e705d387446ea8121516d410e38b2d9c57b.1577640736.git.robin.murphy@arm.com


Signed-off-by: default avatarHeiko Stuebner <heiko@sntech.de>
parent ba790c16

arch/arm64/boot/dts/rockchip/rk3328.dtsi

+17 −0
Original line number Diff line number Diff line
@@ -41,6 +41,7 @@ cpu0: cpu@0 { 
			reg = <0x0 0x0>;

			clocks = <&cru ARMCLK>;

			#cooling-cells = <2>;

			cpu-idle-states = <&CPU_SLEEP>;

			dynamic-power-coefficient = <120>;

			enable-method = "psci";

			next-level-cache = <&l2>;
@@ -53,6 +54,7 @@ cpu1: cpu@1 { 
			reg = <0x0 0x1>;

			clocks = <&cru ARMCLK>;

			#cooling-cells = <2>;

			cpu-idle-states = <&CPU_SLEEP>;

			dynamic-power-coefficient = <120>;

			enable-method = "psci";

			next-level-cache = <&l2>;
@@ -65,6 +67,7 @@ cpu2: cpu@2 { 
			reg = <0x0 0x2>;

			clocks = <&cru ARMCLK>;

			#cooling-cells = <2>;

			cpu-idle-states = <&CPU_SLEEP>;

			dynamic-power-coefficient = <120>;

			enable-method = "psci";

			next-level-cache = <&l2>;
@@ -77,12 +80,26 @@ cpu3: cpu@3 { 
			reg = <0x0 0x3>;

			clocks = <&cru ARMCLK>;

			#cooling-cells = <2>;

			cpu-idle-states = <&CPU_SLEEP>;

			dynamic-power-coefficient = <120>;

			enable-method = "psci";

			next-level-cache = <&l2>;

			operating-points-v2 = <&cpu0_opp_table>;

		};



		idle-states {

			entry-method = "psci";



			CPU_SLEEP: cpu-sleep {

				compatible = "arm,idle-state";

				local-timer-stop;

				arm,psci-suspend-param = <0x0010000>;

				entry-latency-us = <120>;

				exit-latency-us = <250>;

				min-residency-us = <900>;

			};

		};



		l2: l2-cache0 {

			compatible = "cache";

		};