[PATCH] arm64: dts: rockchip: Add RK3328 idle state
From: Robin Murphy <robin.murphy@arm.com>
Date: 2019-12-29 20:16:29
Also in:
linux-rockchip
Subsystem:
the rest · Maintainer:
Linus Torvalds
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: Robin Murphy <robin.murphy@arm.com> --- arch/arm64/boot/dts/rockchip/rk3328.dtsi | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
index 7df7daa188df..d71187cdd430 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi@@ -41,6 +41,7 @@ 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 @@ 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 @@ 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 @@ 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"; };
--
2.17.1
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