[PATCH v1 5/5] arm64: dts: tegra194: Add CPU idle states
From: Sowjanya Komatineni <skomatineni@nvidia.com>
Date: 2021-03-04 06:10:49
Also in:
linux-devicetree, linux-pm, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
This patch adds CPU core and cluster idle states to Tegra194 device tree Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com> --- arch/arm64/boot/dts/nvidia/tegra194.dtsi | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+)
diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
index 9449156..f9c2731 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi@@ -2155,12 +2155,14 @@ nvidia,bpmp = <&bpmp>; #address-cells = <1>; #size-cells = <0>; + cluster-deepest-power-state = <0x6>; cpu0_0: cpu@0 { compatible = "nvidia,tegra194-carmel"; device_type = "cpu"; reg = <0x000>; enable-method = "psci"; + cpu-idle-states = <&C6>; i-cache-size = <131072>; i-cache-line-size = <64>; i-cache-sets = <512>;
@@ -2175,6 +2177,7 @@ device_type = "cpu"; reg = <0x001>; enable-method = "psci"; + cpu-idle-states = <&C6>; i-cache-size = <131072>; i-cache-line-size = <64>; i-cache-sets = <512>;
@@ -2189,6 +2192,7 @@ device_type = "cpu"; reg = <0x100>; enable-method = "psci"; + cpu-idle-states = <&C6>; i-cache-size = <131072>; i-cache-line-size = <64>; i-cache-sets = <512>;
@@ -2203,6 +2207,7 @@ device_type = "cpu"; reg = <0x101>; enable-method = "psci"; + cpu-idle-states = <&C6>; i-cache-size = <131072>; i-cache-line-size = <64>; i-cache-sets = <512>;
@@ -2217,6 +2222,7 @@ device_type = "cpu"; reg = <0x200>; enable-method = "psci"; + cpu-idle-states = <&C6>; i-cache-size = <131072>; i-cache-line-size = <64>; i-cache-sets = <512>;
@@ -2231,6 +2237,7 @@ device_type = "cpu"; reg = <0x201>; enable-method = "psci"; + cpu-idle-states = <&C6>; i-cache-size = <131072>; i-cache-line-size = <64>; i-cache-sets = <512>;
@@ -2245,6 +2252,7 @@ device_type = "cpu"; reg = <0x300>; enable-method = "psci"; + cpu-idle-states = <&C6>; i-cache-size = <131072>; i-cache-line-size = <64>; i-cache-sets = <512>;
@@ -2259,6 +2267,7 @@ device_type = "cpu"; reg = <0x301>; enable-method = "psci"; + cpu-idle-states = <&C6>; i-cache-size = <131072>; i-cache-line-size = <64>; i-cache-sets = <512>;
@@ -2343,12 +2352,31 @@ cache-line-size = <64>; cache-sets = <4096>; }; + + cpu_core_power_states { + C6: c6 { + compatible = "nvidia,tegra194-cpuidle-core"; + idle-state-name = "CPU powergated, state retained"; + wakeup-latency-us = <2000>; + min-residency-us = <30000>; + arm,psci-suspend-param = <0x6>; + status = "okay"; + }; + }; + + cpu_crossover_thresholds { + thresholds { + crossover_c1_c6 = <30000>; + crossover_cc1_cc6 = <80000>; + }; + }; }; psci { compatible = "arm,psci-1.0"; status = "okay"; method = "smc"; + cpu_suspend = <0xC4000001>; }; sound {
--
2.7.4