[PATCH 4/6] arm64: dts: tegra210: add CPU idle states properties
From: Joseph Lo <hidden>
Date: 2019-01-07 03:29:22
Also in:
linux-tegra
Subsystem:
the rest · Maintainer:
Linus Torvalds
Add idle states properties for generic ARM CPU idle driver. This includes a C7 state which is the power down state of CPU cores. Signed-off-by: Joseph Lo <redacted> --- Note: This dt patch depends on the DT changes in below series. http://patchwork.ozlabs.org/project/linux-tegra/list/?series=84380 --- arch/arm64/boot/dts/nvidia/tegra210.dtsi | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/arch/arm64/boot/dts/nvidia/tegra210.dtsi b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
index 143bd103c923..b583d3065946 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210.dtsi@@ -1308,24 +1308,41 @@ <&dfll>; clock-names = "cpu_g", "pll_x", "pll_p", "dfll"; clock-latency = <300000>; + cpu-idle-states = <&C7>; }; cpu@1 { device_type = "cpu"; compatible = "arm,cortex-a57"; reg = <1>; + cpu-idle-states = <&C7>; }; cpu@2 { device_type = "cpu"; compatible = "arm,cortex-a57"; reg = <2>; + cpu-idle-states = <&C7>; }; cpu@3 { device_type = "cpu"; compatible = "arm,cortex-a57"; reg = <3>; + cpu-idle-states = <&C7>; + }; + + idle-states { + entry-method = "psci"; + + C7: c7 { + compatible = "arm,idle-state"; + arm,psci-suspend-param = <0x40000007>; + wakeup-latency-us = <130>; + min-residency-us = <1000>; + idle-state-name = "c7-cpu-powergated"; + status = "disabled"; + }; }; };
--
2.20.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel