[PATCH 1/3] arm64: dts: ls1012a: add cpu idle support

From: Ran Wang
Date: Thu Feb 08 2018 - 04:33:27 EST


From: Yuantian Tang <andy.tang@xxxxxxx>

Signed-off-by: Tang Yuantian <andy.tang@xxxxxxx>
---
arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi | 18 ++++++++++++++++++
1 files changed, 18 insertions(+), 0 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi
index 82b272f..15421ef 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi
@@ -70,6 +70,24 @@
reg = <0x0>;
clocks = <&clockgen 1 0>;
#cooling-cells = <2>;
+ cpu-idle-states = <&CPU_PH20>;
+ };
+ };
+
+ idle-states {
+ /*
+ * PSCI node is not added default, U-boot will add missing
+ * parts if it determines to use PSCI.
+ */
+ entry-method = "arm,psci";
+
+ CPU_PH20: cpu-ph20 {
+ compatible = "arm,idle-state";
+ idle-state-name = "PH20";
+ arm,psci-suspend-param = <0x00010000>;
+ entry-latency-us = <1000>;
+ exit-latency-us = <1000>;
+ min-residency-us = <3000>;
};
};

--
1.7.1