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authorYuantian Tang <andy.tang@nxp.com>2018-02-08 10:54:34 +0300
committerShawn Guo <shawnguo@kernel.org>2018-02-24 10:09:51 +0300
commit9b4eefcb70ca79d7dbd3a2a2d29ef9682762eeeb (patch)
tree5a46766359b8f1545ce3958ba59544cc0e9fbede /arch/arm64/boot/dts/freescale
parent8acb019209a646db73934c52a57d4021e533f679 (diff)
downloadlinux-9b4eefcb70ca79d7dbd3a2a2d29ef9682762eeeb.tar.xz
arm64: dts: ls1012a: add cpu idle support
Signed-off-by: Tang Yuantian <andy.tang@nxp.com> Signed-off-by: Ran Wang <ran.wang_1@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'arch/arm64/boot/dts/freescale')
-rw-r--r--arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi18
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 4e98d057253b..d79d8fea1bb3 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>;
};
};