[PATCH] arm64: dts: qcom: qcs404: Add PSCI cpuidle support

[Niklas Cassel]

Add device bindings for CPUs to suspend using PSCI as the enable-method.

Signed-off-by: Niklas Cassel <niklas.cas...@linaro.org>
---
 arch/arm64/boot/dts/qcom/qcs404.dtsi | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs404.dtsi 
b/arch/arm64/boot/dts/qcom/qcs404.dtsi
index ffedf9640af7..f9db9f3ee10c 100644
--- a/arch/arm64/boot/dts/qcom/qcs404.dtsi
+++ b/arch/arm64/boot/dts/qcom/qcs404.dtsi
@@ -31,6 +31,7 @@
                        reg = <0x100>;
                        enable-method = "psci";
                        next-level-cache = <&L2_0>;
+                       cpu-idle-states = <&CPU_PC>;
                };
 
                CPU1: cpu@101 {
@@ -39,6 +40,7 @@
                        reg = <0x101>;
                        enable-method = "psci";
                        next-level-cache = <&L2_0>;
+                       cpu-idle-states = <&CPU_PC>;
                };
 
                CPU2: cpu@102 {
@@ -47,6 +49,7 @@
                        reg = <0x102>;
                        enable-method = "psci";
                        next-level-cache = <&L2_0>;
+                       cpu-idle-states = <&CPU_PC>;
                };
 
                CPU3: cpu@103 {
@@ -55,12 +58,24 @@
                        reg = <0x103>;
                        enable-method = "psci";
                        next-level-cache = <&L2_0>;
+                       cpu-idle-states = <&CPU_PC>;
                };
 
                L2_0: l2-cache {
                        compatible = "cache";
                        cache-level = <2>;
                };
+
+               idle-states {
+                       CPU_PC: pc {
+                               compatible = "arm,idle-state";
+                               arm,psci-suspend-param = <0x40000003>;
+                               entry-latency-us = <125>;
+                               exit-latency-us = <180>;
+                               min-residency-us = <595>;
+                               local-timer-stop;
+                       };
+               };
        };
 
        firmware {
-- 
2.21.0