From: Niklas Cassel <niklas.cassel@linaro.org>
To: Andy Gross <agross@kernel.org>,
David Brown <david.brown@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>
Cc: amit.kucheria@linaro.org, jorge.ramirez-ortiz@linaro.org,
lina.iyer@linaro.org, ulf.hansson@linaro.org,
bjorn.andersson@linaro.org,
Niklas Cassel <niklas.cassel@linaro.org>,
linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] arm64: dts: qcom: qcs404: Add PSCI cpuidle support
Date: Mon, 6 May 2019 21:31:15 +0200 [thread overview]
Message-ID: <20190506193115.20909-1-niklas.cassel@linaro.org> (raw)
Add device bindings for CPUs to suspend using PSCI as the enable-method.
Signed-off-by: Niklas Cassel <niklas.cassel@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
next reply other threads:[~2019-05-06 19:31 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-06 19:31 Niklas Cassel [this message]
2019-05-07 5:35 ` [PATCH] arm64: dts: qcom: qcs404: Add PSCI cpuidle support Vinod Koul
2019-05-07 6:55 ` Bjorn Andersson
2019-05-07 7:06 ` Vinod Koul
2019-05-10 11:31 ` Amit Kucheria
2019-05-07 21:18 ` Amit Kucheria
2019-05-08 14:56 ` Niklas Cassel
2019-05-09 17:49 ` Amit Kucheria
2019-05-10 9:24 ` Sudeep Holla
2019-05-10 18:28 ` Amit Kucheria
2019-05-13 9:49 ` Sudeep Holla
2019-05-15 9:56 ` Amit Kucheria
2019-05-15 10:30 ` Sudeep Holla
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