From: Lina Iyer <lina.iyer@linaro.org>
To: ulf.hansson@linaro.org, khilman@kernel.org, rjw@rjwysocki.net,
linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Cc: geert@linux-m68k.org, k.kozlowski@samsung.com,
msivasub@codeaurora.org, agross@codeaurora.org,
sboyd@codeaurora.org, linux-arm-msm@vger.kernel.org,
lorenzo.pieralisi@arm.com, ahaslam@baylibre.com,
mtitinger@baylibre.com, Lina Iyer <lina.iyer@linaro.org>,
devicetree@vger.kernel.org
Subject: [RFC v2 12/12] ARM64: dts: Define CPU power domain for MSM8916
Date: Fri, 12 Feb 2016 13:50:38 -0700 [thread overview]
Message-ID: <1455310238-8963-13-git-send-email-lina.iyer@linaro.org> (raw)
In-Reply-To: <1455310238-8963-1-git-send-email-lina.iyer@linaro.org>
Define power domain and the power states for the domain as defined by
the PSCI firmware. The 8916 firmware supports OS initiated method of
powering off the CPU clusters.
Cc: <devicetree@vger.kernel.org>
Signed-off-by: Lina Iyer <lina.iyer@linaro.org>
---
Changes since RFC v1 -
- no cpu-map topology node
arch/arm64/boot/dts/qcom/msm8916.dtsi | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi
index b7839a8..62dade8 100644
--- a/arch/arm64/boot/dts/qcom/msm8916.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi
@@ -63,6 +63,7 @@
reg = <0x0>;
enable-method = "psci";
cpu-idle-states = <&CPU_SPC>;
+ power-domains = <&CPU_PD>;
};
CPU1: cpu@1 {
@@ -71,6 +72,7 @@
reg = <0x1>;
enable-method = "psci";
cpu-idle-states = <&CPU_SPC>;
+ power-domains = <&CPU_PD>;
};
CPU2: cpu@2 {
@@ -79,6 +81,7 @@
reg = <0x2>;
enable-method = "psci";
cpu-idle-states = <&CPU_SPC>;
+ power-domains = <&CPU_PD>;
};
CPU3: cpu@3 {
@@ -87,6 +90,7 @@
reg = <0x3>;
enable-method = "psci";
cpu-idle-states = <&CPU_SPC>;
+ power-domains = <&CPU_PD>;
};
idle-states {
@@ -101,6 +105,27 @@
};
};
+ CPU_PD: cpu-pd@0 {
+ #power-domain-cells = <0>;
+ power-states = <&CLUSTER_RET>, <&CLUSTER_PWR_DWN>;
+ };
+
+ pd-power-states {
+ CLUSTER_RET: power-state@1 {
+ state-param = <0x1000010>;
+ entry-latency-us = <500>;
+ exit-latency-us = <500>;
+ residency-us = <2000>;
+ };
+
+ CLUSTER_PWR_DWN: power-state@2 {
+ state-param = <0x1000030>;
+ entry-latency-us = <2000>;
+ exit-latency-us = <2000>;
+ residency-us = <6000>;
+ };
+ };
+
psci {
compatible = "arm,psci-1.0";
method = "smc";
--
2.1.4
WARNING: multiple messages have this Message-ID (diff)
From: lina.iyer@linaro.org (Lina Iyer)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC v2 12/12] ARM64: dts: Define CPU power domain for MSM8916
Date: Fri, 12 Feb 2016 13:50:38 -0700 [thread overview]
Message-ID: <1455310238-8963-13-git-send-email-lina.iyer@linaro.org> (raw)
In-Reply-To: <1455310238-8963-1-git-send-email-lina.iyer@linaro.org>
Define power domain and the power states for the domain as defined by
the PSCI firmware. The 8916 firmware supports OS initiated method of
powering off the CPU clusters.
Cc: <devicetree@vger.kernel.org>
Signed-off-by: Lina Iyer <lina.iyer@linaro.org>
---
Changes since RFC v1 -
- no cpu-map topology node
arch/arm64/boot/dts/qcom/msm8916.dtsi | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi
index b7839a8..62dade8 100644
--- a/arch/arm64/boot/dts/qcom/msm8916.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi
@@ -63,6 +63,7 @@
reg = <0x0>;
enable-method = "psci";
cpu-idle-states = <&CPU_SPC>;
+ power-domains = <&CPU_PD>;
};
CPU1: cpu at 1 {
@@ -71,6 +72,7 @@
reg = <0x1>;
enable-method = "psci";
cpu-idle-states = <&CPU_SPC>;
+ power-domains = <&CPU_PD>;
};
CPU2: cpu at 2 {
@@ -79,6 +81,7 @@
reg = <0x2>;
enable-method = "psci";
cpu-idle-states = <&CPU_SPC>;
+ power-domains = <&CPU_PD>;
};
CPU3: cpu at 3 {
@@ -87,6 +90,7 @@
reg = <0x3>;
enable-method = "psci";
cpu-idle-states = <&CPU_SPC>;
+ power-domains = <&CPU_PD>;
};
idle-states {
@@ -101,6 +105,27 @@
};
};
+ CPU_PD: cpu-pd at 0 {
+ #power-domain-cells = <0>;
+ power-states = <&CLUSTER_RET>, <&CLUSTER_PWR_DWN>;
+ };
+
+ pd-power-states {
+ CLUSTER_RET: power-state at 1 {
+ state-param = <0x1000010>;
+ entry-latency-us = <500>;
+ exit-latency-us = <500>;
+ residency-us = <2000>;
+ };
+
+ CLUSTER_PWR_DWN: power-state at 2 {
+ state-param = <0x1000030>;
+ entry-latency-us = <2000>;
+ exit-latency-us = <2000>;
+ residency-us = <6000>;
+ };
+ };
+
psci {
compatible = "arm,psci-1.0";
method = "smc";
--
2.1.4
next prev parent reply other threads:[~2016-02-12 20:50 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-12 20:50 [RFC v2 00/12] PM: SoC idle support using PM domains Lina Iyer
2016-02-12 20:50 ` Lina Iyer
2016-02-12 20:50 ` [RFC v2 01/12] PM / Domains: Abstract genpd locking Lina Iyer
2016-02-12 20:50 ` Lina Iyer
2016-02-26 18:08 ` Stephen Boyd
2016-02-26 18:08 ` Stephen Boyd
2016-03-01 16:55 ` Lina Iyer
2016-03-01 16:55 ` Lina Iyer
2016-02-12 20:50 ` [RFC v2 02/12] PM / Domains: Support IRQ safe PM domains Lina Iyer
2016-02-12 20:50 ` Lina Iyer
2016-02-26 18:17 ` Stephen Boyd
2016-02-26 18:17 ` Stephen Boyd
2016-03-01 17:44 ` Lina Iyer
2016-03-01 17:44 ` Lina Iyer
2016-02-12 20:50 ` [RFC v2 03/12] PM / cpu_domains: Setup PM domains for CPUs/clusters Lina Iyer
2016-02-12 20:50 ` Lina Iyer
2016-02-17 23:38 ` Lina Iyer
2016-02-17 23:38 ` Lina Iyer
2016-02-18 17:29 ` [BUG FIX] PM / cpu_domains: Check for NULL callbacks Lina Iyer
2016-02-18 17:29 ` Lina Iyer
2016-02-18 17:46 ` Rafael J. Wysocki
2016-02-18 17:46 ` Rafael J. Wysocki
2016-02-18 22:51 ` Lina Iyer
2016-02-18 22:51 ` Lina Iyer
2016-02-26 19:10 ` [RFC v2 03/12] PM / cpu_domains: Setup PM domains for CPUs/clusters Stephen Boyd
2016-02-26 19:10 ` Stephen Boyd
2016-03-01 18:00 ` Lina Iyer
2016-03-01 18:00 ` Lina Iyer
2016-02-12 20:50 ` [RFC v2 04/12] ARM: cpuidle: Add runtime PM support for CPUs Lina Iyer
2016-02-12 20:50 ` Lina Iyer
2016-02-26 18:24 ` Stephen Boyd
2016-02-26 18:24 ` Stephen Boyd
2016-03-01 18:36 ` Lina Iyer
2016-03-01 18:36 ` Lina Iyer
2016-02-12 20:50 ` [RFC v2 05/12] timer: Export next wake up of a CPU Lina Iyer
2016-02-12 20:50 ` Lina Iyer
2016-02-12 20:50 ` [RFC v2 06/12] PM / cpu_domains: Record CPUs that are part of the domain Lina Iyer
2016-02-12 20:50 ` Lina Iyer
2016-02-26 19:20 ` Stephen Boyd
2016-02-26 19:20 ` Stephen Boyd
2016-03-01 19:24 ` Lina Iyer
2016-03-01 19:24 ` Lina Iyer
2016-02-12 20:50 ` [RFC v2 07/12] PM / cpu_domains: Add PM Domain governor for CPUs Lina Iyer
2016-02-12 20:50 ` Lina Iyer
2016-02-26 19:33 ` Stephen Boyd
2016-02-26 19:33 ` Stephen Boyd
2016-03-01 19:32 ` Lina Iyer
2016-03-01 19:32 ` Lina Iyer
2016-03-01 19:35 ` Stephen Boyd
2016-03-01 19:35 ` Stephen Boyd
2016-02-12 20:50 ` [RFC v2 08/12] Documentation / cpu_domains: Describe CPU PM domains setup and governor Lina Iyer
2016-02-12 20:50 ` Lina Iyer
2016-02-26 19:43 ` Stephen Boyd
2016-02-26 19:43 ` Stephen Boyd
2016-03-01 19:36 ` Lina Iyer
2016-03-01 19:36 ` Lina Iyer
2016-02-12 20:50 ` [RFC v2 09/12] drivers: firmware: psci: Allow OS Initiated suspend mode Lina Iyer
2016-02-12 20:50 ` Lina Iyer
2016-02-12 20:50 ` [RFC v2 10/12] ARM64: psci: Support cluster idle states for OS-Initiated Lina Iyer
2016-02-12 20:50 ` Lina Iyer
2016-02-12 20:50 ` [RFC v2 11/12] ARM64: dts: Add PSCI cpuidle support for MSM8916 Lina Iyer
2016-02-12 20:50 ` Lina Iyer
2016-02-12 20:50 ` Lina Iyer [this message]
2016-02-12 20:50 ` [RFC v2 12/12] ARM64: dts: Define CPU power domain " Lina Iyer
2016-02-26 19:50 ` Stephen Boyd
2016-02-26 19:50 ` Stephen Boyd
2016-03-01 19:41 ` Lina Iyer
2016-03-01 19:41 ` Lina Iyer
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