From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lina Iyer Subject: [PATCH 14/14] ARM64: dts: Define CPU power domain for MSM8916 Date: Wed, 22 Jun 2016 13:36:49 -0600 Message-ID: <1466624209-27432-15-git-send-email-lina.iyer@linaro.org> References: <1466624209-27432-1-git-send-email-lina.iyer@linaro.org> Return-path: In-Reply-To: <1466624209-27432-1-git-send-email-lina.iyer@linaro.org> Sender: linux-pm-owner@vger.kernel.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, andy.gross@linaro.org, sboyd@codeaurora.org, linux-arm-msm@vger.kernel.org, lorenzo.pieralisi@arm.com, ahaslam@baylibre.com, mtitinger@baylibre.com, Lina Iyer , devicetree@vger.kernel.org List-Id: devicetree@vger.kernel.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: Signed-off-by: Lina Iyer --- 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 3029773..208af00 100644 --- a/arch/arm64/boot/dts/qcom/msm8916.dtsi +++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi @@ -64,6 +64,7 @@ next-level-cache = <&L2_0>; enable-method = "psci"; cpu-idle-states = <&CPU_SPC>; + power-domains = <&CPU_PD>; }; CPU1: cpu@1 { @@ -73,6 +74,7 @@ next-level-cache = <&L2_0>; enable-method = "psci"; cpu-idle-states = <&CPU_SPC>; + power-domains = <&CPU_PD>; }; CPU2: cpu@2 { @@ -82,6 +84,7 @@ next-level-cache = <&L2_0>; enable-method = "psci"; cpu-idle-states = <&CPU_SPC>; + power-domains = <&CPU_PD>; }; CPU3: cpu@3 { @@ -91,6 +94,7 @@ next-level-cache = <&L2_0>; enable-method = "psci"; cpu-idle-states = <&CPU_SPC>; + power-domains = <&CPU_PD>; }; L2_0: l2-cache { @@ -110,6 +114,27 @@ }; }; + 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"; -- 2.7.4