From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lina Iyer Subject: [PATCH v3 15/15] ARM64: dts: Define CPU power domain for MSM8916 Date: Thu, 4 Aug 2016 17:05:02 -0600 Message-ID: <1470351902-43103-16-git-send-email-lina.iyer@linaro.org> References: <1470351902-43103-1-git-send-email-lina.iyer@linaro.org> Return-path: In-Reply-To: <1470351902-43103-1-git-send-email-lina.iyer-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, khilman-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, rjw-LthD3rsA81gm4RdzfppkhA@public.gmane.org, linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org Cc: andy.gross-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, sboyd-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org, linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Lina Iyer , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.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 | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi index 3029773..eb0aaed 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 { @@ -113,6 +117,29 @@ psci { compatible = "arm,psci-1.0"; method = "smc"; + + CPU_PD: cpu-pd@0 { + #power-domain-cells = <0>; + domain-idle-states = <&CLUSTER_RET>, <&CLUSTER_PWR_DWN>; + }; + + domain-states { + CLUSTER_RET: domain_ret { + compatible = "arm,idle-state"; + arm,psci-suspend-param = <0x1000010>; + entry-latency-us = <500>; + exit-latency-us = <500>; + min-residency-us = <2000>; + }; + + CLUSTER_PWR_DWN: domain_gdhs { + compatible = "arm,idle-state"; + arm,psci-suspend-param = <0x1000030>; + entry-latency-us = <2000>; + exit-latency-us = <2000>; + min-residency-us = <6000>; + }; + }; }; timer { -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html