Received-SPF: pass (google.com: domain of linux-kernel+bounces-4025-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45e3:2400::1 as permitted sender) client-ip=2604:1380:45e3:2400::1;
From: Konrad Dybcio <konrad.dybcio@linaro.org>
Date: Mon, 18 Dec 2023 17:02:13 +0100
Subject: [PATCH 12/12] arm64: dts: qcom: sm8550: Update idle state time
 requirements
Precedence: bulk
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 7bit
Message-Id: <20231218-topic-8550_fixes-v1-12-ce1272d77540@linaro.org>
References: <20231218-topic-8550_fixes-v1-0-ce1272d77540@linaro.org>
In-Reply-To: <20231218-topic-8550_fixes-v1-0-ce1272d77540@linaro.org>
To: Bjorn Andersson <andersson@kernel.org>, 
 Georgi Djakov <djakov@kernel.org>, Abel Vesa <abel.vesa@linaro.org>, 
 Michael Turquette <mturquette@baylibre.com>, 
 Stephen Boyd <sboyd@kernel.org>, Taniya Das <quic_tdas@quicinc.com>, 
 Jagadeesh Kona <quic_jkona@quicinc.com>, 
 Neil Armstrong <neil.armstrong@linaro.org>, 
 Rob Herring <robh+dt@kernel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, 
 Conor Dooley <conor+dt@kernel.org>, 
 Sai Prakash Ranjan <quic_saipraka@quicinc.com>
Cc: Marijn Suijten <marijn.suijten@somainline.org>, 
 linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org, 
 linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, 
 devicetree@vger.kernel.org, Konrad Dybcio <konrad.dybcio@linaro.org>

The idle state entry/exit/residency times differ from what shipped on
production devices, mostly being overly optimistic in entry times and
overly pessimistic in minimal residency times. Align them with
downstream sources.

Fixes: ffc50b2d3828 ("arm64: dts: qcom: Add base SM8550 dtsi")
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 arch/arm64/boot/dts/qcom/sm8550.dtsi | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8550.dtsi b/arch/arm64/boot/dts/qcom/sm8550.dtsi
index 5143a08c4867..6a192fb41f84 100644
--- a/arch/arm64/boot/dts/qcom/sm8550.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8550.dtsi
@@ -285,9 +285,9 @@ LITTLE_CPU_SLEEP_0: cpu-sleep-0-0 {
 				compatible = "arm,idle-state";
 				idle-state-name = "silver-rail-power-collapse";
 				arm,psci-suspend-param = <0x40000004>;
-				entry-latency-us = <800>;
+				entry-latency-us = <550>;
 				exit-latency-us = <750>;
-				min-residency-us = <4090>;
+				min-residency-us = <6700>;
 				local-timer-stop;
 			};
 
@@ -296,8 +296,8 @@ BIG_CPU_SLEEP_0: cpu-sleep-1-0 {
 				idle-state-name = "gold-rail-power-collapse";
 				arm,psci-suspend-param = <0x40000004>;
 				entry-latency-us = <600>;
-				exit-latency-us = <1550>;
-				min-residency-us = <4791>;
+				exit-latency-us = <1300>;
+				min-residency-us = <8136>;
 				local-timer-stop;
 			};
 
@@ -316,17 +316,17 @@ domain-idle-states {
 			CLUSTER_SLEEP_0: cluster-sleep-0 {
 				compatible = "domain-idle-state";
 				arm,psci-suspend-param = <0x41000044>;
-				entry-latency-us = <1050>;
-				exit-latency-us = <2500>;
-				min-residency-us = <5309>;
+				entry-latency-us = <750>;
+				exit-latency-us = <2350>;
+				min-residency-us = <9144>;
 			};
 
 			CLUSTER_SLEEP_1: cluster-sleep-1 {
 				compatible = "domain-idle-state";
 				arm,psci-suspend-param = <0x4100c344>;
-				entry-latency-us = <2700>;
-				exit-latency-us = <3500>;
-				min-residency-us = <13959>;
+				entry-latency-us = <2800>;
+				exit-latency-us = <4400>;
+				min-residency-us = <10150>;
 			};
 		};
 	};

-- 
2.43.0