linux-kernel - [PATCH] arm64: dts: qcom: sm8250: drop idlestate for the CPU cluster

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Date:   Thu, 20 Oct 2022 21:02:38 +0530
From:   Amit Pundir <amit.pundir@...aro.org>
To:     Sudeep Holla <sudeep.holla@....com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Andy Gross <agross@...nel.org>,
        Maulik Shah <quic_mkshah@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        dt <devicetree@...r.kernel.org>,
        lkml <linux-kernel@...r.kernel.org>
Subject: [PATCH] arm64: dts: qcom: sm8250: drop idlestate for the CPU cluster

Recently added cpuidle states made RB5 (sm8250) devboard
highly unstable and it runs into the following crash
frequently during the boot process:

[    T1] vreg_l11c_3p3: failed to enable: -ETIMEDOUT
[    T1] qcom-rpmh-regulator 18200000.rsc:pm8150l-rpmh-regulators: ldo11: devm_regulator_register() failed, ret=-110
[    T1] qcom-rpmh-regulator: probe of 18200000.rsc:pm8150l-rpmh-regulators failed with error -110

Removing idlestate for the CPU cluster fixes this crash for
the time being, while a proper fix is being worked upon.

Fixes: 32bc936d7321 ("arm64: dts: qcom: sm8250: Add cpuidle states")
Suggested-by: Sudeep Holla <sudeep.holla@....com>
Suggested-by: Ulf Hansson <ulf.hansson@...aro.org>
Signed-off-by: Amit Pundir <amit.pundir@...aro.org>
---
 arch/arm64/boot/dts/qcom/sm8250.dtsi | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi
index a5b62cadb129..c2d964bc3a39 100644
--- a/arch/arm64/boot/dts/qcom/sm8250.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi
@@ -700,7 +700,6 @@ CPU_PD7: cpu7 {
 
 		CLUSTER_PD: cpu-cluster0 {
 			#power-domain-cells = <0>;
-			domain-idle-states = <&CLUSTER_SLEEP_0>;
 		};
 	};
 
-- 
2.25.1