linux-kernel - [PATCH] arm64: dts: qcom: qrb5165-rb5: Disable cpuidle states

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Date:   Tue, 18 Oct 2022 20:23:48 +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: qrb5165-rb5: Disable cpuidle states

Disable cpuidle states for RB5. These cpuidle states
made the device highly unstable and it runs into the
following crash frequently:

[    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

Fixes: 32bc936d7321 ("arm64: dts: qcom: sm8250: Add cpuidle states")
Signed-off-by: Amit Pundir <amit.pundir@...aro.org>
---
 arch/arm64/boot/dts/qcom/qrb5165-rb5.dts | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
index cc003535a3c5..f936c41bfbea 100644
--- a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
+++ b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
@@ -251,6 +251,14 @@ qca639x: qca639x {
 
 };
 
+&LITTLE_CPU_SLEEP_0 {
+	status = "disabled";
+};
+
+&BIG_CPU_SLEEP_0 {
+	status = "disabled";
+};
+
 &adsp {
 	status = "okay";
 	firmware-name = "qcom/sm8250/adsp.mbn";
-- 
2.25.1