Linux-ARM-MSM Archive on lore.kernel.org
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From: Bjorn Andersson <bjorn.andersson@linaro.org>
To: Andy Gross <agross@kernel.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Loic Poulain <loic.poulain@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>,
	linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH] arm64: dts: qcom: msm8996: Reduce vdd_apc voltage
Date: Tue, 17 Mar 2020 22:44:42 -0700
Message-ID: <20200318054442.3066726-1-bjorn.andersson@linaro.org> (raw)

Some msm8996 based devices are unstable when run with VDD_APC of 1.23V,
which is listed as the maximum voltage in "Turbo" mode. Given that the
CPU cluster is not run in "Turbo" mode, reduce this to 0.98V - the
maximum voltage for nominal operation.

Fixes: 7a2a2231ef22 ("arm64: dts: apq8096-db820c: Fix VDD core voltage")
Cc: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---
 arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
index af87350b5547..4692b7ad16b7 100644
--- a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
@@ -658,8 +658,8 @@ s10 {
 	s11 {
 		qcom,saw-leader;
 		regulator-always-on;
-		regulator-min-microvolt = <1230000>;
-		regulator-max-microvolt = <1230000>;
+		regulator-min-microvolt = <980000>;
+		regulator-max-microvolt = <980000>;
 	};
 };
 
-- 
2.24.0


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Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-18  5:44 Bjorn Andersson [this message]
2020-03-30  9:11 ` Loic Poulain

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