linux-kernel - [PATCH V1] arm64: dts: qcom: sa8775p-ride: Update L4C parameters

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Message-Id: <20230711104255.16488-1-quic_nitirawa@quicinc.com>
Date:   Tue, 11 Jul 2023 16:12:55 +0530
From:   Nitin Rawat <quic_nitirawa@...cinc.com>
To:     agross@...nel.org, andersson@...nel.org, konrad.dybcio@...aro.org,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        conor+dt@...nel.org
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Naveen Kumar Goud Arepalli <quic_narepall@...cinc.com>
Subject: [PATCH V1] arm64: dts: qcom: sa8775p-ride: Update L4C parameters

From: Naveen Kumar Goud Arepalli <quic_narepall@...cinc.com>

L4c is the supply for UFS vccq, As per UFS spec range of vccq is
1.14V to 1.26V, There are stability issues when operating at
marginal voltage. Hence configure the min and max vccq voltages
to 1.2V.

Signed-off-by: Naveen Kumar Goud Arepalli <quic_narepall@...cinc.com>
---
 arch/arm64/boot/dts/qcom/sa8775p-ride.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sa8775p-ride.dts b/arch/arm64/boot/dts/qcom/sa8775p-ride.dts
index ab767cfa51ff..26f5a4e0ffed 100644
--- a/arch/arm64/boot/dts/qcom/sa8775p-ride.dts
+++ b/arch/arm64/boot/dts/qcom/sa8775p-ride.dts
@@ -153,8 +153,8 @@
 
 		vreg_l4c: ldo4 {
 			regulator-name = "vreg_l4c";
-			regulator-min-microvolt = <1100000>;
-			regulator-max-microvolt = <1300000>;
+			regulator-min-microvolt = <1200000>;
+			regulator-max-microvolt = <1200000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
 			/*
 			 * FIXME: This should have regulator-allow-set-load but
-- 
2.17.1