linux-kernel - [PATCH v3 2/2] arm64: dts: qcom: sa8155p-adp: lower min volt for L13C regulator

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Date: Fri, 12 Apr 2024 19:03:26 +0000
From: Volodymyr Babchuk <Volodymyr_Babchuk@...m.com>
To: "linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>
CC: Stephan Gerhold <stephan@...hold.net>,
        Volodymyr Babchuk
	<Volodymyr_Babchuk@...m.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad
 Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley
	<conor+dt@...nel.org>,
        "devicetree@...r.kernel.org"
	<devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>
Subject: [PATCH v3 2/2] arm64: dts: qcom: sa8155p-adp: lower min volt for L13C
 regulator

Voltage regulator L13C is used by SD card IO interface. In order to
support UHS modes, IO interface voltage needs to be set to 1.8V. This
patch extends minimum voltage range of L13C regulator to allow this.

Signed-off-by: Volodymyr Babchuk <volodymyr_babchuk@...m.com>
---
 arch/arm64/boot/dts/qcom/sa8155p-adp.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sa8155p-adp.dts b/arch/arm64/boot/dts/qcom/sa8155p-adp.dts
index b2cf2c988336c..9e9c7f81096bb 100644
--- a/arch/arm64/boot/dts/qcom/sa8155p-adp.dts
+++ b/arch/arm64/boot/dts/qcom/sa8155p-adp.dts
@@ -283,7 +283,7 @@ vreg_l12c_1p808: ldo12 {
 
 		vreg_l13c_2p96: ldo13 {
 			regulator-name = "vreg_l13c_2p96";
-			regulator-min-microvolt = <2504000>;
+			regulator-min-microvolt = <1800000>;
 			regulator-max-microvolt = <2960000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
 		};
-- 
2.44.0