linux-kernel - [PATCH 7/9] arm64: dts: imx8mn-bsh-smm-s2-common: Set minimum value for VDD

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Message-ID: <20250514082507.1983849-8-dario.binacchi@amarulasolutions.com>
Date: Wed, 14 May 2025 10:25:01 +0200
From: Dario Binacchi <dario.binacchi@...rulasolutions.com>
To: linux-kernel@...r.kernel.org
Cc: Simon Holesch <simon.holesch@...g.com>,
	Karthikdatt Anantharamrao <karthikdatt.anantharamrao@...bosch.com>,
	michael@...rulasolutions.com,
	linux-amarula@...rulasolutions.com,
	Wolfgang Birkner <wolfgang.birkner@...g.com>,
	Dario Binacchi <dario.binacchi@...rulasolutions.com>,
	Conor Dooley <conor+dt@...nel.org>,
	Fabio Estevam <festevam@...il.com>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Rob Herring <robh@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Shawn Guo <shawnguo@...nel.org>,
	devicetree@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 7/9] arm64: dts: imx8mn-bsh-smm-s2-common: Set minimum value for VDD_3V3

From: Wolfgang Birkner <wolfgang.birkner@...g.com>

Buck4 is called Buck6 in the BD71847 datasheet. This buck supports
2.6...3.3V. Set the minimum allowed value.

Signed-off-by: Wolfgang Birkner <wolfgang.birkner@...g.com>
Signed-off-by: Dario Binacchi <dario.binacchi@...rulasolutions.com>
---

 arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-common.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-common.dtsi b/arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-common.dtsi
index 81fa0a8767e2..04112a83b1d3 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-common.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-common.dtsi
@@ -144,7 +144,7 @@ buck3_reg: BUCK3 {
 			buck4_reg: BUCK4 {
 				/* PMIC_BUCK6 - VDD_3V3 */
 				regulator-name = "buck4";
-				regulator-min-microvolt = <3000000>;
+				regulator-min-microvolt = <2600000>;
 				regulator-max-microvolt = <3300000>;
 				regulator-boot-on;
 				regulator-always-on;
-- 
2.43.0