linux-kernel - [PATCH 6/9] arm64: dts: imx8mn-bsh-smm-s2-common: Set minimum value for VDD_DRAM_VPU

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Message-ID: <20250514082507.1983849-7-dario.binacchi@amarulasolutions.com>
Date: Wed, 14 May 2025 10:25:00 +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 6/9] arm64: dts: imx8mn-bsh-smm-s2-common: Set minimum value for VDD_DRAM_VPU_GPU

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

Buck3 is called Buck5 in the BD71847 datasheet. This buck supports
0.55...1.35V. 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 fd12b97525d1..81fa0a8767e2 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
@@ -135,7 +135,7 @@ buck2_reg: BUCK2 {
 			buck3_reg: BUCK3 {
 				/* PMIC_BUCK5 - VDD_DRAM_VPU_GPU */
 				regulator-name = "buck3";
-				regulator-min-microvolt = <700000>;
+				regulator-min-microvolt = <550000>;
 				regulator-max-microvolt = <1350000>;
 				regulator-boot-on;
 				regulator-always-on;
-- 
2.43.0