linux-kernel - [PATCH 4.19 113/116] ARM: dts: imx6: phycore-som: fix arm and soc minimum voltage

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Message-Id: <20200401161556.559331247@linuxfoundation.org>
Date:   Wed,  1 Apr 2020 18:18:09 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Marco Felsch <m.felsch@...gutronix.de>,
        Shawn Guo <shawnguo@...nel.org>
Subject: [PATCH 4.19 113/116] ARM: dts: imx6: phycore-som: fix arm and soc minimum voltage

From: Marco Felsch <m.felsch@...gutronix.de>

commit 636b45b8efa91db05553840b6c0120d6fa6b94fa upstream.

The current set minimum voltage of 730000µV seems to be wrong. I don't
know the document which specifies that but the imx6qdl datasheets says
that the minimum voltage should be 0.925V for VDD_ARM (LDO bypassed,
lowest opp) and 1.15V for VDD_SOC (LDO bypassed, lowest opp).

Fixes: ddec5d1c0047 ("ARM: dts: imx6: Add initial support for phyCORE-i.MX 6 SOM")
Signed-off-by: Marco Felsch <m.felsch@...gutronix.de>
Signed-off-by: Shawn Guo <shawnguo@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/arm/boot/dts/imx6qdl-phytec-phycore-som.dtsi |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/arch/arm/boot/dts/imx6qdl-phytec-phycore-som.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-phytec-phycore-som.dtsi
@@ -107,14 +107,14 @@
 		regulators {
 			vdd_arm: buck1 {
 				regulator-name = "vdd_arm";
-				regulator-min-microvolt = <730000>;
+				regulator-min-microvolt = <925000>;
 				regulator-max-microvolt = <1380000>;
 				regulator-always-on;
 			};
 
 			vdd_soc: buck2 {
 				regulator-name = "vdd_soc";
-				regulator-min-microvolt = <730000>;
+				regulator-min-microvolt = <1150000>;
 				regulator-max-microvolt = <1380000>;
 				regulator-always-on;
 			};