linux-kernel - [PATCH 4.19 040/243] ARM: dts: exynos: Fix LDO13 min values on Odroid XU3/XU4/HC1

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Message-Id: <20191211150341.878081012@linuxfoundation.org>
Date:   Wed, 11 Dec 2019 16:03:22 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Anand Moon <linux.amoon@...il.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 040/243] ARM: dts: exynos: Fix LDO13 min values on Odroid XU3/XU4/HC1

From: Anand Moon <linux.amoon@...il.com>

[ Upstream commit 8fe325fa9d065aa54db4914fdaccab2169fd67a8 ]

>>From Odroid XU3/XU4/HC1 schematics the LDO13 regulator for SD2, can be
set on 1.8V or 2.8V so the minimal value should be fixed to 1.8V.  This
is necessary to support UHS-I tuning (otherwise card won't be detected
during boot).

Signed-off-by: Anand Moon <linux.amoon@...il.com>
Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm/boot/dts/exynos5422-odroid-core.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/exynos5422-odroid-core.dtsi b/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
index 27214e6ebe4f4..d476ba0f07b6b 100644
--- a/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
+++ b/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
@@ -224,7 +224,7 @@
 
 			ldo13_reg: LDO13 {
 				regulator-name = "vddq_mmc2";
-				regulator-min-microvolt = <2800000>;
+				regulator-min-microvolt = <1800000>;
 				regulator-max-microvolt = <2800000>;
 			};
 
-- 
2.20.1