ARM: dts: exynos: Fix LDO13 min values on Odroid XU3/XU4/HC1

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@gmail.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
[backport of mainline commit 8fe325fa9d065aa54db4914fdaccab2169fd67a8]
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Change-Id: Ife4ea8f5f221de8be59bcba2985b099a8775cea4

diff --git a/arch/arm/boot/dts/exynos5422-odroid-core.dtsi b/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
index 453b20a..8c4d161 100644 (file)
--- a/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
+++ b/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
@@ -244,7 +244,7 @@
 
                        ldo13_reg: LDO13 {
                                regulator-name = "vddq_mmc2";
-                               regulator-min-microvolt = <2800000>;
+                               regulator-min-microvolt = <1800000>;
                                regulator-max-microvolt = <2800000>;
                        };