ARM: dts: exynos: Lower SD card interface voltage to 2.8 V on Odroid X/X2/U3

Odroid X/X2/U3 schematics say that SD card vmmc regulator
(LDO21/TFLASH) operates on 2.8 V. Mainline U-Boot uses that value as
well and 2.8 V is common on Exynos-based boards. Additionally use some
descriptive name for this regulator.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>

diff --git a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
index a31d34e5180fedf019c112579b504994a01fdb5a..2a7df4301509b781cc25866091657e5fd2c532dc 100644 (file)
--- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
+++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
@@ -389,9 +389,9 @@
                        };
 
                        ldo21_reg: LDO21 {
-                               regulator-name = "LDO21_3.3V";
-                               regulator-min-microvolt = <3300000>;
-                               regulator-max-microvolt = <3300000>;
+                               regulator-name = "TFLASH_2.8V";
+                               regulator-min-microvolt = <2800000>;
+                               regulator-max-microvolt = <2800000>;
                                regulator-boot-on;
                        };