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[2/3] ARM: dts: exynos: Define vqmmc for eMMC card on Odroid X/X2/U3

Message ID 1461759553-10119-2-git-send-email-k.kozlowski@samsung.com (mailing list archive)
State New, archived
Headers show

Commit Message

Krzysztof Kozlowski April 27, 2016, 12:19 p.m. UTC 
The eMMC card vmmc-supply contained incorrectly two regulators: LDO20
and buck8.  The second one is ignored. Additionally the buck8 is not
supplying the eMMC host but LAN (SMSC95xx). Instead the LDO22 should be
used.

Fix this by defining proper vmmc and vqmmc supplies.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
---
 arch/arm/boot/dts/exynos4412-odroid-common.dtsi | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)
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Patch

diff --git a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
index 3d0d44581fbd..55d766f28202 100644
--- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
+++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
@@ -347,6 +347,14 @@ 
 				regulator-boot-on;
 			};
 
+			/* VDDQ for MSHC (eMMC card) */
+			ldo22_reg: LDO22 {
+				regulator-name = "VDDQ_MMC4_2.8V";
+				regulator-min-microvolt = <2800000>;
+				regulator-max-microvolt = <2800000>;
+				regulator-boot-on;
+			};
+
 			ldo25_reg: LDO25 {
 				regulator-name = "VDDQ_LCD_1.8V";
 				regulator-min-microvolt = <1800000>;
@@ -456,7 +464,8 @@ 
 &mshc_0 {
 	pinctrl-0 = <&sd4_clk &sd4_cmd &sd4_bus4 &sd4_bus8>;
 	pinctrl-names = "default";
-	vmmc-supply = <&ldo20_reg &buck8_reg>;
+	vmmc-supply = <&ldo20_reg>;
+	vqmmc-supply = <&ldo22_reg>;
 	mmc-pwrseq = <&emmc_pwrseq>;
 	status = "okay";