[PATCH 4.9 044/175] ARM: dts: exynos: fix USB 3.0 pins supply being turned off on Odroid XU

[Greg Kroah-Hartman]

From: Krzysztof Kozlowski <krzk@xxxxxxxxxx>

commit bd7e7ff56feea7810df900fb09c9741d259861d9 upstream.

On Odroid XU LDO12 and LDO15 supplies the power to USB 3.0 blocks but
the GPK GPIO pins are supplied by LDO7 (VDDQ_LCD).  LDO7 also supplies
GPJ GPIO pins.

The Exynos pinctrl driver does not take any supplies, so to have entire
GPIO block always available, make the regulator always on.

Fixes: 88644b4c750b ("ARM: dts: exynos: Configure PWM, usb3503, PMIC and thermal on Odroid XU board")
Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20201015182044.480562-3-krzk@xxxxxxxxxx
Tested-by: Gabriel Ribba Esteva <gabriel.ribbae@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 arch/arm/boot/dts/exynos5410-odroidxu.dts |    2 ++
 1 file changed, 2 insertions(+)

--- a/arch/arm/boot/dts/exynos5410-odroidxu.dts
+++ b/arch/arm/boot/dts/exynos5410-odroidxu.dts
@@ -271,6 +271,8 @@
 				regulator-name = "vddq_lcd";
 				regulator-min-microvolt = <1800000>;
 				regulator-max-microvolt = <1800000>;
+				/* Supplies also GPK and GPJ */
+				regulator-always-on;
 			};
 
 			ldo8_reg: LDO8 {