ARM: dts: exynos: fix USB 3.0 pins supply being turned off on Odroid XU

BugLink: https://bugs.launchpad.net/bugs/1910822
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@kernel.org>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20201015182044.480562-3-krzk@kernel.org
Tested-by: Gabriel Ribba Esteva <gabriel.ribbae@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Kelsey Skunberg <kelsey.skunberg@canonical.com>

diff --git a/arch/arm/boot/dts/exynos5410-odroidxu.dts b/arch/arm/boot/dts/exynos5410-odroidxu.dts
index 1b07ae0c61fd80a5d8b73fc65e9f7894381f2910..f68baaf58f9e3a922059de3e549a9959294ec540 100644 (file)
--- a/arch/arm/boot/dts/exynos5410-odroidxu.dts
+++ b/arch/arm/boot/dts/exynos5410-odroidxu.dts
@@ -327,6 +327,8 @@
                                regulator-name = "vddq_lcd";
                                regulator-min-microvolt = <1800000>;
                                regulator-max-microvolt = <1800000>;
+                               /* Supplies also GPK and GPJ */
+                               regulator-always-on;
                        };
 
                        ldo8_reg: LDO8 {