arm64: dts: rockchip: fix sdmmc detection on boot on rk3328-roc-cc

With working GPIO, during init the GPIO state s reset.
This causes the sdmmc regulator to shut down, preventing detection.
Removing and replacing the card will allow it to be detected, but that should not be necessary.
Fix this by setting the regulator on at boot.

Signed-off-by: Peter Geis <pgwipeout@gmail.com>
Link: https://lore.kernel.org/r/20191016185945.1962-1-pgwipeout@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts b/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts
index bb40c16..8d553c9 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts
@@ -35,6 +35,7 @@
                gpio = <&gpio0 RK_PD6 GPIO_ACTIVE_LOW>;
                pinctrl-names = "default";
                pinctrl-0 = <&sdmmc0m1_gpio>;
+               regulator-boot-on;
                regulator-name = "vcc_sd";
                regulator-min-microvolt = <3300000>;
                regulator-max-microvolt = <3300000>;