Subject: [PATCH v2] ARM: dts: sun8i-r40: remove unused GPIO regulator Banana Pi M2 Ultra V1.1 board resets immediately when the usb core tries to setup PH23 GPIO. It turned out that the V1.0 board USB-A ports are always power supplied and according to the board scheme PH23 is simply not connected. So remove the PH23 setup: Doesn't harm V1.0 (with R40) and let V1.1 (with A40i) start. Signed-off-by: Hermann Lauer <Hermann.Lauer@xxxxxxxxxxxxxxxxx> --- V2: shorten subject, rm dangerous PH23 regulator completely diff --git a/arch/arm/boot/dts/allwinner/sun8i-r40-bananapi-m2-ultra.dts b/arch/arm/boot/dts/allwinner/sun8i-r40-bananapi-m2-ultra.dts --- a/arch/arm/boot/dts/allwinner/sun8i-r40-bananapi-m2-ultra.dts +++ b/arch/arm/boot/dts/allwinner/sun8i-r40-bananapi-m2-ultra.dts @@ -91,15 +91,6 @@ }; }; - reg_vcc5v0: vcc5v0 { - compatible = "regulator-fixed"; - regulator-name = "vcc5v0"; - regulator-min-microvolt = <5000000>; - regulator-max-microvolt = <5000000>; - gpio = <&pio 7 23 GPIO_ACTIVE_HIGH>; /* PH23 */ - enable-active-high; - }; - wifi_pwrseq: pwrseq { compatible = "mmc-pwrseq-simple"; reset-gpios = <&pio 6 10 GPIO_ACTIVE_LOW>; /* PG10 WIFI_EN */ @@ -347,7 +338,5 @@ }; &usbphy { - usb1_vbus-supply = <®_vcc5v0>; - usb2_vbus-supply = <®_vcc5v0>; status = "okay"; };