the aldo1 is connect regulator pin which power the TV. The USB core use TV ref as reference Voltage. Signed-off-by: fuyao <fuyao1697@xxxxxxx> --- arch/arm/boot/dts/allwinner/sun8i-r40-feta40i.dtsi | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm/boot/dts/allwinner/sun8i-r40-feta40i.dtsi b/arch/arm/boot/dts/allwinner/sun8i-r40-feta40i.dtsi index 9f39b5a2bb35..8906170461df 100644 --- a/arch/arm/boot/dts/allwinner/sun8i-r40-feta40i.dtsi +++ b/arch/arm/boot/dts/allwinner/sun8i-r40-feta40i.dtsi @@ -42,6 +42,13 @@ &pio { vcc-pg-supply = <®_dldo1>; }; +®_aldo1 { + regulator-always-on; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-name = "vcc-aldo1"; +}; + ®_aldo2 { regulator-always-on; regulator-min-microvolt = <1800000>; -- 2.39.2 -- CYG Technology.