Hi Liu, On Mon, Aug 14, 2023 at 5:07 AM Liu Ying <victor.liu@xxxxxxx> wrote: > + reg_vddext_3v3: regulator-vddext-3v3 { > + compatible = "regulator-fixed"; > + regulator-name = "VDDEXT_3V3"; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <300000>; > + }; Booting the dtb with this change will cause this regulator to be disabled as there is no consumer for it. I suggest squashing both patches: Tested-by: Fabio Estevam <festevam@xxxxxxxxx>