Re: [PATCH v2 3/3] Add vqmmc-supply on NanoPi NEO Plus2

[Andre Przywara]

On Tue, 27 Aug 2024 23:00:45 +0200
Kryštof Černý <cleverline1mc@xxxxxxxxx> wrote:

> Adds missing vqmmc-supply for mmc2.

Does that patch actually fix anything? Does the kernel complain about the
missing vqmmc regulator?
I am asking because I wonder if we need this patch in the first place. The
generic MMC DT binding marks the vqmmc property as optional.

So I appreciate the idea of making everything neat and tidy, but after all
we have little actual proof that the voltage is really 3.3V, so I'd just
leave it as it is.

Cheers,
Andre

> 
> Signed-off-by: Kryštof Černý <cleverline1mc@xxxxxxxxx>
> ---
>  arch/arm64/boot/dts/allwinner/sun50i-h5-nanopi-neo-plus2.dts | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5-nanopi-neo-plus2.dts b/arch/arm64/boot/dts/allwinner/sun50i-h5-nanopi-neo-plus2.dts
> index 526443bb736c..609560a9d6dc 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-h5-nanopi-neo-plus2.dts
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h5-nanopi-neo-plus2.dts
> @@ -157,6 +157,7 @@ &mmc2 {
>  	pinctrl-names = "default";
>  	pinctrl-0 = <&mmc2_8bit_pins>;
>  	vmmc-supply = <&reg_vcc3v3>;
> +	vqmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <8>;
>  	non-removable;
>  	cap-mmc-hw-reset;
>