Re: [PATCH] arm64: dts: allwinner: h6: add eMMC voltage property for Beelink GS1

[Maxime Ripard <maxime@xxxxxxxxxx>]

Hi,

On Mon, Sep 28, 2020 at 05:00:37PM +0200, Clément Péron wrote:
> VQMMC supply is connected to BLDO2 which provides 1.8V.
> 
> Let's reflect this in the device-tree.

This commit log doesn't really explain what is going on though?

> Fixes: 089bee8dd119 ("arm64: dts: allwinner: h6: Introduce Beelink GS1 board")
> Signed-off-by: Clément Péron <peron.clem@xxxxxxxxx>
> ---
>  arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
> index 049c21718846..3f20d2c9bbbb 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
> @@ -145,6 +145,7 @@ &mmc2 {
>  	vqmmc-supply = <&reg_bldo2>;

The Device Tree already expresses that the vqmmc supply is connected to
BLDO2 which provides 1.8V here (together with the reg_bldo2 node).

>  	non-removable;
>  	cap-mmc-hw-reset;
> +	mmc-hs200-1_8v;

Whereas this indicates that the eMMC supports the HS200 MMC mode at 1.8V

Maxime

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