linux-kernel - Re: [PATCH v2] arm64: dts: allwinner: h6: orangepi-3: Add eMMC node

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Date:   Tue, 11 Feb 2020 07:51:41 +0100
From:   Maxime Ripard <maxime@...no.tech>
To:     Jernej Skrabec <jernej.skrabec@...l.net>
Cc:     wens@...e.org, robh+dt@...nel.org, mark.rutland@....com,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-sunxi@...glegroups.com
Subject: Re: [PATCH v2] arm64: dts: allwinner: h6: orangepi-3: Add eMMC node

On Mon, Feb 10, 2020 at 06:40:07PM +0100, Jernej Skrabec wrote:
> OrangePi 3 can optionally have 8 GiB eMMC (soldered on board). Because
> those pins are dedicated to eMMC exclusively, node can be added for both
> variants (with and without eMMC). Kernel will then scan bus for presence
> of eMMC and act accordingly.
>
> Signed-off-by: Jernej Skrabec <jernej.skrabec@...l.net>
> ---
> Changes since v1:
> - don't make separate DT just for -emmc variant - add node to existing
>   orangepi 3 DT
>
>  arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts | 9 +++++++++
>  1 file changed, 9 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
> index c311eee52a35..1e0abd9d047f 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
> @@ -144,6 +144,15 @@ brcm: sdio-wifi@1 {
>  	};
>  };
>
> +&mmc2 {
> +	vmmc-supply = <&reg_cldo1>;
> +	vqmmc-supply = <&reg_bldo2>;
> +	cap-mmc-hw-reset;
> +	non-removable;

Given that non-removable is documented as "Non-removable slot (like
eMMC); assume always present.", we should probably get rid of that
property?

Maxime

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