Re: [PATCH 1/3 v2] ARM: dts: rk3288-tinker.dtsi: Fix SD card detection

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Hi,

On Mon, Feb 25, 2019 at 1:05 PM David Summers
<beagleboard@xxxxxxxxxxxxxxxxxxx> wrote:
> I was going to say that:
> https://github.com/torvalds/linux/blob/master/Documentation/devicetree/bindings/mmc/mmc.txt
> says:
>
> - disable-wp: When set no physical WP line is present. This property should
>    only be specified when the controller has a dedicated write-protect
> detection logic.
>
> Do we know that dw_mmc-rockchip.c has write-protect detection logic? Its
> not mentioned in the code, but I don't know my way round the mmc code.

In general dw_mmc has dedicated write protect logic.  ...so yes the
property is needed.

-Doug



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