Re: [PATCH] drm/st7735r: Fix module autoloading for Okaya RH128128T

[David Lechner]

On 5/20/22 4:16 AM, Javier Martinez Canillas wrote:
> The SPI core always reports a "MODALIAS=spi:<foo>", even if the device was
> registered via OF. This means that the st7735r.ko module won't autoload if
> a DT has a node with a compatible "okaya,rh128128t" string.
>
> In that case, kmod expects a "MODALIAS=of:N*T*Cokaya,rh128128t" uevent but
> instead will get a "MODALIAS=spi:rh128128t", which is not present in the
> list of aliases:
>
>    $ modinfo drivers/gpu/drm/tiny/st7735r.ko | grep alias
>    alias:          of:N*T*Cokaya,rh128128tC*
>    alias:          of:N*T*Cokaya,rh128128t
>    alias:          of:N*T*Cjianda,jd-t18003-t01C*
>    alias:          of:N*T*Cjianda,jd-t18003-t01
>    alias:          spi:jd-t18003-t01
>
> To workaround this issue, add in the SPI table an entry for that device.
>
> Fixes: d1d511d516f7 ("drm: tiny: st7735r: Add support for Okaya RH128128T")
> Signed-off-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>
> ---

Acked-by: David Lechner <david@xxxxxxxxxxxxxx>