Re: [PATCH/RFC] drm: Remove unused Renesas SH Mobile DRM driver

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Hello,

On Mon, Jan 21, 2019 at 11:18:26AM +0100, Daniel Vetter wrote:
>  On Mon, Jan 21, 2019 at 11:03:44AM +0100, Geert Uytterhoeven wrote:
> > On Mon, Jan 21, 2019 at 10:35 AM Daniel Vetter <daniel@xxxxxxxx> wrote:
> >> On Fri, Jan 18, 2019 at 05:22:58PM +0100, Geert Uytterhoeven wrote:
> >>> Since its incarnation in v3.7 almost 7 years ago, no users of the SH
> >>> Mobile DRM driver have appeared.
> >>> 
> >>> Hence remove the driver.  It can be resurrected from git history,
> >>> if/when needed.
> >>> 
> >>> Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
> >> 
> >> I'd prefer removing the fbdev variant tbh ...
> > 
> > I understand ;-)
> > 
> > But sh_mobile_lcdc_fb is used on 5 legacy SuperH platforms, and 1 ARM
> > platform. At least the latter is working fine.
> > 
> >> Not sure why exactly the switch never happened.
> > 
> > Me neither.  I^HGoogle can't even find posted patches of board integration.
> > 
> > Note that both drivers lack DT support, which would be very desirable on
> > ARM, as graphics is the single remaining working driver on the Atmark
> > Techno Armadillo 800 EVA board not using DT.
>  
>  Ah I wondered why the drm driver isn't just automatically picked up in
>  today's neat world of DT (if you enable it in .config instead of the fbdev
>  one). It's not even using DT yet :-/

I'd prefer dropping the fbdev driver too, but that would require porting
the SH boards to the DRM driver, and implement DT support for the ARM
board. I don't think anyone is willing to invest time in this, so I'm
fine dropping this driver as the boards are pretty much dead. I would,
however, also drop the fbdev driver in that case.

-- 
Regards,

Laurent Pinchart
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