[PATCH v2] drm/panel: db7430: Add driver for Samsung DB7430

[Linus Walleij]

On Tue, Jun 1, 2021 at 11:31 PM Doug Anderson <dianders at chromium.org> wrote:

> Still hoping that this can work atop DBI so we can avoid the raw SPI
> writes. You said you're trying for it for v3 so I'm looking forward to
> checking it out there.

Struggling with this. The DBI bus is only used by tiny DRM
for the panel drivers that are jitted with that display controller
ATM. No normal panel driver is using it.

> panel-simple also sets the bpc in the "display_info". Do you need to?
>
> I didn't see a reply, so I'm still curious about the answer.

I think it depends on whether the display controller/bridge actually
make use of this or not. It is implied from the MEDIA_BUS_FMT*
in practice and this controller (MCDE) only had settings for
BPP, no fine grained bits to fiddle for BPC.

But I added it for completeness, why not! Who knows who else
will come along. I think I should patch a few other drivers with
this as well.

Yours,
Linus Walleij