Re: [PATCH v1 4/6] drm/tegra: Add support for 8-bit CPU interface

[Svyatoslav Ryhel]

ср, 30 вер. 2026 р. о 11:48 Thierry Reding <thierry.reding@xxxxxxxxxx> пише:
>
> On Wed, Sep 30, 2026 at 10:05:33AM +0300, Svyatoslav Ryhel wrote:
> > The display controller in Tegra20/30 SoCs features an 8-bit SPI interface
> > that closely resembles the MIPI DBI Type B protocol and is referred to as
> > '8-bit CPU'. Each display controller provides two such interfaces, which
> > can be used to send MIPI DCS commands to initialize and control the panel
> > while image data is transmitted via 16/18/24-line RGB.
> >
> > Signed-off-by: Svyatoslav Ryhel <clamor95@xxxxxxxxx>
> > ---
> >  drivers/gpu/drm/tegra/Kconfig      |   7 +
> >  drivers/gpu/drm/tegra/Makefile     |   1 +
> >  drivers/gpu/drm/tegra/cpu-bridge.c | 427 +++++++++++++++++++++++++++++
> >  3 files changed, 435 insertions(+)
> >  create mode 100644 drivers/gpu/drm/tegra/cpu-bridge.c
>
> This doesn't need to be a separate driver. It should all live in dc.c.
> Or maybe even rgb.c, since it uses pretty much the same pins and is
> quite similar to it.
>

I don't mind moving this to dc or rgb, my intention was to avoid
bloating them with smth that is not used often and is present only on
Tegra20 and Tegra30.

> Thierry