[PATCH] video: Add simple driver for ST-Ericsson MCDE with pre-configured display

[Linus Walleij]

On Fri, Jul 2, 2021 at 7:22 PM Stephan Gerhold <stephan at gerhold.net> wrote:

> The U-Boot port for ST-Ericsson Ux500 is currently only used on the
> "stemmy" board, where U-Boot runs after firmware that already sets up
> a boot splash screen. This means that the display is already on
> and we can just continue using it for U-Boot.
>
> Add a simple driver that simplifies this by reading the display
> configuration (e.g. screen size, bpp) from the hardware registers.
>
> It also checks the configured "source synchronization" - for some
> displays (usually DSI command mode displays) we need to explicitly
> trigger a software sync. This is done through the video_sync()
> callback that triggers the sync and wait for completion.
>
> Cc: Linus Walleij <linus.walleij at linaro.org>
> Signed-off-by: Stephan Gerhold <stephan at gerhold.net>

Reviewed-by: Linus Walleij <linus.walleij at linaro.org>

Yours,
Linus Walleij