Francesco Lavra <[email protected]> writes:
Hello Francesco,
Thanks for the patch!
> In page addressing mode, the pixel values of a dirty rectangle must be sent
> to the display controller one page at a time. The range of pages
> corresponding to a given rectangle is being incorrectly calculated as if
> the Y value of the top left coordinate of the rectangle was 0. This can
> result in rectangle updates being displayed on wrong parts of the screen.
>
> Fix the above issue by consolidating the start page calculation in a single
> place at the beginning of the update_rect function, and using the
> calculated value for all addressing modes.
>
> Fixes: b0daaa5cfaa5 ("drm/ssd130x: Support page addressing mode")
> Signed-off-by: Francesco Lavra <[email protected]>
> ---
Reviewed-by: Javier Martinez Canillas <[email protected]>
--
Best regards,
Javier Martinez Canillas
Core Platforms
Red Hat
