[PATCH] drm/mipi-dbi: Fix blanking for non-16 bit formats

[Maxime Ripard]

On Mon, 14 Apr 2025 22:32:59 -0700, Russell Cloran wrote:
> On r6x2b6x2g6x2 displays not enough blank data is sent to blank the
> entire screen. When support for these displays was added, the dirty
> function was updated to handle the different amount of data, but
> blanking was not, and remained hardcoded as 2 bytes per pixel.
> 
> This change applies almost the same algorithm used in the dirty function
> to the blank function, but there is no fb available at that point, and
> no concern about having to transform any data, so the dbidev pixel
> format is always used for calculating the length.
> 
> [...]

Applied to misc/kernel.git (drm-misc-fixes).

Thanks!
Maxime