On Tue, 10 Dec 2024 09:04:03 +0100, Sven Püschel wrote:
> Don't send an image to the display before it is initialized, as it can
> cause a broken image being stored in the display memory and being shown
> while initializing. Instead just damage the image in the flush call but
> avoid writing the actual image.
>
> This problem was experienced with a ILI9341 LCD driver and calling the
> splash command before enabling the framebuffer. The splash command flushed
> out the data, but given no initialization, they were misinterpreted.
> After enabling the display, it displayed the broken image for a short time
> before being updated. This caused a flickering effect for the viewer.
> Switching the command ordering also fixes the problem, but sends an black
> image before the actual splash image.
>
> [...]
Applied, thanks!
[1/1] video: mipi_dbi: don't send image before initialization
https://git.pengutronix.de/cgit/barebox/commit/?id=a7ae043343c8 (link may not be stable)
Best regards,
--
Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
