Re: [PATCH 0/5] drm/vkms: support more formats and fix RGB565 regression

[Matheus Alves de Almeida <matheus.aalmeida@inf.ufrgs.br>]

Em 2026-09-27 21:52, Matheus Alves de Almeida escreveu:
> Hi,
> 
> This series adds support for RGB332, BGR233 and BGR565 writeback. This
> is done with new helpers added to make conversion easier. It also fixes
> a regression in the RGB565 write conversion.
> 
> The argb_u16_to_RGB565() code currently truncates the resulting
> channels. This behavior was originally fixed by commit
> ab87f558dcfb ("drm/vkms: Fix RGB565 pixel conversion"),
> but the fix was lost during a refactor in commit
> cc4fd2934d41 ("drm/vkms: Isolate writeback pixel conversion functions").
> The rounding behavior has been restored using the new
> argb_u16_to_channels() helper.
> 
> Matheus Alves de Almeida (5):
>   drm/vkms: make argb_u16_to_RGB565 round resulting values
>   drm/vkms: support BGR565 writeback
>   drm/vkms: add a helper for channel to argb_u16 conversion
>   drm/vkms: add support for RGB332
>   drm/vkms: add support for BGR233
> 
>  drivers/gpu/drm/vkms/vkms_formats.c   | 136 ++++++++++++++++++++------
>  drivers/gpu/drm/vkms/vkms_plane.c     |   2 +
>  drivers/gpu/drm/vkms/vkms_writeback.c |   5 +-
>  3 files changed, 112 insertions(+), 31 deletions(-)

Hi,

Gentle ping on this. Has anyone been able to take a look at it yet?

Thanks,
Matheus