Re: [PATCH 2/2] drm: lcdif: force modeset when FB format changes

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On Thu, Jun 1, 2023 at 2:45 AM Lucas Stach <l.stach@xxxxxxxxxxxxxx> wrote:
>
> Force a modeset if the new FB has a different format than the
> currently active one. While it might be possible to change between
> compatible formats without a full modeset as the format control is
> also supposed to be double buffered, the colorspace conversion is
> not, so when the CSC changes we need a modeset.
>
> For now just always force a modeset when the FB format changes to
> properly reconfigure all parts of the device for the new format.
>
> Signed-off-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
> ---
>  drivers/gpu/drm/mxsfb/lcdif_kms.c | 26 ++++++++++++++++++++------
>  1 file changed, 20 insertions(+), 6 deletions(-)

Reviewed-by: Liu Ying <victor.liu@xxxxxxx>




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