Re: [PATCH v2 4/4] drm/panel-edp: Choose correct preferred mode

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Hi,

On Thu, Nov 2, 2023 at 3:13 PM Hsin-Yi Wang <hsinyi@xxxxxxxxxxxx> wrote:
>
> If a non generic edp-panel is under aux-bus, the mode read from edid would
> still be selected as preferred and results in multiple preferred modes,
> which is ambiguous.
>
> If a hard-coded mode is present, unset the preferred bit of the modes read
> from edid.
>
> Signed-off-by: Hsin-Yi Wang <hsinyi@xxxxxxxxxxxx>
> ---
> v1->v2: split patches from drm_modes.
> ---
>  drivers/gpu/drm/panel/panel-edp.c | 7 +++++--
>  1 file changed, 5 insertions(+), 2 deletions(-)

Reviewed-by: Douglas Anderson <dianders@xxxxxxxxxxxx>

Do you think this should have a "Fixes?" As per discussion on V1 [1],
this has probably been a bit broken from the beginning, though I guess
it only became a big deal after the AUX bus made it so that the panel
driver commonly had the EDID...

[1] https://lore.kernel.org/r/CAD=FV=WHzCdiYumsxUm_am+ALqq9SOOrjf=JYHqJuiKFB+Dnsw@xxxxxxxxxxxxxx




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