On Thu, Apr 14, 2022 at 06:06:44PM +0300, Jani Nikula wrote:
> If a NULL edid gets passed to drm_add_edid_modes(), we should probably
> also reset the display info.
One concern I had with this is resetting of eg. {width,height}_mm
which might have been populated by intel_panel_add_fixed_mode().
But I think that might already happen anyway through one of the
other codepaths that call drm_reset_display_info() so probably not
something that is made any worse by this patch.
IIRC at one point I tried to startd cleaning up the display_info
mess a bit but the patches got stuck in some silly bikeshed
so I gave up.
Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
>
> Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
> ---
> drivers/gpu/drm/drm_edid.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
> index 324ce8467915..4758e78fad82 100644
> --- a/drivers/gpu/drm/drm_edid.c
> +++ b/drivers/gpu/drm/drm_edid.c
> @@ -5721,6 +5721,7 @@ static int drm_edid_connector_update(struct drm_connector *connector,
> u32 quirks;
>
> if (edid == NULL) {
> + drm_reset_display_info(connector);
> clear_eld(connector);
> return 0;
> }
> --
> 2.30.2
--
Ville Syrjälä
Intel
