Re: [PATCH 09/11] drm/edid: Unconfuse preferred timing stuff a bit

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On Sat, 27 Aug 2022, Ville Syrjala <ville.syrjala@xxxxxxxxxxxxxxx> wrote:
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
>
> For EDID 1.4 the first detailed timing is always preferred,
> for older EDIDs there was a feature flag to indicate the same.
> While correct, the code setting that up is rather confusing.
> Restate it in a slightly more straightforward manner.
>
> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

Reviewed-by: Jani Nikula <jani.nikula@xxxxxxxxx>

> ---
>  drivers/gpu/drm/drm_edid.c | 7 ++++---
>  1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
> index c1c85b9e1208..0fe06e5fd6e0 100644
> --- a/drivers/gpu/drm/drm_edid.c
> +++ b/drivers/gpu/drm/drm_edid.c
> @@ -3952,13 +3952,14 @@ static int add_detailed_modes(struct drm_connector *connector,
>  	struct detailed_mode_closure closure = {
>  		.connector = connector,
>  		.drm_edid = drm_edid,
> -		.preferred = true,
>  		.quirks = quirks,
>  	};
>  
> -	if (closure.preferred && !version_greater(drm_edid, 1, 3))
> +	if (version_greater(drm_edid, 1, 3))
> +		closure.preferred = true; /* first detailed timing is always preferred */
> +	else
>  		closure.preferred =
> -		    (drm_edid->edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING);
> +			drm_edid->edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING;
>  
>  	drm_for_each_detailed_block(drm_edid, do_detailed_mode, &closure);

-- 
Jani Nikula, Intel Open Source Graphics Center




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