Re: [PATCH v7 14/22] drm/edid: merge ELD handling to update_display_info()

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On Wed, Jan 04, 2023 at 12:05:29PM +0200, Jani Nikula wrote:
> Simplify display info update by merging ELD handling as well as clearing
> of the data in update_display_info().
> 
> The connector->eld really should be moved under display_info altogether,
> but that's for another time.
> 
> Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>

Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

> ---
>  drivers/gpu/drm/drm_edid.c | 28 +++++++++++++---------------
>  1 file changed, 13 insertions(+), 15 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
> index 6bc0432046c8..810a5fca398a 100644
> --- a/drivers/gpu/drm/drm_edid.c
> +++ b/drivers/gpu/drm/drm_edid.c
> @@ -5489,8 +5489,6 @@ static void drm_edid_to_eld(struct drm_connector *connector,
>  	int total_sad_count = 0;
>  	int mnl;
>  
> -	clear_eld(connector);
> -
>  	if (!drm_edid)
>  		return;
>  
> @@ -6465,9 +6463,15 @@ static void update_display_info(struct drm_connector *connector,
>  				const struct drm_edid *drm_edid)
>  {
>  	struct drm_display_info *info = &connector->display_info;
> -	const struct edid *edid = drm_edid->edid;
> +	const struct edid *edid;
>  
>  	drm_reset_display_info(connector);
> +	clear_eld(connector);
> +
> +	if (!drm_edid)
> +		return;
> +
> +	edid = drm_edid->edid;
>  
>  	info->quirks = edid_get_quirks(drm_edid);
>  
> @@ -6550,6 +6554,9 @@ static void update_display_info(struct drm_connector *connector,
>  
>  	if (info->quirks & EDID_QUIRK_CAP_DSC_15BPP)
>  		info->max_dsc_bpp = 15;
> +
> +	/* Depends on info->cea_rev set by drm_parse_cea_ext() above */
> +	drm_edid_to_eld(connector, drm_edid);
>  }
>  
>  static struct drm_display_mode *drm_mode_displayid_detailed(struct drm_device *dev,
> @@ -6650,12 +6657,6 @@ static int _drm_edid_connector_update(struct drm_connector *connector,
>  	struct drm_display_info *info = &connector->display_info;
>  	int num_modes = 0;
>  
> -	if (!drm_edid) {
> -		drm_reset_display_info(connector);
> -		clear_eld(connector);
> -		return 0;
> -	}
> -
>  	/*
>  	 * CEA-861-F adds ycbcr capability map block, for HDMI 2.0 sinks.
>  	 * To avoid multiple parsing of same block, lets parse that map
> @@ -6663,8 +6664,8 @@ static int _drm_edid_connector_update(struct drm_connector *connector,
>  	 */
>  	update_display_info(connector, drm_edid);
>  
> -	/* Depends on info->cea_rev set by update_display_info() above */
> -	drm_edid_to_eld(connector, drm_edid);
> +	if (!drm_edid)
> +		return 0;
>  
>  	/*
>  	 * EDID spec says modes should be preferred in this order:
> @@ -6801,10 +6802,7 @@ static int _drm_connector_update_edid_property(struct drm_connector *connector,
>  	 * that it seems better to duplicate it rather than attempt to ensure
>  	 * some arbitrary ordering of calls.
>  	 */
> -	if (drm_edid)
> -		update_display_info(connector, drm_edid);
> -	else
> -		drm_reset_display_info(connector);
> +	update_display_info(connector, drm_edid);
>  
>  	_drm_update_tile_info(connector, drm_edid);
>  
> -- 
> 2.34.1

-- 
Ville Syrjälä
Intel



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