Re: [PATCH 02/13] drm/display/dp_mst: drop has_audio from struct drm_dp_mst_port

["Nautiyal, Ankit K" <ankit.k.nautiyal@xxxxxxxxx>]

LGTM.

Only minor difference I can see, is an extra message log for CEA audio 
formats, while using drm_detect_monitor_audio.

I am wondering, whether drm_detect_monitor_audio can be removed.

Anyways the change looks good to me.

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@xxxxxxxxx>

On 4/21/2023 5:17 PM, Jani Nikula wrote:
> Caching the has_audio in struct drm_dp_mst_port seems odd, and oddly
> placed. Defer audio handling to drivers, and use the info from the
> connector display info. i915 was the only one using it anyway.
>
> Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
> ---
>   drivers/gpu/drm/display/drm_dp_mst_topology.c        | 2 +-
>   drivers/gpu/drm/i915/display/intel_display_debugfs.c | 4 ++--
>   drivers/gpu/drm/i915/display/intel_dp_mst.c          | 2 +-
>   include/drm/display/drm_dp_mst_helper.h              | 5 -----
>   4 files changed, 4 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/gpu/drm/display/drm_dp_mst_topology.c b/drivers/gpu/drm/display/drm_dp_mst_topology.c
> index 38dab76ae69e..a2b8732db0c8 100644
> --- a/drivers/gpu/drm/display/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/display/drm_dp_mst_topology.c
> @@ -4170,7 +4170,7 @@ struct edid *drm_dp_mst_get_edid(struct drm_connector *connector, struct drm_dp_
>   	else {
>   		edid = drm_get_edid(connector, &port->aux.ddc);
>   	}
> -	port->has_audio = drm_detect_monitor_audio(edid);
> +
>   	drm_dp_mst_topology_put_port(port);
>   	return edid;
>   }
> diff --git a/drivers/gpu/drm/i915/display/intel_display_debugfs.c b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
> index e72288662f02..77caed2552d0 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c
> +++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
> @@ -244,9 +244,9 @@ static void intel_dp_info(struct seq_file *m,
>   }
>   
>   static void intel_dp_mst_info(struct seq_file *m,
> -			      struct intel_connector *intel_connector)
> +			      struct intel_connector *connector)
>   {
> -	bool has_audio = intel_connector->port->has_audio;
> +	bool has_audio = connector->base.display_info.has_audio;
>   
>   	seq_printf(m, "\taudio support: %s\n", str_yes_no(has_audio));
>   }
> diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> index 2c49d9ab86a2..506118a13866 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> @@ -298,7 +298,7 @@ static bool intel_dp_mst_has_audio(const struct drm_connector_state *conn_state)
>   		to_intel_connector(conn_state->connector);
>   
>   	if (intel_conn_state->force_audio == HDMI_AUDIO_AUTO)
> -		return connector->port->has_audio;
> +		return connector->base.display_info.has_audio;
>   	else
>   		return intel_conn_state->force_audio == HDMI_AUDIO_ON;
>   }
> diff --git a/include/drm/display/drm_dp_mst_helper.h b/include/drm/display/drm_dp_mst_helper.h
> index 32c764fb9cb5..5be96a158ab2 100644
> --- a/include/drm/display/drm_dp_mst_helper.h
> +++ b/include/drm/display/drm_dp_mst_helper.h
> @@ -139,11 +139,6 @@ struct drm_dp_mst_port {
>   	 * that the EDID for all connectors is read immediately.
>   	 */
>   	struct edid *cached_edid;
> -	/**
> -	 * @has_audio: Tracks whether the sink connector to this port is
> -	 * audio-capable.
> -	 */
> -	bool has_audio;
>   
>   	/**
>   	 * @fec_capable: bool indicating if FEC can be supported up to that