[PATCH v2 2/2] i915: content-type property for HDMI connector

[Hans Verkuil]

On 04/18/18 18:51, StanLis wrote:
> From: Stanislav Lisovskiy <stanislav.lisovskiy at intel.com>
> 
> Added encoding of drm content_type property from
> drm_connector_state within AVI infoframe in order to properly handle
> external HDMI TV content-type setting.
> 
> Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy at intel.com>
> ---
>  drivers/gpu/drm/i915/intel_atomic.c | 1 +
>  drivers/gpu/drm/i915/intel_hdmi.c   | 3 +++
>  2 files changed, 4 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/intel_atomic.c b/drivers/gpu/drm/i915/intel_atomic.c
> index 40285d1b91b7..61ddb5871d8a 100644
> --- a/drivers/gpu/drm/i915/intel_atomic.c
> +++ b/drivers/gpu/drm/i915/intel_atomic.c
> @@ -124,6 +124,7 @@ int intel_digital_connector_atomic_check(struct drm_connector *conn,
>  	if (new_conn_state->force_audio != old_conn_state->force_audio ||
>  	    new_conn_state->broadcast_rgb != old_conn_state->broadcast_rgb ||
>  	    new_conn_state->base.picture_aspect_ratio != old_conn_state->base.picture_aspect_ratio ||
> +	    new_conn_state->base.content_type != old_conn_state->base.content_type ||
>  	    new_conn_state->base.scaling_mode != old_conn_state->base.scaling_mode)
>  		crtc_state->mode_changed = true;
>  
> diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
> index ee929f31f7db..5cc72da9c086 100644
> --- a/drivers/gpu/drm/i915/intel_hdmi.c
> +++ b/drivers/gpu/drm/i915/intel_hdmi.c
> @@ -491,6 +491,8 @@ static void intel_hdmi_set_avi_infoframe(struct drm_encoder *encoder,
>  					   intel_hdmi->rgb_quant_range_selectable,
>  					   is_hdmi2_sink);
>  
> +	frame.avi.content_type = connector->state->content_type;
> +

Is the ITC bit set in the AVI InfoFrame? The content type bits are only valid if
the ITC bit is 1. And if there is no content type property, then ITC should be 0.

>  	/* TODO: handle pixel repetition for YCBCR420 outputs */
>  	intel_write_infoframe(encoder, crtc_state, &frame);
>  }
> @@ -2065,6 +2067,7 @@ intel_hdmi_add_properties(struct intel_hdmi *intel_hdmi, struct drm_connector *c
>  	intel_attach_force_audio_property(connector);
>  	intel_attach_broadcast_rgb_property(connector);
>  	intel_attach_aspect_ratio_property(connector);
> +	drm_connector_attach_content_type_property(connector);
>  	connector->state->picture_aspect_ratio = HDMI_PICTURE_ASPECT_NONE;
>  }
>  
> 

Regards,

	Hans