Re: [CI v3 2/6] drm/i915/hdmi: propagate errors from intel_hdmi_init_connector()

["Vodapalli, Ravi Kumar" <ravi.kumar.vodapalli@intel.com>]

On 12/30/2024 7:44 PM, Jani Nikula wrote:
> Propagate errors from intel_hdmi_init_connector() to be able to handle
> them at callers. This is similar to intel_dp_init_connector().
>
> Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
> Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
> Reported-and-tested-by: Sergey Senozhatsky <senozhatsky@chromium.org>
> Closes: https://lore.kernel.org/r/20241031105145.2140590-1-senozhatsky@chromium.org
> Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
> ---
>   drivers/gpu/drm/i915/display/intel_hdmi.c | 10 ++++++----
>   drivers/gpu/drm/i915/display/intel_hdmi.h |  2 +-
>   2 files changed, 7 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
> index f7b1768b279c..ed29dd0ccef0 100644
> --- a/drivers/gpu/drm/i915/display/intel_hdmi.c
> +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
> @@ -3039,7 +3039,7 @@ void intel_infoframe_init(struct intel_digital_port *dig_port)
>   	}
>   }
>   
> -void intel_hdmi_init_connector(struct intel_digital_port *dig_port,
> +bool intel_hdmi_init_connector(struct intel_digital_port *dig_port,
>   			       struct intel_connector *intel_connector)
>   {
>   	struct intel_display *display = to_intel_display(dig_port);
> @@ -3056,17 +3056,17 @@ void intel_hdmi_init_connector(struct intel_digital_port *dig_port,
>   		    intel_encoder->base.base.id, intel_encoder->base.name);
>   
>   	if (DISPLAY_VER(display) < 12 && drm_WARN_ON(dev, port == PORT_A))
> -		return;
> +		return false;
>   
>   	if (drm_WARN(dev, dig_port->max_lanes < 4,
>   		     "Not enough lanes (%d) for HDMI on [ENCODER:%d:%s]\n",
>   		     dig_port->max_lanes, intel_encoder->base.base.id,
>   		     intel_encoder->base.name))
> -		return;
> +		return false;
>   
>   	ddc_pin = intel_hdmi_ddc_pin(intel_encoder);
>   	if (!ddc_pin)
> -		return;
> +		return false;
>   
>   	drm_connector_init_with_ddc(dev, connector,
>   				    &intel_hdmi_connector_funcs,

drm_connector_init_with_ddc() function has return values, these should 
also be handled here.

> @@ -3111,6 +3111,8 @@ void intel_hdmi_init_connector(struct intel_digital_port *dig_port,
>   					   &conn_info);
>   	if (!intel_hdmi->cec_notifier)
>   		drm_dbg_kms(display->drm, "CEC notifier get failed\n");
> +
> +	return true;
>   }
>   
>   /*
> diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.h b/drivers/gpu/drm/i915/display/intel_hdmi.h
> index 466f48df8a74..38deaeb302a2 100644
> --- a/drivers/gpu/drm/i915/display/intel_hdmi.h
> +++ b/drivers/gpu/drm/i915/display/intel_hdmi.h
> @@ -22,7 +22,7 @@ struct intel_encoder;
>   struct intel_hdmi;
>   union hdmi_infoframe;
>   
> -void intel_hdmi_init_connector(struct intel_digital_port *dig_port,
> +bool intel_hdmi_init_connector(struct intel_digital_port *dig_port,
>   			       struct intel_connector *intel_connector);
>   bool intel_hdmi_compute_has_hdmi_sink(struct intel_encoder *encoder,
>   				      const struct intel_crtc_state *crtc_state,