[PATCH v2 1/4] drm/i915/display: Handle MST connector in intel_attached_dp

[Imre Deak]

On Fri, Sep 06, 2024 at 10:00:30AM +0300, Jouni Högander wrote:
> Connector->encoder might be null for MST connector. Take this into account
> in intel_attached_dp.
> 
> Signed-off-by: Jouni Högander <jouni.hogander at intel.com>

Reviewed-by: Imre Deak <imre.deak at intel.com>

> ---
>  drivers/gpu/drm/i915/display/intel_display_types.h | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
> index 733de5edcfdb3..000ab373c8879 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_types.h
> +++ b/drivers/gpu/drm/i915/display/intel_display_types.h
> @@ -1913,7 +1913,10 @@ static inline struct intel_dp *enc_to_intel_dp(struct intel_encoder *encoder)
>  
>  static inline struct intel_dp *intel_attached_dp(struct intel_connector *connector)
>  {
> -	return enc_to_intel_dp(intel_attached_encoder(connector));
> +	if (connector->mst_port)
> +		return connector->mst_port;
> +	else
> +		return enc_to_intel_dp(intel_attached_encoder(connector));
>  }
>  
>  static inline bool intel_encoder_is_dp(struct intel_encoder *encoder)
> -- 
> 2.34.1
>