[Intel-gfx] [PATCH 1/3] drm/i915/debugfs: add dp mst info

[Jani Nikula]

On Mon, 28 Nov 2016, libin.yang at intel.com wrote:
> From: Libin Yang <libin.yang at intel.com>
>
> Add the DP MST info dump in debugfs.
>
> Signed-off-by: Libin Yang <libin.yang at intel.com>
> Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com>
> Reviewed-by: Lyude <cpaul at redhat.com>
> Signed-off-by: Rodrigo Vivi <rodrigo.vivi at intel.com>

I don't think Rodrigo's sob is proper here, even if he pushed the
original version of the patch that got later reverted.

Anyway,

Reviewed-by: Jani Nikula <jani.nikula at intel.com>

> ---
>  drivers/gpu/drm/i915/i915_debugfs.c | 19 ++++++++++++++++++-
>  1 file changed, 18 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
> index e7f731f..f5f88b2 100644
> --- a/drivers/gpu/drm/i915/i915_debugfs.c
> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> @@ -2877,6 +2877,20 @@ static void intel_dp_info(struct seq_file *m,
>  				&intel_dp->aux);
>  }
>  
> +static void intel_dp_mst_info(struct seq_file *m,
> +			  struct intel_connector *intel_connector)
> +{
> +	struct intel_encoder *intel_encoder = intel_connector->encoder;
> +	struct intel_dp_mst_encoder *intel_mst =
> +		enc_to_mst(&intel_encoder->base);
> +	struct intel_digital_port *intel_dig_port = intel_mst->primary;
> +	struct intel_dp *intel_dp = &intel_dig_port->dp;
> +	bool has_audio = drm_dp_mst_port_has_audio(&intel_dp->mst_mgr,
> +					intel_connector->port);
> +
> +	seq_printf(m, "\taudio support: %s\n", yesno(has_audio));
> +}
> +
>  static void intel_hdmi_info(struct seq_file *m,
>  			    struct intel_connector *intel_connector)
>  {
> @@ -2919,7 +2933,10 @@ static void intel_connector_info(struct seq_file *m,
>  	switch (connector->connector_type) {
>  	case DRM_MODE_CONNECTOR_DisplayPort:
>  	case DRM_MODE_CONNECTOR_eDP:
> -		intel_dp_info(m, intel_connector);
> +		if (intel_encoder->type == INTEL_OUTPUT_DP_MST)
> +			intel_dp_mst_info(m, intel_connector);
> +		else
> +			intel_dp_info(m, intel_connector);
>  		break;
>  	case DRM_MODE_CONNECTOR_LVDS:
>  		if (intel_encoder->type == INTEL_OUTPUT_LVDS)

-- 
Jani Nikula, Intel Open Source Technology Center