[Intel-gfx] [PATCH v2] drm/i915: add port info to debugfs

[Ser, Simon]

On Wed, 2019-08-28 at 19:40 +0300, Ville Syrjälä wrote:
> On Fri, Aug 23, 2019 at 12:49:46PM +0300, Simon Ser wrote:
> > This patch adds a line with the port name to connectors in
> > debugfs/i915_debug_info. If the port is Type-C, the Type-C port number is
> > printed too.
> > 
> > Signed-off-by: Simon Ser <simon.ser at intel.com>
> > Cc: Imre Deak <imre.deak at intel.com>
> > Cc: Manasi Navare <nanasi.d.navare at intel.com>
> > Reviewed-by: Imre Deak <imre.deak at intel.com>
> > ---
> > 
> > Resending v2 to the correct mailing list.
> > 
> >  drivers/gpu/drm/i915/i915_debugfs.c | 10 ++++++++++
> >  1 file changed, 10 insertions(+)
> > 
> > diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
> > index b39226d7f8d2..4ba508c954f8 100644
> > --- a/drivers/gpu/drm/i915/i915_debugfs.c
> > +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> > @@ -2557,9 +2557,11 @@ static void intel_lvds_info(struct seq_file *m,
> >  static void intel_connector_info(struct seq_file *m,
> >  				 struct drm_connector *connector)
> >  {
> > +	struct drm_i915_private *i915 = to_i915(connector->dev);
> >  	struct intel_connector *intel_connector = to_intel_connector(connector);
> >  	struct intel_encoder *intel_encoder = intel_connector->encoder;
> >  	struct drm_display_mode *mode;
> > +	enum tc_port tc_port;
> > 
> >  	seq_printf(m, "connector %d: type %s, status: %s\n",
> >  		   connector->base.id, connector->name,
> > @@ -2578,6 +2580,14 @@ static void intel_connector_info(struct seq_file *m,
> >  	if (!intel_encoder)
> >  		return;
> > 
> > +	if (intel_encoder->port != PORT_NONE) {
> > +		seq_printf(m, "\tport: %c", port_name(intel_encoder->port));
> > +		tc_port = intel_port_to_tc(i915, intel_encoder->port);
> > +		if (tc_port != PORT_TC_NONE)
> > +			seq_printf(m, "/TC#%d", tc_port + 1);
> > +		seq_printf(m, "\n");
> 
> Maybe just print encoder->name instead?

It seems that for DisplayPort connectors, the encoder->name will be set
to "DP <port name>". This misses the Type-C part, and we already expose
the connector type.

> > +	}
> > +
> >  	switch (connector->connector_type) {
> >  	case DRM_MODE_CONNECTOR_DisplayPort:
> >  	case DRM_MODE_CONNECTOR_eDP:
> > --
> > 2.22.1
> > 
> > _______________________________________________
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> > Intel-gfx at lists.freedesktop.org
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