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

[Ville Syrjälä]

On Thu, Aug 29, 2019 at 09:08:54AM +0000, Ser, Simon wrote:
> 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.

If the TC part is missing from the encoder name then it should be fixed.

> 
> > > +	}
> > > +
> > >  	switch (connector->connector_type) {
> > >  	case DRM_MODE_CONNECTOR_DisplayPort:
> > >  	case DRM_MODE_CONNECTOR_eDP:
> > > --
> > > 2.22.1
> > > 
> > > _______________________________________________
> > > Intel-gfx mailing list
> > > Intel-gfx at lists.freedesktop.org
> > > https://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Ville Syrjälä
Intel