Re: [Intel-gfx] [PATCH 13/14] drm/i915: Give encoders useful names

["Ville Syrjälä" <ville.syrjala@linux.intel.com>]

On Wed, Dec 09, 2015 at 10:35:24AM +0200, Jani Nikula wrote:
> On Tue, 08 Dec 2015, ville.syrjala@linux.intel.com wrote:
> > From: Ville Syrjälä <ville.syrjala@linux.intel.com>
> >
> > Rather than let the core generate usless encoder names, let's pass in
> > something that actually identifies the piece of hardware we're dealing
> > with.
> >
> > Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> 
> > diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
> > index fff9a66c32a1..9b064a15a8e2 100644
> > --- a/drivers/gpu/drm/i915/intel_dsi.c
> > +++ b/drivers/gpu/drm/i915/intel_dsi.c
> > @@ -1111,6 +1111,19 @@ static const struct drm_connector_funcs intel_dsi_connector_funcs = {
> >  	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
> >  };
> >  
> > +static char intel_dsi_port_name(const struct drm_i915_private *dev_priv)
> > +{
> > +	switch (dev_priv->vbt.dsi.port) {
> > +	case DVO_PORT_MIPIA:
> > +		return 'A';
> > +	case DVO_PORT_MIPIC:
> > +		return 'C';
> > +	default:
> > +		MISSING_CASE(dev_priv->vbt.dsi.port);
> > +		return '?';
> > +	}
> > +}
> > +
> >  void intel_dsi_init(struct drm_device *dev)
> >  {
> >  	struct intel_dsi *intel_dsi;
> > @@ -1153,7 +1166,7 @@ void intel_dsi_init(struct drm_device *dev)
> >  	connector = &intel_connector->base;
> >  
> >  	drm_encoder_init(dev, encoder, &intel_dsi_funcs, DRM_MODE_ENCODER_DSI,
> > -			 NULL);
> > +			 "MIPI %c", intel_dsi_port_name(dev_priv));
> 
> Did you plant that on purpose to tick me off? From here on out I'll
> insist we refer to VESA, embedded VESA, and VESA MST. Only half
> kidding. :/

I was thinking it should match what the spec calls it in most cases
(which is why I almost left out the space too, but then I figured it's
easier to read with the space). I could make it "MIPI [sic] %c" :P

But, if you prefer to call it "DSI %c" instead, I can change it.

> 
> BR,
> Jani.
> 
> 
> >  
> >  	intel_encoder->compute_config = intel_dsi_compute_config;
> >  	intel_encoder->pre_enable = intel_dsi_pre_enable;
> 
> -- 
> Jani Nikula, Intel Open Source Technology Center

-- 
Ville Syrjälä
Intel OTC
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