[Intel-gfx] [v3] drm/i915: Detect if MIPI panel based on VBT and initialize only if present

[Damien Lespiau]

On Tue, May 27, 2014 at 05:31:42PM +0300, Ville Syrjälä wrote:
> On Tue, May 27, 2014 at 03:17:15PM +0100, Damien Lespiau wrote:
> > Sorry to be such a bore but:
> > 
> > On Tue, May 27, 2014 at 07:33:59PM +0530, Shobhit Kumar wrote:
> > > --- a/drivers/gpu/drm/i915/intel_dsi.c
> > > +++ b/drivers/gpu/drm/i915/intel_dsi.c
> > > @@ -660,6 +660,10 @@ bool intel_dsi_init(struct drm_device *dev)
> > >  
> > >  	DRM_DEBUG_KMS("\n");
> > >  
> > > +	/* There is no detection method for MIPI so rely on VBT */
> > > +	if (!dev_priv->vbt.has_mipi)
> > > +		return false;
> > > +
> > 
> > Huum, if we can intel_dsi_init() on VLV, but we don't have a MIPI panel,
> > shouldn't return true here? ie. "intel_dsi_init() was successful, we
> > just don't have a MIPI panel.
> 
> Why does it even have a return value? Either it added the
> connector and encoder or it didn't.

That's even better. I guess we can have a patch on top once this one has
landed.

-- 
Damien