Re: [Intel-gfx] [PATCH 8/9] drm/i915/bios: check port presence based on child device

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

On Fri, Jan 17, 2020 at 05:13:25PM +0200, Ville Syrjälä wrote:
> On Fri, Jan 17, 2020 at 05:12:38PM +0200, Ville Syrjälä wrote:
> > On Fri, Jan 17, 2020 at 04:29:28PM +0200, Jani Nikula wrote:
> > > Affects only two calls in output setup, and ddi init will check the
> > > features in more fine grained way.
> > > 
> > > This will make future changes easier.
> > > 
> > > Signed-off-by: Jani Nikula <jani.nikula@intel.com>
> > > ---
> > >  drivers/gpu/drm/i915/display/intel_bios.c | 4 +---
> > >  1 file changed, 1 insertion(+), 3 deletions(-)
> > > 
> > > diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
> > > index 4c69253739ec..70fb87e7afb6 100644
> > > --- a/drivers/gpu/drm/i915/display/intel_bios.c
> > > +++ b/drivers/gpu/drm/i915/display/intel_bios.c
> > > @@ -2236,9 +2236,7 @@ bool intel_bios_is_port_present(struct drm_i915_private *dev_priv, enum port por
> > >  		const struct ddi_vbt_port_info *port_info =
> > >  			&dev_priv->vbt.ddi_port_info[port];
> > >  
> > > -		return port_info->supports_dp ||
> > > -		       port_info->supports_dvi ||
> > > -		       port_info->supports_hdmi;
> > > +		return port_info->child;
> > 
> > Pondering what happens if there's a non-DP/DVI/HDMI port declared in the
> > VBT... I guess those should not have their dvo port set to anything we
> > accept?
> 
> Umm, no. We accept DVO_PORT_CRT as PORT_E.

Maybe it doesn't matter though. Hopefully no VBT has that on skl+,
and on hsw/bdw the current CRT init code doesn't seem to care
what this says.

> 
> > 
> > >  	}
> > >  
> > >  	/* FIXME maybe deal with port A as well? */
> > > -- 
> > > 2.20.1
> > > 
> > > _______________________________________________
> > > Intel-gfx mailing list
> > > Intel-gfx@lists.freedesktop.org
> > > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
> > 
> > -- 
> > Ville Syrjälä
> > Intel
> 
> -- 
> Ville Syrjälä
> Intel

-- 
Ville Syrjälä
Intel
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