Re: [PATCH 9/9] drm/i915: Enable upfront link training support for HSW/BDW

[Manasi Navare <manasi.d.navare@intel.com>]

On Sat, Aug 20, 2016 at 11:46:19AM +0200, David Weinehall wrote:
> On Fri, Aug 19, 2016 at 04:33:49PM -0700, Manasi Navare wrote:
> > Get the PLLs for HSW/BDW using the platform specific function
> > and add hooks for enabling upfront link training on HSW and BDW.
> > 
> > Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
> > ---
> >  drivers/gpu/drm/i915/intel_ddi.c | 2 ++
> >  drivers/gpu/drm/i915/intel_dp.c  | 4 +++-
> >  2 files changed, 5 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
> > index ef63b4b..1d3ab8a 100644
> > --- a/drivers/gpu/drm/i915/intel_ddi.c
> > +++ b/drivers/gpu/drm/i915/intel_ddi.c
> > @@ -2410,6 +2410,8 @@ intel_ddi_get_link_dpll(struct intel_dp *intel_dp, int clock)
> >  		}
> >  	} else if (IS_SKYLAKE(dev_priv)) {
> >  		pll = skl_find_link_pll(dev_priv, clock);
> > +	} else if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) {
> > +		pll = hsw_ddi_dp_get_dpll(encoder, clock);
> >  	}
> >  	return pll;
> >  }
> > diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
> > index fe156fb..a1cea4d 100644
> > --- a/drivers/gpu/drm/i915/intel_dp.c
> > +++ b/drivers/gpu/drm/i915/intel_dp.c
> > @@ -5757,8 +5757,10 @@ intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
> >  
> >  	/* Initialize upfront link training vfunc for DP */
> >  	if (intel_encoder->type != INTEL_OUTPUT_EDP) {
> > -		if (IS_BROXTON(dev) || IS_SKYLAKE(dev))
> > +		if (IS_BROXTON(dev) || IS_SKYLAKE(dev) ||
> > +		    IS_BROADWELL(dev) || IS_HASWELL(dev))
> >  			intel_dp->upfront_link_train = intel_ddi_upfront_link_train;
> > +
> >  	}
> >  
> >  	/* eDP only on port B and/or C on vlv/chv */
> 
> s/dev/dev_priv/ in feature macros.  To keep the diff down to a minimum
> you can ignore the rest of them, but I certainly wouldn't mind if
> you cleanup them all (and change INTEL_INFO()->gen to INTEL_GEN()).
> 
> 
> Regards: David Weinehall

Thanks for reviewing this David. I will change the macros to use dev in
place of dev_priv in the usages in all these patches.
Rest of the cleanup should be a separate patch and not part fo this patch series.

Regards
Manasi


> -- 
>  /) David Weinehall <tao@acc.umu.se> /) Northern lights wander      (\
> //  Maintainer of the v2.0 kernel   //  Dance across the winter sky //
> \)  http://www.acc.umu.se/~tao/    (/   Full colour fire           (/
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