[Intel-gfx] [PATCH] drm/i915/icl: Fix signal_levels

[Rodrigo Vivi]

On Wed, Oct 17, 2018 at 03:09:54PM -0700, Manasi Navare wrote:
> On Wed, Oct 17, 2018 at 02:56:52PM -0700, Rodrigo Vivi wrote:
> > Since when it was introduced we forgot to add
> > this case so ICL was using a wrong signal_levels
> > as reference.
> > 
> > Fixes: fb5c8e9d4350 ("drm/i915/icl: Implement voltage swing programming sequence for Combo PHY DDI")
> > Cc: José Roberto de Souza <jose.souza at intel.com>
> > Cc: Manasi Navare <manasi.d.navare at intel.com>
> > Signed-off-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
> 
> yep this was missed indeed. The bxt_signal_levels() has a case for IS_ICELAKE() but
> that was never getting called. Thanks for fixing this.
> 
> Reviewed-by: Manasi Navare <manasi.d.navare at intel.com>

pushed to dinq, thanks

> 
> Manasi
> 
> > ---
> >  drivers/gpu/drm/i915/intel_dp.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
> > index 1f098e509143..3384a9bbdafd 100644
> > --- a/drivers/gpu/drm/i915/intel_dp.c
> > +++ b/drivers/gpu/drm/i915/intel_dp.c
> > @@ -3790,7 +3790,7 @@ intel_dp_set_signal_levels(struct intel_dp *intel_dp)
> >  	uint32_t signal_levels, mask = 0;
> >  	uint8_t train_set = intel_dp->train_set[0];
> >  
> > -	if (IS_GEN9_LP(dev_priv) || IS_CANNONLAKE(dev_priv)) {
> > +	if (IS_GEN9_LP(dev_priv) || INTEL_GEN(dev_priv) >= 10) {
> >  		signal_levels = bxt_signal_levels(intel_dp);
> >  	} else if (HAS_DDI(dev_priv)) {
> >  		signal_levels = ddi_signal_levels(intel_dp);
> > -- 
> > 2.19.1
> >