[Intel-gfx] [PATCH v2 3/4] drm/i915/dp: Trigger modeset if master_crtc or slaves bitmask changes

[Manasi Navare]

On Wed, Jun 12, 2019 at 10:32:04AM +0200, Maarten Lankhorst wrote:
> Op 23-04-2019 om 17:49 schreef Manasi Navare:
> > Add the comparison between the current state and new_crtc_state for
> > newly added master_crtc pointer and slave bitmask so that
> > if any of those change then the curernt master-slave links have
> > changed and we need to reconfigure the transcoder port sync register
> > and hence trigger a full modeset.
> >
> > Suggested-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> > Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
> > Cc: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
> > Cc: Matt Roper <matthew.d.roper at intel.com>
> > Signed-off-by: Manasi Navare <manasi.d.navare at intel.com>
> > ---
> >  drivers/gpu/drm/i915/intel_display.c | 5 +++++
> >  1 file changed, 5 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> > index 81e8cb9fe221..4bd23e61c6fd 100644
> > --- a/drivers/gpu/drm/i915/intel_display.c
> > +++ b/drivers/gpu/drm/i915/intel_display.c
> > @@ -12524,6 +12524,11 @@ intel_pipe_config_compare(struct drm_i915_private *dev_priv,
> >  	PIPE_CONF_CHECK_INFOFRAME(spd);
> >  	PIPE_CONF_CHECK_INFOFRAME(hdmi);
> >  
> > +	if (INTEL_GEN(dev_priv) >= 11) {
> > +		PIPE_CONF_CHECK_I(trans_port_sync_slaves);
> > +		PIPE_CONF_CHECK_P(master_crtc);
> > +	}
> > +
> >  #undef PIPE_CONF_CHECK_X
> >  #undef PIPE_CONF_CHECK_I
> >  #undef PIPE_CONF_CHECK_BOOL
> 
> Should probably be merged with patch 1/4

Yes in my next revision will combine this into patch 1, also need another patch for
HW state readout, that should be a separate patch though right?

Manasi
>