[PATCH v5 08/17] drm/i915/hdcp: Enable Gen12 HDCP 1.4 DP MST support

[Anshuman Gupta]

On 2020-11-24 at 21:47:19 +0530, Ramalingam C wrote:
> On 2020-11-24 at 20:32:43 +0530, Anshuman Gupta wrote:
> > On 2020-11-24 at 19:50:17 +0530, Ramalingam C wrote:
> > > On 2020-11-11 at 11:50:42 +0530, Anshuman Gupta wrote:
> > > > Enable HDCP 1.4 over DP MST for Gen12.
> > > > 
> > > > Cc: Ramalingam C <ramalingam.c at intel.com>
> > > > Signed-off-by: Anshuman Gupta <anshuman.gupta at intel.com>
> > > > ---
> > > >  drivers/gpu/drm/i915/display/intel_dp_mst.c | 10 +++-------
> > > >  1 file changed, 3 insertions(+), 7 deletions(-)
> > > > 
> > > > diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> > > > index 16865b200062..f00e12fc83e8 100644
> > > > --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> > > > +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> > > > @@ -826,13 +826,9 @@ static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topolo
> > > >  	intel_attach_force_audio_property(connector);
> > > >  	intel_attach_broadcast_rgb_property(connector);
> > > >  
> > > > -
> > > > -	/* TODO: Figure out how to make HDCP work on GEN12+ */
> > > > -	if (INTEL_GEN(dev_priv) < 12) {
> > > Just a thought, shouldn't we enable for the platforms that we have
> > > tested HDCP? like <= 12. 
> > > 
> > > We could keep expanding the list supported.
> > thanks for comment, i will keep this as if (INTEL_GEN(dev_priv) < 12)
> I guess you meant <= 12.
:) yes it was typo
Thanks,
Anshuman.
> 
> Ram.
> > Thanks,
> > Anshuman
> > > 
> > > Ram.
> > > > -		ret = intel_dp_init_hdcp(dig_port, intel_connector);
> > > > -		if (ret)
> > > > -			DRM_DEBUG_KMS("HDCP init failed, skipping.\n");
> > > > -	}
> > > > +	ret = intel_dp_init_hdcp(dig_port, intel_connector);
> > > > +	if (ret)
> > > > +		drm_dbg_kms(&dev_priv->drm, "HDCP init failed, skipping.\n");
> > > >  
> > > >  	/*
> > > >  	 * Reuse the prop from the SST connector because we're
> > > > -- 
> > > > 2.26.2
> > > >