On Thu, Sep 14, 2023 at 10:26:54PM +0300, Imre Deak wrote: > Atm the DSC PPS SDP will stay enabled after enabling and disabling DSC. > This leaves an output blank after switching off DSC on it. Make sure the > SDP is disabled for an uncompressed output. > > v2: > - Disable the SDP already during output disabling. (Ville) Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@xxxxxxxxx> > > Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> > Signed-off-by: Imre Deak <imre.deak@xxxxxxxxx> > --- > drivers/gpu/drm/i915/display/intel_dp.c | 5 ++++- > drivers/gpu/drm/i915/display/intel_dp_mst.c | 5 ++--- > 2 files changed, 6 insertions(+), 4 deletions(-) > > diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c > index 03010accc1c7f..e942eb95d688f 100644 > --- a/drivers/gpu/drm/i915/display/intel_dp.c > +++ b/drivers/gpu/drm/i915/display/intel_dp.c > @@ -4027,7 +4027,10 @@ void intel_dp_set_infoframes(struct intel_encoder *encoder, > VIDEO_DIP_ENABLE_SPD_HSW | VIDEO_DIP_ENABLE_DRM_GLK; > u32 val = intel_de_read(dev_priv, reg) & ~dip_enable; > > - /* TODO: Add DSC case (DIP_ENABLE_PPS) */ > + /* TODO: Sanitize DSC enabling wrt. intel_dsc_dp_pps_write(). */ > + if (!enable && HAS_DSC(dev_priv)) > + val &= ~VDIP_ENABLE_PPS; > + > /* When PSR is enabled, this routine doesn't disable VSC DIP */ > if (!crtc_state->has_psr) > val &= ~VIDEO_DIP_ENABLE_VSC_HSW; > diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c > index 19548242fa0f2..a38a0e6da01bf 100644 > --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c > +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c > @@ -662,9 +662,8 @@ static void intel_mst_post_disable_dp(struct intel_atomic_state *state, > * BSpec 4287: disable DIP after the transcoder is disabled and before > * the transcoder clock select is set to none. > */ > - if (last_mst_stream) > - intel_dp_set_infoframes(&dig_port->base, false, > - old_crtc_state, NULL); > + intel_dp_set_infoframes(&dig_port->base, false, > + old_crtc_state, NULL); > /* > * From TGL spec: "If multi-stream slave transcoder: Configure > * Transcoder Clock Select to direct no clock to the transcoder" > -- > 2.37.2 >
