On Thu, Jan 28, 2021 at 05:59:46PM +0200, Ville Syrjala wrote: > From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> > > Currently we only explicitly power up the combo PHY lanes > for DP. The spec says we should do it for HDMI as well. > > Cc: stable@xxxxxxxxxxxxxxx > Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> > --- > drivers/gpu/drm/i915/display/intel_ddi.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c > index 88cc6e2fbe91..8fbeb8c24efb 100644 > --- a/drivers/gpu/drm/i915/display/intel_ddi.c > +++ b/drivers/gpu/drm/i915/display/intel_ddi.c > @@ -4337,6 +4337,8 @@ static void intel_enable_ddi_hdmi(struct intel_atomic_state *state, > intel_de_write(dev_priv, reg, val); > } > > + intel_ddi_power_up_lanes(encoder, crtc_state); > + Not sure if it matters, but the spec says to apply WA #1143 just before enabling DDI_BUF_CTL. > /* In HDMI/DVI mode, the port width, and swing/emphasis values > * are ignored so nothing special needs to be done besides > * enabling the port. > -- > 2.26.2 > > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
