From: Ville Syrjälä <ville.syrj...@linux.intel.com> commit fad9bae9ee5d578afbe6380c82e4715efaddf118 upstream.
Currently we only explicitly power up the combo PHY lanes for DP. The spec says we should do it for HDMI as well. Cc: sta...@vger.kernel.org Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210128155948.13678-3-ville.syrj...@linux.intel.com Reviewed-by: Imre Deak <imre.d...@intel.com> (cherry picked from commit 1e0cb7bef35f0d1aed383bf69a209df218b807c9) Signed-off-by: Jani Nikula <jani.nik...@intel.com> Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org> --- drivers/gpu/drm/i915/display/intel_ddi.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -3936,6 +3936,8 @@ static void intel_enable_ddi_hdmi(struct intel_de_write(dev_priv, reg, val); } + intel_ddi_power_up_lanes(encoder, crtc_state); + /* In HDMI/DVI mode, the port width, and swing/emphasis values * are ignored so nothing special needs to be done besides * enabling the port.
