From: Ville Syrjälä ville.syrjala@linux.intel.com
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@vger.kernel.org Signed-off-by: Ville Syrjälä ville.syrjala@linux.intel.com --- 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); + /* In HDMI/DVI mode, the port width, and swing/emphasis values * are ignored so nothing special needs to be done besides * enabling the port.