diff options
| -rw-r--r-- | drivers/gpu/drm/i915/intel_runtime_pm.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c index ff7f67eb427a..f945db6ea420 100644 --- a/drivers/gpu/drm/i915/intel_runtime_pm.c +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c @@ -843,6 +843,14 @@ static void gen9_dc_off_power_well_enable(struct drm_i915_private *dev_priv, if (IS_GEN9_LP(dev_priv)) bxt_verify_ddi_phy_power_wells(dev_priv); + + if (INTEL_GEN(dev_priv) >= 11) + /* + * DMC retains HW context only for port A, the other combo + * PHY's HW context for port B is lost after DC transitions, + * so we need to restore it manually. + */ + icl_combo_phys_init(dev_priv); } static void gen9_dc_off_power_well_disable(struct drm_i915_private *dev_priv, |