diff options
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_opregion.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_opregion.c b/drivers/gpu/drm/i915/display/intel_opregion.c index ce3d44cc2461..11de19da0948 100644 --- a/drivers/gpu/drm/i915/display/intel_opregion.c +++ b/drivers/gpu/drm/i915/display/intel_opregion.c @@ -932,9 +932,17 @@ int intel_opregion_setup(struct drm_i915_private *dev_priv) } if (mboxes & MBOX_SWSCI) { - drm_dbg(&dev_priv->drm, "SWSCI supported\n"); - opregion->swsci = base + OPREGION_SWSCI_OFFSET; - swsci_setup(dev_priv); + u8 major = opregion->header->over.major; + + if (major >= 3) { + drm_err(&dev_priv->drm, "SWSCI Mailbox #2 present for opregion v3.x, ignoring\n"); + } else { + if (major >= 2) + drm_dbg(&dev_priv->drm, "SWSCI Mailbox #2 present for opregion v2.x\n"); + drm_dbg(&dev_priv->drm, "SWSCI supported\n"); + opregion->swsci = base + OPREGION_SWSCI_OFFSET; + swsci_setup(dev_priv); + } } if (mboxes & MBOX_ASLE) { |