diff options
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pch.c | 6 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pch.h | 4 |
2 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_pch.c b/drivers/gpu/drm/i915/intel_pch.c index c668e99eb2e4..6c97192e9ca8 100644 --- a/drivers/gpu/drm/i915/intel_pch.c +++ b/drivers/gpu/drm/i915/intel_pch.c @@ -188,6 +188,12 @@ void intel_detect_pch(struct drm_i915_private *dev_priv) { struct pci_dev *pch = NULL; + /* DG1 has south engine display on the same PCI device */ + if (IS_DG1(dev_priv)) { + dev_priv->pch_type = PCH_DG1; + return; + } + /* * The reason to probe ISA bridge instead of Dev31:Fun0 is to * make graphics device passthrough work easy for VMM, that only diff --git a/drivers/gpu/drm/i915/intel_pch.h b/drivers/gpu/drm/i915/intel_pch.h index 3053d1ce398b..06d2cd50af0b 100644 --- a/drivers/gpu/drm/i915/intel_pch.h +++ b/drivers/gpu/drm/i915/intel_pch.h @@ -26,6 +26,9 @@ enum intel_pch { PCH_JSP, /* Jasper Lake PCH */ PCH_MCC, /* Mule Creek Canyon PCH */ PCH_TGP, /* Tiger Lake PCH */ + + /* Fake PCHs, functionality handled on the same PCI dev */ + PCH_DG1 = 1024, }; #define INTEL_PCH_DEVICE_ID_MASK 0xff80 @@ -56,6 +59,7 @@ enum intel_pch { #define INTEL_PCH_TYPE(dev_priv) ((dev_priv)->pch_type) #define INTEL_PCH_ID(dev_priv) ((dev_priv)->pch_id) +#define HAS_PCH_DG1(dev_priv) (INTEL_PCH_TYPE(dev_priv) == PCH_DG1) #define HAS_PCH_JSP(dev_priv) (INTEL_PCH_TYPE(dev_priv) == PCH_JSP) #define HAS_PCH_MCC(dev_priv) (INTEL_PCH_TYPE(dev_priv) == PCH_MCC) #define HAS_PCH_TGP(dev_priv) (INTEL_PCH_TYPE(dev_priv) == PCH_TGP) |