drm/i915: add support for LynxPoint PCH

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / i915 / i915_drv.c

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 6d7548d1f94bfe4af42a96476124599b884bcbfe..0efc02e4e7ce5a9d5f016b75de314729a123fea1 100644 (file)
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -351,6 +351,7 @@ MODULE_DEVICE_TABLE(pci, pciidlist);
 #define INTEL_PCH_IBX_DEVICE_ID_TYPE   0x3b00
 #define INTEL_PCH_CPT_DEVICE_ID_TYPE   0x1c00
 #define INTEL_PCH_PPT_DEVICE_ID_TYPE   0x1e00
+#define INTEL_PCH_LPT_DEVICE_ID_TYPE   0x8c00
 
 void intel_detect_pch(struct drm_device *dev)
 {
@@ -379,6 +380,9 @@ void intel_detect_pch(struct drm_device *dev)
                                /* PantherPoint is CPT compatible */
                                dev_priv->pch_type = PCH_CPT;
                                DRM_DEBUG_KMS("Found PatherPoint PCH\n");
+                       } else if (id == INTEL_PCH_LPT_DEVICE_ID_TYPE) {
+                               dev_priv->pch_type = PCH_LPT;
+                               DRM_DEBUG_KMS("Found LynxPoint PCH\n");
                        }
                }
                pci_dev_put(pch);