drm/i915: add support for LynxPoint PCH

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

2 files changed, 6 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 6d7548d1f94b..0efc02e4e7ce 100644
--- 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);
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index ffd5d26b6783..d7a5146796e7 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -294,6 +294,7 @@ enum no_fbc_reason {
 enum intel_pch {
         PCH_IBX,        /* Ibexpeak PCH */
         PCH_CPT,        /* Cougarpoint PCH */
+        PCH_LPT,        /* Lynxpoint PCH */
 };
 
 #define QUIRK_PIPEA_FORCE (1<<0)
@@ -1058,6 +1059,7 @@ struct drm_i915_file_private {
 #define HAS_PIPE_CONTROL(dev) (INTEL_INFO(dev)->gen >= 5)
 
 #define INTEL_PCH_TYPE(dev) (((struct drm_i915_private *)(dev)->dev_private)->pch_type)
+#define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)