[PATCH] drm/i915: add LynxPoint-LP PCH ID

[Paulo Zanoni <przanoni@gmail.com>]

From: Wei Shun Chang <wei.shun.chang@intel.com>

[pzanoni: rebase, print it's an LP PCH]

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
---
 drivers/gpu/drm/i915/i915_drv.c |    6 ++++++
 1 file changed, 6 insertions(+)


I can't test the patch since I don't have the LP PCH.


diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index f8ba5fe..418d17c 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -394,6 +394,7 @@ MODULE_DEVICE_TABLE(pci, pciidlist);
 #define INTEL_PCH_CPT_DEVICE_ID_TYPE	0x1c00
 #define INTEL_PCH_PPT_DEVICE_ID_TYPE	0x1e00
 #define INTEL_PCH_LPT_DEVICE_ID_TYPE	0x8c00
+#define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE	0x9c00
 
 void intel_detect_pch(struct drm_device *dev)
 {
@@ -433,6 +434,11 @@ void intel_detect_pch(struct drm_device *dev)
 				dev_priv->num_pch_pll = 0;
 				DRM_DEBUG_KMS("Found LynxPoint PCH\n");
 				WARN_ON(!IS_HASWELL(dev));
+			} else if (id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) {
+				dev_priv->pch_type = PCH_LPT;
+				dev_priv->num_pch_pll = 0;
+				DRM_DEBUG_KMS("Found LynxPoint LP PCH\n");
+				WARN_ON(!IS_HASWELL(dev));
 			}
 			BUG_ON(dev_priv->num_pch_pll > I915_NUM_PLLS);
 		}
-- 
1.7.10.4