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

Paulo Zanoni
2012-11-12T20:54:19Z

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