[Intel-gfx] [PATCH 08/13] drm/i915/cfl: Coffee Lake uses CNP PCH.

[Rodrigo Vivi]

So let's force it on the virtual detection.

Also it is still the only silicon for now on this PCH,
so WARN otherwise.

Signed-off-by: Rodrigo Vivi <rodrigo.v...@intel.com>
---
 drivers/gpu/drm/i915/i915_drv.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 90b646c..2f618f7 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -139,6 +139,8 @@ static enum intel_pch intel_virt_detect_pch(struct 
drm_i915_private *dev_priv)
        } else if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) {
                ret = PCH_SPT;
                DRM_DEBUG_KMS("Assuming SunrisePoint PCH\n");
+       } else if (IS_COFFEELAKE(dev_priv)) {
+               ret = PCH_CNP;
        }
 
        return ret;
@@ -222,9 +224,11 @@ static void intel_detect_pch(struct drm_i915_private 
*dev_priv)
                        } else if (id == INTEL_PCH_CNP_DEVICE_ID_TYPE) {
                                dev_priv->pch_type = PCH_CNP;
                                DRM_DEBUG_KMS("Found CannonPoint PCH\n");
+                               WARN_ON(!IS_COFFEELAKE(dev_priv));
                        } else if (id_ext == INTEL_PCH_CNP_LP_DEVICE_ID_TYPE) {
                                dev_priv->pch_type = PCH_CNP;
                                DRM_DEBUG_KMS("Found CannonPoint LP PCH\n");
+                               WARN_ON(!IS_COFFEELAKE(dev_priv));
                        } else if ((id == INTEL_PCH_P2X_DEVICE_ID_TYPE) ||
                                   (id == INTEL_PCH_P3X_DEVICE_ID_TYPE) ||
                                   ((id == INTEL_PCH_QEMU_DEVICE_ID_TYPE) &&
-- 
1.9.1

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