[linux-yocto] [yocto-4.12][PATCH 18/36] drm/i915/cfl: Coffee Lake uses CNP PCH.
Liwei Song
liwei.song at windriver.com
Tue Jan 9 23:10:33 PST 2018
From: Rodrigo Vivi <rodrigo.vivi at intel.com>
commit 809378196bb449fe30d0ca15a990965fc553f9f5 upstream.
So let's force it on the virtual detection.
Also it is still the only silicon for now on this PCH,
so WARN otherwise.
v2: Rebased on top of Cannonlake and added the missed
debug message as pointed by DK.
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
Reviewed-by: Anusha Srivatsa <anusha.srivatsa at intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1496937000-8450-2-git-send-email-rodrigo.vivi@intel.com
Signed-off-by: Liwei Song <liwei.song.lsong at gmail.com>
---
drivers/gpu/drm/i915/i915_drv.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index f79b1b4ea853..19ffb3439fa9 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -139,8 +139,9 @@ 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_CANNONLAKE(dev_priv)) {
+ } else if (IS_COFFEELAKE(dev_priv) || IS_CANNONLAKE(dev_priv)) {
ret = PCH_CNP;
+ DRM_DEBUG_KMS("Assuming CannonPoint PCH\n");
}
return ret;
@@ -224,11 +225,13 @@ 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_CANNONLAKE(dev_priv));
+ WARN_ON(!IS_CANNONLAKE(dev_priv) &&
+ !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_CANNONLAKE(dev_priv));
+ WARN_ON(!IS_CANNONLAKE(dev_priv) &&
+ !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) &&
--
2.7.4
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