From: James Ausmus <james.ausmus@intel.com>
Date: Thu, 17 Oct 2019 19:42:03 +0000 (-0700)
Subject: drm/i915/aml: Allow SPT PCH for all AML devices
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=a201b00e5248bb6882ff7ed9e488c999019e729a;p=uclinux-h8%2Flinux.git

drm/i915/aml: Allow SPT PCH for all AML devices

Even the AML devices that behave like CFLs can be paired with an SPT
PCH. Allow this to happen without blowing up dmesg.

BSpec: 33665

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=112013
Cc: Quanxian Wang <quanxian.wang@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: James Ausmus <james.ausmus@intel.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191017194203.9645-1-james.ausmus@intel.com
---

diff --git a/drivers/gpu/drm/i915/intel_pch.c b/drivers/gpu/drm/i915/intel_pch.c
index 1035d3d46fd8..bb1cb6f12a50 100644
--- a/drivers/gpu/drm/i915/intel_pch.c
+++ b/drivers/gpu/drm/i915/intel_pch.c
@@ -52,7 +52,8 @@ intel_pch_type(const struct drm_i915_private *dev_priv, unsigned short id)
 		return PCH_SPT;
 	case INTEL_PCH_SPT_LP_DEVICE_ID_TYPE:
 		DRM_DEBUG_KMS("Found SunrisePoint LP PCH\n");
-		WARN_ON(!IS_SKYLAKE(dev_priv) && !IS_KABYLAKE(dev_priv));
+		WARN_ON(!IS_SKYLAKE(dev_priv) && !IS_KABYLAKE(dev_priv) &&
+			!IS_COFFEELAKE(dev_priv));
 		return PCH_SPT;
 	case INTEL_PCH_KBP_DEVICE_ID_TYPE:
 		DRM_DEBUG_KMS("Found Kaby Lake PCH (KBP)\n");