drm/i915: Add new CNL PCH ID seen on a CML platform

Atm we don't detect a PCH with PCI ID 0xA3C1 which showed up now on a CML platform. We don't have the official assignment of the PCH PCI IDs, but this looks like a CNP which was already used on CML platforms. Let's add the new ID->PCH type mapping accordingly. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=112051 Reported-and-tested-by: Cyrus <cyrus.lien@canonical.com> Cc: Cyrus <cyrus.lien@canonical.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: José Roberto de Souza <jose.souza@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191022095155.30991-1-imre.deak@intel.com
mariux64 · Oct 23, 2019 · 37c92dc · 37c92dc
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commit 37c92dc
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diff --git a/drivers/gpu/drm/i915/intel_pch.c b/drivers/gpu/drm/i915/intel_pch.c
@@ -62,6 +62,7 @@ intel_pch_type(const struct drm_i915_private *dev_priv, unsigned short id)
 		/* KBP is SPT compatible */
 		return PCH_SPT;
 	case INTEL_PCH_CNP_DEVICE_ID_TYPE:
+	case INTEL_PCH_CNP2_DEVICE_ID_TYPE:
 		DRM_DEBUG_KMS("Found Cannon Lake PCH (CNP)\n");
 		WARN_ON(!IS_CANNONLAKE(dev_priv) && !IS_COFFEELAKE(dev_priv));
 		return PCH_CNP;

diff --git a/drivers/gpu/drm/i915/intel_pch.h b/drivers/gpu/drm/i915/intel_pch.h
@@ -40,6 +40,7 @@ enum intel_pch {
 #define INTEL_PCH_SPT_LP_DEVICE_ID_TYPE		0x9D00
 #define INTEL_PCH_KBP_DEVICE_ID_TYPE		0xA280
 #define INTEL_PCH_CNP_DEVICE_ID_TYPE		0xA300
+#define INTEL_PCH_CNP2_DEVICE_ID_TYPE		0xA380
 #define INTEL_PCH_CNP_LP_DEVICE_ID_TYPE		0x9D80
 #define INTEL_PCH_CMP_DEVICE_ID_TYPE		0x0280
 #define INTEL_PCH_CMP2_DEVICE_ID_TYPE		0x0680