Commit 729ae330 authored by Anusha Srivatsa's avatar Anusha Srivatsa Committed by Anusha
Browse files

drm/i915/cml: Introduce Comet Lake PCH 



Comet Lake PCH is based off of Cannon Point(CNP).
Add PCI ID for Comet Lake PCH.

v2: Code cleanup (DK)

v3: Comment cleanup (Jani)

Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: default avatarAnusha Srivatsa <anusha.srivatsa@intel.com>
Reviewed-by: default avatarRodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190318200133.9666-2-anusha.srivatsa@intel.com
parent a7b4deeb

drivers/gpu/drm/i915/i915_drv.c

+5 −0
Original line number Diff line number Diff line
@@ -188,6 +188,11 @@ intel_pch_type(const struct drm_i915_private *dev_priv, unsigned short id) 
		DRM_DEBUG_KMS("Found Cannon Lake LP PCH (CNP-LP)\n");

		WARN_ON(!IS_CANNONLAKE(dev_priv) && !IS_COFFEELAKE(dev_priv));

		return PCH_CNP;

	case INTEL_PCH_CMP_DEVICE_ID_TYPE:

		DRM_DEBUG_KMS("Found Comet Lake PCH (CMP)\n");

		WARN_ON(!IS_COFFEELAKE(dev_priv));

		/* CometPoint is CNP Compatible */

		return PCH_CNP;

	case INTEL_PCH_ICP_DEVICE_ID_TYPE:

		DRM_DEBUG_KMS("Found Ice Lake PCH\n");

		WARN_ON(!IS_ICELAKE(dev_priv));

drivers/gpu/drm/i915/i915_drv.h

+2 −1
Original line number Diff line number Diff line
@@ -537,7 +537,7 @@ enum intel_pch { 
	PCH_LPT,	/* Lynxpoint/Wildcatpoint PCH */

	PCH_SPT,        /* Sunrisepoint PCH */

	PCH_KBP,        /* Kaby Lake PCH */

	PCH_CNP,        /* Cannon Lake PCH */

	PCH_CNP,        /* Cannon/Comet Lake PCH */

	PCH_ICP,	/* Ice Lake PCH */

};
@@ -2547,6 +2547,7 @@ static inline unsigned int i915_sg_segment_size(void) 
#define INTEL_PCH_KBP_DEVICE_ID_TYPE		0xA280

#define INTEL_PCH_CNP_DEVICE_ID_TYPE		0xA300

#define INTEL_PCH_CNP_LP_DEVICE_ID_TYPE		0x9D80

#define INTEL_PCH_CMP_DEVICE_ID_TYPE		0x0280

#define INTEL_PCH_ICP_DEVICE_ID_TYPE		0x3480

#define INTEL_PCH_P2X_DEVICE_ID_TYPE		0x7100

#define INTEL_PCH_P3X_DEVICE_ID_TYPE		0x7000

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