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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: Anusha Srivatsa <anusha.srivatsa@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190318200133.9666-2-anusha.srivatsa@intel.com
hifive-unleashed-5.2
Anusha Srivatsa 2019-03-18 13:01:33 -07:00 committed by Anusha
parent a7b4deeb02
commit 729ae330a0
2 changed files with 7 additions and 1 deletions
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5
drivers/gpu/drm/i915/i915_drv.c
View File

@ -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));

3
drivers/gpu/drm/i915/i915_drv.h
View File

@ -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