[SRU][D/OEM-OSP1-B][PATCH] drm/i915/cml: Add second PCH ID for CMP

[Timo Aaltonen]

From: Matt Roper <matthew.d.roper at intel.com>

BugLink: http://bugs.launchpad.net/bugs/1848491

The CMP PCH ID we have in the driver is correct for the CML-U machines we have
in our CI system, but the CML-S and CML-H CI machines appear to use a
different PCH ID, leading our driver to detect no PCH for them.

Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
Cc: Anusha Srivatsa <anusha.srivatsa at intel.com>
References: 729ae330a0f2e2 ("drm/i915/cml: Introduce Comet Lake PCH")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111461
Signed-off-by: Matt Roper <matthew.d.roper at intel.com>
Acked-by: Chris Wilson <chris at chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190916233251.387-1-matthew.d.roper@intel.com
(backported from commit 8698ba53cd7173c32320ebbef4d389d41ebb5780)
Signed-off-by: Timo Aaltonen <timo.aaltonen at canonical.com>
---
 drivers/gpu/drm/i915/i915_drv.c | 1 +
 drivers/gpu/drm/i915/i915_drv.h | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 3df37c2b580b..0afbd77f5809 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -187,6 +187,7 @@ intel_pch_type(const struct drm_i915_private *dev_priv, unsigned short id)
 		WARN_ON(!IS_CANNONLAKE(dev_priv) && !IS_COFFEELAKE(dev_priv));
 		return PCH_CNP;
 	case INTEL_PCH_CMP_DEVICE_ID_TYPE:
+	case INTEL_PCH_CMP2_DEVICE_ID_TYPE:
 		DRM_DEBUG_KMS("Found Comet Lake PCH (CMP)\n");
 		WARN_ON(!IS_COFFEELAKE(dev_priv));
 		/* CometPoint is CNP Compatible */
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 09d628527a78..a854c64261fe 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2540,6 +2540,7 @@ static inline unsigned int i915_sg_segment_size(void)
 #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_CMP2_DEVICE_ID_TYPE		0x0680
 #define INTEL_PCH_ICP_DEVICE_ID_TYPE		0x3480
 #define INTEL_PCH_P2X_DEVICE_ID_TYPE		0x7100
 #define INTEL_PCH_P3X_DEVICE_ID_TYPE		0x7000
-- 
2.20.1