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drm/i915: don't warn about Skylake CPU - KabyPoint PCH combo

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Apparently there are machines out there with Skylake CPU and KabyPoint
PCH. Judging from our driver code, there doesn't seem to be any code
paths that would do anything different between SunrisePoint and
KabyPoint PCHs, so it would seem okay to accept the combo without
warnings.

Fixes: 22dea0be50 ("drm/i915: Introduce Kabypoint PCH for Kabylake H/DT.")
References: https://lists.freedesktop.org/archives/intel-gfx/2017-February/118611.html
Reported-by: Rainer Koenig <Rainer.Koenig@ts.fujitsu.com>
Cc: Rainer Koenig <Rainer.Koenig@ts.fujitsu.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: <stable@vger.kernel.org> # v4.8+
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1485956769-26015-1-git-send-email-jani.nikula@intel.com
This commit is contained in:
Jani Nikula 2017-02-01 15:46:09 +02:00
parent 170b03c4a8
commit 3aac4acb89
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/i915/i915_drv.c
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@ -214,7 +214,8 @@ static void intel_detect_pch(struct drm_i915_private *dev_priv)
} else if (id == INTEL_PCH_KBP_DEVICE_ID_TYPE) {
dev_priv->pch_type = PCH_KBP;
DRM_DEBUG_KMS("Found KabyPoint PCH\n");
WARN_ON(!IS_KABYLAKE(dev_priv));
WARN_ON(!IS_SKYLAKE(dev_priv) &&
!IS_KABYLAKE(dev_priv));
} else if ((id == INTEL_PCH_P2X_DEVICE_ID_TYPE) ||
(id == INTEL_PCH_P3X_DEVICE_ID_TYPE) ||
((id == INTEL_PCH_QEMU_DEVICE_ID_TYPE) &&