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i915/pch reports a warning on a mini PC which has a CoffeeLake-S GT2
[UHD Graphics 630] [8086:3e92] and an ISA bridge - H110 LPC Controller
[8086:a143].
[5.608723] i915 0000:00:02.0: [drm] Found coffeelake (device ID 3e92) integrated display version 9.00 stepping N/A
[5.608969] ------------[ cut here ]------------
[5.608972] i915 0000:00:02.0: [drm] drm_WARN_ON(!display->platform.skylake && !display->platform.kabylake)
[5.608995] WARNING: CPU: 3 PID: 440 at drivers/gpu/drm/i915/display/intel_pch.c:126 intel_pch_type+0x1af/0xae0 [i915]
[5.609317] CPU: 3 UID: 0 PID: 440 Comm: (udev-worker) Not tainted 6.15.0-rc3-drm-tip-2fa6469c618d #3 PREEMPT(voluntary)
Signed-off-by: Jiajia Liu <liujiajia@kylinos.cn>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://lore.kernel.org/r/20250423073730.585181-1-liujiajia@kylinos.cn
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Abstract detection of platforms with south display on the same PCI
device or SoC die as north display, and all around clarify what this
means. Debug log about it for good measure.
Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Link: https://lore.kernel.org/r/95cd619b63a81a0a7f8c73a64694da9d41e3a575.1744880985.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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We no longer need i915_drv.h in intel_pch.c, and we no longer need
intel_pch.h universally.
With intel_pch.h being included from intel_display_core.h, it's still
included pretty much everywhere, but there's no need to include it
explicitly from i915_drv.h or xe_device_types.h.
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://lore.kernel.org/r/68ec70f6880b7af19bc93b9817959299634a555d.1744364975.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Make PCH detection part of display. For now, call it also for
!HAS_DISPLAY() to avoid functional changes here.
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://lore.kernel.org/r/de70b35b170c9a74edddb497a209eb10427b77de.1744364975.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Now that intel_pch lives under display, let's begin its
conversion towards struct intel_display.
Move the pch_type to inside intel_display and convert the
callers.
While doing it, sort intel_display_core.h include list
alphabetically.
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://lore.kernel.org/r/8ffe86eb2a02153e3f866a81fb6dc8a3327a0f25.1744364975.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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The only usage of the "PCH" infra is to detect which South Display
Engine we should be using. Move it under display so we can convert
all its callers towards intel_display struct later.
No functional or code change.
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://lore.kernel.org/r/041e3dee494aa15c22172360f2bdd9b15e4acb00.1744364975.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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