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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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3090ea0344
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>
59 lines
2.1 KiB
C
59 lines
2.1 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright 2025 Intel Corporation.
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*/
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#ifndef __INTEL_PCH__
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#define __INTEL_PCH__
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#include "intel_display_conversion.h"
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struct intel_display;
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/*
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* Sorted by south display engine compatibility.
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* If the new PCH comes with a south display engine that is not
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* inherited from the latest item, please do not add it to the
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* end. Instead, add it right after its "parent" PCH.
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*/
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enum intel_pch {
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PCH_NOP = -1, /* PCH without south display */
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PCH_NONE = 0, /* No PCH present */
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PCH_IBX, /* Ibexpeak PCH */
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PCH_CPT, /* Cougarpoint/Pantherpoint PCH */
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PCH_LPT_H, /* Lynxpoint/Wildcatpoint H PCH */
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PCH_LPT_LP, /* Lynxpoint/Wildcatpoint LP PCH */
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PCH_SPT, /* Sunrisepoint/Kaby Lake PCH */
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PCH_CNP, /* Cannon/Comet Lake PCH */
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PCH_ICP, /* Ice Lake/Jasper Lake PCH */
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PCH_TGP, /* Tiger Lake/Mule Creek Canyon PCH */
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PCH_ADP, /* Alder Lake PCH */
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/* Fake PCHs, functionality handled on the same PCI dev */
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PCH_DG1 = 1024,
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PCH_DG2,
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PCH_MTL,
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PCH_LNL,
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};
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#define INTEL_PCH_TYPE(_display) (__to_intel_display(_display)->pch_type)
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#define HAS_PCH_DG2(display) (INTEL_PCH_TYPE(display) == PCH_DG2)
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#define HAS_PCH_ADP(display) (INTEL_PCH_TYPE(display) == PCH_ADP)
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#define HAS_PCH_DG1(display) (INTEL_PCH_TYPE(display) == PCH_DG1)
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#define HAS_PCH_TGP(display) (INTEL_PCH_TYPE(display) == PCH_TGP)
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#define HAS_PCH_ICP(display) (INTEL_PCH_TYPE(display) == PCH_ICP)
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#define HAS_PCH_CNP(display) (INTEL_PCH_TYPE(display) == PCH_CNP)
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#define HAS_PCH_SPT(display) (INTEL_PCH_TYPE(display) == PCH_SPT)
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#define HAS_PCH_LPT_H(display) (INTEL_PCH_TYPE(display) == PCH_LPT_H)
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#define HAS_PCH_LPT_LP(display) (INTEL_PCH_TYPE(display) == PCH_LPT_LP)
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#define HAS_PCH_LPT(display) (INTEL_PCH_TYPE(display) == PCH_LPT_H || \
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INTEL_PCH_TYPE(display) == PCH_LPT_LP)
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#define HAS_PCH_CPT(display) (INTEL_PCH_TYPE(display) == PCH_CPT)
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#define HAS_PCH_IBX(display) (INTEL_PCH_TYPE(display) == PCH_IBX)
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#define HAS_PCH_NOP(display) (INTEL_PCH_TYPE(display) == PCH_NOP)
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#define HAS_PCH_SPLIT(display) (INTEL_PCH_TYPE(display) != PCH_NONE)
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void intel_pch_detect(struct intel_display *display);
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#endif /* __INTEL_PCH__ */
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