intel_pch.h

 1/* SPDX-License-Identifier: MIT */
 2/*
 3 * Copyright 2025 Intel Corporation.
 4 */
 5
 6#ifndef __INTEL_PCH__
 7#define __INTEL_PCH__
 8
 9struct intel_display;
10
11/*
12 * Sorted by south display engine compatibility.
13 * If the new PCH comes with a south display engine that is not
14 * inherited from the latest item, please do not add it to the
15 * end. Instead, add it right after its "parent" PCH.
16 */
17enum intel_pch {
18	PCH_NOP = -1,	/* PCH without south display */
19	PCH_NONE = 0,	/* No PCH present */
20	PCH_IBX,	/* Ibexpeak PCH */
21	PCH_CPT,	/* Cougarpoint/Pantherpoint PCH */
22	PCH_LPT_H,	/* Lynxpoint/Wildcatpoint H PCH */
23	PCH_LPT_LP,	/* Lynxpoint/Wildcatpoint LP PCH */
24	PCH_SPT,        /* Sunrisepoint/Kaby Lake PCH */
25	PCH_CNP,        /* Cannon/Comet Lake PCH */
26	PCH_ICP,	/* Ice Lake/Jasper Lake PCH */
27	PCH_TGP,	/* Tiger Lake/Mule Creek Canyon PCH */
28	PCH_ADP,	/* Alder Lake PCH */
29
30	/* Fake PCHs, functionality handled on the same PCI dev */
31	PCH_DG1 = 1024,
32	PCH_DG2,
33	PCH_MTL,
34	PCH_LNL,
35};
36
37#define INTEL_PCH_TYPE(_display)		((_display)->pch_type)
38#define HAS_PCH_DG2(display)			(INTEL_PCH_TYPE(display) == PCH_DG2)
39#define HAS_PCH_ADP(display)			(INTEL_PCH_TYPE(display) == PCH_ADP)
40#define HAS_PCH_DG1(display)			(INTEL_PCH_TYPE(display) == PCH_DG1)
41#define HAS_PCH_TGP(display)			(INTEL_PCH_TYPE(display) == PCH_TGP)
42#define HAS_PCH_ICP(display)			(INTEL_PCH_TYPE(display) == PCH_ICP)
43#define HAS_PCH_CNP(display)			(INTEL_PCH_TYPE(display) == PCH_CNP)
44#define HAS_PCH_SPT(display)			(INTEL_PCH_TYPE(display) == PCH_SPT)
45#define HAS_PCH_LPT_H(display)			(INTEL_PCH_TYPE(display) == PCH_LPT_H)
46#define HAS_PCH_LPT_LP(display)			(INTEL_PCH_TYPE(display) == PCH_LPT_LP)
47#define HAS_PCH_LPT(display)			(INTEL_PCH_TYPE(display) == PCH_LPT_H || \
48						 INTEL_PCH_TYPE(display) == PCH_LPT_LP)
49#define HAS_PCH_CPT(display)			(INTEL_PCH_TYPE(display) == PCH_CPT)
50#define HAS_PCH_IBX(display)			(INTEL_PCH_TYPE(display) == PCH_IBX)
51#define HAS_PCH_NOP(display)			(INTEL_PCH_TYPE(display) == PCH_NOP)
52#define HAS_PCH_SPLIT(display)			(INTEL_PCH_TYPE(display) != PCH_NONE)
53
54void intel_pch_detect(struct intel_display *display);
55
56#endif /* __INTEL_PCH__ */