[PATCH v4 0/2] Add Apple T2 NHI device links

This series adds a cached flag to detect Apple T2 systems, then uses it
to create device links for the Thunderbolt NHI.

Changes in v4:
- Limited TRP check to T2 Icelake systems only
- Optimized has_apple_t2_chip check
- Included pci.h to drivers/thunderbolt/tb.c
- Used __free(pci_dev_put) to avoid label

Changes in v3:
- Fix build errors with non-x86 machines
- Used __initconst for apple_t2_devices
- Removed UEFI_QUIRK_SKIP_CERT as its unused now
- Used IS_ENABLED(CONFIG_ACPI) in tb_apple_add_links for the T2 part
- Removed !bid check to remove warning with -Waddress

Changes in v2:
- Used a less generic name for has_t2_chip
- Used DMI instead of PCI for has_apple_t2_chip to avoid PCI problems
- Initialized ret in tb_apple_add_links

Link to v3:
https://lore.kernel.org/all/20260721063412.11588-1-atharvatiwarilinuxdev@gmail.com/ (local)

Link to v2:
https://lore.kernel.org/all/20260721054506.11871-1-atharvatiwarilinuxdev@gmail.com/ (local)

Link to v1:
https://lore.kernel.org/all/20260719180308.1398-1-atharvatiwarilinuxdev@gmail.com/ (local)

Atharva Tiwari (2):
  treewide: Add a flag to detect the Apple T2 chip
  thunderbolt: Add device links for Apple T2 NHI

 arch/x86/kernel/quirks.c                      | 37 ++++++++++++
 drivers/thunderbolt/tb.c                      | 58 ++++++++++++++++++-
 include/linux/platform_data/x86/apple.h       |  5 ++
 .../platform_certs/keyring_handler.h          |  8 ---
 security/integrity/platform_certs/load_uefi.c | 38 +++---------
 5 files changed, 106 insertions(+), 40 deletions(-)

-- 
2.43.0