[PATCH v5 0/6] platform/x86/intel/vsec: Prep for ACPI PMT discovery

[David E. Box]

This series updates intel_vsec to improve const-correctness, decouple
helper APIs from PCI, enhance error handling, and plumb ACPI-based Intel
Platform Monitoring Technology (PMT) discovery through the vsec layer. It
is preparatory infrastructure for follow-on PMT core/telemetry and
PMC/SSRAM series that add ACPI discovery and support for new platforms.

The series is organized as follows:

Patches 1-2 refactor and improve const-correctness of base_addr handling.
Patch 1 makes base_addr an explicit parameter throughout the call chain,
clarifying ownership and removing conditional logic. Patch 2 then makes the
platform info data structure read-only, preventing unintended modifications
to shared driver data.

Patches 3-4 decouple the vsec layer from PCI-specific types, updating
helper APIs and data structures to use generic struct device instead of
struct pci_dev.  This enables vsec to work with both PCI and ACPI parent
devices.

Patch 5 enhances error visibility by returning meaningful error codes from
the registration path instead of collapsing to boolean success/failure.

Patch 6 adds infrastructure for ACPI-based PMT discovery, allowing client
drivers to consume discovery data from either PCI or ACPI sources.

Signed-off-by: David E. Box <david.e.box@xxxxxxxxxxxxxxx>

David E. Box (6):
      platform/x86/intel/vsec: Refactor base_addr handling
      platform/x86/intel/vsec: Make driver_data info const
      platform/x86/intel/vsec: Decouple add/link helpers from PCI
      platform/x86/intel/vsec: Switch exported helpers from pci_dev to device
      platform/x86/intel/vsec: Return real error codes from registration path
      platform/x86/intel/vsec: Plumb ACPI PMT discovery tables through vsec

 drivers/gpu/drm/xe/xe_debugfs.c                  |   2 +-
 drivers/gpu/drm/xe/xe_hwmon.c                    |   2 +-
 drivers/gpu/drm/xe/xe_vsec.c                     |   7 +-
 drivers/gpu/drm/xe/xe_vsec.h                     |   4 +-
 drivers/platform/x86/intel/pmc/core.c            |   4 +-
 drivers/platform/x86/intel/pmc/ssram_telemetry.c |   2 +-
 drivers/platform/x86/intel/pmt/class.c           |   8 +-
 drivers/platform/x86/intel/pmt/class.h           |   5 +-
 drivers/platform/x86/intel/pmt/discovery.c       |   4 +-
 drivers/platform/x86/intel/pmt/telemetry.c       |  13 +--
 drivers/platform/x86/intel/pmt/telemetry.h       |  12 +--
 drivers/platform/x86/intel/sdsi.c                |   5 +-
 drivers/platform/x86/intel/vsec.c                | 121 ++++++++++++++---------
 drivers/platform/x86/intel/vsec_tpmi.c           |  10 +-
 include/linux/intel_vsec.h                       |  39 ++++++--
 15 files changed, 144 insertions(+), 94 deletions(-)
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base-commit: 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f
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