[GIT PULL] I3C changes for 7.2

[GIT PULL] I3C changes for 7.2

[Alexandre Belloni]

Hello Linus,

Here is the i3c subsystem pull request for 7.2. This cycle, there was a
lot of work around the mipi-i3c-hci driver that also lead to
improvements of the core. We also have support for a new SoC, the
Microchip SAMA7D65. And of course, there are small fixes for the other
controller drivers.

The following changes since commit 254f49634ee16a731174d2ae34bc50bd5f45e731:

  Linux 7.1-rc1 (2026-04-26 14:19:00 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux.git tags/i3c/for-7.2

for you to fetch changes up to 678e9409dd78d5c080607df15c6f346c7edb03d0:

  i3c: mipi-i3c-hci: Use named initializers for platform_device_id's .driver_data (2026-06-16 23:19:45 +0200)

----------------------------------------------------------------
I3C for 7.2

Subsystem:
 - introduce dynamic address reconciliation after DAA
 - add preliminary API for hub support
 - fixes for dev_nack_retry_count handling
 - move hot-join support in the core instead of open coding in different drivers

Drivers:
 - mipi-i3c-hci-pci: DMA abort, recovery and related improvements, hot-join
   support, Microchip SAMA7D65 support, fix possible race in IBI handling
 - dw-i3c-master: fix IBI count register selection for versalnet
 - svc: interrupt handling fixes for NPCM845

----------------------------------------------------------------
Adrian Hunter (35):
      i3c: mipi-i3c-hci: Fix suspend behavior when bus disable falls back to software reset
      i3c: mipi-i3c-hci: Preserve RUN bit when aborting DMA ring
      i3c: mipi-i3c-hci: Prevent DMA enqueue while ring is aborting or in error
      i3c: mipi-i3c-hci: Wait for DMA ring restart to complete
      i3c: mipi-i3c-hci: Move hci_dma_xfer_done() definition
      i3c: mipi-i3c-hci: Call hci_dma_xfer_done() from dequeue path
      i3c: mipi-i3c-hci: Complete transfer lists immediately on error
      i3c: mipi-i3c-hci: Avoid restarting DMA ring after aborting wrong transfer
      i3c: mipi-i3c-hci: Add DMA ring abort/reset quirk for Intel controllers
      i3c: mipi-i3c-hci: Factor out hci_dma_abort()
      i3c: mipi-i3c-hci: Add DMA ring abort quirk for Intel controllers
      i3c: mipi-i3c-hci: Factor out reset-and-restore helper
      i3c: mipi-i3c-hci: Add DMA-mode recovery for internal controller errors
      i3c: mipi-i3c-hci: Wait for NoOp commands to complete
      i3c: mipi-i3c-hci: Base timeouts on actual transfer start time
      i3c: mipi-i3c-hci: Consolidate DMA ring allocation
      i3c: mipi-i3c-hci: Increase DMA transfer ring size to maximum
      i3c: master: Make hot-join workqueue freezable to block hot-join during suspend
      i3c: master: Serialize i3c_set_hotjoin() with the maintenance lock
      i3c: master: Consolidate Hot-Join DAA work in the core
      i3c: master: Ensure Hot-Join operations are stopped on shutdown
      i3c: dw: Drop redundant Hot-Join cancel_work_sync() in shutdown
      i3c: master: Defer new-device registration out of DAA caller context
      i3c: master: Export i3c_master_enec_disec_locked()
      i3c: mipi-i3c-hci: Add Hot-Join support
      i3c: mipi-i3c-hci: Fix race in i3c_hci_addr_to_dev()
      i3c: mipi-i3c-hci: Ignore DISEC failures when disabling IBIs
      i3c: master: Prevent reuse of dynamic address on device add failure
      i3c: mipi-i3c-hci: Tolerate i3c_master_add_i3c_dev_locked() failures in DAA
      i3c: master: Make i3c_master_add_i3c_dev_locked() return void
      i3c: master: Move DAA API functions after i3c_master_add_i3c_dev_locked()
      i3c: master: Reconcile dynamic addresses after DAA
      i3c: master: Update dev_nack_retry_count under maintenance lock
      i3c: master: Add missing runtime PM get in dev_nack_retry_count_store()
      i3c: master: Use unsigned int for dev_nack_retry_count consistently

Aman Kumar Pandey (1):
      i3c: master: Expose the APIs to support I3C hub

Lakshay Piplani (1):
      i3c: master: rename i3c_master_reattach_i3c_dev() to *_locked

Manikandan Muralidharan (2):
      dt-bindings: i3c: mipi-i3c-hci: add Microchip SAMA7D65 compatible
      i3c: mipi-i3c-hci: add microchip sama7d65 SoC compatible with the required quirk

Maxwell Doose (1):
      i3c: master: Replace sprintf() with sysfs_emit() family

Shubhrajyoti Datta (1):
      i3c: dw-i3c-master: Fix IBI count register selection for versalnet

Stanley Chu (2):
      i3c: master: svc: Fix missed IBI after false SLVSTART on NPCM845
      i3c: master: svc: Prevent IRQ storm from false SLVSTART on NPCM845

Uwe Kleine-König (The Capable Hub) (2):
      i3c: Consistently define pci_device_ids using named initializers
      i3c: mipi-i3c-hci: Use named initializers for platform_device_id's .driver_data

 .../devicetree/bindings/i3c/mipi-i3c-hci.yaml      |  27 +-
 drivers/i3c/master.c                               | 504 ++++++++++++++++-----
 drivers/i3c/master/dw-i3c-master.c                 |  40 +-
 drivers/i3c/master/dw-i3c-master.h                 |   3 +-
 drivers/i3c/master/i3c-master-cdns.c               |  14 +-
 drivers/i3c/master/mipi-i3c-hci/cmd.h              |   6 +
 drivers/i3c/master/mipi-i3c-hci/cmd_v1.c           |   4 +-
 drivers/i3c/master/mipi-i3c-hci/cmd_v2.c           |   4 +-
 drivers/i3c/master/mipi-i3c-hci/core.c             | 196 +++++++-
 drivers/i3c/master/mipi-i3c-hci/dma.c              | 345 ++++++++++----
 drivers/i3c/master/mipi-i3c-hci/hci.h              |  24 +
 drivers/i3c/master/mipi-i3c-hci/ibi.h              |  13 +-
 drivers/i3c/master/mipi-i3c-hci/mipi-i3c-hci-pci.c |  22 +-
 drivers/i3c/master/mipi-i3c-hci/pio.c              |  13 +-
 drivers/i3c/master/svc-i3c-master.c                |  39 +-
 include/linux/i3c/master.h                         |  23 +-
 16 files changed, 970 insertions(+), 307 deletions(-)

-- 
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com