Hello Linus,

Here is the i3c subsystem pull request for 6.19. Most of the work has
been concentrated on mipi-i3c-hci and in particular its pci variant. The
renesas and dw drivers have also seen a few improvements.

The following changes since commit 8f0b4cce4481fb22653697cced8d0d04027cb1e8:

  Linux 6.19-rc1 (2025-12-14 16:05:07 +1200)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux.git tags/i3c/for-6.20

for you to fetch changes up to ed318b3fb4ab317c533d38d160326fa5d7569497:

  i3c: dw-i3c-master: fix SIR reject bit mapping for dynamic addresses (2026-01-31 00:05:22 +0100)

----------------------------------------------------------------
I3C for 6.20

Subsystem:
 - add sysfs entry and attribute for Device NACK Retry count

Drivers:
 - dw: Device NACK Retry configuration knob
 - mipi-i3c-hci: support for Multi-Bus Instances, Runtime PM support, System
   Suspend support
 - renesas: suspend/resume support

----------------------------------------------------------------
Adrian Hunter (35):
      i3c: mipi-i3c-hci: Remove duplicate blank lines
      i3c: mipi-i3c-hci: Stop reading Extended Capabilities if capability ID is 0
      i3c: mipi-i3c-hci: Quieten initialization messages
      i3c: mipi-i3c-hci-pci: Do not repeatedly check for NULL driver_data
      i3c: mipi-i3c-hci-pci: Enable MSI support
      i3c: mipi-i3c-hci-pci: Assign unique device names and IDs for Intel LPSS I3C
      i3c: mipi-i3c-hci: Allow for Multi-Bus Instances
      i3c: mipi-i3c-hci-pci: Pass base regs as platform data to i3c core device
      i3c: mipi-i3c-hci-pci: Convert to MFD driver
      i3c: mipi-i3c-hci-pci: Add support for Multi-Bus Instances
      i3c: mipi-i3c-hci-pci: Define Multi-Bus instances for supported controllers
      i3c: mipi-i3c-hci: Reset RING_OPERATION1 fields during init
      i3c: mipi-i3c-hci: Ensure proper bus clean-up
      i3c: master: Update hot-join flag only on success
      i3c: master: Replace WARN_ON() with dev_err() in i3c_dev_free_ibi_locked()
      i3c: mipi-i3c-hci: Switch DAT bitmap allocation to devm_bitmap_zalloc()
      i3c: mipi-i3c-hci: Switch PIO data allocation to devm_kzalloc()
      i3c: mipi-i3c-hci: Manage DMA deallocation via devres action
      i3c: mipi-i3c-hci: Cache DAT in memory for Runtime PM restore
      i3c: mipi-i3c-hci: Introduce helper to restore DAT
      i3c: mipi-i3c-hci: Extract ring initialization from hci_dma_init()
      i3c: mipi-i3c-hci: Add DMA suspend and resume support
      i3c: mipi-i3c-hci: Refactor PIO register initialization
      i3c: mipi-i3c-hci: Add PIO suspend and resume support
      i3c: mipi-i3c-hci: Factor out software reset into helper
      i3c: mipi-i3c-hci: Factor out IO mode setting into helper
      i3c: mipi-i3c-hci: Factor out core initialization into helper
      i3c: mipi-i3c-hci: Allow core re-initialization for Runtime PM support
      i3c: mipi-i3c-hci: Factor out master dynamic address setting into helper
      i3c: master: Introduce optional Runtime PM support
      i3c: mipi-i3c-hci: Add optional Runtime PM support
      i3c: mipi-i3c-hci-pci: Add Runtime PM support
      i3c: master: Add i3c_master_do_daa_ext() for post-hibernation address recovery
      i3c: mipi-i3c-hci: Add optional System Suspend support
      i3c: mipi-i3c-hci-pci: Add System Suspend support

Adrian Ng Ho Yin (6):
      i3c: add sysfs entry and attribute for Device NACK Retry count
      i3c: dw: Add support for Device NACK Retry configuration
      i3c: dw: use FIELD_PREP for device address table macros
      i3c: dw: Preserve DAT entry bits when restoring addresses
      i3c: dw-i3c-master: convert spinlock usage to scoped guards
      i3c: dw-i3c-master: fix SIR reject bit mapping for dynamic addresses

Billy Tsai (1):
      i3c: Move device name assignment after i3c_bus_init

Frank Li (3):
      i3c: drop i3c_priv_xfer and i3c_device_do_priv_xfers()
      i3c: master: svc: Initialize 'dev' to NULL in svc_i3c_master_ibi_isr()
      i3c: Add stub functions when I3C support is disabled

Fredrik Markstrom (1):
      i3c: dw: Initialize spinlock to avoid upsetting lockdep

Krzysztof Kozlowski (1):
      i3c: master: Simplify with scoped for each OF child loop

Tommaso Merciai (4):
      i3c: renesas: Switch to clk_bulk API and store clocks in private data
      i3c: renesas: Store clock rate and reset controls in struct renesas_i3c
      i3c: renesas: Factor out hardware initialization to separate function
      i3c: renesas: Add suspend/resume support

Zilin Guan (1):
      i3c: dw: Fix memory leak in dw_i3c_master_i2c_xfers()

 Documentation/ABI/testing/sysfs-bus-i3c            |  11 +
 drivers/i3c/device.c                               |  46 +-
 drivers/i3c/internals.h                            |   4 +
 drivers/i3c/master.c                               | 213 ++++++++--
 drivers/i3c/master/Kconfig                         |   1 +
 drivers/i3c/master/dw-i3c-master.c                 | 121 ++++--
 drivers/i3c/master/mipi-i3c-hci/cmd_v1.c           |   2 -
 drivers/i3c/master/mipi-i3c-hci/cmd_v2.c           |   2 -
 drivers/i3c/master/mipi-i3c-hci/core.c             | 465 +++++++++++++++------
 drivers/i3c/master/mipi-i3c-hci/dat.h              |   2 +-
 drivers/i3c/master/mipi-i3c-hci/dat_v1.c           |  46 +-
 drivers/i3c/master/mipi-i3c-hci/dma.c              | 171 +++++---
 drivers/i3c/master/mipi-i3c-hci/ext_caps.c         |  58 ++-
 drivers/i3c/master/mipi-i3c-hci/ext_caps.h         |   1 -
 drivers/i3c/master/mipi-i3c-hci/hci.h              |  17 +-
 drivers/i3c/master/mipi-i3c-hci/mipi-i3c-hci-pci.c | 186 ++++++---
 drivers/i3c/master/mipi-i3c-hci/pio.c              |  64 ++-
 drivers/i3c/master/renesas-i3c.c                   | 319 ++++++++------
 drivers/i3c/master/svc-i3c-master.c                |   4 +-
 include/linux/i3c/device.h                         |  24 +-
 include/linux/i3c/master.h                         |  11 +
 include/linux/platform_data/mipi-i3c-hci.h         |  15 +
 22 files changed, 1269 insertions(+), 514 deletions(-)
 create mode 100644 include/linux/platform_data/mipi-i3c-hci.h

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