[PATCH v4 0/4] mipi-i3c-hci: Make able to work with IOMMU enabled

[Jarkko Nikula]

Hi

Here's the 4th version of common I3C core DMA mapping and bounce buffering
handling and making the MIPI I3C HCI able to work with IOMMU enabled.

Changes to the v3:
- patch 1/4: Renamed variable "need_bounce" to "force_bounce" and document
  both true and false argument values.
- patch 3/4: Added Reviewed-by tag.

Changes to the v2:
- patch 1/4: Use explicit kfree() calls in i3c_master_dma_unmap_single().
  Empty line added to the i3c_master_dma_map_single().
- patch 2/4: Call explicitly i3c_master_dma_unmap_single() in
  hci_dma_unmap_xfer().
- patch 4/4: Added Reviewed-by tag.

Changes to the v1:
- DMA mapping length is also cache_line_size() aligned in order to avoid
  possible double bouncing from the SWIOTLB.
- Using DEFINE_FREE and __free infra for cleanup and changes to the other
  patches accordingly.
- Added more description to the patch 1/4 commit log and slight corrections
  to others.


Jarkko Nikula (4):
  i3c: master: Add helpers for DMA mapping and bounce buffer handling
  i3c: mipi-i3c-hci: Use core helpers for DMA mapping and bounce
    buffering
  i3c: mipi-i3c-hci: Use physical device pointer with DMA API
  i3c: mipi-i3c-hci: Use own DMA bounce buffer management for I2C
    transfers

 drivers/i3c/master.c                   | 74 ++++++++++++++++++++++++++
 drivers/i3c/master/mipi-i3c-hci/core.c | 40 +-------------
 drivers/i3c/master/mipi-i3c-hci/dma.c  | 69 ++++++++++++++----------
 drivers/i3c/master/mipi-i3c-hci/hci.h  |  3 +-
 include/linux/i3c/master.h             | 26 +++++++++
 5 files changed, 144 insertions(+), 68 deletions(-)

-- 
2.47.2