[PATCH 0/4] media: atomisp: remove the circbuf library

[Rareș-Mihai Vladu]

Thanks to Andy for suggesting, in review of my earlier typedef
patch [1], that I look at converting the custom circbuf code to
circ_buf or kfifo.

While looking into it, it turned out that the circbuf API is only
used by the local queue path, and ia_css_queue_local_init() has no
callers, so that path is unused. The remote queues only need the
descriptor and element layout shared with the SP firmware and a few
small helpers.

So this series removes the unused local path, moves those few pieces
into ia_css_queue_comm.h and drops base/circbuf/. Please let me know
if you would prefer a different approach and I will rework it.

Patch 3 only moves code, apart from dropping OP___assert(), so I did
not touch the existing style issues there.

Compile-tested only, as I don't have the hardware.

This supersedes the typedef patch [1].

[1] https://lore.kernel.org/all/20260918214132.1135549-1-vladurares@xxxxxxxxx/

Rareș-Mihai Vladu (4):
  media: atomisp: sh_css_mipi: include assert_support.h directly
  media: atomisp: queue: remove unused local queue support
  media: atomisp: queue: move circbuf types and helpers to queue_comm.h
  media: atomisp: remove unused circbuf library

 drivers/staging/media/atomisp/Makefile        |   2 -
 .../base/circbuf/interface/ia_css_circbuf.h   | 363 ------------------
 .../circbuf/interface/ia_css_circbuf_comm.h   |  56 ---
 .../circbuf/interface/ia_css_circbuf_desc.h   | 160 --------
 .../atomisp/pci/base/circbuf/src/circbuf.c    | 312 ---------------
 .../runtime/queue/interface/ia_css_queue.h    |  29 --
 .../queue/interface/ia_css_queue_comm.h       | 139 ++++++-
 .../atomisp/pci/runtime/queue/src/queue.c     | 112 +-----
 .../pci/runtime/queue/src/queue_access.c      |   1 -
 .../pci/runtime/queue/src/queue_access.h      |   4 +-
 .../media/atomisp/pci/sh_css_internal.h       |   2 +-
 .../staging/media/atomisp/pci/sh_css_mipi.c   |   1 +
 12 files changed, 148 insertions(+), 1033 deletions(-)
 delete mode 100644 drivers/staging/media/atomisp/pci/base/circbuf/interface/ia_css_circbuf.h
 delete mode 100644 drivers/staging/media/atomisp/pci/base/circbuf/interface/ia_css_circbuf_comm.h
 delete mode 100644 drivers/staging/media/atomisp/pci/base/circbuf/interface/ia_css_circbuf_desc.h
 delete mode 100644 drivers/staging/media/atomisp/pci/base/circbuf/src/circbuf.c

-- 
2.43.0