[PATCH v5 00/11] staging: vc04_services: Drop non-essential global members

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This series aims to drop the remaining (non-essential) global members
to address the following TODO item:
```
* Get rid of all non essential global structures and create a proper per
device structure
```

Mainly the global members are moved to be contained inside platform
driver data. They can be access via platform_get_drvdata().

More re-fractoring has gone into this version now. Please look
for individual commit for details.

Testing on top of RPi 3 with staging next.

Changes in v5:
- Rebase over latest staging-testing that contains kthreads revert [2]
- commit messages fixup
- Add suggested-by in 5/11
- Use spinlock_t(typedef) instead of 'struct spinlock_t' in 8/11

Changes in v4:
- New patch to drop vchiq_connected.[ch] files and move the functions
  to vchiq_arm.c (5/11)
- De-globalise remapped memory region pointer (7/11)
- De-globalise global spinlocks too (8/11)
- De-globalise global vchiq_pointer g_state (10/11)
- commit message updates and trivial variable renaming

Changes in v3:
- Rework 2/6 to 5/6 as per Laurent's review in v2 [1].
- Add a comment for g_regs global __iomem ptr.

Changes in v2:
- Found even more g_* global variables than v1, so new patches to drop
  them
- Introduce 1/6 as suggested during v1 review
- Introuce 6/6 to cleanup the TODO list

[1]: https://lore.kernel.org/linux-staging/4ba0d745-fc8d-4886-b71a-1f19962e9103@moroto.mountain/T/#m440ee992442cc82ea43092b7c895823c918d105f

[2]: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git/commit/?h=staging-testing&id=ebee9ca2f59e35a60a6704a79df6477b3c84ac96

Umang Jain (11):
  staging: vc04_services: Drop g_once_init global variable
  staging: vc04_services: vchiq_arm: Split driver static and runtime
    data
  staging: vc04_services: vchiq_arm: Drop g_cache_line_size
  staging: vc04_services: Move variables for tracking connections
  staging: vc04_services: Drop vchiq_connected.[ch] files
  staging: vc04_services: Move global variables tracking allocated pages
  staging: vc04_services: Move global memory mapped pointer
  staging: vc04_services: Move spinlocks to vchiq_state
  staging: vc04_services: vchiq_mmal: Rename service_callback()
  staging: vc04_services: Move global g_state to vchiq_state
  staging: vc04_services: Drop completed TODO item

 drivers/staging/vc04_services/Makefile        |   1 -
 .../bcm2835-audio/bcm2835-vchiq.c             |   5 +-
 .../bcm2835-camera/bcm2835-camera.c           |   4 +-
 .../include/linux/raspberrypi/vchiq.h         |   4 +-
 drivers/staging/vc04_services/interface/TODO  |  15 --
 .../interface/vchiq_arm/vchiq_arm.c           | 252 ++++++++++--------
 .../interface/vchiq_arm/vchiq_arm.h           |  41 ++-
 .../interface/vchiq_arm/vchiq_bus.c           |   3 +
 .../interface/vchiq_arm/vchiq_bus.h           |   3 +
 .../interface/vchiq_arm/vchiq_connected.c     |  74 -----
 .../interface/vchiq_arm/vchiq_connected.h     |  12 -
 .../interface/vchiq_arm/vchiq_core.c          |  51 ++--
 .../interface/vchiq_arm/vchiq_core.h          |  11 +-
 .../interface/vchiq_arm/vchiq_debugfs.c       |   5 +-
 .../interface/vchiq_arm/vchiq_dev.c           |  34 +--
 .../vc04_services/vchiq-mmal/mmal-vchiq.c     |  14 +-
 .../vc04_services/vchiq-mmal/mmal-vchiq.h     |   3 +-
 17 files changed, 255 insertions(+), 277 deletions(-)
 delete mode 100644 drivers/staging/vc04_services/interface/vchiq_arm/vchiq_connected.c
 delete mode 100644 drivers/staging/vc04_services/interface/vchiq_arm/vchiq_connected.h


base-commit: e4d5e3a9ae68250f7cc7e930ffeecba2c9f32832
-- 
2.44.0





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