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[v4,0/8] i2c: i2c-mlxbf.c: bug fixes and new feature support

Message ID 20220919213431.8045-1-asmaa@nvidia.com
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Series i2c: i2c-mlxbf.c: bug fixes and new feature support | expand

Message

Asmaa Mnebhi Sept. 19, 2022, 9:34 p.m. UTC 
This is a series of patches fixing several bugs and implementing
new features.

Bug fixes:
1) Fix the frequency calculation
2) Fix incorrect base address passed during io write
3) prevent stack overflow in mlxbf_i2c_smbus_start_transaction()
4) Support lock mechanism to avoid race condition between entities
   using the i2c bus

Cleanup:
5) remove IRQF_ONESHOT flag as it is no longer needed.

Features:
6) Support multi slave functionality
7) Support BlueField-3 SoC
8) Update binding devicetree

What has changed from v3->v4:
- moved the patch related to updating the SPDX licence out of this series.
  This will be submitted as a separate patch later and will need approval
  from all contributors.
- fixed build error in the frequency calculation patch. The name
  of the frequency functions changed but that was not reflected
  when they were called.
- Fixed the prefix in $subject as "i2c: <driver>:"
- Use kernel multiline comment style in the "support lock mechanism" patch
- instead of calling mlxbf_i2c_smbus_master_unlock multiple times, use the
  "goto out_unlock" style.
- Added the devicetree reviewers

Asmaa Mnebhi (8):
  i2c: i2c-mlxbf.c: Fix frequency calculation
  i2c: i2c-mlxbf.c: remove IRQF_ONESHOT
  i2c: i2c-mlxbf.c: incorrect base address passed during io write
  i2c: i2c-mlxbf: prevent stack overflow in
    mlxbf_i2c_smbus_start_transaction()
  i2c: i2c-mlxbf.c: support lock mechanism
  i2c: i2c-mlxbf: add multi slave functionality
  i2c: i2c-mlxbf.c: support BlueField-3 SoC
  i2c: i2c-mlxbf.c: Update binding devicetree

 .../bindings/i2c/mellanox,i2c-mlxbf.yaml      |  49 +-
 MAINTAINERS                                   |   1 +
 drivers/i2c/busses/i2c-mlxbf.c                | 862 ++++++++++--------
 3 files changed, 522 insertions(+), 390 deletions(-)