linux-kernel - [PATCH v3 0/6] i2c: npcm: Bug fixes read/write operation, checkpatch

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Message-Id: <20240913101445.16513-1-kfting@nuvoton.com>
Date: Fri, 13 Sep 2024 18:14:40 +0800
From: warp5tw@...il.com
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Cc: openbmc@...ts.ozlabs.org,
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Subject: [PATCH v3 0/6] i2c: npcm: Bug fixes read/write operation, checkpatch

From: Tyrone Ting <kfting@...oton.com>

This patchset includes the following fixes:

- Enable the target functionality in the interrupt handling routine 
  when the i2c transfer is about to finish.
- Correct the read/write operation procedure.
- Introduce a software flag to handle the bus error (BER) condition
  which is not caused by the i2c transfer.
- Modify timeout calculation.
- Assign the client address earlier logically.
- Use an i2c frequency table for the frequency parameters assignment.
- Coding style fix.

The NPCM I2C driver is tested on NPCM750 and NPCM845 evaluation boards.

Addressed comments from:
- Andi Shyti : https://lore.kernel.org/lkml/
  cfdfldh5tuhb4r5pdpgolcr2roeewsobedet2uvmpbnqlw5yh4@...2szsbs2r2/
- Andi Shyti : https://lore.kernel.org/lkml/
  stnyjmnqdobzq2f2ntq32tu4kq6ohsxyevjn5rgz3uu2qncuzl@...ifscgokgj/
- Andy Shevchenko : https://lore.kernel.org/lkml/ZtWnd8bmiu-M4fQg
  @smile.fi.intel.com/
- Andy Shevchenko : https://lore.kernel.org/lkml/Zt7Nn9uJSeHFUZZF
  @smile.fi.intel.com/
- Andi Shyti : https://lore.kernel.org/lkml/
  2kqhf2ad3omx3dsjucrqhtnonnox7ghtp7vkogrwrdfh3dgg2o@...a4gfg6c3f/

Changes since version 2:
- Add more explanations in the commit message and code modification.
- Use lower character names for declarations.
- Remove Fixes tags in commits which are not to fix bugs.

Changes since version 1:
- Restore the npcm_i2caddr array length to fix the smatch warning.
- Remove unused variables.
- Handle the condition where scl_table_cnt reaches to the maximum value.
- Fix the checkpatch warning.

Charles Boyer (1):
  i2c: npcm: Enable slave in eob interrupt

Tyrone Ting (5):
  i2c: npcm: correct the read/write operation procedure
  i2c: npcm: use a software flag to indicate a BER condition
  i2c: npcm: Modify timeout evaluation mechanism
  i2c: npcm: Modify the client address assignment
  i2c: npcm: use i2c frequency table

 drivers/i2c/busses/i2c-npcm7xx.c | 281 ++++++++++++++++++++-----------
 1 file changed, 179 insertions(+), 102 deletions(-)


base-commit: 48b83f5f68edb4d19771d5ecc54bbbc37166f753
-- 
2.34.1