linux-kernel - [PATCH v6 0/5] i2c: npcm: Bug fixes timeout, spurious interrupts

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Message-Id: <20220525032341.3182-1-warp5tw@gmail.com>
Date:   Wed, 25 May 2022 11:23:36 +0800
From:   Tyrone Ting <warp5tw@...il.com>
To:     avifishman70@...il.com, tmaimon77@...il.com, tali.perry1@...il.com,
        venture@...gle.com, yuenn@...gle.com, benjaminfair@...gle.com,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        wsa@...nel.org, andriy.shevchenko@...ux.intel.com,
        jarkko.nikula@...ux.intel.com, semen.protsenko@...aro.org,
        jie.deng@...el.com, jsd@...ihalf.com, sven@...npeter.dev,
        lukas.bulwahn@...il.com, olof@...om.net, arnd@...db.de,
        warp5tw@...il.com, tali.perry@...oton.com, Avi.Fishman@...oton.com,
        tomer.maimon@...oton.com, KWLIU@...oton.com, JJLIU0@...oton.com,
        kfting@...oton.com
Cc:     openbmc@...ts.ozlabs.org, linux-i2c@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v6 0/5] i2c: npcm: Bug fixes timeout, spurious interrupts

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

This patchset includes the following fixes:

- Add dt-bindings description for NPCM845.
- Bug fix for timeout calculation.
- Better handling of spurious interrupts.
- Fix for event type in slave mode.
- Removal of own slave addresses [2:10].
- Support for next gen BMC (NPCM845).

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

Addressed comments from:
 - Wolfram Sang : https://lkml.org/lkml/2022/5/21/51

Changes since version 5:
 - Shorten npcm_i2caddr array since the number of supported i2c slave
   addresses is reduced.
 - Create a new patch from the original PATCH v5 08/10 to modify the slave
   transaction logic.

Changes since version 4:
 - Remove quotes around ref handle to nuvoton,sys-mgr in i2c binding
   document.
 - Keep the "longer line first" order.
 - Correct the SoB chain.
 - Modify the if statement in one line and add new line characters.
 - Modify the commit message format in the patch Remove own slave
   addresses 2:10. Correct the if statement in one line and shorten the
   debug messages.
 - Create a new patch to capitalize the one-line comment in the driver.

Changes since version 3:
 - Correct the const format in if condition in i2c binding document.
 - Add the oops message statement and register information in register
   access width patch.
 - Add the occurring rate of the i2c spurious interrupt issue and more
   details in driver's behavior to overcome this issue.
 - Address Andy's comments in the patch to support NPCM845.
 
Changes since version 2:
 - Keep old code as fallback, if getting nuvoton,sys-mgr property fails.
 - Fix the error reported by running 'make DT_CHECKER_FLAGS=-m 
   dt_binding_check'.
 - Make nuvoton,sys-mgr required for nuvoton,npcm845-i2c.
 - Correct the patch's subject about changing the way of getting GCR
   regmap and add the description about keeping old code as fallback
   if getting nuvoton,sys-mgr property fails.
 - Correct the patch title and description about removing the unused 
   variable clk_regmap.
 - Use the data field directly instead of the macros since macros are
   not constants anymore in this patch.
 
Changes since version 1:
 - Add nuvoton,sys-mgr property in NPCM devicetree.
 - Describe the commit message in imperative mood.
 - Modify the description in i2c binding document to cover NPCM series.
 - Add new property in i2c binding document.
 - Create a new patch for client address calculation.
 - Create a new patch for updating gcr property name.
 - Create a new patch for removing unused clock node.
 - Explain EOB in the commit description.
 - Create a new patch for correcting NPCM register access width.
 - Remove some comment since the corresponding logic no longer exists.
 - Remove fixes tag while the patch adds an additional feature.
 - Use devicetree data field to support NPCM845.

Tali Perry (2):
  i2c: npcm: Remove own slave addresses 2:10
  i2c: npcm: Correct slave role behavior

Tyrone Ting (3):
  dt-bindings: i2c: npcm: support NPCM845
  i2c: npcm: Support NPCM845
  i2c: npcm: Capitalize the one-line comment

 .../bindings/i2c/nuvoton,npcm7xx-i2c.yaml     |  25 ++-
 drivers/i2c/busses/Kconfig                    |   8 +-
 drivers/i2c/busses/Makefile                   |   2 +-
 drivers/i2c/busses/i2c-npcm7xx.c              | 176 ++++++++++--------
 4 files changed, 124 insertions(+), 87 deletions(-)

-- 
2.17.1