Two drivers already implement custom debugfs handling for their
i2c_adapter and more will come. So, let the core create a debugfs
directory per adapter and pass that to drivers for their debugfs files.
Convert the two existing users as well. Tested on a Renesas Lager board
with the i2c-gpio driver. npcm7xx was tested using QEMU with the
quanta-gsj target.

Changes since v1:
* rebased to something close to 6.7-rc1 which includes i2c/for-mergewindow
* tested npcm7xx with QEMU

Wolfram Sang (3):
  i2c: create debugfs entry per adapter
  i2c: gpio: move to per-adapter debugfs directory
  i2c: npcm7xx: move to per-adapter debugfs directory

 drivers/i2c/busses/i2c-gpio.c    | 34 ++++------------------
 drivers/i2c/busses/i2c-npcm7xx.c | 49 +++++---------------------------
 drivers/i2c/i2c-core-base.c      | 11 +++++++
 include/linux/i2c.h              |  2 ++
 4 files changed, 26 insertions(+), 70 deletions(-)

-- 
2.35.1

On Sun, Nov 12, 2023 at 05:54:40PM -0500, Wolfram Sang wrote:
> Two drivers already implement custom debugfs handling for their
> i2c_adapter and more will come. So, let the core create a debugfs
> directory per adapter and pass that to drivers for their debugfs files.
> Convert the two existing users as well. Tested on a Renesas Lager board
> with the i2c-gpio driver. npcm7xx was tested using QEMU with the
> quanta-gsj target.
> 
> Changes since v1:
> * rebased to something close to 6.7-rc1 which includes i2c/for-mergewindow
> * tested npcm7xx with QEMU
> 
> Wolfram Sang (3):
>   i2c: create debugfs entry per adapter
>   i2c: gpio: move to per-adapter debugfs directory
>   i2c: npcm7xx: move to per-adapter debugfs directory
> 

Applied to for-next, thanks!