Re: [PATCH v2 0/6] i2c: core: Move client towards fwnode

From: Tomi Valkeinen
Date: Mon Apr 07 2025 - 07:35:08 EST


Hi Andy,

On 07/04/2025 12:55, Andy Shevchenko wrote:
The struct i2c_board_info has of_node and fwnode members. This is
quite confusing as they are of the same semantics and it's tend
to have an issue if user assigns both. Luckily there is only a
single driver that does this and fix was sent today. Nevertheless
the series moves the client handling code to use fwnode and deprecates
the of_node member in the respective documentation.

Tomi, can you test this series + the patch we discussed earlier so it works as
expected?

I tested this series, and then tested this series + "[PATCH v1 1/1] media: i2c: ds90ub960: Remove of_node assignment". I didn't see anything amiss in either case.

Tested-by: Tomi Valkeinen <tomi.valkeinen@xxxxxxxxxxxxxxxx>

I assume the ds90ub960 patch is the "single driver that does this and fix was sent today"? If so, I think that patch could have been included in this series as well, there's hardly a chance of conflicts with the one liner. And if applied separately, we probably need to apply the ub960 patch one kernel version later than this series.

Tomi


In v2:
- covered i2c-core-slave.c where it makes sense
- covered i2c-core-of.c where it makes sense
- rebased on top of the latest code base

Andy Shevchenko (6):
i2c: core: Drop duplicate check before calling OF APIs
i2c: core: Unify the firmware node type check
i2c: core: Switch to fwnode APIs to get IRQ
i2c: core: Reuse fwnode variable where it makes sense
i2c: core: Do not dereference fwnode in struct device
i2c: core: Deprecate of_node in struct i2c_board_info

drivers/i2c/i2c-core-base.c | 59 ++++++++++++++++++------------------
drivers/i2c/i2c-core-of.c | 1 -
drivers/i2c/i2c-core-slave.c | 11 ++++---
include/linux/i2c.h | 2 +-
4 files changed, 37 insertions(+), 36 deletions(-)