Re: [PATCH v2 01/12] i2c: allow setting the parent device and OF node through the adapter struct

[Kalle Niemi]

On 3/2/26 10:55, Bartosz Golaszewski wrote:
> On Mon, Mar 2, 2026 at 8:47 AM Kalle Niemi <kaleposti@xxxxxxxxx> wrote:
>> On 2/23/26 11:05, Bartosz Golaszewski wrote:
>>> In order to stop i2c bus drivers from dereferencing the struct device
>>> embedded in struct i2c_adapter, let's allow configuring the parent
>>> device and OF-node of the adapter directly through dedicated fields.
>>> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxxxxxxxx>
>>> ---
>> Hello,
>> Automated driver test system bisected this commit to be the first bad
>> commit, linux-next next-20260227 was tested. Failed tests include driver
>> tests for ROHM PMIC and accelerometers, which are connected to
>> BeagleBone Black.
>> The failed driver tests all fail to first i2cget and the tests stop
>> there: "Could not open file '/dev/i2c-2' or 'dev/i2c/2': No such file or
>> directory".
> Wolfram: well, now it would actually be useful to know which commit
> exactly is the culprit so maybe splitting the changes is not a bad
> idea after all.
> Kalle: which i2c bus driver fails here? Any errors in kernel log?
> Bart

Hello Bart,

i2c-1 and i2c-2 are failing. I am not seeing any i2c errors in kernel log. I got two failures without the dmesg available (this is bugged test sequence, and not a kernel crash), but those got the same stdout message "Could not open file ...." as all others.

-Kalle