On Fri, Jun 9, 2017 at 1:18 AM, Keerthy <j-keerthy@xxxxxx> wrote:
[snip]
>>
>>>>
>>>> -static const struct i2c_device_id tps65217_id_table[] = {
>>>> - {"tps65217", TPS65217},
>>>> - { /* sentinel */ }
>>>> -};
>>>> -MODULE_DEVICE_TABLE(i2c, tps65217_id_table);
>>
>> Unfortunately you can't get rid of this table (yet) since the I2C
>> subsystem always reports a MODALIAS of the form "i2c:tps65217" even
>> when the devices have been registered via OF. There are only a couple
>> of drivers more to clean-up and then I'll post a patch that fixes the
>> I2C core to report a proper OF modalias. But for now, removing will
>> mean that module autoload will be broken for this driver.
>
> So this means whole logic of probe_new without i2c_device_id is not
> ready? I will have to revert all that logic right?
>
No, that's not what I meant.
It's absolutely correct for drivers that can't be build as a module
(i.e: have a boolean instead of tristate Kconfig symbol) or if you
want to get rid of the struct i2c_device_id pointed passed to your
probe callback since isn't used in the driver.
But it's not enough to get rid of the struct i2c_device_id table for
the reason I mentioned before.
> Lee Jones,
>
> Does that mean even for LP87565 driver we need MODULE_DEVICE_TABLE for
> module autoload?
>
I guess you are talking about [0], right?
Yes, it's needed because the driver can be built as a module.
[0]: https://lkml.org/lkml/2017/5/19/394
Best regards,
Javier
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