Re: [PATCH v2] hwmon: (tmp401) Add of_match_table

Guenter Roeck
2022-05-02T13:57:59Z

On 5/2/22 02:19, Camel Guo wrote:
> When tmp401 is built as kernel module, it won't be automatically loaded
> even through there is a device node in the devicetree. e.g:
> i2c {
> #address-cells = <1>;
> #size-cells = <0>;
>
> sensor@4c {
> compatible = "ti,tmp401";
> reg = <0x4c>;
> };
> };
> In order to make sure it is loaded automatically, this commit adds
> of_match_table for tmp401.
>

As mentioned before, historically i2c devices would instantiate based
on the i2c match table. You are claiming that this is no longer the case.
The above is no evidence; that would require a log output on an affected
system showing that the sensors are not or no longer longer instantiated.

I am not absolutely opposed to adding the nodes, but the explanation
needs to match reality. If you can not provide evidence from an actual
boot log, I'll have to implement a tmp401 device model in qemu and test
myself. That will take a while.

Guenter