RE: [PATCH net-next v2 2/6] net: txgbe: Implement I2C bus master driver

Jiawen Wu
2023-04-17T01:47:02Z

On Saturday, April 15, 2023 11:11 PM, Andrew Lunn wrote:
> > I don't quite understand how to get the clock rate. I tried to add a software
> > node of clock with property ("clock-frequency", 100000) and referenced by
> > I2C node. But it didn't work.
>
> I've not spent the time to fully understand the code, so i could be
> very wrong....
>
> From what you said above, you clock is fixed? So maybe you can do
> something like:
>
> mfld_get_clk_rate_khz()
>
> https://elixir.bootlin.com/linux/latest/source/drivers/i2c/busses/i2c-designware-pcidrv.c#L97
>
> How are you instantiating the driver? Can you add to
> i2_designware_pci_ids[]?
>
> Andrew
>

There is no PCI ID for our I2C device, so I register the platform I2C device.