On Sun, Apr 23, 2023 at 10:31:09AM +0800, Jiawen Wu wrote:
> > > +++ b/include/linux/platform_data/i2c-dw.h
> >
> > No way we need this in a new code.
>
> Do I have to rely on OF or ACPI if I need these parameters?
>
> >
> > > +struct dw_i2c_platform_data {
> > > + void __iomem *base;
> >
> > You should use regmap.
>
> The resource was mapped on the ethernet driver. How do I map it again
> with I2C offset?
Create a regmap MMIO and pass the pointer to the child driver via existing
private members. See how MFD drivers do that, e.g. intel_soc_pmic_*.c.
> > > + unsigned int flags;
> > > + unsigned int ss_hcnt;
> > > + unsigned int ss_lcnt;
> > > + unsigned int fs_hcnt;
> > > + unsigned int fs_lcnt;
> >
> > No, use device properties.
> >
> > > +};
--
With Best Regards,
Andy Shevchenko
