Re: [PATCH 4/8] i2c: sprd: Add IIC controller driver to support dynamic switching of 400K/1M/3.4M frequency

From: Chunyan Zhang
Date: Sun Sep 03 2023 - 23:27:51 EST


Hi Andi,

On Sun, 3 Sept 2023 at 05:08, Andi Shyti <andi.shyti@xxxxxxxxxx> wrote:
>
> Hi Chunyan,
>
> [...]
>
> > > When IIC-slaves supporting different frequencies use the same IIC
> >
> > %s/I2C/IIC

I just noticed that this was the reverse, I meant "%s/IIC/I2C" :)
That's saying we should use I2C in the whole driver.

> [...]
>
> > > #define SPRD_I2C_PM_TIMEOUT 1000
> > > /* timeout (ms) for transfer message */
> > > #define I2C_XFER_TIMEOUT 1000
> > > -
> > > +/* dynamic modify clk_freq flag */
> > > +#define I2C_3M4_FLAG 0x0100
> >
> > #define <space> I2C_3M4_FLAG <tab> 0x0100
> >
> > > +#define I2C_1M_FLAG 0x0080
> > > +#define I2C_400K_FLAG 0x0040
> > > +
> > > +#define I2C_FREQ_400K 400000
> > > +#define I2C_FREQ_1M 1000000
> > > +#define I2C_FREQ_3_4M 3400000
> >
> > ditto

I meant "#define <space> I2C_FREQ_3_4M <tab> 3400000"

>
> why should he use IIC instead of I2C. The file's defines start
> with I2C, for consistency he should use the same prefix.
>

Yes, I agree.

Thanks,
Chunyan