Re: [PATCH 1/2] i2c: pxa: migrate to new i2c_slave APIs

From: Patrick Williams
Date: Tue Oct 01 2019 - 12:39:30 EST


Thanks for the review Andy.

On Tue, Oct 01, 2019 at 07:29:13PM +0300, Andy Shevchenko wrote:
>
>
> On Tue, Oct 01, 2019 at 10:59:59AM -0500, Patrick Williams wrote:
> There are quite a few people in the Cc list. I'm not sure they all are
> interested in this. I deliberately dropped few names, sorry, if I was mistaken.

Agree it was kind of a big list. Just chose what was given to me by
get_maintainer.pl. It seems like there isn't a direct identified
maintainer of this file.

>
> > + if (isr & ISR_RWM) {
> > + u8 byte = 0;
> > +
> > + i2c_slave_event(i2c->slave, I2C_SLAVE_READ_REQUESTED,
> > + &byte);
> > + writel(byte, _IDBR(i2c));
> > + } else {
> > + i2c_slave_event(i2c->slave, I2C_SLAVE_WRITE_REQUESTED,
> > + NULL);
> > + }
>
> Hmm... Perhaps
>
> u8 byte = 0;
>
> i2c_slave_event(i2c->slave, I2C_SLAVE_READ_REQUESTED, &byte);
> if (isr & ISR_RWM)
> writel(byte, _IDBR(i2c));
>

The two different paths also require READ_REQUEST vs WRITE_REQUESTED. I
could do a ternary there but it seemed more obvious to just unroll the
logic.

--
- Patrick