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SubjectRe: [PATCH V3] mtd: Add DiskOnChip G3 support
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On Tue, 2011-09-20 at 17:44 +0200, Robert Jarzmik wrote:
> Artem Bityutskiy <dedekind1@gmail.com> writes:
>
> > I really feel unsure about merging this driver because no one reviewed
> > it. On the surface it does look neat, though. Could you please CC lkml
> > on next submission?
> OK, when we have covered your comments, I'll report a V4 to lkml as well.
>
> > On Mon, 2011-09-19 at 19:43 +0200, Robert Jarzmik wrote:
> >> +static void doc_delay(struct docg3 *docg3, int nbNOPs)
> >> +{
> >> + int i;
> >> +
> >> + doc_dbg("NOP x %d\n", nbNOPs);
> >> + for (i = 0; i < nbNOPs; i++)
> >> + doc_writeb(0, DoC_NOP);
> >> +}
> >
> > Why you implement dalaying this way, instead of using udelay/mdelay?
> That's from observation, as I have no specification available.
>
> From my understanding, the clock applied to the chip can be variable, but the
> memory bus writes ensure the necessary time, as the NOP write takes as much time
> as the DOCG3 decides it to last.

OK, would be nice to have this kind of comment in that function.

> >> + };
> >
> > Hmm, looks like something which should be generic, not DoC-specific.
> True, but it's not available yet.
> And as it's not available, and I don't think debugfs will accept such a patch, I
> think I'll leave it here. And if you wish, I'll fill in a separate patch to
> debugfs, and *if* it's merged, I'll remove that part then.

Fine with me.

--
Best Regards,
Artem Bityutskiy



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