RE: [PATCH 6/6] da8xx: enable the use of the ICPFUNC in i2c-davinci

From: Nori, Sekhar
Date: Thu Apr 14 2011 - 05:27:25 EST

Hi Mike,

On Thu, Apr 14, 2011 at 04:34:34, Mike Williamson wrote:

> > The I2C driver implements a default platform data
> > so it should actually be legal for a DA8x board to
> > pass NULL platform data. In that case this line
> > will crash. You should either check for pdata to
> > be NULL or just let each board choose whether it
> > needs recovery (I think the better option).
> >
> I actually had a problem with using NULL for pdata with davinci I2C
> and had submitted a patch here that sort of fell on the floor. The
> problem was that the i2c_davinci_calc_clk_dividers is using
> platform_data without a check as described above. So at the moment
> using NULL doesn't really work, best as I can tell...

Looking at this mail chain, it looks like Ben was actually OK
with your first submission and just wanted you to update the
patch description saying that dev->platform_data is accessed
later in the code and that is why it needs to be updated.

I liked your first attempt better and may be you should
try another submission with the patch description updated.


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