[PATCH] staging: nvec: convert to use platform register andmfdcells

Joe Perches joe at perches.com
Fri Aug 5 20:11:24 UTC 2011


On Fri, 2011-08-05 at 22:07 +0200, Marc Dietrich wrote:
> On Friday 05 August 2011 21:31:05 Joe Perches wrote:
> > On Fri, 2011-08-05 at 21:03 +0200, Marc Dietrich wrote:
> > > On Sunday 24 July 2011 23:01:19 Joe Perches wrote:
> > > > On Sun, 2011-07-24 at 21:56 +0200, Marc Dietrich wrote:
> > > > > This patch converts the nvec to use mfd cells and improves the
> > > > > registration of the platform driver. The child drivers are also
> > > > > converted to use mfd cells and platform registration.
[]
> > > > >  static unsigned char EC_DISABLE_EVENT_REPORTING[]
> > > > >  =	{'\x04','\x00','\x00'};
> > > > Please use const where appropriate.
> > > while these message strings are constant most of the time, there are
> > > places where they aren't. So the nvec_write_{a}sync functions (which
> > > are feeded by these strings) cannot be called with a const argument.
> > That doesn't matter.
> > nvec_write_async should be changed to:
> > void nvec_write_async(struct nvec_chip *nvec, const unsigned char *data,
> > short size)
> > and nvec_write_sync should be:
> > static struct nvec_msg *nvec_write_sync(struct nvec_chip *nvec, const
> > unsigned char *data, short size)
> sure, but does this also work if *data is not constant, e.g. points to a buffer 
> (e.g. on the stack) with variable content, as mentioned above? 

Yes it does.

Besides, internally nvec_write_async does a memcpy of the data.




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