Re: [PATCH 1/2] regmap: Support half writes and padding betweenregister and value.

[Mark Brown]

On Fri, Sep 09, 2011 at 10:44:57AM +0100, Jonathan Cameron wrote:
> On 09/08/11 17:27, Mark Brown wrote:

> > Please do a patch adding padding separately - that does seem like a
> > useful thing to have in general, with the option of having it both
> > before and after the register.

> Happy to do it separately, but not sure the padding before the register
> address is a real use case.  You pad after to give the device time to
> respond, before doesn't make much sense to me on a register based device...
> I'll change the naming to make it explicit that it is after the register though
> so as to leave room for this to be added in future.

Some devices apparently use an entire byte or word with a magic flag in
it to distinguish reads and writes.  These end up looking like 16 bit
registers with only the lower 8 bits actually used in the current code.
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