On Tue, Apr 07, 2015 at 06:35:49PM +0100, Srinivas Kandagatla wrote:
> On 06/04/15 16:04, Matt Porter wrote:
> >On Mon, Apr 06, 2015 at 09:11:05AM -0500, Rob Herring wrote:

> >>>The generic binding could really use a "read-only" property here as this
> >>>is a common hardware attribute for many nvmem devices. A serial EEPROM

> Correct me If am wrong.

> Regarding write protection/read-only, regmap already has provisions to
> support this feature. regmap would bail out with errors if any attempt to
> write to non-writable regions. It all depends on the data providers how they
> setup the regmap and the bindings for those are specific individual data
> providers I think.

There is the ability to flag read/write permissions in regmap but I
think there's some suggestion that this should be exposed to userspace
so that it's easier for it to handle things rather than just writing
then coping with any errors.