Re: [PATCH] mmc: core: Quieten "could not set regulator OCR" error.

[Mark Brown <broonie@opensource.wolfsonmicro.com>]

On Thu, Aug 30, 2012 at 01:25:58PM -0400, Chris Ball wrote:
> On Thu, Aug 30 2012, Mark Brown wrote:

> > Conversely there is nothing stopping other regulator drivers having
> > similar properties to the dummy driver, or constraints stopping them
> > implementing things.  If the MMC framework wants to silently accept
> > regulators that don't allow the voltage to be set then the MMC framework
> > should enumerate the range of voltages which can be set using the
> > regulator it has and then take appropriate action.

> I didn't do this because I don't want to silently accept real regulators
> with insufficient voltage ranges, because that would make it harder to
> debug real MMC failures.

> Sounds like my response to the bug reports should be "persuade your
> distro kernel maintainers to turn off CONFIG_REGULATOR" -- I'll try
> doing that.

Or alternatively persuade someone to provide the appropriate fixed
voltage regulators as part of instantiating the MMC device on these
systems.