Re: [PATCH 0/5] Optional regulator support

[Chris Ball <cjb@laptop.org>]

Hi,

On Tue, Jul 30 2013, Mark Brown wrote:
> This patch series adds a variant of regulator_get() which allows
> regulator consumers to tell the core that the supply they are requesting
> may genuinely be absent in the system.  The goal is to help address some
> of the problems with handling errors in regulator_get() in drivers that
> are newly converted to the regulator API by allowing the core to provide
> stub regulators for supplies that aren't hooked up without disrupting
> the operation of drivers like MMC drivers which may genuinely not have
> some of their supplies hooked up.
>
> Currently the code simply introduces a new API call with exactly the
> same implementation as regulator_get() so there should be zero impact
> from the series other than a slightly larger kernel.

Looks good:

Acked-by: Chris Ball <cjb@laptop.org>

> Right now all the MMC users are converted over as-is, though it does
> look like drivers such as sdhci really ought to be insisting on having a
> regulator for VMMC in the same way that the MMC core helper does (and
> indeed in that case it looks like it ought to be converted over to the
> core code).

I didn't follow this part -- I don't think the MMC core insists on a
VMMC regulator, and I don't think sdhci should either, because e.g.
an x86 laptop isn't going to have one.  What am I missing?

Thanks,

- Chris.
-- 
Chris Ball   <cjb@laptop.org>   <http://printf.net/>