Re: Possible regression with commit 52221610d

[Stephen Warren]

On 12/14/2014 09:48 PM, Tim Kryger wrote:
> On Sat, Dec 13, 2014 at 11:22 PM, Bjorn Andersson <bjorn@xxxxxxx> wrote:
...
> > Or simply; what is vmmc (in the code) supposed to represent?
>
> Hi Bjorn,
>
> VMMC is the supply that delivers power out to the SD card itself (aka VDD).
>
> It is not the internal power rail/power domain of the host controller
> within the SoC.

I've seen this question come up quite a few times.

Should Documentation/devicetree/bindings/mmc/mmc.txt document the 
vmmc/vqmmc regulators? I assume they're considered shared across all 
MMC/SDHCI controller bindings?

Since that only covers DT, it might be nice to document vmmc-vs-vqmmc 
somewhere else too, such as right by the devm_regulator_get_optional() 
calls in mmc_regulator_get_supply() in drivers/mmc/core/core.c.
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