Re: [PATCH] mmc: agressive clocking framework v9

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On Nov 8, 2010, at 1:37 AM, Linus Walleij wrote:

> Ohad Ben-Cohen wrote:
> 
>> So the decision whether to enable clock gating for SDIO should not be
>> static (eventually. I'm not saying this is something Linus should take
>> care of in his patch, it's up to us to make this work). By default,
>> SDIO clock gating should be disabled, but we need to allow drivers to
>> explicitly enable it if supported.
> 
> I currently (patch v8) disable gating for all SDIO cards,
> but I guess there are two approaches to cases where you'd
> like to enable it:
> 
> - Card (including SDIO device) whitelisting.

do not understand the term whitelisting ..  please explain.

> 
> - Host whitelisting - for the case where as gateable SDIO
>  device is soldered to the bus.
> 
> The first looks like big-ish so would be a separate patch, but a
> host flag for the latter like MMC_CAP_GATE_SDIO can easily be
> folded into a v10 of this patch.

Nico was not in favor of this.  He thought it best to have the core/ layer handle this.


> 
> Is that desireable?
> 
> Yours,
> Linus Walleij

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