FW: [PATCH] mmc: mmci: Gate the clock in runtime suspend to save power

Ulf Hansson ulf.hansson at linaro.org
Mon Jan 7 09:20:08 EST 2013

On 13 December 2012 12:45, Kevin Liu <keyuan.liu at gmail.com> wrote:
> 2012/12/13 Ulf Hansson <ulf.hansson at linaro.org>:
>> On 13 December 2012 11:11, Russell King - ARM Linux
>> <linux at arm.linux.org.uk> wrote:
>>> On Thu, Dec 13, 2012 at 10:04:46AM +0100, Ulf Hansson wrote:
>>>> Anyway, this need to be thought of as future step, since this patch is
>>>> not changing anything to that sequence as Kevin also is pointing out.
>>> Given that Kevin is talking about stuff in sdhci as if it affects MMCI,
>>> and that neither of you have picked that up, you're *still* not gaining
>>> any confidence from me that you're actually thinking about the changes
>>> you're making.  So I'm not really caring about how many acks your patches
>>> get, I'm still going to be reluctant to apply them without thinking about
>>> them for a bit.
>> MMCI is doing "pm_runtime_get_sync" in it suspend. So the same
>> principles as Kevin is describing for sdhci goes for MMCI. Sorry if
>> this was not clearly pointed out.
> sorry for my unclear words. I just use sdhci directly to explain this.
> It's similar for sdhci and mmci on this point. pm_runtime is
> temporarily disabled during suspend/resume.
> Thanks
> Kevin

Russell, is this enough for convincing you that everything has been
thought of in this patch? Can we merge this?

Kind regards
Ulf Hansson

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