On 2015/10/19 18:54, Ulf Hansson wrote:

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2) Considering the runtime PM case for the sdhci device. Typically you
can gate clocks etc at runtime suspend to save power, but what about
the phy? Can you power off it in runtime suspend?

yes, we can power off it in runtime suspend. So we can append some patches
later to introduce runtime pm for sdhci-of-arasan?

Yes, that's fine. I would thus expect that you want to do phy power
off/on from the runtime PM callbacks, right!?

If that's the case I think $subject patch should deal with *both* phy
init and phy power on during ->probe().

yes. I will do phy power_off/on from runtime pm for the next version of 
$subject patchset.

Thanks.

Kind regards
Uffe
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Best Regards
Shawn Lin