On 01/20/2014 06:48 PM, Hans de Goede wrote: > Hi, > > On 01/20/2014 03:41 PM, Roger Quadros wrote: >> Hi, >> >> Some platforms have a PHY hooked up to the SATA controller. >> The PHY needs to be initialized and powered up for SATA to work. >> We do that using the Generic PHY framework in PATCH 3. >> >> In order to support SATA on the OMAP platforms we need to runtime >> resume the device before use. PATCH 4 takes care of that. > > Thanks for keeping me in the loop on this. I'm afraid this conflicts > quite a bit with my recent ahci_platform.c work, not a big problem > really, the series can go in either way. > > Your phy support will slot nicely into the new ahci_platform_get_resources > and ahci_platform_enable_resources functions my refactoring introduces, > looking at it from this pov it might be better / easier to rebase your series > on top of the v4 of my series I've just send. > > Which brings me to one comment about your series why are you not doing > phy_exit > and phy_init on suspend resp. resume ? The phy can use quite a bit of power, > if the phy init / exit end up in ahci_platform_enable_resources / > ahci_platform_disable_resources, this will happen automatically for better or > worse. So it would be good to test if this would work or not ...
Right. Bartlomiej had pointed this out earlier, but I just wasn't very sure about it. Is it sufficient to just call phy_power_off() in suspend and phy_power_on() in resume? Or do we call phy_exit() and phy_init() respectively as well. Kishon, any suggestions? cheers, -roger -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
