On Wed, Sep 10, 2014 at 10:53 AM, Vivek Gautam <gautam.vivek@xxxxxxxxxxx> wrote: > On Wed, Sep 10, 2014 at 10:23 AM, Felipe Balbi <balbi@xxxxxx> wrote: >> On Wed, Sep 10, 2014 at 09:09:57AM +0530, Vivek Gautam wrote: >>> On Wed, Sep 10, 2014 at 9:07 AM, Vivek Gautam <gautam.vivek@xxxxxxxxxxx> wrote: >>> > adding Julius here, >>> >>> i think i had missed adding Julius for this entire series :-( >>> I should be more careful with the CC list in future. >>> Added his chromium id, since that seems to be more active. >>> >>> > >>> > >>> > On Tue, Sep 9, 2014 at 8:12 PM, Felipe Balbi <balbi@xxxxxx> wrote: >>> >> On Tue, Sep 09, 2014 at 07:19:50AM +0530, Vivek Gautam wrote: >>> >>> Hi, >>> >>> >>> >>> >>> >>> On Mon, Sep 8, 2014 at 7:14 PM, Felipe Balbi <balbi@xxxxxx> wrote: >>> >>> > Hi, >>> >>> > >>> >>> > On Mon, Sep 08, 2014 at 09:53:09AM +0530, Vivek Gautam wrote: >>> >>> >> On Fri, Sep 5, 2014 at 11:26 PM, Felipe Balbi <balbi@xxxxxx> wrote: >>> >>> >> > On Thu, Sep 04, 2014 at 12:01:19PM +0530, Vivek Gautam wrote: >>> >>> >> >> > Don't we have phy_power_on() >>> >>> >> >> > for that ? It looks like you could just as well do this from >>> >>> >> >> > phy_power_on() ? >>> >>> >> >> >>> >>> >> >> No, unfortunately keeping these calibration settings in phy_power_on() >>> >>> >> >> doesn't help, since we need to do this after XHCI reset has happened. >>> >>> >> > >>> >>> >> > teach xHCI about PHYs ? >>> >>> >> >>> >>> >> sorry i couldn't understand you here. >>> >>> >> Aren't we trying to do the same with Heikki's patch about dwc3 : >>> >>> >> [PATCH 6/6] usb: dwc3: host: convey the PHYs to xhci >>> >>> >> >>> >>> >> and the 2nd patch in this series : >>> >>> >> [PATCH v6 2/4] usb: host: xhci-plat: Get PHYs for xhci's hcds >>> >>> >> >>> >>> >> Is there something else that is expected ? >>> >>> > >>> >>> > right, use that to call phy_init() at the right time, then you need to >>> >>> > add a new ->calibrate() method which, likely, will only be used by you >>> >>> > ;-) >>> >>> >>> >>> so you mean, the xhci should itself call phy_init() at a time suitable, >>> >>> so that ->calibrate() is not required at all ? but wait, dwc3 does a phy_init() already, then how xhci will be able to do that again. We can't do phy_init() multiple times right ? >>> >>> >>> >>> i think you meant there - "then you __do not__ need to >>> >> >>> >> right :-) >>> > >>> > alright, i will prepare a patch for the suggested change. >>> > >>> > But AFAI remember we had discussion for this patch in earlier >>> > version, and Julius suggested to use a generic approach for such >>> > change wherein other users in future may be able to use the >>> > facility. >> >> right, and what's more generic than adding the support for PHYs straight >> into xHCI ? >> >> What I fear is that we end up opening the doors for every odd >> platform-specific operation to be added to the framework without really >> considering what needs to be done. That would defeat the idea of having >> a generic framework altogether. > > Ok, i will prepare the patch series as suggested and post it > to gather opinion from you. :-) > >> >> cheers >> >> -- >> balbi > > > > -- > Best Regards > Vivek Gautam > Samsung R&D Institute, Bangalore > India -- Best Regards Vivek Gautam Samsung R&D Institute, Bangalore India -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
