Re: [PATCH v6 4/4] phy: exynos5-usbdrd: Calibrate LOS levels for exynos5420/5800

[Vivek Gautam]

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 ?

i think you meant there - "then you __do not__ need to
> add a new ->calibrate() method which, likely,
will only be used by you", is it ?




-- 
Best Regards
Vivek Gautam
Samsung R&D Institute, Bangalore
India
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/