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

Felipe Balbi balbi at ti.com
Mon Sep 8 06:44:54 PDT 2014


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 at ti.com> 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
;-)

-- 
balbi
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