Re: [PATCH v2 2/2] usb: dwc3: remove generic PHY calibrate() calls

Jochen Sprickerhof
2019-07-28T16:08:04Z

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Hi Marek,

Tested on my XU4
Tested-by: Jochen Sprickerhof <jochen@sprickerhof.de>

* Anand Moon <linux.amoon@gmail.com> [2019-07-23 00:30]:
>Hi Marek,
>
>On Fri, 19 Jul 2019 at 13:43, Marek Szyprowski <m.szyprowski@samsung.com> wrote:
>>
>> Calls to USB2 generic PHY calibrate() method has been moved to HCD core,
>> which now successfully handles generic PHYs and their calibration after
>> every HCD reset. This fixes all the timing issues related to PHY
>> calibration done directly from DWC3 driver: incorrect operation after
>> system suspend/resume or USB3.0 detection failure when XHCI-plat driver
>> compiled as separate module.
>>
>
>Tested on my XU3 / XU4 / HC1
>Tested-by: Anand Moon <linux.amoon@gmail.com>
>
>
>> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
>> ---
>> drivers/usb/dwc3/core.c | 2 --
>> 1 file changed, 2 deletions(-)
>>
>> diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
>> index c9bb93a2c81e..7dd6d419254d 100644
>> --- a/drivers/usb/dwc3/core.c
>> +++ b/drivers/usb/dwc3/core.c
>> @@ -168,7 +168,6 @@ static void __dwc3_set_mode(struct work_struct *work)
>> otg_set_vbus(dwc->usb2_phy->otg, true);
>> phy_set_mode(dwc->usb2_generic_phy, PHY_MODE_USB_HOST);
>> phy_set_mode(dwc->usb3_generic_phy, PHY_MODE_USB_HOST);
>> - phy_calibrate(dwc->usb2_generic_phy);
>> }
>> break;
>> case DWC3_GCTL_PRTCAP_DEVICE:
>> @@ -1166,7 +1165,6 @@ static int dwc3_core_init_mode(struct dwc3 *dwc)
>> dev_err(dev, "failed to initialize host\n");
>> return ret;
>> }
>> - phy_calibrate(dwc->usb2_generic_phy);
>> break;
>> case USB_DR_MODE_OTG:
>> INIT_WORK(&dwc->drd_work, __dwc3_set_mode);
>> --
>> 2.17.1
>>
>

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