On Thu, Dec 10, 2020 at 11:31:01AM +0100, Jules Maselbas wrote: > Signed-off-by: Jules Maselbas <jmaselbas@xxxxxxxxx> > --- > drivers/usb/dwc2/core.h | 2 ++ > drivers/usb/dwc2/dwc2.c | 24 ++++++++++++++++++++++++ > drivers/usb/dwc2/dwc2.h | 1 + > 3 files changed, 27 insertions(+) > > diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h > index 090ca15fe..b9845b552 100644 > --- a/drivers/usb/dwc2/core.h > +++ b/drivers/usb/dwc2/core.h > @@ -466,6 +466,8 @@ struct dwc2 { > struct dwc2_hw_params hw_params; > struct dwc2_core_params params; > > + struct phy *phy; /* optional */ > + > #ifdef CONFIG_USB_DWC2_HOST > struct usb_host host; > u8 in_data_toggle[MAX_DEVICE][MAX_ENDPOINT]; > diff --git a/drivers/usb/dwc2/dwc2.c b/drivers/usb/dwc2/dwc2.c > index 282e6754b..9ab3b5b53 100644 > --- a/drivers/usb/dwc2/dwc2.c > +++ b/drivers/usb/dwc2/dwc2.c > @@ -50,6 +50,20 @@ static int dwc2_probe(struct device_d *dev) > dwc2->regs = IOMEM(iores->start); > dwc2->dev = dev; > > + dwc2->phy = phy_optional_get(dev, "usb2-phy"); > + if (IS_ERR(dwc2->phy)) { > + ret = PTR_ERR(dwc2->phy); > + return ret; > + } > + > + if (dwc2->phy) { > + ret = phy_power_on(dwc2->phy); > + if (ret == 0) > + ret = phy_init(dwc2->phy); > + if (ret) > + goto error; > + } Just like with clocks a NULL pointer is handled like a dummy phy, you can drop the if (dwc2->phy) tests here. Shouldn't phy_init() called before phy_power_on()? At least that's the order I find in the Kernel in several places. > dwc2_gadget_uninit(dwc2); > + > + if (dwc2->phy) { > + ret = phy_exit(dwc2->phy); > + if (ret == 0) > + phy_power_off(dwc2->phy); > + } Likewise phy_power_off() before phy_exit(). Sascha -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox