>
> Simply reading this patch shows that it contains at least two errors.
Thanks for review.
>
> > @@ -4187,6 +4190,10 @@ static void hub_port_connect_change(struct
> usb_hub *hub, int port1,
> > }
> > }
> >
> > + if (hcd->phy && !hdev->parent &&
> > + !(portstatus & USB_PORT_STAT_CONNECTION))
> > + usb_phy_notify_disconnect(hcd->phy, udev->speed);
>
> What happens if udev is NULL (see the test in the next statement)?
>
I will add the condition of (udev), the thing I want to do is:
when the device is disconnected, the pcd interrupt will occur, and
the code will be there, I need to tell the phy driver, the disconnection
occurs, and the speed of the disconnected usb device.
> > +
> > /* Disconnect any existing devices under this port */
> > if (udev)
> > usb_disconnect(&hub->ports[port1 - 1]->child);
> > @@ -4212,13 +4219,6 @@ static void hub_port_connect_change(struct
> usb_hub *hub, int port1,
> > }
> > }
> >
> > - if (hcd->phy && !hdev->parent) {
> > - if (portstatus & USB_PORT_STAT_CONNECTION)
> > - usb_phy_notify_connect(hcd->phy, port1);
> > - else
> > - usb_phy_notify_disconnect(hcd->phy, port1);
>
> Is the second argument supposed to be a port number, like here, or a
> speed value, like above? Clearly something is wrong, either in the old
> code or in the new code.
>
The first patch at this patchset changes the API of usb_phy_notify_disconnect:
- /* notify phy connect status change */
- int (*notify_connect)(struct usb_phy *x, int port);
- int (*notify_disconnect)(struct usb_phy *x, int port);
+ /*
+ * Notify phy that
+ * - The controller's connect status change.
+ * - The controller's suspend/resume occurs, and the device
+ * is on the port.
+ */
+ int (*notify_connect)(struct usb_phy *x,
+ enum usb_device_speed speed);
+ int (*notify_disconnect)(struct usb_phy *x,
+ enum usb_device_speed speed);
> Alan Stern
>
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