diff options
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/ehci-hcd.c | 34 |
1 files changed, 22 insertions, 12 deletions
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 85adbf44e8..9471bcb362 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -303,23 +303,33 @@ static void ehci_update_endpt2_dev_n_port(struct usb_device *udev, * in the tree before that one! */ #ifdef CONFIG_DM_USB + /* + * When called from usb-uclass.c: usb_scan_device() udev->dev points + * to the parent udevice, not the actual udevice belonging to the + * udev as the device is not instantiated yet. So when searching + * for the first usb-2 parent start with udev->dev not + * udev->dev->parent . + */ struct udevice *parent; + struct usb_device *uparent; + + ttdev = udev; + parent = udev->dev; + uparent = dev_get_parentdata(parent); - for (ttdev = udev; ; ) { - struct udevice *dev = ttdev->dev; + while (uparent->speed != USB_SPEED_HIGH) { + struct udevice *dev = parent; - if (dev->parent && - device_get_uclass_id(dev->parent) == UCLASS_USB_HUB) - parent = dev->parent; - else - parent = NULL; - if (!parent) + if (device_get_uclass_id(dev->parent) != UCLASS_USB_HUB) { + printf("ehci: Error cannot find high speed parent of usb-1 device\n"); return; - ttdev = dev_get_parentdata(parent); - if (!ttdev->speed != USB_SPEED_HIGH) - break; + } + + ttdev = dev_get_parentdata(dev); + parent = dev->parent; + uparent = dev_get_parentdata(parent); } - parent_devnum = ttdev->devnum; + parent_devnum = uparent->devnum; #else ttdev = udev; while (ttdev->parent && ttdev->parent->speed != USB_SPEED_HIGH) |
