diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2015-06-17 21:33:52 +0200 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-07-21 17:39:36 -0600 |
| commit | b2f219b081de964583a5621bc59d43eb75521598 (patch) | |
| tree | 5506064bbdadabdc4d785c64e7ff79f7a2203727 | |
| parent | 9b510df703d282effba4f56ac567aa8011d56e6b (diff) | |
| download | u-boot-b2f219b081de964583a5621bc59d43eb75521598.tar.gz | |
dm: usb: Allow usb host drivers to implement usb_reset_root_port
Allow usb uclass host drivers to implement usb_reset_root_port, this is
used by single port usb hosts which do not emulate a hub, such as otg
controllers.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Simon Glass <sjg@chromium.org>
| -rw-r--r-- | drivers/usb/host/usb-uclass.c | 16 | ||||
| -rw-r--r-- | include/usb.h | 5 |
2 files changed, 16 insertions, 5 deletions
diff --git a/drivers/usb/host/usb-uclass.c b/drivers/usb/host/usb-uclass.c index fd11cc6f6c..b0e6e71a8f 100644 --- a/drivers/usb/host/usb-uclass.c +++ b/drivers/usb/host/usb-uclass.c @@ -128,6 +128,17 @@ int usb_alloc_device(struct usb_device *udev) return ops->alloc_device(bus, udev); } +int usb_reset_root_port(struct usb_device *udev) +{ + struct udevice *bus = udev->controller_dev; + struct dm_usb_ops *ops = usb_get_ops(bus); + + if (!ops->reset_root_port) + return -ENOSYS; + + return ops->reset_root_port(bus, udev); +} + int usb_stop(void) { struct udevice *bus; @@ -268,11 +279,6 @@ int usb_init(void) return usb_started ? 0 : -1; } -int usb_reset_root_port(struct usb_device *udev) -{ - return -ENOSYS; -} - static struct usb_device *find_child_devnum(struct udevice *parent, int devnum) { struct usb_device *udev; diff --git a/include/usb.h b/include/usb.h index 2bb6a063c6..25f8543f8d 100644 --- a/include/usb.h +++ b/include/usb.h @@ -705,6 +705,11 @@ struct dm_usb_ops { * is read). This should be NULL for EHCI, which does not need this. */ int (*alloc_device)(struct udevice *bus, struct usb_device *udev); + + /** + * reset_root_port() - Reset usb root port + */ + int (*reset_root_port)(struct udevice *bus, struct usb_device *udev); }; #define usb_get_ops(dev) ((struct dm_usb_ops *)(dev)->driver->ops) |