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authorHans de Goede <hdegoede@redhat.com>2015-06-17 21:33:52 +0200
committerSimon Glass <sjg@chromium.org>2015-07-21 17:39:36 -0600
commitb2f219b081de964583a5621bc59d43eb75521598 (patch)
tree5506064bbdadabdc4d785c64e7ff79f7a2203727 /drivers
parent9b510df703d282effba4f56ac567aa8011d56e6b (diff)
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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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/usb/host/usb-uclass.c16
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/usb/host/usb-uclass.c b/drivers/usb/host/usb-uclass.c
index fd11cc6..b0e6e71 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;