diff options
author | Robert Jarzmik <robert.jarzmik@free.fr> | 2009-01-25 07:54:31 (GMT) |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-03-24 23:20:26 (GMT) |
commit | c2344f13b59e007d782a3e591ebc551bc583a8b7 (patch) | |
tree | 17eda364b35d5c064c47e45b50487912844a0fa3 /include | |
parent | dd44be6b17ac52238aa6c7f46b906d9fb76e7052 (diff) | |
download | linux-fsl-qoriq-c2344f13b59e007d782a3e591ebc551bc583a8b7.tar.xz |
USB: gpio_vbus: add delayed vbus_session calls
Call usb_gadget_vbus_connect() and ...disconnect() from a
workqueue rather than from an irq handler, allowing msleep()
calls in vbus_session. Update kerneldoc to match.
[ dbrownell@users.sourceforge.net: more kerneldoc updates ]
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include')
-rw-r--r-- | include/linux/usb/gadget.h | 6 | ||||
-rw-r--r-- | include/linux/usb/otg.h | 4 |
2 files changed, 8 insertions, 2 deletions
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index 0460a74..bbf45d5 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -598,6 +598,7 @@ static inline int usb_gadget_clear_selfpowered(struct usb_gadget *gadget) /** * usb_gadget_vbus_connect - Notify controller that VBUS is powered * @gadget:The device which now has VBUS power. + * Context: can sleep * * This call is used by a driver for an external transceiver (or GPIO) * that detects a VBUS power session starting. Common responses include @@ -636,6 +637,7 @@ static inline int usb_gadget_vbus_draw(struct usb_gadget *gadget, unsigned mA) /** * usb_gadget_vbus_disconnect - notify controller about VBUS session end * @gadget:the device whose VBUS supply is being described + * Context: can sleep * * This call is used by a driver for an external transceiver (or GPIO) * that detects a VBUS power session ending. Common responses include @@ -792,19 +794,20 @@ struct usb_gadget_driver { /** * usb_gadget_register_driver - register a gadget driver * @driver:the driver being registered + * Context: can sleep * * Call this in your gadget driver's module initialization function, * to tell the underlying usb controller driver about your driver. * The driver's bind() function will be called to bind it to a * gadget before this registration call returns. It's expected that * the bind() functions will be in init sections. - * This function must be called in a context that can sleep. */ int usb_gadget_register_driver(struct usb_gadget_driver *driver); /** * usb_gadget_unregister_driver - unregister a gadget driver * @driver:the driver being unregistered + * Context: can sleep * * Call this in your gadget driver's module cleanup function, * to tell the underlying usb controller that your driver is @@ -813,7 +816,6 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver); * to unbind() and clean up any device state, before this procedure * finally returns. It's expected that the unbind() functions * will in in exit sections, so may not be linked in some kernels. - * This function must be called in a context that can sleep. */ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver); diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h index 94df4fe..60a5257 100644 --- a/include/linux/usb/otg.h +++ b/include/linux/usb/otg.h @@ -86,6 +86,7 @@ extern int otg_set_transceiver(struct otg_transceiver *); extern struct otg_transceiver *otg_get_transceiver(void); extern void otg_put_transceiver(struct otg_transceiver *); +/* Context: can sleep */ static inline int otg_start_hnp(struct otg_transceiver *otg) { @@ -102,6 +103,8 @@ otg_set_host(struct otg_transceiver *otg, struct usb_bus *host) /* for usb peripheral controller drivers */ + +/* Context: can sleep */ static inline int otg_set_peripheral(struct otg_transceiver *otg, struct usb_gadget *periph) { @@ -114,6 +117,7 @@ otg_set_power(struct otg_transceiver *otg, unsigned mA) return otg->set_power(otg, mA); } +/* Context: can sleep */ static inline int otg_set_suspend(struct otg_transceiver *otg, int suspend) { |