Start clocks on rising edge of the Vbus signal, stop clocks on falling
edge of the Vbus signal.
Add suspend/resume with wakeup support.
Changes since v6:
* Removed single IRQ edge support, which was used to wake up only on
device connection. We don't have yet a clean solution to handle IRQ
controller with (at91sam9x5) and without (at91rm9200) single edge
support. Rework PATCH v6 4/5 removed, we don't need this one anymore.
Changes since v5:
* Some boards does not support configuring a GPIO interrupt on a specific
edge (rising only or falling only). As suggested added a config boolean
to distinguish between boards with and without support
* Added a missing mutex_lock()/unlock() in usba_udc_suspend(), we need to
protect usba_stop() because usba_start() and usba_stop() can still
be called by Vbus IRQ handler.
* Rebased the full series on linux-next
* Patch cleaning with the help of checkpatch.pl
Changes since v4:
* Now using IRQ_NOAUTOEN flag to remove the unused check for
udc->driver is not NULL in the Vbus IRQ.
* Reworked the start/stop of clocks on Vbus edges to prepare for
suspend/resume support, factorised start and stop procedures
* New patch, suspend/resume for USBA with wakeup support
Changes since v3:
* Added stable tag for the first patch
* As suggested, removed the unused check for udc->driver is NULL in
Vbus IRQ by requesting IRQ after udc->driver is set and by releasing
IRQ before udc->driver is cleared
* Rebased the core patch of this series against the just explained changes
Changes since v2:
* Use spin_lock_irqsave/unlock_irqrestore instead of spin_lock/unlock in
threaded interrupt because we are not in irq context anymore
* Removed useless and probably harmful IRQF_NO_SUSPEND from
devm_request_threaded_irq() flags
Changes since v1:
* Using a threaded irq and mutex instead of spinclock as suggested
* Moved a silently fixed bug in a separate patch (1/2)
Sylvain Rochet (4):
USB: gadget: atmel_usba_udc: Fixed vbus_prev initial state
USB: gadget: atmel_usba_udc: Request an auto disabled Vbus signal IRQ
instead of an auto enabled IRQ request followed by IRQ disable
USB: gadget: atmel_usba_udc: Start clocks on rising edge of the Vbus
signal, stop clocks on falling edge of the Vbus signal
USB: gadget: atmel_usba_udc: Add suspend/resume with wakeup support
drivers/usb/gadget/udc/atmel_usba_udc.c | 208 ++++++++++++++++++++++++--------
drivers/usb/gadget/udc/atmel_usba_udc.h | 4 +
2 files changed, 159 insertions(+), 53 deletions(-)
--
2.1.4
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