diff options
| author | Roger Quadros <rogerq@ti.com> | 2018-03-09 14:47:04 +0200 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2018-03-13 10:47:59 +0200 |
| commit | 498f0478aba425ba5555a72e72fe1ce9ee45a0bd (patch) | |
| tree | ba6e263fa4080fc85ef9304f7a9ea2c75519bb84 /drivers/usb/isp1760 | |
| parent | 365b7673c34fed58b0a04ee4a7a51102c65ccd2e (diff) | |
usb: dwc3: Prevent indefinite sleep in _dwc3_set_mode during suspend/resume
In the following test we get stuck by sleeping forever in _dwc3_set_mode()
after which dual-role switching doesn't work.
On dra7-evm's dual-role port,
- Load g_zero gadget driver and enumerate to host
- suspend to mem
- disconnect USB cable to host and connect otg cable with Pen drive in it.
- resume system
- we sleep indefinitely in _dwc3_set_mode due to.
dwc3_gadget_exit()->usb_del_gadget_udc()->udc_stop()->
dwc3_gadget_stop()->wait_event_lock_irq()
To fix this instead of waiting indefinitely with wait_event_lock_irq()
we use wait_event_interruptible_lock_irq_timeout() and print
and error message if there was a timeout.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/isp1760')
0 files changed, 0 insertions, 0 deletions