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| author | Roger Quadros <rogerq@ti.com> | 2016-04-12 11:33:29 +0300 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2016-04-18 12:35:18 +0300 |
| commit | 9772b47a4c2916d645c551228b6085ea24acbe5d (patch) | |
| tree | 0517e1fc9865c2a009404c182bcac4fe4fe544f4 /drivers/usb | |
| parent | e6bdf8195b4a43ebff71f25fc7ca5e436e79161a (diff) | |
| download | linux-stable-9772b47a4c2916d645c551228b6085ea24acbe5d.tar.gz linux-stable-9772b47a4c2916d645c551228b6085ea24acbe5d.tar.bz2 linux-stable-9772b47a4c2916d645c551228b6085ea24acbe5d.zip | |
usb: dwc3: gadget: Fix suspend/resume during device mode
Gadget controller might not be always active during system
suspend/resume as gadget driver might not have yet been loaded or
might have been unloaded prior to system suspend.
Check if we're active and only then perform
necessary actions during suspend/resume.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index d54a028cdfeb..8e4a1b195e9b 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2936,6 +2936,9 @@ void dwc3_gadget_exit(struct dwc3 *dwc) int dwc3_gadget_suspend(struct dwc3 *dwc) { + if (!dwc->gadget_driver) + return 0; + if (dwc->pullups_connected) { dwc3_gadget_disable_irq(dwc); dwc3_gadget_run_stop(dwc, true, true); @@ -2954,6 +2957,9 @@ int dwc3_gadget_resume(struct dwc3 *dwc) struct dwc3_ep *dep; int ret; + if (!dwc->gadget_driver) + return 0; + /* Start with SuperSpeed Default */ dwc3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(512); |