diff options
| author |   Manu Gautam <mgautam@codeaurora.org> | 2017-09-27 16:49:21 +0530 |
|---|---|---|
| committer |   Felipe Balbi <felipe.balbi@linux.intel.com> | 2017-10-24 12:51:19 +0300 |
| commit | 8eed00b237a2844dbe6bc2bac5c0b2657f9f194b (patch) | |
| tree | b3eb2e1ecafbb41f6aa7074b0c548a6642824722 /drivers/usb/dwc3/core.c | |
| parent | usb: dwc3: Don't reinitialize core during host bus-suspend/resume (diff) | |
| download | linux-dev-8eed00b237a2844dbe6bc2bac5c0b2657f9f194b.tar.xz linux-dev-8eed00b237a2844dbe6bc2bac5c0b2657f9f194b.zip | |
usb: dwc3: pci: Runtime resume child device from wq
Driver currently resumes and increments pm usage_count
of its child device (dwc3 main) from its runtime_resume
handler. This requires dwc3 runtime_resume to perform
pm_runtime_put to decrement the pm usage_count. However
runtime_put from dwc3 happens for non pci drivers
(e.g. dwc3-if-simple.c) as well which results in dwc3
pm usage_count becoming negative after couple of
runtime suspend resume iterations. Fix this by
performing runtime_get/put from dwc3-pci driver only
using workqueue.
Signed-off-by: Manu Gautam <mgautam@codeaurora.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/dwc3/core.c')
| -rw-r--r-- | drivers/usb/dwc3/core.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index f75613fd0de0..23bb1925c9aa 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -1391,7 +1391,6 @@ static int dwc3_runtime_resume(struct device *dev) } pm_runtime_mark_last_busy(dev); - pm_runtime_put(dev); return 0; } |