diff options
| author | Artur Petrosyan <Arthur.Petrosyan@synopsys.com> | 2018-05-23 15:26:08 +0200 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2018-06-19 11:48:12 +0200 |
| commit | 22bb5cfdf13ae70c6a34508a16cfeee48f162443 (patch) | |
| tree | 07c54d46f0aecca3fd84acf2786b0db440c439b6 | |
| parent | usb: dwc3: qcom: mark PM functions as __maybe_unused (diff) | |
| download | linux-22bb5cfdf13ae70c6a34508a16cfeee48f162443.tar.xz linux-22bb5cfdf13ae70c6a34508a16cfeee48f162443.zip | |
usb: dwc2: Fix host exit from hibernation flow.
In case when a hub is connected to DWC2 host
auto suspend occurs and host goes to
hibernation. When any device connected to hub
host hibernation exiting incorrectly.
- Added dwc2_hcd_rem_wakeup() function call to
exit from suspend state by remote wakeup.
- Increase timeout value for port suspend bit to be set.
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Artur Petrosyan <arturp@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| -rw-r--r-- | drivers/usb/dwc2/hcd.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c index edaf0b6af4f0..bae08a7d7abd 100644 --- a/drivers/usb/dwc2/hcd.c +++ b/drivers/usb/dwc2/hcd.c @@ -5435,7 +5435,7 @@ int dwc2_host_enter_hibernation(struct dwc2_hsotg *hsotg) dwc2_writel(hprt0, hsotg->regs + HPRT0); /* Wait for the HPRT0.PrtSusp register field to be set */ - if (dwc2_hsotg_wait_bit_set(hsotg, HPRT0, HPRT0_SUSP, 300)) + if (dwc2_hsotg_wait_bit_set(hsotg, HPRT0, HPRT0_SUSP, 3000)) dev_warn(hsotg->dev, "Suspend wasn't generated\n"); /* @@ -5616,6 +5616,8 @@ int dwc2_host_exit_hibernation(struct dwc2_hsotg *hsotg, int rem_wakeup, return ret; } + dwc2_hcd_rem_wakeup(hsotg); + hsotg->hibernated = 0; hsotg->bus_suspended = 0; hsotg->lx_state = DWC2_L0; |