diff options
| author |   Grigor Tovmasyan <Grigor.Tovmasyan@synopsys.com> | 2018-08-29 21:02:28 +0400 |
|---|---|---|
| committer |   Felipe Balbi <felipe.balbi@linux.intel.com> | 2018-10-02 10:50:34 +0300 |
| commit | 4abe453750db8ada8b0a56c45c89ab18920e9a80 (patch) | |
| tree | afe4a2d70ed84bbc846677c7f17b5daf949c1755 /drivers/usb | |
| parent | usb: dwc2: gadget: Program GREFCLK register (diff) | |
| download | linux-dev-4abe453750db8ada8b0a56c45c89ab18920e9a80.tar.xz linux-dev-4abe453750db8ada8b0a56c45c89ab18920e9a80.zip | |
usb: dwc2: gadget: enable WKUP_ALERT interrupt
WKUP_ALERT interrupt should be unmask when lpm mode is enabled.
This interrupt is asserted when the device is in L1 for the duration
mentioned in GREFCLK.SOF_CNN_WKUP_ALERT. This is used to alert SW to
initiate Remote wake up so that the device resumes in time in order not
to lose sync with the host frame number.
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/dwc2/gadget.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index e8dd6897e2c3..24bd9fdabc67 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -5003,6 +5003,10 @@ void dwc2_gadget_init_lpm(struct dwc2_hsotg *hsotg) val |= hsotg->params.besl ? GLPMCFG_ENBESL : 0; dwc2_writel(hsotg, val, GLPMCFG); dev_dbg(hsotg->dev, "GLPMCFG=0x%08x\n", dwc2_readl(hsotg, GLPMCFG)); + + /* Unmask WKUP_ALERT Interrupt */ + if (hsotg->params.service_interval) + dwc2_set_bit(hsotg, GINTMSK2, GINTMSK2_WKUP_ALERT_INT_MSK); } /** |