releases/4.14.44/usb-dwc3-omap-don-t-miss-events-during-suspend-resume.patch

   1 From foo@baz Thu May 24 11:09:34 CEST 2018
   2 From: Roger Quadros <rogerq@ti.com>
   3 Date: Mon, 22 Jan 2018 15:01:42 +0200
   4 Subject: usb: dwc3: omap: don't miss events during suspend/resume
   5
   6 From: Roger Quadros <rogerq@ti.com>
   7
   8 [ Upstream commit c49f63055e252810e5d6c83a4943b18db16b3cd8 ]
   9
  10 The USB cable state can change during suspend/resume
  11 so be sure to check and update the extcon state.
  12
  13 Signed-off-by: Roger Quadros <rogerq@ti.com>
  14 Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
  15 Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
  16 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  17 ---
  18  drivers/usb/dwc3/dwc3-omap.c |   16 ++++++++++++++++
  19  1 file changed, 16 insertions(+)
  20
  21 --- a/drivers/usb/dwc3/dwc3-omap.c
  22 +++ b/drivers/usb/dwc3/dwc3-omap.c
  23 @@ -590,9 +590,25 @@ static int dwc3_omap_resume(struct devic
  24         return 0;
  25  }
  26
  27 +static void dwc3_omap_complete(struct device *dev)
  28 +{
  29 +       struct dwc3_omap        *omap = dev_get_drvdata(dev);
  30 +
  31 +       if (extcon_get_state(omap->edev, EXTCON_USB))
  32 +               dwc3_omap_set_mailbox(omap, OMAP_DWC3_VBUS_VALID);
  33 +       else
  34 +               dwc3_omap_set_mailbox(omap, OMAP_DWC3_VBUS_OFF);
  35 +
  36 +       if (extcon_get_state(omap->edev, EXTCON_USB_HOST))
  37 +               dwc3_omap_set_mailbox(omap, OMAP_DWC3_ID_GROUND);
  38 +       else
  39 +               dwc3_omap_set_mailbox(omap, OMAP_DWC3_ID_FLOAT);
  40 +}
  41 +
  42  static const struct dev_pm_ops dwc3_omap_dev_pm_ops = {
  43
  44         SET_SYSTEM_SLEEP_PM_OPS(dwc3_omap_suspend, dwc3_omap_resume)
  45 +       .complete = dwc3_omap_complete,
  46  };
  47
  48  #define DEV_PM_OPS     (&dwc3_omap_dev_pm_ops)