lkml.org 
[lkml]   [2018]   [Jan]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 1/2] usb: dwc3: omap: don't miss events during suspend/resume
Date
The USB cable state can change during suspend/resume
so be sure to check and update the extcon state.

Signed-off-by: Roger Quadros <rogerq@ti.com>
---
drivers/usb/dwc3/dwc3-omap.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)

diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c
index a4719e8..ed8b865 100644
--- a/drivers/usb/dwc3/dwc3-omap.c
+++ b/drivers/usb/dwc3/dwc3-omap.c
@@ -582,9 +582,25 @@ static int dwc3_omap_resume(struct device *dev)
return 0;
}

+static void dwc3_omap_complete(struct device *dev)
+{
+ struct dwc3_omap *omap = dev_get_drvdata(dev);
+
+ if (extcon_get_state(omap->edev, EXTCON_USB))
+ dwc3_omap_set_mailbox(omap, OMAP_DWC3_VBUS_VALID);
+ else
+ dwc3_omap_set_mailbox(omap, OMAP_DWC3_VBUS_OFF);
+
+ if (extcon_get_state(omap->edev, EXTCON_USB_HOST))
+ dwc3_omap_set_mailbox(omap, OMAP_DWC3_ID_GROUND);
+ else
+ dwc3_omap_set_mailbox(omap, OMAP_DWC3_ID_FLOAT);
+}
+
static const struct dev_pm_ops dwc3_omap_dev_pm_ops = {

SET_SYSTEM_SLEEP_PM_OPS(dwc3_omap_suspend, dwc3_omap_resume)
+ .complete = dwc3_omap_complete,
};

#define DEV_PM_OPS (&dwc3_omap_dev_pm_ops)
--
cheers,
-roger
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki

\
 
 \ /
  Last update: 2018-01-22 14:02    [W:0.056 / U:1.244 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site