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From: Roger Quadros <rogerq@ti.com>
To: <balbi@kernel.org>
Cc: <linux-usb@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	Roger Quadros <rogerq@ti.com>
Subject: [PATCH 1/2] usb: dwc3: omap: don't miss events during suspend/resume
Date: Mon, 22 Jan 2018 15:01:42 +0200	[thread overview]
Message-ID: <1516626103-1969-2-git-send-email-rogerq@ti.com> (raw)
In-Reply-To: <1516626103-1969-1-git-send-email-rogerq@ti.com>

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


  reply	other threads:[~2018-01-22 13:02 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-22 13:01 [PATCH 0/2] usb: dwc3: Fix dual role during system suspend/resume Roger Quadros
2018-01-22 13:01 ` Roger Quadros [this message]
2018-01-22 13:01 ` [PATCH 2/2] usb: dwc3: drd: Fix lock-up on ID change " Roger Quadros
2018-01-23  3:45   ` Manu Gautam
2018-01-23 12:41     ` Roger Quadros
2018-01-24 12:19       ` Roger Quadros
2018-01-25 16:11         ` Roger Quadros
2018-02-15  7:45           ` Roger Quadros
2018-02-12  8:54   ` Felipe Balbi
2018-02-12 10:48     ` Roger Quadros

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