[PATCH v1 8/8] usb: otg: palmas-usb: fix cold plug issue

Kishon Vijay Abraham I kishon at ti.com
Fri Jan 25 14:12:31 EST 2013


if the cable is connected even before the palmas-usb is loaded, the
cable connect detection event will be missed. It's fixed here by checking
for VBUS line states when palmas-usb is loaded.

Signed-off-by: Kishon Vijay Abraham I <kishon at ti.com>
---
 drivers/usb/otg/palmas-usb.c |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/usb/otg/palmas-usb.c b/drivers/usb/otg/palmas-usb.c
index 07629cd..d62f673 100644
--- a/drivers/usb/otg/palmas-usb.c
+++ b/drivers/usb/otg/palmas-usb.c
@@ -187,6 +187,11 @@ static int palmas_enable_irq(struct palmas_usb *palmas_usb)
 	palmas_usb_write(palmas_usb->palmas, PALMAS_USB_ID_INT_EN_HI_SET,
 			PALMAS_USB_ID_INT_EN_HI_SET_ID_GND);
 
+	palmas_vbus_wakeup_irq(palmas_usb->irq4, palmas_usb);
+
+	if (palmas_usb->linkstat == OMAP_DWC3_UNKNOWN)
+		palmas_id_wakeup_irq(palmas_usb->irq2, palmas_usb);
+
 	return 0;
 }
 
-- 
1.7.9.5



More information about the devicetree-discuss mailing list