commit f2ec4e34aa55c3d5553b69e8f6e7df140f3ef48a
author Lukasz Majewski <l.majewski@samsung.com> Mon Aug 25 11:07:29 2014 +0200
committer Marek Vasut <marex@denx.de> Tue Sep 02 14:29:28 2014 +0200
tree ca7d14df113526563b5fc23ab603ed82aea4a41e
parent 1cc03c5c53c06a904ff1cea325e0202ab6313ee4

udc: dfu: s3c_udc: Provide function to check if USB reset was asserted

New dfu_usb_get_reset() method is necessary to distinct two different
use cases of dfu-util program.
This method checks if the USB bus reset has been really performed after
DFU DETACH.

Without this function the previous DFU behavior is preserved.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>

drivers/usb/gadget/s3c_udc_otg.c

diff --git a/drivers/usb/gadget/s3c_udc_otg.c b/drivers/usb/gadget/s3c_udc_otg.c
index 63d4487..ce2494c 100644
--- a/drivers/usb/gadget/s3c_udc_otg.c
+++ b/drivers/usb/gadget/s3c_udc_otg.c
@@ -149,6 +149,11 @@
 struct s3c_usbotg_phy *phy;
 static unsigned int usb_phy_ctrl;
 
+bool dfu_usb_get_reset(void)
+{
+	return !!(readl(&reg->gintsts) & INT_RESET);
+}
+
 void otg_phy_init(struct s3c_udc *dev)
 {
 	dev->pdata->phy_control(1);