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>

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>
Lukasz Majewski · Marek Vasut
1 parent 1cc03c5c53
Showing 1 changed file with 5 additions and 0 deletions Side-by-side Diff
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);
...	...	@@ -149,6 +149,11 @@
149	149	struct s3c_usbotg_phy *phy;
150	150	static unsigned int usb_phy_ctrl;
151	151
	152	+bool dfu_usb_get_reset(void)
	153	+{
	154	+ return !!(readl(&reg->gintsts) & INT_RESET);
	155	+}
	156	+
152	157	void otg_phy_init(struct s3c_udc *dev)
153	158	{
154	159	dev->pdata->phy_control(1);