From f2ec4e34aa55c3d5553b69e8f6e7df140f3ef48a Mon Sep 17 00:00:00 2001 From: Lukasz Majewski Date: Mon, 25 Aug 2014 11:07:29 +0200 Subject: [PATCH] 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 --- drivers/usb/gadget/s3c_udc_otg.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/usb/gadget/s3c_udc_otg.c b/drivers/usb/gadget/s3c_udc_otg.c index 63d4487a9b..ce2494c2f3 100644 --- a/drivers/usb/gadget/s3c_udc_otg.c +++ b/drivers/usb/gadget/s3c_udc_otg.c @@ -149,6 +149,11 @@ struct s3c_usbotg_reg *reg; struct s3c_usbotg_phy *phy; static unsigned int usb_phy_ctrl; +bool dfu_usb_get_reset(void) +{ + return !!(readl(®->gintsts) & INT_RESET); +} + void otg_phy_init(struct s3c_udc *dev) { dev->pdata->phy_control(1); -- 2.30.2