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

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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>
This commit is contained in:
Lukasz Majewski 2014-08-25 11:07:29 +02:00 • committed by Marek Vasut
parent 1cc03c5c53
commit f2ec4e34aa
1 changed files with 5 additions and 0 deletions
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5
drivers/usb/gadget/s3c_udc_otg.c
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@ -149,6 +149,11 @@ struct s3c_usbotg_reg *reg;
struct s3c_usbotg_phy *phy; struct s3c_usbotg_phy *phy;
static unsigned int usb_phy_ctrl; 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) void otg_phy_init(struct s3c_udc *dev)
{ {
dev->pdata->phy_control(1); dev->pdata->phy_control(1);