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| author | Lukasz Majewski <l.majewski@samsung.com> | 2014-08-25 11:07:29 +0200 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2014-09-02 14:29:28 +0200 |
| commit | f2ec4e34aa55c3d5553b69e8f6e7df140f3ef48a (patch) | |
| tree | ca7d14df113526563b5fc23ab603ed82aea4a41e /drivers/usb/gadget/s3c_udc_otg.c | |
| parent | 1cc03c5c53c06a904ff1cea325e0202ab6313ee4 (diff) | |
| download | u-boot-imx-f2ec4e34aa55c3d5553b69e8f6e7df140f3ef48a.zip u-boot-imx-f2ec4e34aa55c3d5553b69e8f6e7df140f3ef48a.tar.gz u-boot-imx-f2ec4e34aa55c3d5553b69e8f6e7df140f3ef48a.tar.bz2 | |
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>
Diffstat (limited to 'drivers/usb/gadget/s3c_udc_otg.c')
| -rw-r--r-- | drivers/usb/gadget/s3c_udc_otg.c | 5 |
1 files changed, 5 insertions, 0 deletions
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_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); |