From: Gregory Herrero <gregory.herrero@xxxxxxxxx> After all endpoints are disabled, fifo_map should have reached 0. Its a bug if if didn't, so warn about it and reset it to 0 so that driver can continue using all the fifos. Signed-off-by: Gregory Herrero <gregory.herrero@xxxxxxxxx> Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@xxxxxxxxx> --- drivers/usb/dwc2/gadget.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index d9d670b..a77fb3e 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -177,6 +177,10 @@ static void s3c_hsotg_init_fifo(struct dwc2_hsotg *hsotg) int timeout; u32 val; + /* Reset fifo map if not correctly cleared during previous session */ + WARN_ON(hsotg->fifo_map); + hsotg->fifo_map = 0; + /* set RX/NPTX FIFO sizes */ writel(hsotg->g_rx_fifo_sz, hsotg->regs + GRXFSIZ); writel((hsotg->g_rx_fifo_sz << FIFOSIZE_STARTADDR_SHIFT) | -- 1.9.1 ---------------------------------------------------------------------- Intel Sweden AB Registered Office: Knarrarnasgatan 15, 164 40 Kista, Stockholm, Sweden Registration Number: 556189-6027 This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
