From: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx> It is enabled to set SOF packet output bit when USBRST bit was set. And USBRST bit should be set 0 when SOF packet was output. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx> Signed-off-by: Felipe Balbi <balbi@xxxxxx> --- drivers/usb/renesas_usbhs/common.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c index 1161d78..895eb44 100644 --- a/drivers/usb/renesas_usbhs/common.c +++ b/drivers/usb/renesas_usbhs/common.c @@ -181,6 +181,13 @@ void usbhs_usbreq_set_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req) */ void usbhs_bus_send_sof_enable(struct usbhs_priv *priv) { + u16 status = usbhs_read(priv, DVSTCTR) & (USBRST | UACT); + + if (status != USBRST) { + struct device *dev = usbhs_priv_to_dev(priv); + dev_err(dev, "usbhs should be reset\n"); + } + usbhs_bset(priv, DVSTCTR, (USBRST | UACT), UACT); } -- 1.7.7 -- 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