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>
---
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);
}
--
1.7.4.1
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