From: Bin Liu <b-liu@ti.com>
Date: Tue, 31 May 2016 15:05:03 +0000 (-0500)
Subject: usb: musb: host: clear rxcsr error bit if set
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b5801212229f6ca5c418c68cd1e0548f4b53f624;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

usb: musb: host: clear rxcsr error bit if set

The MUSB Programming Guide states that the driver should clear RXCSR
bit2 when the controller sets the bit.

Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index 2f8ad7f1f482..931381c51ad7 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -1870,6 +1870,9 @@ void musb_host_rx(struct musb *musb, u8 epnum)
 		status = -EPROTO;
 		musb_writeb(epio, MUSB_RXINTERVAL, 0);
 
+		rx_csr &= ~MUSB_RXCSR_H_ERROR;
+		musb_writew(epio, MUSB_RXCSR, rx_csr);
+
 	} else if (rx_csr & MUSB_RXCSR_DATAERROR) {
 
 		if (USB_ENDPOINT_XFER_ISOC != qh->type) {