blob: 5d6564fb22b94c4b6fd87b31e462ba3c47d00eaa [file] [log] [blame]
From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Date: Thu, 12 Mar 2015 15:35:19 +0900
Subject: usb: renesas_usbhs: fix the sequence in xfer_work()
commit 9b53d9af7aac09cf249d72bfbf15f08e47c4f7fe upstream.
This patch fixes the setup sequence in xfer_work(). Otherwise,
sometimes a usb transaction will get stuck.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
[bwh: Backported to 3.16: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/usb/renesas_usbhs/fifo.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/usb/renesas_usbhs/fifo.c
+++ b/drivers/usb/renesas_usbhs/fifo.c
@@ -806,10 +806,10 @@ static void xfer_work(struct work_struct
dev_dbg(dev, " %s %d (%d/ %d)\n",
fifo->name, usbhs_pipe_number(pipe), pkt->length, pkt->zero);
- usbhs_pipe_set_trans_count_if_bulk(pipe, pkt->trans);
- usbhs_pipe_enable(pipe);
usbhsf_dma_start(pipe, fifo);
+ usbhs_pipe_set_trans_count_if_bulk(pipe, pkt->trans);
dma_async_issue_pending(chan);
+ usbhs_pipe_enable(pipe);
}
/*