[PATCH 17/21] USB: musb: fix data toggle saving with shared FIFO

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From: Sergei Shtylyov <sshtylyov@xxxxxxxxxxxxx>

For some strange reason the host side musb_giveback() decides
that it's always got an IN transfer when the hardware endpoint
is using a shared FIFO.  This causes musb_save_toggle() to read
the toggle state from the RXCSR register instead of TXCSR, and
may also cause unneeded reloading of RX endpoint registers.

Signed-off-by: Sergei Shtylyov <sshtylyov@xxxxxxxxxxxxx>
Signed-off-by: David Brownell <dbrownell@xxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
 drivers/usb/musb/musb_host.c |    7 +------
 1 files changed, 1 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index c74ebad..fc79e76 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -335,16 +335,11 @@ musb_save_toggle(struct musb_hw_ep *ep, int is_in, struct urb *urb)
 static struct musb_qh *
 musb_giveback(struct musb_qh *qh, struct urb *urb, int status)
 {
-	int			is_in;
 	struct musb_hw_ep	*ep = qh->hw_ep;
 	struct musb		*musb = ep->musb;
+	int			is_in = usb_pipein(urb->pipe);
 	int			ready = qh->is_ready;
 
-	if (ep->is_shared_fifo)
-		is_in = 1;
-	else
-		is_in = usb_pipein(urb->pipe);
-
 	/* save toggle eagerly, for paranoia */
 	switch (qh->type) {
 	case USB_ENDPOINT_XFER_BULK:
-- 
1.6.0.2

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