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USB: musb: fix musb_host_tx() for shared endpoint FIFO 

The input queue should be used for TX on endpoints which
share FIFO hardware.  The host TX path wasn't doing that.

Shared FIFOs are most often configured for periodic endpoints,
which are mostly used for RX/IN transfers ... that's probably
how this bug managed to linger for a long time.

[ dbrownell@users.sourceforge.net: update patch description ]

Signed-off-by: Dmitry Krivoschekov <dkrivoschekov@ru.mvista.com>
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Dmitry Krivoschekov 2009-02-21 15:30:15 -08:00 committed by Greg Kroah-Hartman
parent c2c963217b
commit b7bdcb79de
1 changed files with 2 additions and 1 deletions
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3
drivers/usb/musb/musb_host.c
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@ -1161,7 +1161,8 @@ void musb_host_tx(struct musb *musb, u8 epnum)
struct urb *urb;
struct musb_hw_ep *hw_ep = musb->endpoints + epnum;
void __iomem *epio = hw_ep->regs;
struct musb_qh *qh = hw_ep->out_qh;
struct musb_qh *qh = hw_ep->is_shared_fifo ? hw_ep->in_qh
: hw_ep->out_qh;
u32 status = 0;
void __iomem *mbase = musb->mregs;
struct dma_channel *dma;