From: Dmitry Krivoschekov Date: Sat, 21 Feb 2009 23:30:15 +0000 (-0800) Subject: USB: musb: fix musb_host_tx() for shared endpoint FIFO X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b7bdcb79de6de32e40dcc85a5e8c669bec2483d5;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git 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 Signed-off-by: Sergei Shtylyov Acked-by: David Brownell Cc: Felipe Balbi Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index a035ceccf950..b47ca948bcf4 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -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;