Commit 9f445cb [USB: musb: disable double buffering for older RTL versions] is breaking the high bandwidth isochronous transfer as hb_mult is not getting programmed into RXMAXP register. Signed-off-by: Ajay Kumar Gupta <ajay.gupta@xxxxxx> --- Patch created against latest Linus's tree. drivers/usb/musb/musb_host.c | 10 ++-------- 1 files changed, 2 insertions(+), 8 deletions(-) diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index 4d5bcb4..45dbe8c 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -606,14 +606,8 @@ musb_rx_reinit(struct musb *musb, struct musb_qh *qh, struct musb_hw_ep *ep) musb_writeb(ep->regs, MUSB_RXTYPE, qh->type_reg); musb_writeb(ep->regs, MUSB_RXINTERVAL, qh->intv_reg); /* NOTE: bulk combining rewrites high bits of maxpacket */ - /* Set RXMAXP with the FIFO size of the endpoint - * to disable double buffer mode. - */ - if (musb->hwvers < MUSB_HWVERS_2000) - musb_writew(ep->regs, MUSB_RXMAXP, ep->max_packet_sz_rx); - else - musb_writew(ep->regs, MUSB_RXMAXP, - qh->maxpacket | ((qh->hb_mult - 1) << 11)); + musb_writew(ep->regs, MUSB_RXMAXP, + qh->maxpacket | ((qh->hb_mult - 1) << 11)); ep->rx_reinit = 0; } -- 1.6.2.4 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
