Isochronous Tx DMA is getting programmed but never getting started for CPPI and TUSB DMAs and thus Isochronous Tx doesn't work.
Fixing it by starting DMAs using musb_h_tx_dma_start(). Signed-off-by: Swaminathan S <[email protected]> Signed-off-by: Babu Ravi <[email protected]> Signed-off-by: Ajay Kumar Gupta <[email protected]> --- drivers/usb/musb/musb_host.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index cf94511..e3ab40a 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -1301,8 +1301,11 @@ void musb_host_tx(struct musb *musb, u8 epnum) return; } else if (usb_pipeisoc(pipe) && dma) { if (musb_tx_dma_program(musb->dma_controller, hw_ep, qh, urb, - offset, length)) + offset, length)) { + if (is_cppi_enabled() || tusb_dma_omap()) + musb_h_tx_dma_start(hw_ep); return; + } } else if (tx_csr & MUSB_TXCSR_DMAENAB) { DBG(1, "not complete, but DMA enabled?\n"); return; -- 1.6.2.4 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
