From: Cristian Birsan <[email protected]> Commit 6b6e97107f12f3a9f7 (USB: musb: fix isochronous TXDMA (take 2)) introduces a problem setting the desired channel mode for the Mentor DMA engine.
There is a case where the pointer of the channel DMA mode is incorrectly assigned to a pointer value, when it should be assigned the actual mode value. This results in the value of channel->desired_mode not being correct. Signed-off-by: Cristian Birsan <[email protected]> Signed-off-by: Joshua Henderson <[email protected]> --- drivers/usb/musb/musb_host.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index 3fdc99b..748379e 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -662,7 +662,7 @@ static int musb_tx_dma_set_mode_mentor(struct dma_controller *dma, csr &= ~(MUSB_TXCSR_AUTOSET | MUSB_TXCSR_DMAMODE); csr |= MUSB_TXCSR_DMAENAB; /* against programmer's guide */ } - channel->desired_mode = mode; + channel->desired_mode = *mode; musb_writew(epio, MUSB_TXCSR, csr); return 0; -- 1.7.9.5
