diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/musb/musb_cppi41.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/musb/musb_cppi41.c b/drivers/usb/musb/musb_cppi41.c index 6afbd0dedec6..8dfd86771fac 100644 --- a/drivers/usb/musb/musb_cppi41.c +++ b/drivers/usb/musb/musb_cppi41.c @@ -543,6 +543,9 @@ static int cppi41_dma_channel_abort(struct dma_channel *channel) } else { cppi41_set_autoreq_mode(cppi41_channel, EP_MODE_AUTOREQ_NONE); + /* delay to drain to cppi dma pipeline for isoch */ + udelay(250); + csr = musb_readw(epio, MUSB_RXCSR); csr &= ~(MUSB_RXCSR_H_REQPKT | MUSB_RXCSR_DMAENAB); musb_writew(epio, MUSB_RXCSR, csr); |