diff options
| -rw-r--r-- | drivers/usb/musb/musb_cppi41.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/usb/musb/musb_cppi41.c b/drivers/usb/musb/musb_cppi41.c index f88929609bac..39ee516c8cbf 100644 --- a/drivers/usb/musb/musb_cppi41.c +++ b/drivers/usb/musb/musb_cppi41.c @@ -448,12 +448,25 @@ static int cppi41_dma_channel_program(struct dma_channel *channel, dma_addr_t dma_addr, u32 len) { int ret; + struct cppi41_dma_channel *cppi41_channel = channel->private_data; + int hb_mult = 0; BUG_ON(channel->status == MUSB_DMA_STATUS_UNKNOWN || channel->status == MUSB_DMA_STATUS_BUSY); + if (is_host_active(cppi41_channel->controller->musb)) { + if (cppi41_channel->is_tx) + hb_mult = cppi41_channel->hw_ep->out_qh->hb_mult; + else + hb_mult = cppi41_channel->hw_ep->in_qh->hb_mult; + } + channel->status = MUSB_DMA_STATUS_BUSY; channel->actual_len = 0; + + if (hb_mult) + packet_sz = hb_mult * (packet_sz & 0x7FF); + ret = cppi41_configure_channel(channel, packet_sz, mode, dma_addr, len); if (!ret) channel->status = MUSB_DMA_STATUS_FREE; |