diff options
Diffstat (limited to 'drivers/usb/musb/musbhsdma.c')
| -rw-r--r-- | drivers/usb/musb/musbhsdma.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/usb/musb/musbhsdma.c b/drivers/usb/musb/musbhsdma.c index 0144a2d481f..f70c5a57773 100644 --- a/drivers/usb/musb/musbhsdma.c +++ b/drivers/usb/musb/musbhsdma.c @@ -122,11 +122,12 @@ static void configure_channel(struct dma_channel *channel, { struct musb_dma_channel *musb_channel = channel->private_data; struct musb_dma_controller *controller = musb_channel->controller; + struct musb *musb = controller->private_data; void __iomem *mbase = controller->base; u8 bchannel = musb_channel->idx; u16 csr = 0; - DBG(4, "%p, pkt_sz %d, addr 0x%x, len %d, mode %d\n", + dev_dbg(musb->controller, "%p, pkt_sz %d, addr 0x%x, len %d, mode %d\n", channel, packet_sz, dma_addr, len, mode); if (mode) { @@ -161,7 +162,7 @@ static int dma_channel_program(struct dma_channel *channel, struct musb_dma_controller *controller = musb_channel->controller; struct musb *musb = controller->private_data; - DBG(2, "ep%d-%s pkt_sz %d, dma_addr 0x%x length %d, mode %d\n", + dev_dbg(musb->controller, "ep%d-%s pkt_sz %d, dma_addr 0x%x length %d, mode %d\n", musb_channel->epnum, musb_channel->transmit ? "Tx" : "Rx", packet_sz, dma_addr, len, mode); @@ -169,6 +170,14 @@ static int dma_channel_program(struct dma_channel *channel, BUG_ON(channel->status == MUSB_DMA_STATUS_UNKNOWN || channel->status == MUSB_DMA_STATUS_BUSY); + /* Let targets check/tweak the arguments */ + if (musb->ops->adjust_channel_params) { + int ret = musb->ops->adjust_channel_params(channel, + packet_sz, &mode, &dma_addr, &len); + if (ret) + return ret; + } + /* * The DMA engine in RTL1.8 and above cannot handle * DMA addresses that are not aligned to a 4 byte boundary. @@ -266,7 +275,7 @@ static irqreturn_t dma_controller_irq(int irq, void *private_data) #endif if (!int_hsdma) { - DBG(2, "spurious DMA irq\n"); + dev_dbg(musb->controller, "spurious DMA irq\n"); for (bchannel = 0; bchannel < MUSB_HSDMA_CHANNELS; bchannel++) { musb_channel = (struct musb_dma_channel *) @@ -280,7 +289,7 @@ static irqreturn_t dma_controller_irq(int irq, void *private_data) } } - DBG(2, "int_hsdma = 0x%x\n", int_hsdma); + dev_dbg(musb->controller, "int_hsdma = 0x%x\n", int_hsdma); if (!int_hsdma) goto done; @@ -307,7 +316,7 @@ static irqreturn_t dma_controller_irq(int irq, void *private_data) channel->actual_len = addr - musb_channel->start_addr; - DBG(2, "ch %p, 0x%x -> 0x%x (%zu / %d) %s\n", + dev_dbg(musb->controller, "ch %p, 0x%x -> 0x%x (%zu / %d) %s\n", channel, musb_channel->start_addr, addr, channel->actual_len, musb_channel->len, |