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Commit 87c2905f authored by Kuninori Morimoto's avatar Kuninori Morimoto Committed by Felipe Balbi
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usb: renesas_usbhs: add DMAEngine support on mod_host 



This patch enabled dma mapping, and used dma transfer handler
on mod_host

Signed-off-by: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 3192fcb2

drivers/usb/renesas_usbhs/mod_host.c

+15 −2
Original line number Diff line number Diff line
@@ -681,9 +681,9 @@ static int usbhsh_queue_push(struct usb_hcd *hcd, 
	}



	if (usb_pipein(urb->pipe))

		pipe->handler = &usbhs_fifo_pio_pop_handler;

		pipe->handler = &usbhs_fifo_dma_pop_handler;

	else

		pipe->handler = &usbhs_fifo_pio_push_handler;

		pipe->handler = &usbhs_fifo_dma_push_handler;



	buf = (void *)(urb->transfer_buffer + urb->actual_length);

	len = urb->transfer_buffer_length - urb->actual_length;
@@ -916,6 +916,19 @@ static int usbhsh_dcp_queue_push(struct usb_hcd *hcd, 
 */

static int usbhsh_dma_map_ctrl(struct usbhs_pkt *pkt, int map)

{

	if (map) {

		struct usbhsh_request *ureq = usbhsh_pkt_to_ureq(pkt);

		struct urb *urb = ureq->urb;



		/* it can not use scatter/gather */

		if (urb->num_sgs)

			return -EINVAL;



		pkt->dma = urb->transfer_dma;

		if (!pkt->dma)

			return -EINVAL;

	}



	return 0;

}