[PATCH 7/8] usb: fsl_udc: Use dma_alloc_coherent() to get DMA address

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Instead on relying virt_to_phys() to do virtual-to-physical address
conversion, make use of the fact that dma_alloc_coherent() can already
do that for us.

Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
---
 drivers/usb/gadget/fsl_udc.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/gadget/fsl_udc.c b/drivers/usb/gadget/fsl_udc.c
index 705f6c0ba..a47ba20f4 100644
--- a/drivers/usb/gadget/fsl_udc.c
+++ b/drivers/usb/gadget/fsl_udc.c
@@ -1143,11 +1143,10 @@ static struct ep_td_struct *fsl_build_dtd(struct fsl_req *req, unsigned *length,
 			(unsigned)EP_MAX_LENGTH_TRANSFER);
 
 	dtd = dma_alloc_coherent(sizeof(struct ep_td_struct),
-				 DMA_ADDRESS_BROKEN);
+				 dma);
 	if (dtd == NULL)
 		return dtd;
 
-	*dma = (dma_addr_t)virt_to_phys(dtd);
 	dtd->td_dma = *dma;
 	/* Clear reserved field */
 	swap_temp = cpu_to_le32(dtd->size_ioc_sts);
@@ -2066,13 +2065,12 @@ static int struct_udc_setup(struct fsl_udc *udc,
 		size &= ~(QH_ALIGNMENT - 1);
 	}
 
-	udc->ep_qh = dma_alloc_coherent(size, DMA_ADDRESS_BROKEN);
+	udc->ep_qh = dma_alloc_coherent(size, &udc->ep_qh_dma);
 	if (!udc->ep_qh) {
 		ERR("malloc QHs for udc failed\n");
 		kfree(udc->eps);
 		return -1;
 	}
-	udc->ep_qh_dma = (dma_addr_t)virt_to_phys(udc->ep_qh);
 
 	udc->ep_qh_size = size;
 
-- 
2.21.0


_______________________________________________
barebox mailing list
barebox@xxxxxxxxxxxxxxxxxxx
http://lists.infradead.org/mailman/listinfo/barebox



[Index of Archives]     [Linux Embedded]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [XFree86]

  Powered by Linux