dmaengine: imx-dma: remove 'resbytes' field of 'internal' structure.
Use per-descriptor 'len' field to keep track of the remaining bytes
instead. This goes on the direction of eventually removing the
'internal' structure.
Signed-off-by: Javier Martin <javier.martin@vista-silicon.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c
index d7309e4..6e03f92 100644
--- a/drivers/dma/imx-dma.c
+++ b/drivers/dma/imx-dma.c
@@ -129,8 +129,6 @@
*/
struct imxdma_channel_internal {
- unsigned int resbytes;
-
struct timer_list watchdog;
int hw_chaining;
@@ -233,12 +231,11 @@
static inline int imxdma_sg_next(struct imxdma_desc *d, struct scatterlist *sg)
{
struct imxdma_channel *imxdmac = to_imxdma_chan(d->desc.chan);
- struct imxdma_channel_internal *imxdma = &imxdmac->internal;
unsigned long now;
- now = min(imxdma->resbytes, sg->length);
- if (imxdma->resbytes != IMX_DMA_LENGTH_LOOP)
- imxdma->resbytes -= now;
+ now = min(d->len, sg->length);
+ if (d->len != IMX_DMA_LENGTH_LOOP)
+ d->len -= now;
if (d->direction == DMA_DEV_TO_MEM)
imx_dmav1_writel(sg->dma_address, DMA_DAR(imxdmac->channel));
@@ -480,8 +477,6 @@
/* Cyclic transfer is the same as slave_sg with special sg configuration. */
case IMXDMA_DESC_CYCLIC:
case IMXDMA_DESC_SLAVE_SG:
- imxdmac->internal.resbytes = d->len;
-
if (d->direction == DMA_DEV_TO_MEM) {
imx_dmav1_writel(imxdmac->per_address,
DMA_SAR(imxdmac->channel));