diff options
| author | Javier Martin <javier.martin@vista-silicon.com> | 2012-03-22 14:54:09 +0100 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@linux.intel.com> | 2012-03-26 11:31:31 +0530 |
| commit | 6b0e2f55e3ebc7089abf5e4770f03fb264b6d2ea (patch) | |
| tree | 689c8a182a49d11f5f86fef9e2914e789692bbdf /drivers/dma/imx-dma.c | |
| parent | e4756b5e068d866239b6880a7030c9d31400b254 (diff) | |
| download | lwn-6b0e2f55e3ebc7089abf5e4770f03fb264b6d2ea.tar.gz lwn-6b0e2f55e3ebc7089abf5e4770f03fb264b6d2ea.zip | |
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>
Diffstat (limited to 'drivers/dma/imx-dma.c')
| -rw-r--r-- | drivers/dma/imx-dma.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c index d7309e44c0df..6e03f928ca81 100644 --- a/drivers/dma/imx-dma.c +++ b/drivers/dma/imx-dma.c @@ -129,8 +129,6 @@ enum imxdma_prep_type { */ struct imxdma_channel_internal { - unsigned int resbytes; - struct timer_list watchdog; int hw_chaining; @@ -233,12 +231,11 @@ static int imxdma_hw_chain(struct imxdma_channel_internal *imxdma) 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 @@ static int imxdma_xfer_desc(struct imxdma_desc *d) /* 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)); |