dmaengine: omap-dma: Simplify omap_dma_start_sg parameter list

We can drop the (sg)idx parameter for the omap_dma_start_sg() function and
increment the sgidx inside of the same function.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

diff --git a/drivers/dma/omap-dma.c b/drivers/dma/omap-dma.c
index d99ca2b511c4101ce262569106ffe1d3fa5644fb..2fdeb02e81fc7f5951dc869817ba7e15713b720e 100644 (file)
--- a/drivers/dma/omap-dma.c
+++ b/drivers/dma/omap-dma.c
@@ -365,10 +365,9 @@ static void omap_dma_stop(struct omap_chan *c)
        c->running = false;
 }
 
-static void omap_dma_start_sg(struct omap_chan *c, struct omap_desc *d,
-       unsigned idx)
+static void omap_dma_start_sg(struct omap_chan *c, struct omap_desc *d)
 {
-       struct omap_sg *sg = d->sg + idx;
+       struct omap_sg *sg = d->sg + c->sgidx;
        unsigned cxsa, cxei, cxfi;
 
        if (d->dir == DMA_DEV_TO_MEM || d->dir == DMA_MEM_TO_MEM) {
@@ -388,6 +387,7 @@ static void omap_dma_start_sg(struct omap_chan *c, struct omap_desc *d,
        omap_dma_chan_write(c, CFN, sg->fn);
 
        omap_dma_start(c, d);
+       c->sgidx++;
 }
 
 static void omap_dma_start_desc(struct omap_chan *c)
@@ -433,7 +433,7 @@ static void omap_dma_start_desc(struct omap_chan *c)
        omap_dma_chan_write(c, CSDP, d->csdp);
        omap_dma_chan_write(c, CLNK_CTRL, d->clnk_ctrl);
 
-       omap_dma_start_sg(c, d, 0);
+       omap_dma_start_sg(c, d);
 }
 
 static void omap_dma_callback(int ch, u16 status, void *data)
@@ -446,8 +446,8 @@ static void omap_dma_callback(int ch, u16 status, void *data)
        d = c->desc;
        if (d) {
                if (!c->cyclic) {
-                       if (++c->sgidx < d->sglen) {
-                               omap_dma_start_sg(c, d, c->sgidx);
+                       if (c->sgidx < d->sglen) {
+                               omap_dma_start_sg(c, d);
                        } else {
                                omap_dma_start_desc(c);
                                vchan_cookie_complete(&d->vd);