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path: root/drivers/dma/sh/rcar-dmac.c
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Diffstat (limited to 'drivers/dma/sh/rcar-dmac.c')
-rw-r--r--drivers/dma/sh/rcar-dmac.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c
index db41795fe42a..c68c3336bdad 100644
--- a/drivers/dma/sh/rcar-dmac.c
+++ b/drivers/dma/sh/rcar-dmac.c
@@ -144,6 +144,7 @@ struct rcar_dmac_chan_map {
* @chan: base DMA channel object
* @iomem: channel I/O memory base
* @index: index of this channel in the controller
+ * @irq: channel IRQ
* @src: slave memory address and size on the source side
* @dst: slave memory address and size on the destination side
* @mid_rid: hardware MID/RID for the DMA client using this channel
@@ -161,6 +162,7 @@ struct rcar_dmac_chan {
struct dma_chan chan;
void __iomem *iomem;
unsigned int index;
+ int irq;
struct rcar_dmac_chan_slave src;
struct rcar_dmac_chan_slave dst;
@@ -1647,7 +1649,6 @@ static int rcar_dmac_chan_probe(struct rcar_dmac *dmac,
struct dma_chan *chan = &rchan->chan;
char pdev_irqname[5];
char *irqname;
- int irq;
int ret;
rchan->index = index;
@@ -1664,8 +1665,8 @@ static int rcar_dmac_chan_probe(struct rcar_dmac *dmac,
/* Request the channel interrupt. */
sprintf(pdev_irqname, "ch%u", index);
- irq = platform_get_irq_byname(pdev, pdev_irqname);
- if (irq < 0) {
+ rchan->irq = platform_get_irq_byname(pdev, pdev_irqname);
+ if (rchan->irq < 0) {
dev_err(dmac->dev, "no IRQ specified for channel %u\n", index);
return -ENODEV;
}
@@ -1675,11 +1676,13 @@ static int rcar_dmac_chan_probe(struct rcar_dmac *dmac,
if (!irqname)
return -ENOMEM;
- ret = devm_request_threaded_irq(dmac->dev, irq, rcar_dmac_isr_channel,
+ ret = devm_request_threaded_irq(dmac->dev, rchan->irq,
+ rcar_dmac_isr_channel,
rcar_dmac_isr_channel_thread, 0,
irqname, rchan);
if (ret) {
- dev_err(dmac->dev, "failed to request IRQ %u (%d)\n", irq, ret);
+ dev_err(dmac->dev, "failed to request IRQ %u (%d)\n",
+ rchan->irq, ret);
return ret;
}