dma: pl330: Support per channel irq allocation

Some pl330 have per channel irq and it is necessary
to allocate all of them. Loop over irq assigned for this
device to support these pl330 IPs.

For example this IP is available on Xilinx Zynq platform.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Tested-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index 58623dc474d13e58f7a6c032f86d0c4b5237fa56..96de393aaf4fb5860794b9aadd764db134c20c2e 100644 (file)
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -2922,11 +2922,18 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
 
        amba_set_drvdata(adev, pdmac);
 
-       irq = adev->irq[0];
-       ret = devm_request_irq(&adev->dev, irq, pl330_irq_handler, 0,
-                       dev_name(&adev->dev), pi);
-       if (ret)
-               return ret;
+       for (i = 0; i <= AMBA_NR_IRQS; i++) {
+               irq = adev->irq[i];
+               if (irq) {
+                       ret = devm_request_irq(&adev->dev, irq,
+                                              pl330_irq_handler, 0,
+                                              dev_name(&adev->dev), pi);
+                       if (ret)
+                               return ret;
+               } else {
+                       break;
+               }
+       }
 
        pi->pcfg.periph_id = adev->periphid;
        ret = pl330_add(pi);