summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-pxa/dma.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-pxa/dma.c')
-rw-r--r--arch/arm/mach-pxa/dma.c18
1 files changed, 10 insertions, 8 deletions
diff --git a/arch/arm/mach-pxa/dma.c b/arch/arm/mach-pxa/dma.c
index b1514fb..7de17fc 100644
--- a/arch/arm/mach-pxa/dma.c
+++ b/arch/arm/mach-pxa/dma.c
@@ -121,20 +121,22 @@ int __init pxa_init_dma(int num_ch)
if (dma_channels == NULL)
return -ENOMEM;
- ret = request_irq(IRQ_DMA, dma_irq_handler, IRQF_DISABLED, "DMA", NULL);
- if (ret) {
- printk (KERN_CRIT "Wow! Can't register IRQ for DMA\n");
- kfree(dma_channels);
- return ret;
- }
-
/* dma channel priorities on pxa2xx processors:
* ch 0 - 3, 16 - 19 <--> (0) DMA_PRIO_HIGH
* ch 4 - 7, 20 - 23 <--> (1) DMA_PRIO_MEDIUM
* ch 8 - 15, 24 - 31 <--> (2) DMA_PRIO_LOW
*/
- for (i = 0; i < num_ch; i++)
+ for (i = 0; i < num_ch; i++) {
+ DCSR(i) = 0;
dma_channels[i].prio = min((i & 0xf) >> 2, DMA_PRIO_LOW);
+ }
+
+ ret = request_irq(IRQ_DMA, dma_irq_handler, IRQF_DISABLED, "DMA", NULL);
+ if (ret) {
+ printk (KERN_CRIT "Wow! Can't register IRQ for DMA\n");
+ kfree(dma_channels);
+ return ret;
+ }
num_dma_channels = num_ch;
return 0;
OpenPOWER on IntegriCloud