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authorGadiyar, Anand <gadiyar@ti.com>2008-03-08 05:49:13 -0800
committerTony Lindgren <tony@atomide.com>2008-03-20 16:57:54 +0200
commit026a6fef55da7239ca0970000eb62b9eab5ba281 (patch)
tree8b3076d25ef7967b3b8fd958dd37d9912636b6f2 /arch/arm/plat-omap/dma.c
parentf4b6a7ef6c64d84e252d32df631813bd09ea3756 (diff)
downloadblackbird-op-linux-026a6fef55da7239ca0970000eb62b9eab5ba281.tar.gz
blackbird-op-linux-026a6fef55da7239ca0970000eb62b9eab5ba281.zip
ARM: OMAP: Fix DMA CLINK mask, clear spurious interrupt
Fix CLINK mask, clear spurious interrupt. Signed-off-by: Gadiyar, Anand <gadiyar@ti.com> Signed-off-by: Kevin Hilman <khilman@mvista.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/plat-omap/dma.c')
-rw-r--r--arch/arm/plat-omap/dma.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index 06293bfcc831..793740686be2 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -1020,12 +1020,12 @@ static void create_dma_lch_chain(int lch_head, int lch_queue)
}
w = OMAP_DMA_CLNK_CTRL_REG(lch_head);
- w &= ~(0x0f);
+ w &= ~(0x1f);
w |= lch_queue;
OMAP_DMA_CLNK_CTRL_REG(lch_head) = w;
w = OMAP_DMA_CLNK_CTRL_REG(lch_queue);
- w &= ~(0x0f);
+ w &= ~(0x1f);
w |= (dma_chan[lch_queue].next_linked_ch);
OMAP_DMA_CLNK_CTRL_REG(lch_queue) = w;
}
@@ -1663,6 +1663,7 @@ static int omap2_dma_handle_ch(int ch)
if (!status) {
if (printk_ratelimit())
printk(KERN_WARNING "Spurious DMA IRQ for lch %d\n", ch);
+ omap_writel(1 << ch, OMAP_DMA4_IRQSTATUS_L0);
return 0;
}
if (unlikely(dma_chan[ch].dev_id == -1)) {
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