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authorJarkko Nikula <jarkko.nikula@nokia.com>2008-03-17 17:01:10 +0200
committerTony Lindgren <tony@atomide.com>2008-05-09 10:25:03 -0700
commit0692f05dffaac5fc7b152f9b83625d3077639eba (patch)
treeca1e79c2ad79a5be3dfe2dbf660251b9219e85c6 /arch/arm
parent7cf95774190e423370945e116b07410c860407db (diff)
ARM: OMAP: DMA: Fix incorrect channel linking
Function enable_lnk does incorrect channel link on non-omap1 builds if chain is created manually with omap_request_dma and omap_dma_link_lch functions. Fix this by making sure that next_linked_ch field is initialized to -1 just in omap_request_dma. Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/plat-omap/dma.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index 793740686be2..c00eda588cd8 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -604,6 +604,7 @@ int omap_request_dma(int dev_id, const char *dev_name,
chan->data = data;
#ifndef CONFIG_ARCH_OMAP1
chan->chain_id = -1;
+ chan->next_linked_ch = -1;
#endif
chan->enabled_irqs = OMAP_DMA_DROP_IRQ | OMAP_DMA_BLOCK_IRQ;
@@ -1087,7 +1088,6 @@ int omap_request_dma_chain(int dev_id, const char *dev_name,
printk(KERN_ERR "omap_dma: Request failed %d\n", err);
return err;
}
- dma_chan[channels[i]].next_linked_ch = -1;
dma_chan[channels[i]].prev_linked_ch = -1;
dma_chan[channels[i]].state = DMA_CH_NOTSTARTED;