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| author | Jarkko Nikula <jarkko.nikula@nokia.com> | 2008-03-17 17:01:10 +0200 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2008-05-09 10:25:03 -0700 |
| commit | 0692f05dffaac5fc7b152f9b83625d3077639eba (patch) | |
| tree | ca1e79c2ad79a5be3dfe2dbf660251b9219e85c6 /arch | |
| parent | 7cf95774190e423370945e116b07410c860407db (diff) | |
| download | linux-0692f05dffaac5fc7b152f9b83625d3077639eba.tar.gz linux-0692f05dffaac5fc7b152f9b83625d3077639eba.tar.bz2 linux-0692f05dffaac5fc7b152f9b83625d3077639eba.zip | |
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')
| -rw-r--r-- | arch/arm/plat-omap/dma.c | 2 |
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; |