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| author | James Morris <jmorris@namei.org> | 2010-05-06 04:56:07 +0400 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2010-05-06 04:56:07 +0400 |
| commit | 0ffbe2699cda6afbe08501098dff8a8c2fe6ae09 (patch) | |
| tree | 81b1a2305d16c873371b65c5a863c0268036cefe /arch/arm/plat-omap/dma.c | |
| parent | 4e5d6f7ec3833c0da9cf34fa5c53c6058c5908b6 (diff) | |
| parent | 7ebd467551ed6ae200d7835a84bbda0dcadaa511 (diff) | |
| download | linux-0ffbe2699cda6afbe08501098dff8a8c2fe6ae09.tar.xz | |
Merge branch 'master' into next
Diffstat (limited to 'arch/arm/plat-omap/dma.c')
| -rw-r--r-- | arch/arm/plat-omap/dma.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c index 2ab224c8e16c..1d959965ff52 100644 --- a/arch/arm/plat-omap/dma.c +++ b/arch/arm/plat-omap/dma.c @@ -29,6 +29,7 @@ #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/io.h> +#include <linux/slab.h> #include <asm/system.h> #include <mach/hardware.h> @@ -936,6 +937,15 @@ void omap_start_dma(int lch) { u32 l; + /* + * The CPC/CDAC register needs to be initialized to zero + * before starting dma transfer. + */ + if (cpu_is_omap15xx()) + dma_write(0, CPC(lch)); + else + dma_write(0, CDAC(lch)); + if (!omap_dma_in_1510_mode() && dma_chan[lch].next_lch != -1) { int next_lch, cur_lch; char dma_chan_link_map[OMAP_DMA4_LOGICAL_DMA_CH_COUNT]; |