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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-11-24 10:00:10 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-11-24 10:00:10 +0000 |
| commit | d5b7d8c22678a76f2855e0c1fe94bc3886859061 (patch) | |
| tree | e497962b171ae50d546f38925042361fc8dc4318 /arch/arm/plat-mxc/include/mach/dma-mx1-mx2.h | |
| parent | 78d7530ac338e458fa513527ee7bb4278d0d8017 (diff) | |
| parent | 4998f1a30cf8e21c5bc0766fde4fa58e1adabd72 (diff) | |
Merge branch 'for-rmk' of git://git.pengutronix.de/git/imx/linux-2.6 into devel-stable
Diffstat (limited to 'arch/arm/plat-mxc/include/mach/dma-mx1-mx2.h')
| -rw-r--r-- | arch/arm/plat-mxc/include/mach/dma-mx1-mx2.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/plat-mxc/include/mach/dma-mx1-mx2.h b/arch/arm/plat-mxc/include/mach/dma-mx1-mx2.h index b3876cc238c..07be8ad7ec3 100644 --- a/arch/arm/plat-mxc/include/mach/dma-mx1-mx2.h +++ b/arch/arm/plat-mxc/include/mach/dma-mx1-mx2.h @@ -58,6 +58,14 @@ imx_dma_setup_single(int channel, dma_addr_t dma_address, unsigned int dma_length, unsigned int dev_addr, unsigned int dmamode); + +/* + * Use this flag as the dma_length argument to imx_dma_setup_sg() + * to create an endless running dma loop. The end of the scatterlist + * must be linked to the beginning for this to work. + */ +#define IMX_DMA_LENGTH_LOOP ((unsigned int)-1) + int imx_dma_setup_sg(int channel, struct scatterlist *sg, unsigned int sgcount, unsigned int dma_length, |