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| author | Ben Dooks <ben-linux@fluff.org> | 2009-09-22 19:48:56 +0400 |
|---|---|---|
| committer | Ben Dooks <ben-linux@fluff.org> | 2009-10-28 21:22:57 +0300 |
| commit | e3d8024891dbfec6cf36c9b76177650f48118462 (patch) | |
| tree | 2046fa2ec4259e32b02ef29107fa6ace142e8f8f /arch/arm/mach-s3c6400 | |
| parent | 964fe080d94db82a3268443e9b9ece4c60246414 (diff) | |
| download | linux-e3d8024891dbfec6cf36c9b76177650f48118462.tar.xz | |
ARM: S3C: Add info for supporting circular DMA buffers
The S3C64XX DMA implementation will work a lot better with the ability
to enqueue circular buffers as the hardware can do it's own linked-list
management.
Add a function s3c_dma_has_circular() to show that the system can do this
and a flag for the channel.
Update the s3c24xx/s3c64xx I2S DMA code to deal with this.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Acked-by: Mark Brown <broonie@@opensource.wolfsonmicro.com>
Diffstat (limited to 'arch/arm/mach-s3c6400')
| -rw-r--r-- | arch/arm/mach-s3c6400/include/mach/dma.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c6400/include/mach/dma.h b/arch/arm/mach-s3c6400/include/mach/dma.h index 1067619f0ba0..004edab23954 100644 --- a/arch/arm/mach-s3c6400/include/mach/dma.h +++ b/arch/arm/mach-s3c6400/include/mach/dma.h @@ -68,6 +68,11 @@ static __inline__ int s3c_dma_has_circular(void) #define S3C2410_DMAF_CIRCULAR (1 << 0) +static inline bool s3c_dma_has_circular(void) +{ + return false; +} + #include <plat/dma.h> #endif /* __ASM_ARCH_IRQ_H */ |