From c4e1662550a3bd23df7cff4611eff67ba2afe078 Mon Sep 17 00:00:00 2001 From: Boojin Kim Date: Fri, 2 Sep 2011 09:44:35 +0900 Subject: ARM: SAMSUNG: Add common DMA operations This patch adds common DMA operations which are used for Samsung DMA drivers. Currently there are two types of DMA driver for Samsung SoCs. The one is S3C-DMA for S3C SoCs and the other is PL330-DMA for S5P SoCs. This patch provides funcion pointers for common DMA operations to DMA client driver like SPI and Audio. It makes DMA client drivers support multi-platform. In addition, this common DMA operations implement the shared actions that are needed for DMA client driver. For example shared actions are filter() function for dma_request_channel() and parameter passing for device_prep_slave_sg(). Signed-off-by: Boojin Kim Acked-by: Linus Walleij Acked-by: Vinod Koul Signed-off-by: Kukjin Kim Signed-off-by: Vinod Koul --- arch/arm/mach-s3c64xx/include/mach/dma.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch/arm/mach-s3c64xx/include/mach/dma.h') diff --git a/arch/arm/mach-s3c64xx/include/mach/dma.h b/arch/arm/mach-s3c64xx/include/mach/dma.h index 0a5d9268a23e..49c3a53135d4 100644 --- a/arch/arm/mach-s3c64xx/include/mach/dma.h +++ b/arch/arm/mach-s3c64xx/include/mach/dma.h @@ -63,6 +63,10 @@ static __inline__ bool s3c_dma_has_circular(void) return true; } +static inline bool samsung_dma_is_dmadev(void) +{ + return false; +} #define S3C2410_DMAF_CIRCULAR (1 << 0) #include -- cgit v1.2.3