[ARM] Hide ISA DMA API when ISA_DMA_API is unset

When ISA_DMA_API is unset, we're not implementing the ISA DMA API,
so there's no point in publishing the prototypes via asm/dma.h, nor
including the machine dependent parts of that API.

This allows us to remove a lot of mach/dma.h files which don't contain
any useful code.  Unfortunately though, some platforms put their own
private non-ISA definitions into mach/dma.h, so we leave these behind
and fix the appropriate #include statments.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

2 files changed, 12 insertions, 7 deletions

diff --git a/arch/arm/mach-imx/dma.c b/arch/arm/mach-imx/dma.c
index c10810c936b3..1536583eece0 100644
--- a/arch/arm/mach-imx/dma.c
+++ b/arch/arm/mach-imx/dma.c
@@ -28,10 +28,11 @@
 #include <linux/interrupt.h>
 #include <linux/errno.h>
 
+#include <asm/scatterlist.h>
 #include <asm/system.h>
 #include <asm/irq.h>
 #include <mach/hardware.h>
-#include <asm/dma.h>
+#include <mach/dma.h>
 #include <mach/imx-dma.h>
 
 struct imx_dma_channel imx_dma_channels[IMX_DMA_CHANNELS];
@@ -138,7 +139,7 @@ imx_dma_setup_sg_base(imx_dmach_t dma_ch,
 int
 imx_dma_setup_single(imx_dmach_t dma_ch, dma_addr_t dma_address,
                      unsigned int dma_length, unsigned int dev_addr,
-                     dmamode_t dmamode)
+                     unsigned int dmamode)
 {
         struct imx_dma_channel *imxdma = &imx_dma_channels[dma_ch];
 
@@ -223,7 +224,7 @@ imx_dma_setup_single(imx_dmach_t dma_ch, dma_addr_t dma_address,
 int
 imx_dma_setup_sg(imx_dmach_t dma_ch,
                  struct scatterlist *sg, unsigned int sgcount, unsigned int dma_length,
-                 unsigned int dev_addr, dmamode_t dmamode)
+                 unsigned int dev_addr, unsigned int dmamode)
 {
         int res;
         struct imx_dma_channel *imxdma = &imx_dma_channels[dma_ch];
diff --git a/arch/arm/mach-imx/include/mach/imx-dma.h b/arch/arm/mach-imx/include/mach/imx-dma.h
index 44d89c35539a..bbe54df7f0de 100644
--- a/arch/arm/mach-imx/include/mach/imx-dma.h
+++ b/arch/arm/mach-imx/include/mach/imx-dma.h
@@ -18,7 +18,7 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
-#include <asm/dma.h>
+#include <mach/dma.h>
 
 #ifndef __ASM_ARCH_IMX_DMA_H
 #define __ASM_ARCH_IMX_DMA_H
@@ -48,7 +48,7 @@ struct imx_dma_channel {
         void (*irq_handler) (int, void *);
         void (*err_handler) (int, void *, int errcode);
         void *data;
-        dmamode_t  dma_mode;
+        unsigned int  dma_mode;
         struct scatterlist *sg;
         unsigned int sgbc;
         unsigned int sgcount;
@@ -66,14 +66,18 @@ extern struct imx_dma_channel imx_dma_channels[IMX_DMA_CHANNELS];
 /* The type to distinguish channel numbers parameter from ordinal int type */
 typedef int imx_dmach_t;
 
+#define DMA_MODE_READ           0
+#define DMA_MODE_WRITE          1
+#define DMA_MODE_MASK           1
+
 int
 imx_dma_setup_single(imx_dmach_t dma_ch, dma_addr_t dma_address,
-                unsigned int dma_length, unsigned int dev_addr, dmamode_t dmamode);
+                unsigned int dma_length, unsigned int dev_addr, unsigned int dmamode);
 
 int
 imx_dma_setup_sg(imx_dmach_t dma_ch,
                  struct scatterlist *sg, unsigned int sgcount, unsigned int dma_length,
-                 unsigned int dev_addr, dmamode_t dmamode);
+                 unsigned int dev_addr, unsigned int dmamode);
 
 int
 imx_dma_setup_handlers(imx_dmach_t dma_ch,