ARM: SAMSUNG: Make dma request compatible to generic dma bindings.

This patch make the dma dev request operation compatible for both
DT and non-DT cases. It takes the all the arguments required for
dma_request_slave_channel and dma_request_channel. If the driver
is initiated via DT or non-DT the corresponding call will be made.

Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

3 files changed, 12 insertions, 4 deletions

diff --git a/arch/arm/plat-samsung/dma-ops.c b/arch/arm/plat-samsung/dma-ops.c
index d088afa034e8..71d58ddea9c1 100644
--- a/arch/arm/plat-samsung/dma-ops.c
+++ b/arch/arm/plat-samsung/dma-ops.c
@@ -19,7 +19,8 @@
 #include <mach/dma.h>
 
 static unsigned samsung_dmadev_request(enum dma_ch dma_ch,
-                                struct samsung_dma_req *param)
+                                struct samsung_dma_req *param,
+                                struct device *dev, char *ch_name)
 {
         dma_cap_mask_t mask;
         void *filter_param;
@@ -33,7 +34,12 @@ static unsigned samsung_dmadev_request(enum dma_ch dma_ch,
          */
         filter_param = (dma_ch == DMACH_DT_PROP) ?
                 (void *)param->dt_dmach_prop : (void *)dma_ch;
-        return (unsigned)dma_request_channel(mask, pl330_filter, filter_param);
+
+        if (dev->of_node)
+                return (unsigned)dma_request_slave_channel(dev, ch_name);
+        else
+                return (unsigned)dma_request_channel(mask, pl330_filter,
+                                                        filter_param);
 }
 
 static int samsung_dmadev_release(unsigned ch, void *param)
diff --git a/arch/arm/plat-samsung/include/plat/dma-ops.h b/arch/arm/plat-samsung/include/plat/dma-ops.h
index f5144cdd3001..114178268b75 100644
--- a/arch/arm/plat-samsung/include/plat/dma-ops.h
+++ b/arch/arm/plat-samsung/include/plat/dma-ops.h
@@ -39,7 +39,8 @@ struct samsung_dma_config {
 };
 
 struct samsung_dma_ops {
-        unsigned (*request)(enum dma_ch ch, struct samsung_dma_req *param);
+        unsigned (*request)(enum dma_ch ch, struct samsung_dma_req *param,
+                                struct device *dev, char *ch_name);
         int (*release)(unsigned ch, void *param);
         int (*config)(unsigned ch, struct samsung_dma_config *param);
         int (*prepare)(unsigned ch, struct samsung_dma_prep *param);
diff --git a/arch/arm/plat-samsung/s3c-dma-ops.c b/arch/arm/plat-samsung/s3c-dma-ops.c
index f99448c48d30..0cc40aea3f5a 100644
--- a/arch/arm/plat-samsung/s3c-dma-ops.c
+++ b/arch/arm/plat-samsung/s3c-dma-ops.c
@@ -36,7 +36,8 @@ static void s3c_dma_cb(struct s3c2410_dma_chan *channel, void *param,
 }
 
 static unsigned s3c_dma_request(enum dma_ch dma_ch,
-                                        struct samsung_dma_req *param)
+                                struct samsung_dma_req *param,
+                                struct device *dev, char *ch_name)
 {
         struct cb_data *data;