[PATCH 07/10] ARM: OMAP2/3: sDMA: Correct omap_request_dma_chain()

[Tony Lindgren <tony@atomide.com>]

From: Santosh Shilimkar <santosh.shilimkar@ti.com>

Original OMAP DMA chaining design has chain_id as one of the callback
parameters. Patch 538528de0cb256f65716ab2e9613d9e920f97fe2 broke
the desing.

Change the callback to return the logical channel number and not
chain_id.

More details are on this email thread:

http://marc.info/?l=linux-omap&m=122961071931459&w=2

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/plat-omap/dma.c              |    2 +-
 arch/arm/plat-omap/include/mach/dma.h |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index 58d98ad..06e9cbe 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -1220,7 +1220,7 @@ static void create_dma_lch_chain(int lch_head, int lch_queue)
  * 	     Failure: -EINVAL/-ENOMEM
  */
 int omap_request_dma_chain(int dev_id, const char *dev_name,
-			   void (*callback) (int chain_id, u16 ch_status,
+			   void (*callback) (int lch, u16 ch_status,
 					     void *data),
 			   int *chain_id, int no_of_chans, int chain_mode,
 			   struct omap_dma_channel_params params)
diff --git a/arch/arm/plat-omap/include/mach/dma.h b/arch/arm/plat-omap/include/mach/dma.h
index 35fefdb..19df76f 100644
--- a/arch/arm/plat-omap/include/mach/dma.h
+++ b/arch/arm/plat-omap/include/mach/dma.h
@@ -532,7 +532,7 @@ extern int omap_get_dma_index(int lch, int *ei, int *fi);
 /* Chaining APIs */
 #ifndef CONFIG_ARCH_OMAP1
 extern int omap_request_dma_chain(int dev_id, const char *dev_name,
-				  void (*callback) (int chain_id, u16 ch_status,
+				  void (*callback) (int lch, u16 ch_status,
 						    void *data),
 				  int *chain_id, int no_of_chans,
 				  int chain_mode,