ARM: OMAP: Pass logical DMA channel number always to callback handlers

This makes parameter passing to DMA handlers uniform between non-chained
and chained transfers and makes debugging easier. Additional data like
chain_id can be always passed to handlers via callback data if needed.

Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index a46676d..3e94683 100644 (file)
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -1705,14 +1705,8 @@ static int omap2_dma_handle_ch(int ch)
                status = OMAP_DMA_CSR_REG(ch);
        }
 
-       if (likely(dma_chan[ch].callback != NULL)) {
-               if (dma_chan[ch].chain_id != -1)
-                       dma_chan[ch].callback(dma_chan[ch].chain_id, status,
-                                             dma_chan[ch].data);
-               else
-                       dma_chan[ch].callback(ch, status, dma_chan[ch].data);
-
-       }
+       if (likely(dma_chan[ch].callback != NULL))
+               dma_chan[ch].callback(ch, status, dma_chan[ch].data);
 
        OMAP_DMA_CSR_REG(ch) = status;