ARM: OMAP: DMA source and destination addresses are unsigned

Also export some omap24xx specific DMA functions.
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/plat-omap/dma.c

@@ -1422,11 +1422,13 @@ EXPORT_SYMBOL(omap_request_dma);
 EXPORT_SYMBOL(omap_free_dma);
 EXPORT_SYMBOL(omap_start_dma);
 EXPORT_SYMBOL(omap_stop_dma);
+EXPORT_SYMBOL(omap_set_dma_callback);
 EXPORT_SYMBOL(omap_enable_dma_irq);
 EXPORT_SYMBOL(omap_disable_dma_irq);
 
 EXPORT_SYMBOL(omap_set_dma_transfer_params);
 EXPORT_SYMBOL(omap_set_dma_color_mode);
+EXPORT_SYMBOL(omap_set_dma_write_mode);
 
 EXPORT_SYMBOL(omap_set_dma_src_params);
 EXPORT_SYMBOL(omap_set_dma_src_index);

include/asm-arm/arch-omap/dma.h

@@ -338,13 +338,13 @@ struct omap_dma_channel_params {
 
 	int src_port;		/* Only on OMAP1 REVISIT: Is this needed? */
 	int src_amode;		/* constant , post increment, indexed , double indexed */
-	int src_start;		/* source address : physical */
+	unsigned long src_start;	/* source address : physical */
 	int src_ei;		/* source element index */
 	int src_fi;		/* source frame index */
 
 	int dst_port;		/* Only on OMAP1 REVISIT: Is this needed? */
 	int dst_amode;		/* constant , post increment, indexed , double indexed */
-	int dst_start;		/* source address : physical */
+	unsigned long dst_start;	/* source address : physical */
 	int dst_ei;		/* source element index */
 	int dst_fi;		/* source frame index */