omap3 gpmc: functionality enhancement

few functions added in gpmc module and to be used by other drivers like NAND.

Signed-off-by: Sukumar Ghorai <s-ghorai@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index ee87325..ec8eb31 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -319,7 +319,7 @@
 		} while (len);
 
 		/* disable and stop the PFPW engine */
-		gpmc_prefetch_reset();
+		gpmc_prefetch_reset(info->gpmc_cs);
 	}
 }
 
@@ -363,7 +363,7 @@
 		}
 
 		/* disable and stop the PFPW engine */
-		gpmc_prefetch_reset();
+		gpmc_prefetch_reset(info->gpmc_cs);
 	}
 }