[MTD] NAND: Fix ams-delta after core conversion

[Jonathan McDowell <noodles@earth.li>]

The recent hwctrl core conversion for MTD NAND devices broke the Amstrad
Delta driver. This fixes it up and uses the existing control line
defines rather than unclear magic numbers.

Signed-Off-By: Jonathan McDowell <noodles@earth.li>

-----
diff --git a/drivers/mtd/nand/ams-delta.c b/drivers/mtd/nand/ams-delta.c
index d7897dc..a0ba07c 100644
--- a/drivers/mtd/nand/ams-delta.c
+++ b/drivers/mtd/nand/ams-delta.c
@@ -130,11 +130,13 @@ static void ams_delta_hwcontrol(struct m
 	if (ctrl & NAND_CTRL_CHANGE) {
 		unsigned long bits;
 
-		bits = (~ctrl & NAND_NCE) << 2;
-		bits |= (ctrl & NAND_CLE) << 7;
-		bits |= (ctrl & NAND_ALE) << 6;
+		bits = (~ctrl & NAND_NCE) ? AMS_DELTA_LATCH2_NAND_NCE : 0;
+		bits |= (ctrl & NAND_CLE) ? AMS_DELTA_LATCH2_NAND_CLE : 0;
+		bits |= (ctrl & NAND_ALE) ? AMS_DELTA_LATCH2_NAND_ALE : 0;
 
-		ams_delta_latch2_write(0xC2, bits);
+		ams_delta_latch2_write(AMS_DELTA_LATCH2_NAND_CLE |
+				AMS_DELTA_LATCH2_NAND_ALE |
+				AMS_DELTA_LATCH2_NAND_NCE, bits);
 	}
 
 	if (cmd != NAND_CMD_NONE)
-----

J.

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