ata_piix: separate controller IDs into separate enum

Separate controller IDs into a separate enum as Jeff requested.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/ata/ata_piix.c

@@ -118,8 +118,24 @@ enum {
 	PIIX_80C_PRI		= (1 << 5) | (1 << 4),
 	PIIX_80C_SEC		= (1 << 7) | (1 << 6),
 
+	/* constants for mapping table */
+	P0			= 0,  /* port 0 */
+	P1			= 1,  /* port 1 */
+	P2			= 2,  /* port 2 */
+	P3			= 3,  /* port 3 */
+	IDE			= -1, /* IDE */
+	NA			= -2, /* not avaliable */
+	RV			= -3, /* reserved */
+
+	PIIX_AHCI_DEVICE	= 6,
+
+	/* host->flags bits */
+	PIIX_HOST_BROKEN_SUSPEND = (1 << 24),
+};
+
+enum piix_controller_ids {
 	/* controller IDs */
-	piix_pata_mwdma		= 0,	/* PIIX3 MWDMA only */
+	piix_pata_mwdma,	/* PIIX3 MWDMA only */
 	piix_pata_33,		/* PIIX4 at 33Mhz */
 	ich_pata_33,		/* ICH up to UDMA 33 only */
 	ich_pata_66,		/* ICH up to 66 Mhz */
@@ -133,20 +149,6 @@ enum {
 	ich8m_apple_sata_ahci,	/* locks up on second port enable */
 	tolapai_sata_ahci,
 	piix_pata_vmw,			/* PIIX4 for VMware, spurious DMA_ERR */
-
-	/* constants for mapping table */
-	P0			= 0,  /* port 0 */
-	P1			= 1,  /* port 1 */
-	P2			= 2,  /* port 2 */
-	P3			= 3,  /* port 3 */
-	IDE			= -1, /* IDE */
-	NA			= -2, /* not avaliable */
-	RV			= -3, /* reserved */
-
-	PIIX_AHCI_DEVICE	= 6,
-
-	/* host->flags bits */
-	PIIX_HOST_BROKEN_SUSPEND = (1 << 24),
 };
 
 struct piix_map_db {