ide: add PIO masks

* Add ATA_PIO[0-6] defines to <linux/ata.h>.

* Add ->pio_mask field to ide_pci_device_t and ide_hwif_t.

* Add PIO masks to host drivers.

<linux/ata.h> change ACK-ed by Jeff Garzik <jeff@garzik.org>.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/pci/pdc202xx_new.c b/drivers/ide/pci/pdc202xx_new.c
index a8a01b4..8a66a28 100644
--- a/drivers/ide/pci/pdc202xx_new.c
+++ b/drivers/ide/pci/pdc202xx_new.c
@@ -568,6 +568,7 @@
 		.init_hwif	= init_hwif_pdc202new,
 		.autodma	= AUTODMA,
 		.bootable	= OFF_BOARD,
+		.pio_mask	= ATA_PIO4,
 		.udma_mask	= 0x3f, /* udma0-5 */
 	},{	/* 1 */
 		.name		= "PDC20269",
@@ -576,6 +577,7 @@
 		.init_hwif	= init_hwif_pdc202new,
 		.autodma	= AUTODMA,
 		.bootable	= OFF_BOARD,
+		.pio_mask	= ATA_PIO4,
 		.udma_mask	= 0x7f, /* udma0-6*/
 	},{	/* 2 */
 		.name		= "PDC20270",
@@ -584,6 +586,7 @@
 		.init_hwif	= init_hwif_pdc202new,
 		.autodma	= AUTODMA,
 		.bootable	= OFF_BOARD,
+		.pio_mask	= ATA_PIO4,
 		.udma_mask	= 0x3f, /* udma0-5 */
 	},{	/* 3 */
 		.name		= "PDC20271",
@@ -592,6 +595,7 @@
 		.init_hwif	= init_hwif_pdc202new,
 		.autodma	= AUTODMA,
 		.bootable	= OFF_BOARD,
+		.pio_mask	= ATA_PIO4,
 		.udma_mask	= 0x7f, /* udma0-6*/
 	},{	/* 4 */
 		.name		= "PDC20275",
@@ -600,6 +604,7 @@
 		.init_hwif	= init_hwif_pdc202new,
 		.autodma	= AUTODMA,
 		.bootable	= OFF_BOARD,
+		.pio_mask	= ATA_PIO4,
 		.udma_mask	= 0x7f, /* udma0-6*/
 	},{	/* 5 */
 		.name		= "PDC20276",
@@ -608,6 +613,7 @@
 		.init_hwif	= init_hwif_pdc202new,
 		.autodma	= AUTODMA,
 		.bootable	= OFF_BOARD,
+		.pio_mask	= ATA_PIO4,
 		.udma_mask	= 0x7f, /* udma0-6*/
 	},{	/* 6 */
 		.name		= "PDC20277",
@@ -616,6 +622,7 @@
 		.init_hwif	= init_hwif_pdc202new,
 		.autodma	= AUTODMA,
 		.bootable	= OFF_BOARD,
+		.pio_mask	= ATA_PIO4,
 		.udma_mask	= 0x7f, /* udma0-6*/
 	}
 };