ide: add ide_set_dma() helper (v2)

* add ide_set_dma() helper and make ide_hwif_t.ide_dma_check return
  -1 when DMA needs to be disabled (== need to call ->ide_dma_off_quietly)
   0 when DMA needs to be enabled  (== need to call ->ide_dma_on)
   1 when DMA setting shouldn't be changed
* fix IDE code to use ide_set_dma() instead if using ->ide_dma_check directly

v2:
* updated for scc_pata

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

27 files changed, 76 insertions, 114 deletions

diff --git a/drivers/ide/pci/aec62xx.c b/drivers/ide/pci/aec62xx.c
index 25892814b31..990eafe5ea1 100644
--- a/drivers/ide/pci/aec62xx.c
+++ b/drivers/ide/pci/aec62xx.c
@@ -209,15 +209,13 @@ static void aec62xx_tune_drive (ide_drive_t *drive, u8 pio)
 
 static int aec62xx_config_drive_xfer_rate (ide_drive_t *drive)
 {
-	ide_hwif_t *hwif	= HWIF(drive);
-
 	if (ide_use_dma(drive) && config_chipset_for_dma(drive))
-		return hwif->ide_dma_on(drive);
+		return 0;
 
 	if (ide_use_fast_pio(drive))
 		aec62xx_tune_drive(drive, 5);
 
-	return hwif->ide_dma_off_quietly(drive);
+	return -1;
 }
 
 static int aec62xx_irq_timeout (ide_drive_t *drive)
diff --git a/drivers/ide/pci/alim15x3.c b/drivers/ide/pci/alim15x3.c
index 2baed4e04be..4debd18d52f 100644
--- a/drivers/ide/pci/alim15x3.c
+++ b/drivers/ide/pci/alim15x3.c
@@ -507,17 +507,15 @@ static int config_chipset_for_dma (ide_drive_t *drive)
  *
  *	Configure a drive for DMA operation. If DMA is not possible we
  *	drop the drive into PIO mode instead.
- *
- *	FIXME: exactly what are we trying to return here
  */
- 
+
 static int ali15x3_config_drive_for_dma(ide_drive_t *drive)
 {
 	ide_hwif_t *hwif	= HWIF(drive);
 	struct hd_driveid *id	= drive->id;
 
 	if ((m5229_revision<=0x20) && (drive->media!=ide_disk))
-		return hwif->ide_dma_off_quietly(drive);
+		goto no_dma_set;
 
 	drive->init_speed = 0;
 
@@ -552,9 +550,10 @@ try_dma_modes:
 ata_pio:
 		hwif->tuneproc(drive, 255);
 no_dma_set:
-		return hwif->ide_dma_off_quietly(drive);
+		return -1;
 	}
-	return hwif->ide_dma_on(drive);
+
+	return 0;
 }
 
 /**
diff --git a/drivers/ide/pci/amd74xx.c b/drivers/ide/pci/amd74xx.c
index a4336995a41..7989bdd842a 100644
--- a/drivers/ide/pci/amd74xx.c
+++ b/drivers/ide/pci/amd74xx.c
@@ -304,8 +304,9 @@ static int amd74xx_ide_dma_check(ide_drive_t *drive)
 	amd_set_drive(drive, speed);
 
 	if (drive->autodma && (speed & XFER_MODE) != XFER_PIO)
-		return HWIF(drive)->ide_dma_on(drive);
-	return HWIF(drive)->ide_dma_off_quietly(drive);
+		return 0;
+
+	return -1;
 }
 
 /*
diff --git a/drivers/ide/pci/atiixp.c b/drivers/ide/pci/atiixp.c
index 6d372c4e1d8..e7b4415adc8 100644
--- a/drivers/ide/pci/atiixp.c
+++ b/drivers/ide/pci/atiixp.c
@@ -252,21 +252,20 @@ static int atiixp_config_drive_for_dma(ide_drive_t *drive)
 
 static int atiixp_dma_check(ide_drive_t *drive)
 {
-	ide_hwif_t *hwif	= HWIF(drive);
 	u8 tspeed, speed;
 
 	drive->init_speed = 0;
 
 	if (ide_use_dma(drive) && atiixp_config_drive_for_dma(drive))
-		return hwif->ide_dma_on(drive);
+		return 0;
 
 	if (ide_use_fast_pio(drive)) {
 		tspeed = ide_get_best_pio_mode(drive, 255, 5, NULL);
 		speed = atiixp_dma_2_pio(XFER_PIO_0 + tspeed) + XFER_PIO_0;
-		hwif->speedproc(drive, speed);
+		atiixp_speedproc(drive, speed);
 	}
 
-	return hwif->ide_dma_off_quietly(drive);
+	return -1;
 }
 
 /**
diff --git a/drivers/ide/pci/cmd64x.c b/drivers/ide/pci/cmd64x.c
index 28f58088669..49df27513da 100644
--- a/drivers/ide/pci/cmd64x.c
+++ b/drivers/ide/pci/cmd64x.c
@@ -474,15 +474,13 @@ static int config_chipset_for_dma (ide_drive_t *drive)
 
 static int cmd64x_config_drive_for_dma (ide_drive_t *drive)
 {
-	ide_hwif_t *hwif	= HWIF(drive);
-
 	if (ide_use_dma(drive) && config_chipset_for_dma(drive))
-		return hwif->ide_dma_on(drive);
+		return 0;
 
 	if (ide_use_fast_pio(drive))
 		config_chipset_for_pio(drive, 1);
 
-	return hwif->ide_dma_off_quietly(drive);
+	return -1;
 }
 
 static int cmd64x_alt_dma_status (struct pci_dev *dev)
diff --git a/drivers/ide/pci/cs5520.c b/drivers/ide/pci/cs5520.c
index ba6786aabf3..400859a839f 100644
--- a/drivers/ide/pci/cs5520.c
+++ b/drivers/ide/pci/cs5520.c
@@ -132,12 +132,11 @@ static void cs5520_tune_drive(ide_drive_t *drive, u8 pio)
 
 static int cs5520_config_drive_xfer_rate(ide_drive_t *drive)
 {
-	ide_hwif_t *hwif = HWIF(drive);
-
 	/* Tune the drive for PIO modes up to PIO 4 */	
 	cs5520_tune_drive(drive, 4);
+
 	/* Then tell the core to use DMA operations */
-	return hwif->ide_dma_on(drive);
+	return 0;
 }
 
 /*
diff --git a/drivers/ide/pci/cs5530.c b/drivers/ide/pci/cs5530.c
index 68b5d278ca0..ff909cfb96b 100644
--- a/drivers/ide/pci/cs5530.c
+++ b/drivers/ide/pci/cs5530.c
@@ -196,10 +196,7 @@ static int cs5530_config_dma (ide_drive_t *drive)
 		outl(timings, basereg + 12);	/* write drive1 config register */
 	}
 
-	/*
-	 * Finally, turn DMA on in software, and exit.
-	 */
-	return hwif->ide_dma_on(drive);	/* success */
+	return 0;	/* success */
 }
 
 /**
diff --git a/drivers/ide/pci/cs5535.c b/drivers/ide/pci/cs5535.c
index cd7c4190ad6..45f43efbf92 100644
--- a/drivers/ide/pci/cs5535.c
+++ b/drivers/ide/pci/cs5535.c
@@ -195,20 +195,19 @@ static int cs5535_config_drive_for_dma(ide_drive_t *drive)
 
 static int cs5535_dma_check(ide_drive_t *drive)
 {
-	ide_hwif_t *hwif	= drive->hwif;
 	u8 speed;
 
 	drive->init_speed = 0;
 
 	if (ide_use_dma(drive) && cs5535_config_drive_for_dma(drive))
-		return hwif->ide_dma_on(drive);
+		return 0;
 
 	if (ide_use_fast_pio(drive)) {
 		speed = ide_get_best_pio_mode(drive, 255, 4, NULL);
 		cs5535_set_drive(drive, speed);
 	}
 
-	return hwif->ide_dma_off_quietly(drive);
+	return -1;
 }
 
 static u8 __devinit cs5535_cable_detect(struct pci_dev *dev)
diff --git a/drivers/ide/pci/hpt34x.c b/drivers/ide/pci/hpt34x.c
index c65971d8d6a..924eaa3a570 100644
--- a/drivers/ide/pci/hpt34x.c
+++ b/drivers/ide/pci/hpt34x.c
@@ -109,21 +109,19 @@ static int config_chipset_for_dma (ide_drive_t *drive)
 
 static int hpt34x_config_drive_xfer_rate (ide_drive_t *drive)
 {
-	ide_hwif_t *hwif	= HWIF(drive);
-
 	drive->init_speed = 0;
 
 	if (ide_use_dma(drive) && config_chipset_for_dma(drive))
 #ifndef CONFIG_HPT34X_AUTODMA
-		return hwif->ide_dma_off_quietly(drive);
+		return -1;
 #else
-		return hwif->ide_dma_on(drive);
+		return 0;
 #endif
 
 	if (ide_use_fast_pio(drive))
 		hpt34x_tune_drive(drive, 255);
 
-	return hwif->ide_dma_off_quietly(drive);
+	return -1;
 }
 
 /*
diff --git a/drivers/ide/pci/hpt366.c b/drivers/ide/pci/hpt366.c
index 752b6d6dde0..60ecdc258c7 100644
--- a/drivers/ide/pci/hpt366.c
+++ b/drivers/ide/pci/hpt366.c
@@ -736,17 +736,15 @@ static void hpt3xx_maskproc(ide_drive_t *drive, int mask)
 
 static int hpt366_config_drive_xfer_rate(ide_drive_t *drive)
 {
-	ide_hwif_t *hwif	= HWIF(drive);
-
 	drive->init_speed = 0;
 
 	if (ide_use_dma(drive) && config_chipset_for_dma(drive))
-		return hwif->ide_dma_on(drive);
+		return 0;
 
 	if (ide_use_fast_pio(drive))
 		hpt3xx_tune_drive(drive, 255);
 
-	return hwif->ide_dma_off_quietly(drive);
+	return -1;
 }
 
 /*
diff --git a/drivers/ide/pci/it8213.c b/drivers/ide/pci/it8213.c
index 63248b6909f..424f00bb160 100644
--- a/drivers/ide/pci/it8213.c
+++ b/drivers/ide/pci/it8213.c
@@ -244,17 +244,15 @@ static int config_chipset_for_dma (ide_drive_t *drive)
 
 static int it8213_config_drive_for_dma (ide_drive_t *drive)
 {
-	ide_hwif_t *hwif = drive->hwif;
+	u8 pio;
 
-	if (ide_use_dma(drive)) {
-		if (config_chipset_for_dma(drive))
-			return hwif->ide_dma_on(drive);
-	}
+	if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+		return 0;
 
-	hwif->speedproc(drive, XFER_PIO_0
-			+ ide_get_best_pio_mode(drive, 255, 4, NULL));
+	pio = ide_get_best_pio_mode(drive, 255, 4, NULL);
+	it8213_tune_chipset(drive, XFER_PIO_0 + pio);
 
- 	return hwif->ide_dma_off_quietly(drive);
+	return -1;
 }
 
 /**
diff --git a/drivers/ide/pci/it821x.c b/drivers/ide/pci/it821x.c
index e9bad185968..35ee17df3f8 100644
--- a/drivers/ide/pci/it821x.c
+++ b/drivers/ide/pci/it821x.c
@@ -520,14 +520,12 @@ static int config_chipset_for_dma (ide_drive_t *drive)
 
 static int it821x_config_drive_for_dma (ide_drive_t *drive)
 {
-	ide_hwif_t *hwif	= drive->hwif;
+	if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+		return 0;
 
-	if (ide_use_dma(drive)) {
-		if (config_chipset_for_dma(drive))
-			return hwif->ide_dma_on(drive);
-	}
 	config_it821x_chipset_for_pio(drive, 1);
-	return hwif->ide_dma_off_quietly(drive);
+
+	return -1;
 }
 
 /**
@@ -612,7 +610,7 @@ static void __devinit it821x_fixups(ide_hwif_t *hwif)
 #ifdef CONFIG_IDEDMA_ONLYDISK
 			if (drive->media == ide_disk)
 #endif
-				hwif->ide_dma_check(drive);
+				ide_set_dma(drive);
 		} else {
 			/* Non RAID volume. Fixups to stop the core code
 			   doing unsupported things */
diff --git a/drivers/ide/pci/jmicron.c b/drivers/ide/pci/jmicron.c
index 75c2b409908..53f25500c22 100644
--- a/drivers/ide/pci/jmicron.c
+++ b/drivers/ide/pci/jmicron.c
@@ -164,14 +164,12 @@ static int config_chipset_for_dma (ide_drive_t *drive)
 
 static int jmicron_config_drive_for_dma (ide_drive_t *drive)
 {
-	ide_hwif_t *hwif	= drive->hwif;
+	if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+		return 0;
 
-	if (ide_use_dma(drive)) {
-		if (config_chipset_for_dma(drive))
-			return hwif->ide_dma_on(drive);
-	}
 	config_jmicron_chipset_for_pio(drive, 1);
-	return hwif->ide_dma_off_quietly(drive);
+
+	return -1;
 }
 
 /**
diff --git a/drivers/ide/pci/ns87415.c b/drivers/ide/pci/ns87415.c
index 7f2090fac6c..b310c4f5107 100644
--- a/drivers/ide/pci/ns87415.c
+++ b/drivers/ide/pci/ns87415.c
@@ -190,7 +190,8 @@ static int ns87415_ide_dma_setup(ide_drive_t *drive)
 static int ns87415_ide_dma_check (ide_drive_t *drive)
 {
 	if (drive->media != ide_disk)
-		return HWIF(drive)->ide_dma_off_quietly(drive);
+		return -1;
+
 	return __ide_dma_check(drive);
 }
 
diff --git a/drivers/ide/pci/pdc202xx_new.c b/drivers/ide/pci/pdc202xx_new.c
index b780e15e9f3..6ceb25bc5a7 100644
--- a/drivers/ide/pci/pdc202xx_new.c
+++ b/drivers/ide/pci/pdc202xx_new.c
@@ -281,17 +281,15 @@ static int config_chipset_for_dma(ide_drive_t *drive)
 
 static int pdcnew_config_drive_xfer_rate(ide_drive_t *drive)
 {
-	ide_hwif_t *hwif	= HWIF(drive);
-
 	drive->init_speed = 0;
 
 	if (ide_use_dma(drive) && config_chipset_for_dma(drive))
-		return hwif->ide_dma_on(drive);
+		return 0;
 
 	if (ide_use_fast_pio(drive))
-		hwif->tuneproc(drive, 255);
+		pdcnew_tune_drive(drive, 255);
 
-	return hwif->ide_dma_off_quietly(drive);
+	return -1;
 }
 
 static int pdcnew_quirkproc(ide_drive_t *drive)
diff --git a/drivers/ide/pci/pdc202xx_old.c b/drivers/ide/pci/pdc202xx_old.c
index b2b8e6ea7e9..a7a639fe1ea 100644
--- a/drivers/ide/pci/pdc202xx_old.c
+++ b/drivers/ide/pci/pdc202xx_old.c
@@ -322,17 +322,15 @@ chipset_is_set:
 
 static int pdc202xx_config_drive_xfer_rate (ide_drive_t *drive)
 {
-	ide_hwif_t *hwif	= HWIF(drive);
-
 	drive->init_speed = 0;
 
 	if (ide_use_dma(drive) && config_chipset_for_dma(drive))
-		return hwif->ide_dma_on(drive);
+		return 0;
 
 	if (ide_use_fast_pio(drive))
 		pdc202xx_tune_drive(drive, 255);
 
-	return hwif->ide_dma_off_quietly(drive);
+	return -1;
 }
 
 static int pdc202xx_quirkproc (ide_drive_t *drive)
diff --git a/drivers/ide/pci/piix.c b/drivers/ide/pci/piix.c
index caf606a1ee8..569822f4cf5 100644
--- a/drivers/ide/pci/piix.c
+++ b/drivers/ide/pci/piix.c
@@ -386,19 +386,17 @@ static int piix_config_drive_for_dma (ide_drive_t *drive)
  
 static int piix_config_drive_xfer_rate (ide_drive_t *drive)
 {
-	ide_hwif_t *hwif	= HWIF(drive);
-
 	drive->init_speed = 0;
 
 	if (ide_use_dma(drive) && piix_config_drive_for_dma(drive))
-		return hwif->ide_dma_on(drive);
+		return 0;
 
 	if (ide_use_fast_pio(drive))
 		/* Find best PIO mode. */
-		(void) hwif->speedproc(drive, XFER_PIO_0 +
-				       ide_get_best_pio_mode(drive, 255, 4, NULL));
+		piix_tune_chipset(drive, XFER_PIO_0 +
+				  ide_get_best_pio_mode(drive, 255, 4, NULL));
 
-	return hwif->ide_dma_off_quietly(drive);
+	return -1;
 }
 
 /**
diff --git a/drivers/ide/pci/sc1200.c b/drivers/ide/pci/sc1200.c
index 8d762d323f8..08e317f281e 100644
--- a/drivers/ide/pci/sc1200.c
+++ b/drivers/ide/pci/sc1200.c
@@ -241,10 +241,7 @@ static int sc1200_config_dma2 (ide_drive_t *drive, int mode)
 
 	outb(inb(hwif->dma_base+2)|(unit?0x40:0x20), hwif->dma_base+2);	/* set DMA_capable bit */
 
-	/*
-	 * Finally, turn DMA on in software, and exit.
-	 */
-	return hwif->ide_dma_on(drive);	/* success */
+	return 0;	/* success */
 }
 
 /*
diff --git a/drivers/ide/pci/serverworks.c b/drivers/ide/pci/serverworks.c
index f44a5ab8fe0..dbcd37a0c65 100644
--- a/drivers/ide/pci/serverworks.c
+++ b/drivers/ide/pci/serverworks.c
@@ -315,17 +315,15 @@ static int config_chipset_for_dma (ide_drive_t *drive)
 
 static int svwks_config_drive_xfer_rate (ide_drive_t *drive)
 {
-	ide_hwif_t *hwif	= HWIF(drive);
-
 	drive->init_speed = 0;
 
 	if (ide_use_dma(drive) && config_chipset_for_dma(drive))
-		return hwif->ide_dma_on(drive);
+		return 0;
 
 	if (ide_use_fast_pio(drive))
 		config_chipset_for_pio(drive);
 
-	return hwif->ide_dma_off_quietly(drive);
+	return -1;
 }
 
 static unsigned int __devinit init_chipset_svwks (struct pci_dev *dev, const char *name)
diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c
index 290697e09e5..cb5c3211bd8 100644
--- a/drivers/ide/pci/sgiioc4.c
+++ b/drivers/ide/pci/sgiioc4.c
@@ -296,9 +296,9 @@ static int sgiioc4_ide_dma_check(ide_drive_t *drive)
 	if (ide_config_drive_speed(drive, XFER_MW_DMA_2) != 0) {
 		printk(KERN_WARNING "%s: couldn't set MWDMA2 mode, "
 				    "using PIO instead\n", drive->name);
-		return sgiioc4_ide_dma_off_quietly(drive);
+		return -1;
 	} else
-		return sgiioc4_ide_dma_on(drive);
+		return 0;
 }
 
 /* returns 1 if dma irq issued, 0 otherwise */
diff --git a/drivers/ide/pci/siimage.c b/drivers/ide/pci/siimage.c
index 1e5b8b17e6d..7b4c189a9d9 100644
--- a/drivers/ide/pci/siimage.c
+++ b/drivers/ide/pci/siimage.c
@@ -414,15 +414,13 @@ static int config_chipset_for_dma (ide_drive_t *drive)
  
 static int siimage_config_drive_for_dma (ide_drive_t *drive)
 {
-	ide_hwif_t *hwif	= HWIF(drive);
-
 	if (ide_use_dma(drive) && config_chipset_for_dma(drive))
-		return hwif->ide_dma_on(drive);
+		return 0;
 
 	if (ide_use_fast_pio(drive))
 		config_chipset_for_pio(drive, 1);
 
-	return hwif->ide_dma_off_quietly(drive);
+	return -1;
 }
 
 /* returns 1 if dma irq issued, 0 otherwise */
diff --git a/drivers/ide/pci/sis5513.c b/drivers/ide/pci/sis5513.c
index 53ffeced06f..2ba0669f36a 100644
--- a/drivers/ide/pci/sis5513.c
+++ b/drivers/ide/pci/sis5513.c
@@ -669,19 +669,17 @@ static int config_chipset_for_dma (ide_drive_t *drive)
 
 static int sis5513_config_xfer_rate(ide_drive_t *drive)
 {
-	ide_hwif_t *hwif	= HWIF(drive);
-
 	config_art_rwp_pio(drive, 5);
 
 	drive->init_speed = 0;
 
 	if (ide_use_dma(drive) && config_chipset_for_dma(drive))
-		return hwif->ide_dma_on(drive);
+		return 0;
 
 	if (ide_use_fast_pio(drive))
 		sis5513_tune_drive(drive, 5);
 
-	return hwif->ide_dma_off_quietly(drive);
+	return -1;
 }
 
 /* Chip detection and general config */
diff --git a/drivers/ide/pci/sl82c105.c b/drivers/ide/pci/sl82c105.c
index c7025858f23..27b21e12026 100644
--- a/drivers/ide/pci/sl82c105.c
+++ b/drivers/ide/pci/sl82c105.c
@@ -161,14 +161,14 @@ static int sl82c105_check_drive (ide_drive_t *drive)
 		if (id->field_valid & 2) {
 			if ((id->dma_mword & hwif->mwdma_mask) ||
 			    (id->dma_1word & hwif->swdma_mask))
-				return hwif->ide_dma_on(drive);
+				return 0;
 		}
 
 		if (__ide_dma_good_drive(drive) && id->eide_dma_time < 150)
-			return hwif->ide_dma_on(drive);
+			return 0;
 	} while (0);
 
-	return hwif->ide_dma_off_quietly(drive);
+	return -1;
 }
 
 /*
diff --git a/drivers/ide/pci/slc90e66.c b/drivers/ide/pci/slc90e66.c
index 917cc8e61e4..ae7eb58d961 100644
--- a/drivers/ide/pci/slc90e66.c
+++ b/drivers/ide/pci/slc90e66.c
@@ -179,18 +179,16 @@ static int slc90e66_config_drive_for_dma (ide_drive_t *drive)
 
 static int slc90e66_config_drive_xfer_rate (ide_drive_t *drive)
 {
-	ide_hwif_t *hwif	= HWIF(drive);
-
 	drive->init_speed = 0;
 
 	if (ide_use_dma(drive) && slc90e66_config_drive_for_dma(drive))
-		return hwif->ide_dma_on(drive);
+		return 0;
 
 	if (ide_use_fast_pio(drive))
-		(void) hwif->speedproc(drive, XFER_PIO_0 +
-				       ide_get_best_pio_mode(drive, 255, 4, NULL));
+		(void)slc90e66_tune_chipset(drive, XFER_PIO_0 +
+				ide_get_best_pio_mode(drive, 255, 4, NULL));
 
-	return hwif->ide_dma_off_quietly(drive);
+	return -1;
 }
 
 static void __devinit init_hwif_slc90e66 (ide_hwif_t *hwif)
diff --git a/drivers/ide/pci/tc86c001.c b/drivers/ide/pci/tc86c001.c
index 3703fc87d15..0b6d81d6ce4 100644
--- a/drivers/ide/pci/tc86c001.c
+++ b/drivers/ide/pci/tc86c001.c
@@ -185,15 +185,13 @@ static int config_chipset_for_dma(ide_drive_t *drive)
 
 static int tc86c001_config_drive_xfer_rate(ide_drive_t *drive)
 {
-	ide_hwif_t *hwif	= HWIF(drive);
-
 	if (ide_use_dma(drive) && config_chipset_for_dma(drive))
-		return hwif->ide_dma_on(drive);
+		return 0;
 
 	if (ide_use_fast_pio(drive))
 		tc86c001_tune_drive(drive, 255);
 
-	return hwif->ide_dma_off_quietly(drive);
+	return -1;
 }
 
 static void __devinit init_hwif_tc86c001(ide_hwif_t *hwif)
diff --git a/drivers/ide/pci/triflex.c b/drivers/ide/pci/triflex.c
index 1f5f6759fef..5e06179c346 100644
--- a/drivers/ide/pci/triflex.c
+++ b/drivers/ide/pci/triflex.c
@@ -113,13 +113,12 @@ static int triflex_config_drive_for_dma(ide_drive_t *drive)
 
 static int triflex_config_drive_xfer_rate(ide_drive_t *drive)
 {
-	ide_hwif_t *hwif	= HWIF(drive);
-
 	if (ide_use_dma(drive) && triflex_config_drive_for_dma(drive))
-		return hwif->ide_dma_on(drive);
+		return 0;
+
+	triflex_tune_drive(drive, 255);
 
-	hwif->tuneproc(drive, 255);
-	return hwif->ide_dma_off_quietly(drive);
+	return -1;
 }
 
 static void __devinit init_hwif_triflex(ide_hwif_t *hwif)
diff --git a/drivers/ide/pci/via82cxxx.c b/drivers/ide/pci/via82cxxx.c
index 6fb6e50b823..a508550c409 100644
--- a/drivers/ide/pci/via82cxxx.c
+++ b/drivers/ide/pci/via82cxxx.c
@@ -240,8 +240,9 @@ static int via82cxxx_ide_dma_check (ide_drive_t *drive)
 	via_set_drive(drive, speed);
 
 	if (drive->autodma && (speed & XFER_MODE) != XFER_PIO)
-		return hwif->ide_dma_on(drive);
-	return hwif->ide_dma_off_quietly(drive);
+		return 0;
+
+	return -1;
 }
 
 static struct via_isa_bridge *via_config_find(struct pci_dev **isa)