From 7a95f8432f9cd9a687ee1b2f395dc30db0a44b3f Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Sat, 26 Apr 2008 22:25:23 +0200
Subject: [PATCH] --- yaml --- r: 93662 b: refs/heads/master c:
 6c61064162e6a9965a062b445c6bd6c8ed019183 h: refs/heads/master v: v3

---
 [refs]                           |  2 +-
 trunk/drivers/ide/pci/sl82c105.c | 35 ++++++++++++++++----------------
 2 files changed, 18 insertions(+), 19 deletions(-)

diff --git a/[refs] b/[refs]
index ebe62f6f0370..d69b1160ea27 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 8552865935538127d2603110b3d36dba2b4e8eff
+refs/heads/master: 6c61064162e6a9965a062b445c6bd6c8ed019183
diff --git a/trunk/drivers/ide/pci/sl82c105.c b/trunk/drivers/ide/pci/sl82c105.c
index 8ac4e62bf1f4..2c2fe59a0d9e 100644
--- a/trunk/drivers/ide/pci/sl82c105.c
+++ b/trunk/drivers/ide/pci/sl82c105.c
@@ -232,7 +232,7 @@ static void sl82c105_resetproc(ide_drive_t *drive)
  * Return the revision of the Winbond bridge
  * which this function is part of.
  */
-static unsigned int sl82c105_bridge_revision(struct pci_dev *dev)
+static u8 sl82c105_bridge_revision(struct pci_dev *dev)
 {
 	struct pci_dev *bridge;
 
@@ -287,27 +287,11 @@ static unsigned int __devinit init_chipset_sl82c105(struct pci_dev *dev, const c
  */
 static void __devinit init_hwif_sl82c105(ide_hwif_t *hwif)
 {
-	struct pci_dev *dev = to_pci_dev(hwif->dev);
-	unsigned int rev;
-
 	DBG(("init_hwif_sl82c105(hwif: ide%d)\n", hwif->index));
 
 	if (!hwif->dma_base)
 		return;
 
-	rev = sl82c105_bridge_revision(dev);
-	if (rev <= 5) {
-		/*
-		 * Never ever EVER under any circumstances enable
-		 * DMA when the bridge is this old.
-		 */
-		printk("    %s: Winbond W83C553 bridge revision %d, "
-		       "BM-DMA disabled\n", hwif->name, rev);
-		return;
-	}
-
-	hwif->mwdma_mask = ATA_MWDMA2;
-
 	hwif->dma_lost_irq		= &sl82c105_dma_lost_irq;
 	hwif->dma_start			= &sl82c105_dma_start;
 	hwif->ide_dma_end		= &sl82c105_dma_end;
@@ -337,11 +321,26 @@ static const struct ide_port_info sl82c105_chipset __devinitdata = {
 #endif
 			  IDE_HFLAG_NO_AUTODMA,
 	.pio_mask	= ATA_PIO5,
+	.mwdma_mask	= ATA_MWDMA2,
 };
 
 static int __devinit sl82c105_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 {
-	return ide_setup_pci_device(dev, &sl82c105_chipset);
+	struct ide_port_info d = sl82c105_chipset;
+	u8 rev = sl82c105_bridge_revision(dev);
+
+	if (rev <= 5) {
+		/*
+		 * Never ever EVER under any circumstances enable
+		 * DMA when the bridge is this old.
+		 */
+		printk(KERN_INFO "W82C105_IDE: Winbond W83C553 bridge "
+				 "revision %d, BM-DMA disabled\n", rev);
+		d.init_hwif = NULL;
+		d.mwdma_mask = 0;
+	}
+
+	return ide_setup_pci_device(dev, &d);
 }
 
 static const struct pci_device_id sl82c105_pci_tbl[] = {