From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Mon, 28 Apr 2008 21:44:42 +0000 (+0200)
Subject: ide: remove ->dma_prdtable field from ide_hwif_t
X-Git-Tag: v2.6.26-rc1~688^2~7
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=55224bc86a39409d55e47fd45573642ac709bb8f;p=platform%2Fkernel%2Flinux-stable.git

ide: remove ->dma_prdtable field from ide_hwif_t

* Use 'hwif->dma_base + {4,8}' instead of hwif->dma_prdtable in
  {ide,scc}_dma_setup().

* Remove no longer needed ->dma_prdtable field from ide_hwif_t.

While at it:

* Use ATA_DMA_TABLE_OFS define.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---

diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index 767820d..653b1ad 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -464,9 +464,10 @@ int ide_dma_setup(ide_drive_t *drive)
 
 	/* PRD table */
 	if (hwif->mmio)
-		writel(hwif->dmatable_dma, (void __iomem *)hwif->dma_prdtable);
+		writel(hwif->dmatable_dma,
+		       (void __iomem *)(hwif->dma_base + ATA_DMA_TABLE_OFS));
 	else
-		outl(hwif->dmatable_dma, hwif->dma_prdtable);
+		outl(hwif->dmatable_dma, hwif->dma_base + ATA_DMA_TABLE_OFS);
 
 	/* specify r/w */
 	hwif->OUTB(reading, hwif->dma_command);
@@ -860,8 +861,6 @@ void ide_setup_dma(ide_hwif_t *hwif, unsigned long base)
 		hwif->dma_command	= hwif->dma_base + 0;
 	if (!hwif->dma_status)
 		hwif->dma_status	= hwif->dma_base + 2;
-	if (!hwif->dma_prdtable)
-		hwif->dma_prdtable	= hwif->dma_base + 4;
 
 	hwif->dma_ops = &sff_dma_ops;
 }
diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c
index 1449381..910fb00 100644
--- a/drivers/ide/pci/scc_pata.c
+++ b/drivers/ide/pci/scc_pata.c
@@ -304,7 +304,7 @@ static int scc_dma_setup(ide_drive_t *drive)
 	}
 
 	/* PRD table */
-	out_be32((void __iomem *)hwif->dma_prdtable, hwif->dmatable_dma);
+	out_be32((void __iomem *)(hwif->dma_base + 8), hwif->dmatable_dma);
 
 	/* specify r/w */
 	out_be32((void __iomem *)hwif->dma_command, reading);
@@ -838,7 +838,6 @@ static void __devinit init_hwif_scc(ide_hwif_t *hwif)
 
 	hwif->dma_command = hwif->dma_base;
 	hwif->dma_status = hwif->dma_base + 0x04;
-	hwif->dma_prdtable = hwif->dma_base + 0x08;
 
 	/* PTERADD */
 	out_be32((void __iomem *)(hwif->dma_base + 0x018), hwif->dmatable_dma);
diff --git a/include/linux/ide.h b/include/linux/ide.h
index d1d0111..b0135b0 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -506,7 +506,6 @@ typedef struct hwif_s {
 	unsigned long	dma_base;	/* base addr for dma ports */
 	unsigned long	dma_command;	/* dma command register */
 	unsigned long	dma_status;	/* dma status register */
-	unsigned long	dma_prdtable;	/* actual prd table address */
 
 	unsigned long	config_data;	/* for use by chipset-specific code */
 	unsigned long	select_data;	/* for use by chipset-specific code */