ide: remove ->mmio flag from ide_hwif_t

Since scc_pata host driver no longer uses IDE PCI layer / ide_dma_setup()
and all other ->mmio users set also IDE_HFLAG_MMIO host flag we can safely
remove ->mmio flag.

There should be no functional changes caused by this patch.

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

6 files changed, 16 insertions, 18 deletions

diff --git a/drivers/ide/arm/palm_bk3710.c b/drivers/ide/arm/palm_bk3710.c
index 74a05dc6d1e6..3839f5722985 100644
--- a/drivers/ide/arm/palm_bk3710.c
+++ b/drivers/ide/arm/palm_bk3710.c
@@ -405,7 +405,6 @@ static int __devinit palm_bk3710_probe(struct platform_device *pdev)
         ide_init_port_data(hwif, i);
         ide_init_port_hw(hwif, &hw);
 
-        hwif->mmio = 1;
         default_hwif_mmiops(hwif);
 
         idx[0] = i;
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index 174f4704614c..7ee44f86bc54 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -463,7 +463,7 @@ int ide_dma_setup(ide_drive_t *drive)
         }
 
         /* PRD table */
-        if (hwif->mmio)
+        if (hwif->host_flags & IDE_HFLAG_MMIO)
                 writel(hwif->dmatable_dma,
                        (void __iomem *)(hwif->dma_base + ATA_DMA_TABLE_OFS));
         else
diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c
index 37e8cfcabb4b..133053c7a480 100644
--- a/drivers/ide/pci/scc_pata.c
+++ b/drivers/ide/pci/scc_pata.c
@@ -793,7 +793,6 @@ static void __devinit init_mmio_iops_scc(ide_hwif_t *hwif)
 
         hwif->dma_base = dma_base;
         hwif->config_data = ports->ctl;
-        hwif->mmio = 1;
 }
 
 /**
diff --git a/drivers/ide/pci/siimage.c b/drivers/ide/pci/siimage.c
index 0006b9e58567..b75e9bb390a7 100644
--- a/drivers/ide/pci/siimage.c
+++ b/drivers/ide/pci/siimage.c
@@ -94,7 +94,7 @@ static unsigned long siimage_selreg(ide_hwif_t *hwif, int r)
         unsigned long base = (unsigned long)hwif->hwif_data;
 
         base += 0xA0 + r;
-        if (hwif->mmio)
+        if (hwif->host_flags & IDE_HFLAG_MMIO)
                 base += hwif->channel << 6;
         else
                 base += hwif->channel << 4;
@@ -117,7 +117,7 @@ static inline unsigned long siimage_seldev(ide_drive_t *drive, int r)
         unsigned long base      = (unsigned long)hwif->hwif_data;
 
         base += 0xA0 + r;
-        if (hwif->mmio)
+        if (hwif->host_flags & IDE_HFLAG_MMIO)
                 base += hwif->channel << 6;
         else
                 base += hwif->channel << 4;
@@ -190,7 +190,9 @@ static u8 sil_pata_udma_filter(ide_drive_t *drive)
         unsigned long base      = (unsigned long)hwif->hwif_data;
         u8 scsc, mask           = 0;
 
-        scsc = sil_ioread8(dev, base + (hwif->mmio ? 0x4A : 0x8A));
+        base += (hwif->host_flags & IDE_HFLAG_MMIO) ? 0x4A : 0x8A;
+
+        scsc = sil_ioread8(dev, base);
 
         switch (scsc & 0x30) {
         case 0x10:      /* 133 */
@@ -238,8 +240,9 @@ static void sil_set_pio_mode(ide_drive_t *drive, u8 pio)
         unsigned long tfaddr    = siimage_selreg(hwif,  0x02);
         unsigned long base      = (unsigned long)hwif->hwif_data;
         u8 tf_pio               = pio;
-        u8 addr_mask            = hwif->channel ? (hwif->mmio ? 0xF4 : 0x84)
-                                                : (hwif->mmio ? 0xB4 : 0x80);
+        u8 mmio                 = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
+        u8 addr_mask            = hwif->channel ? (mmio ? 0xF4 : 0x84)
+                                                : (mmio ? 0xB4 : 0x80);
         u8 mode                 = 0;
         u8 unit                 = drive->select.b.unit;
 
@@ -290,13 +293,13 @@ static void sil_set_dma_mode(ide_drive_t *drive, const u8 speed)
         u16 ultra = 0, multi    = 0;
         u8 mode = 0, unit       = drive->select.b.unit;
         unsigned long base      = (unsigned long)hwif->hwif_data;
-        u8 scsc = 0, addr_mask  = hwif->channel ?
-                                        (hwif->mmio ? 0xF4 : 0x84) :
-                                        (hwif->mmio ? 0xB4 : 0x80);
+        u8 mmio                 = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
+        u8 scsc = 0, addr_mask  = hwif->channel ? (mmio ? 0xF4 : 0x84)
+                                                : (mmio ? 0xB4 : 0x80);
         unsigned long ma        = siimage_seldev(drive, 0x08);
         unsigned long ua        = siimage_seldev(drive, 0x0C);
 
-        scsc  = sil_ioread8 (dev, base + (hwif->mmio ? 0x4A : 0x8A));
+        scsc  = sil_ioread8 (dev, base + (mmio ? 0x4A : 0x8A));
         mode  = sil_ioread8 (dev, base + addr_mask);
         multi = sil_ioread16(dev, ma);
         ultra = sil_ioread16(dev, ua);
@@ -391,7 +394,7 @@ static int siimage_mmio_dma_test_irq(ide_drive_t *drive)
 
 static int siimage_dma_test_irq(ide_drive_t *drive)
 {
-        if (drive->hwif->mmio)
+        if (drive->hwif->host_flags & IDE_HFLAG_MMIO)
                 return siimage_mmio_dma_test_irq(drive);
         else
                 return siimage_io_dma_test_irq(drive);
@@ -640,8 +643,6 @@ static void __devinit init_mmio_iops_siimage(ide_hwif_t *hwif)
         hwif->irq = dev->irq;
 
         hwif->dma_base = (unsigned long)addr + (ch ? 0x08 : 0x00);
-
-        hwif->mmio = 1;
 }
 
 static int is_dev_seagate_sata(ide_drive_t *drive)
diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c
index 5171601fb255..abcfb1739d4d 100644
--- a/drivers/ide/setup-pci.c
+++ b/drivers/ide/setup-pci.c
@@ -87,7 +87,7 @@ unsigned long ide_pci_dma_base(ide_hwif_t *hwif, const struct ide_port_info *d)
         unsigned long dma_base = 0;
         u8 dma_stat = 0;
 
-        if (hwif->mmio)
+        if (hwif->host_flags & IDE_HFLAG_MMIO)
                 return hwif->dma_base;
 
         if (hwif->mate && hwif->mate->dma_base) {
@@ -374,7 +374,7 @@ int ide_hwif_setup_dma(ide_hwif_t *hwif, const struct ide_port_info *d)
                 if (base == 0 || ide_pci_set_master(dev, d->name) < 0)
                         return -1;
 
-                if (hwif->mmio)
+                if (hwif->host_flags & IDE_HFLAG_MMIO)
                         printk(KERN_INFO "    %s: MMIO-DMA\n", hwif->name);
                 else
                         printk(KERN_INFO "    %s: BM-DMA at 0x%04lx-0x%04lx\n",
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 56d0bc2dffee..b01b102be4de 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -532,7 +532,6 @@ typedef struct hwif_s {
         unsigned        serialized : 1; /* serialized all channel operation */
         unsigned        sharing_irq: 1; /* 1 = sharing irq with another hwif */
         unsigned        sg_mapped  : 1; /* sg_table and sg_nents are ready */
-        unsigned        mmio       : 1; /* host uses MMIO */
 
         struct device           gendev;
         struct device           *portdev;