ide: add struct ide_port_ops (take 2)

* Move hooks for port/host specific methods from ide_hwif_t to
  'struct ide_port_ops'.

* Add 'const struct ide_port_ops *port_ops' to 'struct ide_port_info'
  and ide_hwif_t.

* Update host drivers and core code accordingly.

While at it:

* Rename ata66_*() cable detect functions to *_cable_detect() to match
  the standard naming. (Suggested by Sergei Shtylyov)

v2:
* Fix build for bast-ide. (Noticed by Andrew Morton)

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

2 files changed, 22 insertions, 10 deletions

diff --git a/drivers/ide/ppc/mpc8xx.c b/drivers/ide/ppc/mpc8xx.c
index 467656f06ccc..0fd98489d587 100644
--- a/drivers/ide/ppc/mpc8xx.c
+++ b/drivers/ide/ppc/mpc8xx.c
@@ -442,6 +442,10 @@ static void m8xx_ide_set_pio_mode(ide_drive_t *drive, const u8 pio)
 #endif /* defined(CONFIG_IDE_8xx_PCCARD) || defined(CONFIG_IDE_8xx_PCMCIA */
 }
 
+static const struct ide_port_ops m8xx_port_ops = {
+        .set_pio_mode           = m8xx_ide_set_pio_mode,
+};
+
 static void
 ide_interrupt_ack (void *dev)
 {
@@ -812,7 +816,7 @@ static int __init mpc8xx_ide_probe(void)
                 ide_init_port_hw(hwif, &hw);
                 hwif->mmio = 1;
                 hwif->pio_mask = ATA_PIO4;
-                hwif->set_pio_mode = m8xx_ide_set_pio_mode;
+                hwif->port_ops = &m8xx_port_ops;
 
                 idx[0] = 0;
         }
@@ -824,7 +828,7 @@ static int __init mpc8xx_ide_probe(void)
                 ide_init_port_hw(mate, &hw);
                 mate->mmio = 1;
                 mate->pio_mask = ATA_PIO4;
-                mate->set_pio_mode = m8xx_ide_set_pio_mode;
+                mate->port_ops = &m8xx_port_ops;
 
                 idx[1] = 1;
         }
diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c
index 177961edc430..3277bf2d66a5 100644
--- a/drivers/ide/ppc/pmac.c
+++ b/drivers/ide/ppc/pmac.c
@@ -918,8 +918,21 @@ pmac_ide_do_resume(ide_hwif_t *hwif)
         return 0;
 }
 
+static const struct ide_port_ops pmac_ide_ata6_port_ops = {
+        .set_pio_mode           = pmac_ide_set_pio_mode,
+        .set_dma_mode           = pmac_ide_set_dma_mode,
+        .selectproc             = pmac_ide_kauai_selectproc,
+};
+
+static const struct ide_port_ops pmac_ide_port_ops = {
+        .set_pio_mode           = pmac_ide_set_pio_mode,
+        .set_dma_mode           = pmac_ide_set_dma_mode,
+        .selectproc             = pmac_ide_selectproc,
+};
+
 static const struct ide_port_info pmac_port_info = {
         .chipset                = ide_pmac,
+        .port_ops               = &pmac_ide_port_ops,
         .host_flags             = IDE_HFLAG_SET_PIO_MODE_KEEP_DMA |
                                   IDE_HFLAG_POST_SET_MODE |
                                   IDE_HFLAG_NO_DMA | /* no SFF-style DMA */
@@ -947,12 +960,15 @@ pmac_ide_setup_device(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif, hw_regs_t *hw)
         pmif->broken_dma = pmif->broken_dma_warn = 0;
         if (of_device_is_compatible(np, "shasta-ata")) {
                 pmif->kind = controller_sh_ata6;
+                d.port_ops = &pmac_ide_ata6_port_ops;
                 d.udma_mask = ATA_UDMA6;
         } else if (of_device_is_compatible(np, "kauai-ata")) {
                 pmif->kind = controller_un_ata6;
+                d.port_ops = &pmac_ide_ata6_port_ops;
                 d.udma_mask = ATA_UDMA5;
         } else if (of_device_is_compatible(np, "K2-UATA")) {
                 pmif->kind = controller_k2_ata6;
+                d.port_ops = &pmac_ide_ata6_port_ops;
                 d.udma_mask = ATA_UDMA5;
         } else if (of_device_is_compatible(np, "keylargo-ata")) {
                 if (strcmp(np->name, "ata-4") == 0) {
@@ -1035,14 +1051,6 @@ pmac_ide_setup_device(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif, hw_regs_t *hw)
         ide_init_port_hw(hwif, hw);
         hwif->noprobe = pmif->mediabay;
         hwif->cbl = pmif->cable_80 ? ATA_CBL_PATA80 : ATA_CBL_PATA40;
-        hwif->set_pio_mode = pmac_ide_set_pio_mode;
-        if (pmif->kind == controller_un_ata6
-            || pmif->kind == controller_k2_ata6
-            || pmif->kind == controller_sh_ata6)
-                hwif->selectproc = pmac_ide_kauai_selectproc;
-        else
-                hwif->selectproc = pmac_ide_selectproc;
-        hwif->set_dma_mode = pmac_ide_set_dma_mode;
 
         printk(KERN_INFO "ide%d: Found Apple %s controller, bus ID %d%s, irq %d\n",
                hwif->index, model_name[pmif->kind], pmif->aapl_bus_id,