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 467656f06cc..0fd98489d58 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 177961edc43..3277bf2d66a 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,