ide: add struct ide_host (take 3)

* Add struct ide_host which keeps pointers to host's ports.

* Add ide_host_alloc[_all]() and ide_host_remove() helpers.

* Pass 'struct ide_host *host' instead of 'u8 *idx' to
  ide_device_add[_all]() and rename it to ide_host_register[_all]().

* Convert host drivers and core code to use struct ide_host.

* Remove no longer needed ide_find_port().

* Make ide_find_port_slot() static.

* Unexport ide_unregister().

v2:
* Add missing 'struct ide_host *host' to macide.c.

v3:
* Fix build problem in pmac.c (s/ide_alloc_host/ide_host_alloc/)
  (Noticed by Stephen Rothwell).

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

1 files changed, 5 insertions, 5 deletions

diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c
index ee557d10a764..ecd2f28da1ba 100644
--- a/drivers/ide/ppc/pmac.c
+++ b/drivers/ide/ppc/pmac.c
@@ -1039,9 +1039,9 @@ static int __devinit pmac_ide_setup_device(pmac_ide_hwif_t *pmif, hw_regs_t *hw)
 {
         struct device_node *np = pmif->node;
         const int *bidp;
+        struct ide_host *host;
         ide_hwif_t *hwif;
         hw_regs_t *hws[] = { hw, NULL, NULL, NULL };
-        u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
         struct ide_port_info d = pmac_port_info;
 
         pmif->broken_dma = pmif->broken_dma_warn = 0;
@@ -1118,13 +1118,13 @@ static int __devinit pmac_ide_setup_device(pmac_ide_hwif_t *pmif, hw_regs_t *hw)
                          pmif->mdev ? "macio" : "PCI", pmif->aapl_bus_id,
                          pmif->mediabay ? " (mediabay)" : "", hw->irq);
 
-        hwif = ide_find_port_slot(&d);
-        if (hwif == NULL)
+        host = ide_host_alloc(&d, hws);
+        if (host == NULL)
                 return -ENOENT;
 
-        idx[0] = hwif->index;
+        ide_host_register(host, &d, hws);
 
-        ide_device_add(idx, &d, hws);
+        hwif = host->ports[0];
 
         return 0;
 }