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>
diff --git a/drivers/ide/legacy/ide-4drives.c b/drivers/ide/legacy/ide-4drives.c
index 6310dc5..5935153 100644
--- a/drivers/ide/legacy/ide-4drives.c
+++ b/drivers/ide/legacy/ide-4drives.c
@@ -28,10 +28,9 @@
static int __init ide_4drives_init(void)
{
- ide_hwif_t *hwif, *mate;
+ struct ide_host *host;
unsigned long base = 0x1f0, ctl = 0x3f6;
- hw_regs_t hw, *hws[] = { NULL, NULL, NULL, NULL };
- u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
+ hw_regs_t hw, *hws[] = { &hw, &hw, NULL, NULL };
if (probe_4drives == 0)
return -ENODEV;
@@ -55,21 +54,9 @@
hw.irq = 14;
hw.chipset = ide_4drives;
- hwif = ide_find_port();
- if (hwif) {
- hwif->chipset = ide_4drives;
-
- hws[0] = &hw;
- idx[0] = hwif->index;
- }
-
- mate = ide_find_port();
- if (mate) {
- hws[1] = &hw;
- idx[1] = mate->index;
- }
-
- ide_device_add(idx, &ide_4drives_port_info, hws);
+ host = ide_host_alloc(&ide_4drives_port_info, hws);
+ if (host)
+ ide_host_register(host, &ide_4drives_port_info, hws);
return 0;
}