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ide: move hwif_register() call out of ide_probe_port() 

* Add BUG_ON(hwif->present) at the start of ide_probe_port().

* Move hwif_register() call (along with setting hwif->present) from
  ide_probe_port() to ide_device_add_all().

  As a result the port will be registered with the device tree _after_:
  - probing both devices (if both are present)
  - port reset (if hwif->reset is set)
  - restoring local IRQs state and re-enabling port IRQ

While at it:

* Rename hwif_register() to ide_register_port().

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
hifive-unleashed-5.1
Bartlomiej Zolnierkiewicz 2008-02-01 23:09:36 +01:00
parent e84e7ea7c4
commit a14dc57495
1 changed files with 13 additions and 14 deletions
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27
drivers/ide/ide-probe.c
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@ -613,7 +613,7 @@ static void hwif_release_dev (struct device *dev)
complete(&hwif->gendev_rel_comp);
}
static void hwif_register (ide_hwif_t *hwif)
static void ide_register_port(ide_hwif_t *hwif)
{
int ret;
@ -742,7 +742,9 @@ static int ide_probe_port(ide_hwif_t *hwif)
{
unsigned long flags;
unsigned int irqd;
int unit;
int unit, rc = -ENODEV;
BUG_ON(hwif->present);
if (hwif->noprobe)
return -EACCES;
@ -767,14 +769,8 @@ static int ide_probe_port(ide_hwif_t *hwif)
ide_drive_t *drive = &hwif->drives[unit];
drive->dn = (hwif->channel ? 2 : 0) + unit;
(void) probe_for_drive(drive);
if (drive->present && !hwif->present) {
hwif->present = 1;
if (hwif->chipset != ide_4drives ||
!hwif->mate ||
!hwif->mate->present) {
hwif_register(hwif);
}
}
if (drive->present)
rc = 0;
}
if (hwif->io_ports[IDE_CONTROL_OFFSET] && hwif->reset) {
printk(KERN_WARNING "%s: reset\n", hwif->name);
@ -791,10 +787,7 @@ static int ide_probe_port(ide_hwif_t *hwif)
if (irqd)
enable_irq(irqd);
if (!hwif->present)
return -ENODEV;
return 0;
return rc;
}
static void ide_port_tune_devices(ide_hwif_t *hwif)
@ -1319,6 +1312,12 @@ int ide_device_add_all(u8 *idx)
continue;
}
hwif->present = 1;
if (hwif->chipset != ide_4drives || !hwif->mate ||
!hwif->mate->present)
ide_register_port(hwif);
ide_port_tune_devices(hwif);
}