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ide-acpi: init ACPI handles early for devices

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Init ACPI handles for devices in ide_acpi_port_init_devices()
and remove no longer needed ide_acpi_drive_get_handle().

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2009-03-24 23:22:41 +01:00
parent 94635d3ecf
commit 8cd3c60562
1 changed files with 21 additions and 44 deletions
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65
drivers/ide/ide-acpi.c
View file

@ -201,40 +201,6 @@ static acpi_handle ide_acpi_hwif_get_handle(ide_hwif_t *hwif)
return chan_handle;
}
/**
* ide_acpi_drive_get_handle - Get ACPI object handle for a given drive
* @drive: device to locate
*
* Retrieves the object handle of a given drive. According to the ACPI
* spec the drive is a child of the hwif.
*
* Returns handle on success, 0 on error.
*/
static acpi_handle ide_acpi_drive_get_handle(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
int port;
acpi_handle drive_handle;
if (!hwif->acpidata)
return NULL;
if (!hwif->acpidata->obj_handle)
return NULL;
port = hwif->channel ? drive->dn - 2: drive->dn;
DEBPRINT("ENTER: %s at channel#: %d port#: %d\n",
drive->name, hwif->channel, port);
/* TBD: could also check ACPI object VALID bits */
drive_handle = acpi_get_child(hwif->acpidata->obj_handle, port);
DEBPRINT("drive %s handle 0x%p\n", drive->name, drive_handle);
return drive_handle;
}
/**
* do_drive_get_GTF - get the drive bootup default taskfile settings
* @drive: the drive for which the taskfile settings should be retrieved
@ -290,14 +256,9 @@ static int do_drive_get_GTF(ide_drive_t *drive,
goto out;
}
/* Get this drive's _ADR info. if not already known. */
if (!drive->acpidata->obj_handle) {
drive->acpidata->obj_handle = ide_acpi_drive_get_handle(drive);
if (!drive->acpidata->obj_handle) {
DEBPRINT("No ACPI object found for %s\n",
drive->name);
goto out;
}
DEBPRINT("No ACPI object found for %s\n", drive->name);
goto out;
}
/* Setting up output buffer */
@ -652,9 +613,6 @@ void ide_acpi_set_state(ide_hwif_t *hwif, int on)
acpi_bus_set_power(hwif->acpidata->obj_handle, ACPI_STATE_D0);
ide_port_for_each_dev(i, drive, hwif) {
if (!drive->acpidata->obj_handle)
drive->acpidata->obj_handle = ide_acpi_drive_get_handle(drive);
if (drive->acpidata->obj_handle &&
(drive->dev_flags & IDE_DFLAG_PRESENT)) {
acpi_bus_set_power(drive->acpidata->obj_handle,
@ -708,6 +666,25 @@ void ide_acpi_port_init_devices(ide_hwif_t *hwif)
hwif->devices[0]->acpidata = &hwif->acpidata->master;
hwif->devices[1]->acpidata = &hwif->acpidata->slave;
/* get _ADR info for each device */
ide_port_for_each_dev(i, drive, hwif) {
acpi_handle dev_handle;
if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
continue;
DEBPRINT("ENTER: %s at channel#: %d port#: %d\n",
drive->name, hwif->channel, drive->dn & 1);
/* TBD: could also check ACPI object VALID bits */
dev_handle = acpi_get_child(hwif->acpidata->obj_handle,
drive->dn & 1);
DEBPRINT("drive %s handle 0x%p\n", drive->name, dev_handle);
drive->acpidata->obj_handle = dev_handle;
}
/*
* Send IDENTIFY for each drive
*/