ide-acpi: init ACPI handles early for devices

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>

diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c
index 0ac5c78..a3bebba 100644 (file)
--- a/drivers/ide/ide-acpi.c
+++ b/drivers/ide/ide-acpi.c
@@ -202,40 +202,6 @@ static acpi_handle ide_acpi_hwif_get_handle(ide_hwif_t *hwif)
 }
 
 /**
- * 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
  * @gtf_length: number of bytes of _GTF data returned at @gtf_address
@@ -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
         */