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Commit 8cd3c605 authored by Bartlomiej Zolnierkiewicz's avatar Bartlomiej Zolnierkiewicz
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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: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent 94635d3e

drivers/ide/ide-acpi.c

+21 −44
Original line number Diff line number Diff line
@@ -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
@@ -290,15 +256,10 @@ 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);

		DEBPRINT("No ACPI object found for %s\n", drive->name);

		goto out;

	}

	}



	/* Setting up output buffer */

	output.length = ACPI_ALLOCATE_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

	 */