Merge branch 'acpi-enumeration'

* acpi-enumeration:
  ACPI / scan: use platform bus type by default for _HID enumeration
  ACPI / scan: always register ACPI LPSS scan handler
  ACPI / scan: always register memory hotplug scan handler
  ACPI / scan: always register container scan handler
  ACPI / scan: Change the meaning of missing .attach() in scan handlers
  ACPI / scan: introduce platform_id device PNP type flag
  ACPI / scan: drop unsupported serial IDs from PNP ACPI scan handler ID list
  ACPI / scan: drop IDs that do not comply with the ACPI PNP ID rule
  ACPI / PNP: use device ID list for PNPACPI device enumeration
  ACPI / scan: .match() callback for ACPI scan handlers

1 files changed, 8 insertions, 36 deletions

diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
index 3bb89def2292..2bf9082f7523 100644
--- a/drivers/acpi/acpi_platform.c
+++ b/drivers/acpi/acpi_platform.c
@@ -22,25 +22,11 @@
 
 ACPI_MODULE_NAME("platform");
 
-/*
- * The following ACPI IDs are known to be suitable for representing as
- * platform devices.
- */
-static const struct acpi_device_id acpi_platform_device_ids[] = {
-
-	{ "PNP0D40" },
-	{ "VPC2004" },
-	{ "BCM4752" },
-	{ "LNV4752" },
-	{ "BCM2E1A" },
-	{ "BCM2E39" },
-	{ "BCM2E3D" },
-
-	/* Intel Smart Sound Technology */
-	{ "INT33C8" },
-	{ "80860F28" },
-
-	{ }
+static const struct acpi_device_id forbidden_id_list[] = {
+	{"PNP0000", 0},	/* PIC */
+	{"PNP0100", 0},	/* Timer */
+	{"PNP0200", 0},	/* AT DMA Controller */
+	{"", 0},
 };
 
 /**
@@ -67,6 +53,9 @@ struct platform_device *acpi_create_platform_device(struct acpi_device *adev)
 	if (adev->physical_node_count)
 		return NULL;
 
+	if (!acpi_match_device_ids(adev, forbidden_id_list))
+		return ERR_PTR(-EINVAL);
+
 	INIT_LIST_HEAD(&resource_list);
 	count = acpi_dev_get_resources(adev, &resource_list, NULL, NULL);
 	if (count < 0) {
@@ -124,20 +113,3 @@ struct platform_device *acpi_create_platform_device(struct acpi_device *adev)
 	kfree(resources);
 	return pdev;
 }
-
-static int acpi_platform_attach(struct acpi_device *adev,
-				const struct acpi_device_id *id)
-{
-	acpi_create_platform_device(adev);
-	return 1;
-}
-
-static struct acpi_scan_handler platform_handler = {
-	.ids = acpi_platform_device_ids,
-	.attach = acpi_platform_attach,
-};
-
-void __init acpi_platform_init(void)
-{
-	acpi_scan_add_handler(&platform_handler);
-}