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

9 files changed, 547 insertions, 83 deletions

diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index bce34af..ea55e01 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -39,8 +39,9 @@ acpi-y				+= processor_core.o
 acpi-y				+= ec.o
 acpi-$(CONFIG_ACPI_DOCK)	+= dock.o
 acpi-y				+= pci_root.o pci_link.o pci_irq.o
-acpi-$(CONFIG_X86_INTEL_LPSS)	+= acpi_lpss.o
+acpi-y				+= acpi_lpss.o
 acpi-y				+= acpi_platform.o
+acpi-y				+= acpi_pnp.o
 acpi-y				+= power.o
 acpi-y				+= event.o
 acpi-y				+= sysfs.o
@@ -63,9 +64,9 @@ obj-$(CONFIG_ACPI_FAN)		+= fan.o
 obj-$(CONFIG_ACPI_VIDEO)	+= video.o
 obj-$(CONFIG_ACPI_PCI_SLOT)	+= pci_slot.o
 obj-$(CONFIG_ACPI_PROCESSOR)	+= processor.o
-obj-$(CONFIG_ACPI_CONTAINER)	+= container.o
+obj-y				+= container.o
 obj-$(CONFIG_ACPI_THERMAL)	+= thermal.o
-obj-$(CONFIG_ACPI_HOTPLUG_MEMORY) += acpi_memhotplug.o
+obj-y				+= acpi_memhotplug.o
 obj-$(CONFIG_ACPI_BATTERY)	+= battery.o
 obj-$(CONFIG_ACPI_SBS)		+= sbshc.o
 obj-$(CONFIG_ACPI_SBS)		+= sbs.o
diff --git a/drivers/acpi/acpi_cmos_rtc.c b/drivers/acpi/acpi_cmos_rtc.c
index 961b45d..2da8660 100644
--- a/drivers/acpi/acpi_cmos_rtc.c
+++ b/drivers/acpi/acpi_cmos_rtc.c
@@ -68,7 +68,7 @@ static int acpi_install_cmos_rtc_space_handler(struct acpi_device *adev,
 		return -ENODEV;
 	}
 
-	return 0;
+	return 1;
 }
 
 static void acpi_remove_cmos_rtc_space_handler(struct acpi_device *adev)
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index db362a9..51069b2 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -25,6 +25,10 @@
 
 ACPI_MODULE_NAME("acpi_lpss");
 
+#ifdef CONFIG_X86_INTEL_LPSS
+
+#define LPSS_ADDR(desc) ((unsigned long)&desc)
+
 #define LPSS_CLK_SIZE	0x04
 #define LPSS_LTR_SIZE	0x18
 
@@ -169,40 +173,48 @@ static struct lpss_device_desc byt_i2c_dev_desc = {
 	.shared_clock = &i2c_clock,
 };
 
+#else
+
+#define LPSS_ADDR(desc) (0UL)
+
+#endif /* CONFIG_X86_INTEL_LPSS */
+
 static const struct acpi_device_id acpi_lpss_device_ids[] = {
 	/* Generic LPSS devices */
-	{ "INTL9C60", (unsigned long)&lpss_dma_desc },
+	{ "INTL9C60", LPSS_ADDR(lpss_dma_desc) },
 
 	/* Lynxpoint LPSS devices */
-	{ "INT33C0", (unsigned long)&lpt_dev_desc },
-	{ "INT33C1", (unsigned long)&lpt_dev_desc },
-	{ "INT33C2", (unsigned long)&lpt_i2c_dev_desc },
-	{ "INT33C3", (unsigned long)&lpt_i2c_dev_desc },
-	{ "INT33C4", (unsigned long)&lpt_uart_dev_desc },
-	{ "INT33C5", (unsigned long)&lpt_uart_dev_desc },
-	{ "INT33C6", (unsigned long)&lpt_sdio_dev_desc },
+	{ "INT33C0", LPSS_ADDR(lpt_dev_desc) },
+	{ "INT33C1", LPSS_ADDR(lpt_dev_desc) },
+	{ "INT33C2", LPSS_ADDR(lpt_i2c_dev_desc) },
+	{ "INT33C3", LPSS_ADDR(lpt_i2c_dev_desc) },
+	{ "INT33C4", LPSS_ADDR(lpt_uart_dev_desc) },
+	{ "INT33C5", LPSS_ADDR(lpt_uart_dev_desc) },
+	{ "INT33C6", LPSS_ADDR(lpt_sdio_dev_desc) },
 	{ "INT33C7", },
 
 	/* BayTrail LPSS devices */
-	{ "80860F09", (unsigned long)&byt_pwm_dev_desc },
-	{ "80860F0A", (unsigned long)&byt_uart_dev_desc },
-	{ "80860F0E", (unsigned long)&byt_spi_dev_desc },
-	{ "80860F14", (unsigned long)&byt_sdio_dev_desc },
-	{ "80860F41", (unsigned long)&byt_i2c_dev_desc },
+	{ "80860F09", LPSS_ADDR(byt_pwm_dev_desc) },
+	{ "80860F0A", LPSS_ADDR(byt_uart_dev_desc) },
+	{ "80860F0E", LPSS_ADDR(byt_spi_dev_desc) },
+	{ "80860F14", LPSS_ADDR(byt_sdio_dev_desc) },
+	{ "80860F41", LPSS_ADDR(byt_i2c_dev_desc) },
 	{ "INT33B2", },
 
-	{ "INT3430", (unsigned long)&lpt_dev_desc },
-	{ "INT3431", (unsigned long)&lpt_dev_desc },
-	{ "INT3432", (unsigned long)&lpt_i2c_dev_desc },
-	{ "INT3433", (unsigned long)&lpt_i2c_dev_desc },
-	{ "INT3434", (unsigned long)&lpt_uart_dev_desc },
-	{ "INT3435", (unsigned long)&lpt_uart_dev_desc },
-	{ "INT3436", (unsigned long)&lpt_sdio_dev_desc },
+	{ "INT3430", LPSS_ADDR(lpt_dev_desc) },
+	{ "INT3431", LPSS_ADDR(lpt_dev_desc) },
+	{ "INT3432", LPSS_ADDR(lpt_i2c_dev_desc) },
+	{ "INT3433", LPSS_ADDR(lpt_i2c_dev_desc) },
+	{ "INT3434", LPSS_ADDR(lpt_uart_dev_desc) },
+	{ "INT3435", LPSS_ADDR(lpt_uart_dev_desc) },
+	{ "INT3436", LPSS_ADDR(lpt_sdio_dev_desc) },
 	{ "INT3437", },
 
 	{ }
 };
 
+#ifdef CONFIG_X86_INTEL_LPSS
+
 static int is_memory(struct acpi_resource *res, void *not_used)
 {
 	struct resource r;
@@ -695,3 +707,16 @@ void __init acpi_lpss_init(void)
 		acpi_scan_add_handler(&lpss_handler);
 	}
 }
+
+#else
+
+static struct acpi_scan_handler lpss_handler = {
+	.ids = acpi_lpss_device_ids,
+};
+
+void __init acpi_lpss_init(void)
+{
+	acpi_scan_add_handler(&lpss_handler);
+}
+
+#endif /* CONFIG_X86_INTEL_LPSS */
diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index b67be85..23e2319 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -44,6 +44,13 @@
 
 ACPI_MODULE_NAME("acpi_memhotplug");
 
+static const struct acpi_device_id memory_device_ids[] = {
+	{ACPI_MEMORY_DEVICE_HID, 0},
+	{"", 0},
+};
+
+#ifdef CONFIG_ACPI_HOTPLUG_MEMORY
+
 /* Memory Device States */
 #define MEMORY_INVALID_STATE	0
 #define MEMORY_POWER_ON_STATE	1
@@ -53,11 +60,6 @@ static int acpi_memory_device_add(struct acpi_device *device,
 				  const struct acpi_device_id *not_used);
 static void acpi_memory_device_remove(struct acpi_device *device);
 
-static const struct acpi_device_id memory_device_ids[] = {
-	{ACPI_MEMORY_DEVICE_HID, 0},
-	{"", 0},
-};
-
 static struct acpi_scan_handler memory_device_handler = {
 	.ids = memory_device_ids,
 	.attach = acpi_memory_device_add,
@@ -364,9 +366,11 @@ static bool __initdata acpi_no_memhotplug;
 
 void __init acpi_memory_hotplug_init(void)
 {
-	if (acpi_no_memhotplug)
+	if (acpi_no_memhotplug) {
+		memory_device_handler.attach = NULL;
+		acpi_scan_add_handler(&memory_device_handler);
 		return;
-
+	}
 	acpi_scan_add_handler_with_hotplug(&memory_device_handler, "memory");
 }
 
@@ -376,3 +380,16 @@ static int __init disable_acpi_memory_hotplug(char *str)
 	return 1;
 }
 __setup("acpi_no_memhotplug", disable_acpi_memory_hotplug);
+
+#else
+
+static struct acpi_scan_handler memory_device_handler = {
+	.ids = memory_device_ids,
+};
+
+void __init acpi_memory_hotplug_init(void)
+{
+	acpi_scan_add_handler(&memory_device_handler);
+}
+
+#endif /* CONFIG_ACPI_HOTPLUG_MEMORY */
diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
index 3bb89de..2bf9082 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);
-}
diff --git a/drivers/acpi/acpi_pnp.c b/drivers/acpi/acpi_pnp.c
new file mode 100644
index 0000000..6703c1f
--- /dev/null
+++ b/drivers/acpi/acpi_pnp.c
@@ -0,0 +1,395 @@
+/*
+ * ACPI support for PNP bus type
+ *
+ * Copyright (C) 2014, Intel Corporation
+ * Authors: Zhang Rui <rui.zhang@intel.com>
+ *          Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/acpi.h>
+#include <linux/module.h>
+
+static const struct acpi_device_id acpi_pnp_device_ids[] = {
+	/* pata_isapnp */
+	{"PNP0600"},		/* Generic ESDI/IDE/ATA compatible hard disk controller */
+	/* floppy */
+	{"PNP0700"},
+	/* ipmi_si */
+	{"IPI0001"},
+	/* tpm_inf_pnp */
+	{"IFX0101"},		/* Infineon TPMs */
+	{"IFX0102"},		/* Infineon TPMs */
+	/*tpm_tis */
+	{"PNP0C31"},		/* TPM */
+	{"ATM1200"},		/* Atmel */
+	{"IFX0102"},		/* Infineon */
+	{"BCM0101"},		/* Broadcom */
+	{"BCM0102"},		/* Broadcom */
+	{"NSC1200"},		/* National */
+	{"ICO0102"},		/* Intel */
+	/* ide   */
+	{"PNP0600"},		/* Generic ESDI/IDE/ATA compatible hard disk controller */
+	/* ns558 */
+	{"ASB16fd"},		/* AdLib NSC16 */
+	{"AZT3001"},		/* AZT1008 */
+	{"CDC0001"},		/* Opl3-SAx */
+	{"CSC0001"},		/* CS4232 */
+	{"CSC000f"},		/* CS4236 */
+	{"CSC0101"},		/* CS4327 */
+	{"CTL7001"},		/* SB16 */
+	{"CTL7002"},		/* AWE64 */
+	{"CTL7005"},		/* Vibra16 */
+	{"ENS2020"},		/* SoundscapeVIVO */
+	{"ESS0001"},		/* ES1869 */
+	{"ESS0005"},		/* ES1878 */
+	{"ESS6880"},		/* ES688 */
+	{"IBM0012"},		/* CS4232 */
+	{"OPT0001"},		/* OPTi Audio16 */
+	{"YMH0006"},		/* Opl3-SA */
+	{"YMH0022"},		/* Opl3-SAx */
+	{"PNPb02f"},		/* Generic */
+	/* i8042 kbd */
+	{"PNP0300"},
+	{"PNP0301"},
+	{"PNP0302"},
+	{"PNP0303"},
+	{"PNP0304"},
+	{"PNP0305"},
+	{"PNP0306"},
+	{"PNP0309"},
+	{"PNP030a"},
+	{"PNP030b"},
+	{"PNP0320"},
+	{"PNP0343"},
+	{"PNP0344"},
+	{"PNP0345"},
+	{"CPQA0D7"},
+	/* i8042 aux */
+	{"AUI0200"},
+	{"FJC6000"},
+	{"FJC6001"},
+	{"PNP0f03"},
+	{"PNP0f0b"},
+	{"PNP0f0e"},
+	{"PNP0f12"},
+	{"PNP0f13"},
+	{"PNP0f19"},
+	{"PNP0f1c"},
+	{"SYN0801"},
+	/* fcpnp */
+	{"AVM0900"},
+	/* radio-cadet */
+	{"MSM0c24"},		/* ADS Cadet AM/FM Radio Card */
+	/* radio-gemtek */
+	{"ADS7183"},		/* AOpen FX-3D/Pro Radio */
+	/* radio-sf16fmr2 */
+	{"MFRad13"},		/* tuner subdevice of SF16-FMD2 */
+	/* ene_ir */
+	{"ENE0100"},
+	{"ENE0200"},
+	{"ENE0201"},
+	{"ENE0202"},
+	/* fintek-cir */
+	{"FIT0002"},		/* CIR */
+	/* ite-cir */
+	{"ITE8704"},		/* Default model */
+	{"ITE8713"},		/* CIR found in EEEBox 1501U */
+	{"ITE8708"},		/* Bridged IT8512 */
+	{"ITE8709"},		/* SRAM-Bridged IT8512 */
+	/* nuvoton-cir */
+	{"WEC0530"},		/* CIR */
+	{"NTN0530"},		/* CIR for new chip's pnp id */
+	/* Winbond CIR */
+	{"WEC1022"},
+	/* wbsd */
+	{"WEC0517"},
+	{"WEC0518"},
+	/* Winbond CIR */
+	{"TCM5090"},		/* 3Com Etherlink III (TP) */
+	{"TCM5091"},		/* 3Com Etherlink III */
+	{"TCM5094"},		/* 3Com Etherlink III (combo) */
+	{"TCM5095"},		/* 3Com Etherlink III (TPO) */
+	{"TCM5098"},		/* 3Com Etherlink III (TPC) */
+	{"PNP80f7"},		/* 3Com Etherlink III compatible */
+	{"PNP80f8"},		/* 3Com Etherlink III compatible */
+	/* nsc-ircc */
+	{"NSC6001"},
+	{"HWPC224"},
+	{"IBM0071"},
+	/* smsc-ircc2 */
+	{"SMCf010"},
+	/* sb1000 */
+	{"GIC1000"},
+	/* parport_pc */
+	{"PNP0400"},		/* Standard LPT Printer Port */
+	{"PNP0401"},		/* ECP Printer Port */
+	/* apple-gmux */
+	{"APP000B"},
+	/* fujitsu-laptop.c */
+	{"FUJ02bf"},
+	{"FUJ02B1"},
+	{"FUJ02E3"},
+	/* system */
+	{"PNP0c02"},		/* General ID for reserving resources */
+	{"PNP0c01"},		/* memory controller */
+	/* rtc_cmos */
+	{"PNP0b00"},
+	{"PNP0b01"},
+	{"PNP0b02"},
+	/* c6xdigio */
+	{"PNP0400"},		/* Standard LPT Printer Port */
+	{"PNP0401"},		/* ECP Printer Port */
+	/* ni_atmio.c */
+	{"NIC1900"},
+	{"NIC2400"},
+	{"NIC2500"},
+	{"NIC2600"},
+	{"NIC2700"},
+	/* serial */
+	{"AAC000F"},		/* Archtek America Corp. Archtek SmartLink Modem 3334BT Plug & Play */
+	{"ADC0001"},		/* Anchor Datacomm BV. SXPro 144 External Data Fax Modem Plug & Play */
+	{"ADC0002"},		/* SXPro 288 External Data Fax Modem Plug & Play */
+	{"AEI0250"},		/* PROLiNK 1456VH ISA PnP K56flex Fax Modem */
+	{"AEI1240"},		/* Actiontec ISA PNP 56K X2 Fax Modem */
+	{"AKY1021"},		/* Rockwell 56K ACF II Fax+Data+Voice Modem */
+	{"AZT4001"},		/* AZT3005 PnP SOUND DEVICE */
+	{"BDP3336"},		/* Best Data Products Inc. Smart One 336F PnP Modem */
+	{"BRI0A49"},		/* Boca Complete Ofc Communicator 14.4 Data-FAX */
+	{"BRI1400"},		/* Boca Research 33,600 ACF Modem */
+	{"BRI3400"},		/* Boca 33.6 Kbps Internal FD34FSVD */
+	{"BRI0A49"},		/* Boca 33.6 Kbps Internal FD34FSVD */
+	{"BDP3336"},		/* Best Data Products Inc. Smart One 336F PnP Modem */
+	{"CPI4050"},		/* Computer Peripherals Inc. EuroViVa CommCenter-33.6 SP PnP */
+	{"CTL3001"},		/* Creative Labs Phone Blaster 28.8 DSVD PnP Voice */
+	{"CTL3011"},		/* Creative Labs Modem Blaster 28.8 DSVD PnP Voice */
+	{"DAV0336"},		/* Davicom ISA 33.6K Modem */
+	{"DMB1032"},		/* Creative Modem Blaster Flash56 DI5601-1 */
+	{"DMB2001"},		/* Creative Modem Blaster V.90 DI5660 */
+	{"ETT0002"},		/* E-Tech CyberBULLET PC56RVP */
+	{"FUJ0202"},		/* Fujitsu 33600 PnP-I2 R Plug & Play */
+	{"FUJ0205"},		/* Fujitsu FMV-FX431 Plug & Play */
+	{"FUJ0206"},		/* Fujitsu 33600 PnP-I4 R Plug & Play */
+	{"FUJ0209"},		/* Fujitsu Fax Voice 33600 PNP-I5 R Plug & Play */
+	{"GVC000F"},		/* Archtek SmartLink Modem 3334BT Plug & Play */
+	{"GVC0303"},		/* Archtek SmartLink Modem 3334BRV 33.6K Data Fax Voice */
+	{"HAY0001"},		/* Hayes Optima 288 V.34-V.FC + FAX + Voice Plug & Play */
+	{"HAY000C"},		/* Hayes Optima 336 V.34 + FAX + Voice PnP */
+	{"HAY000D"},		/* Hayes Optima 336B V.34 + FAX + Voice PnP */
+	{"HAY5670"},		/* Hayes Accura 56K Ext Fax Modem PnP */
+	{"HAY5674"},		/* Hayes Accura 56K Ext Fax Modem PnP */
+	{"HAY5675"},		/* Hayes Accura 56K Fax Modem PnP */
+	{"HAYF000"},		/* Hayes 288, V.34 + FAX */
+	{"HAYF001"},		/* Hayes Optima 288 V.34 + FAX + Voice, Plug & Play */
+	{"IBM0033"},		/* IBM Thinkpad 701 Internal Modem Voice */
+	{"PNP4972"},		/* Intermec CV60 touchscreen port */
+	{"IXDC801"},		/* Intertex 28k8 33k6 Voice EXT PnP */
+	{"IXDC901"},		/* Intertex 33k6 56k Voice EXT PnP */
+	{"IXDD801"},		/* Intertex 28k8 33k6 Voice SP EXT PnP */
+	{"IXDD901"},		/* Intertex 33k6 56k Voice SP EXT PnP */
+	{"IXDF401"},		/* Intertex 28k8 33k6 Voice SP INT PnP */
+	{"IXDF801"},		/* Intertex 28k8 33k6 Voice SP EXT PnP */
+	{"IXDF901"},		/* Intertex 33k6 56k Voice SP EXT PnP */
+	{"KOR4522"},		/* KORTEX 28800 Externe PnP */
+	{"KORF661"},		/* KXPro 33.6 Vocal ASVD PnP */
+	{"LAS4040"},		/* LASAT Internet 33600 PnP */
+	{"LAS4540"},		/* Lasat Safire 560 PnP */
+	{"LAS5440"},		/* Lasat Safire 336  PnP */
+	{"MNP0281"},		/* Microcom TravelPorte FAST V.34 Plug & Play */
+	{"MNP0336"},		/* Microcom DeskPorte V.34 FAST or FAST+ Plug & Play */
+	{"MNP0339"},		/* Microcom DeskPorte FAST EP 28.8 Plug & Play */
+	{"MNP0342"},		/* Microcom DeskPorte 28.8P Plug & Play */
+	{"MNP0500"},		/* Microcom DeskPorte FAST ES 28.8 Plug & Play */
+	{"MNP0501"},		/* Microcom DeskPorte FAST ES 28.8 Plug & Play */
+	{"MNP0502"},		/* Microcom DeskPorte 28.8S Internal Plug & Play */
+	{"MOT1105"},		/* Motorola BitSURFR Plug & Play */
+	{"MOT1111"},		/* Motorola TA210 Plug & Play */
+	{"MOT1114"},		/* Motorola HMTA 200 (ISDN) Plug & Play */
+	{"MOT1115"},		/* Motorola BitSURFR Plug & Play */
+	{"MOT1190"},		/* Motorola Lifestyle 28.8 Internal */
+	{"MOT1501"},		/* Motorola V.3400 Plug & Play */
+	{"MOT1502"},		/* Motorola Lifestyle 28.8 V.34 Plug & Play */
+	{"MOT1505"},		/* Motorola Power 28.8 V.34 Plug & Play */
+	{"MOT1509"},		/* Motorola ModemSURFR External 28.8 Plug & Play */
+	{"MOT150A"},		/* Motorola Premier 33.6 Desktop Plug & Play */
+	{"MOT150F"},		/* Motorola VoiceSURFR 56K External PnP */
+	{"MOT1510"},		/* Motorola ModemSURFR 56K External PnP */
+	{"MOT1550"},		/* Motorola ModemSURFR 56K Internal PnP */
+	{"MOT1560"},		/* Motorola ModemSURFR Internal 28.8 Plug & Play */
+	{"MOT1580"},		/* Motorola Premier 33.6 Internal Plug & Play */
+	{"MOT15B0"},		/* Motorola OnlineSURFR 28.8 Internal Plug & Play */
+	{"MOT15F0"},		/* Motorola VoiceSURFR 56K Internal PnP */
+	{"MVX00A1"},		/*  Deskline K56 Phone System PnP */
+	{"MVX00F2"},		/* PC Rider K56 Phone System PnP */
+	{"nEC8241"},		/* NEC 98NOTE SPEAKER PHONE FAX MODEM(33600bps) */
+	{"PMC2430"},		/* Pace 56 Voice Internal Plug & Play Modem */
+	{"PNP0500"},		/* Generic standard PC COM port     */
+	{"PNP0501"},		/* Generic 16550A-compatible COM port */
+	{"PNPC000"},		/* Compaq 14400 Modem */
+	{"PNPC001"},		/* Compaq 2400/9600 Modem */
+	{"PNPC031"},		/* Dial-Up Networking Serial Cable between 2 PCs */
+	{"PNPC032"},		/* Dial-Up Networking Parallel Cable between 2 PCs */
+	{"PNPC100"},		/* Standard 9600 bps Modem */
+	{"PNPC101"},		/* Standard 14400 bps Modem */
+	{"PNPC102"},		/*  Standard 28800 bps Modem */
+	{"PNPC103"},		/*  Standard Modem */
+	{"PNPC104"},		/*  Standard 9600 bps Modem */
+	{"PNPC105"},		/*  Standard 14400 bps Modem */
+	{"PNPC106"},		/*  Standard 28800 bps Modem */
+	{"PNPC107"},		/*  Standard Modem */
+	{"PNPC108"},		/* Standard 9600 bps Modem */
+	{"PNPC109"},		/* Standard 14400 bps Modem */
+	{"PNPC10A"},		/* Standard 28800 bps Modem */
+	{"PNPC10B"},		/* Standard Modem */
+	{"PNPC10C"},		/* Standard 9600 bps Modem */
+	{"PNPC10D"},		/* Standard 14400 bps Modem */
+	{"PNPC10E"},		/* Standard 28800 bps Modem */
+	{"PNPC10F"},		/* Standard Modem */
+	{"PNP2000"},		/* Standard PCMCIA Card Modem */
+	{"ROK0030"},		/* Rockwell 33.6 DPF Internal PnP, Modular Technology 33.6 Internal PnP */
+	{"ROK0100"},		/* KORTEX 14400 Externe PnP */
+	{"ROK4120"},		/* Rockwell 28.8 */
+	{"ROK4920"},		/* Viking 28.8 INTERNAL Fax+Data+Voice PnP */
+	{"RSS00A0"},		/* Rockwell 33.6 DPF External PnP, BT Prologue 33.6 External PnP, Modular Technology 33.6 External PnP */
+	{"RSS0262"},		/* Viking 56K FAX INT */
+	{"RSS0250"},		/* K56 par,VV,Voice,Speakphone,AudioSpan,PnP */
+	{"SUP1310"},		/* SupraExpress 28.8 Data/Fax PnP modem */
+	{"SUP1381"},		/* SupraExpress 336i PnP Voice Modem */
+	{"SUP1421"},		/* SupraExpress 33.6 Data/Fax PnP modem */
+	{"SUP1590"},		/* SupraExpress 33.6 Data/Fax PnP modem */
+	{"SUP1620"},		/* SupraExpress 336i Sp ASVD */
+	{"SUP1760"},		/* SupraExpress 33.6 Data/Fax PnP modem */
+	{"SUP2171"},		/* SupraExpress 56i Sp Intl */
+	{"TEX0011"},		/* Phoebe Micro 33.6 Data Fax 1433VQH Plug & Play */
+	{"UAC000F"},		/* Archtek SmartLink Modem 3334BT Plug & Play */
+	{"USR0000"},		/* 3Com Corp. Gateway Telepath IIvi 33.6 */
+	{"USR0002"},		/* U.S. Robotics Sporster 33.6K Fax INT PnP */
+	{"USR0004"},		/*  Sportster Vi 14.4 PnP FAX Voicemail */
+	{"USR0006"},		/* U.S. Robotics 33.6K Voice INT PnP */
+	{"USR0007"},		/* U.S. Robotics 33.6K Voice EXT PnP */
+	{"USR0009"},		/* U.S. Robotics Courier V.Everything INT PnP */
+	{"USR2002"},		/* U.S. Robotics 33.6K Voice INT PnP */
+	{"USR2070"},		/* U.S. Robotics 56K Voice INT PnP */
+	{"USR2080"},		/* U.S. Robotics 56K Voice EXT PnP */
+	{"USR3031"},		/* U.S. Robotics 56K FAX INT */
+	{"USR3050"},		/* U.S. Robotics 56K FAX INT */
+	{"USR3070"},		/* U.S. Robotics 56K Voice INT PnP */
+	{"USR3080"},		/* U.S. Robotics 56K Voice EXT PnP */
+	{"USR3090"},		/* U.S. Robotics 56K Voice INT PnP */
+	{"USR9100"},		/* U.S. Robotics 56K Message  */
+	{"USR9160"},		/* U.S. Robotics 56K FAX EXT PnP */
+	{"USR9170"},		/* U.S. Robotics 56K FAX INT PnP */
+	{"USR9180"},		/* U.S. Robotics 56K Voice EXT PnP */
+	{"USR9190"},		/* U.S. Robotics 56K Voice INT PnP */
+	{"WACFXXX"},		/* Wacom tablets */
+	{"FPI2002"},		/* Compaq touchscreen */
+	{"FUJ02B2"},		/* Fujitsu Stylistic touchscreens */
+	{"FUJ02B3"},
+	{"FUJ02B4"},		/* Fujitsu Stylistic LT touchscreens */
+	{"FUJ02B6"},		/* Passive Fujitsu Stylistic touchscreens */
+	{"FUJ02B7"},
+	{"FUJ02B8"},
+	{"FUJ02B9"},
+	{"FUJ02BC"},
+	{"FUJ02E5"},		/* Fujitsu Wacom Tablet PC device */
+	{"FUJ02E6"},		/* Fujitsu P-series tablet PC device */
+	{"FUJ02E7"},		/* Fujitsu Wacom 2FGT Tablet PC device */
+	{"FUJ02E9"},		/* Fujitsu Wacom 1FGT Tablet PC device */
+	{"LTS0001"},		/* LG C1 EXPRESS DUAL (C1-PB11A3) touch screen (actually a FUJ02E6 in disguise) */
+	{"WCI0003"},		/* Rockwell's (PORALiNK) 33600 INT PNP */
+	{"WEC1022"},		/* Winbond CIR port, should not be probed. We should keep track of it to prevent the legacy serial driver from probing it */
+	/* scl200wdt */
+	{"NSC0800"},		/* National Semiconductor PC87307/PC97307 watchdog component */
+	/* mpu401 */
+	{"PNPb006"},
+	/* cs423x-pnpbios */
+	{"CSC0100"},
+	{"CSC0000"},
+	{"GIM0100"},		/* Guillemot Turtlebeach something appears to be cs4232 compatible */
+	/* es18xx-pnpbios */
+	{"ESS1869"},
+	{"ESS1879"},
+	/* snd-opl3sa2-pnpbios */
+	{"YMH0021"},
+	{"NMX2210"},		/* Gateway Solo 2500 */
+	{""},
+};
+
+static bool is_hex_digit(char c)
+{
+	return (c >= 0 && c <= '9') || (c >= 'A' && c <= 'F');
+}
+
+static bool matching_id(char *idstr, char *list_id)
+{
+	int i;
+
+	if (memcmp(idstr, list_id, 3))
+		return false;
+
+	for (i = 3; i < 7; i++) {
+		char c = toupper(idstr[i]);
+
+		if (!is_hex_digit(c)
+		    || (list_id[i] != 'X' && c != toupper(list_id[i])))
+			return false;
+	}
+	return true;
+}
+
+static bool acpi_pnp_match(char *idstr, const struct acpi_device_id **matchid)
+{
+	const struct acpi_device_id *devid;
+
+	for (devid = acpi_pnp_device_ids; devid->id[0]; devid++)
+		if (matching_id(idstr, (char *)devid->id)) {
+			if (matchid)
+				*matchid = devid;
+
+			return true;
+		}
+
+	return false;
+}
+
+static int acpi_pnp_attach(struct acpi_device *adev,
+			   const struct acpi_device_id *id)
+{
+	return 1;
+}
+
+static struct acpi_scan_handler acpi_pnp_handler = {
+	.ids = acpi_pnp_device_ids,
+	.match = acpi_pnp_match,
+	.attach = acpi_pnp_attach,
+};
+
+/*
+ * For CMOS RTC devices, the PNP ACPI scan handler does not work, because
+ * there is a CMOS RTC ACPI scan handler installed already, so we need to
+ * check those devices and enumerate them to the PNP bus directly.
+ */
+static int is_cmos_rtc_device(struct acpi_device *adev)
+{
+	struct acpi_device_id ids[] = {
+		{ "PNP0B00" },
+		{ "PNP0B01" },
+		{ "PNP0B02" },
+		{""},
+	};
+	return !acpi_match_device_ids(adev, ids);
+}
+
+bool acpi_is_pnp_device(struct acpi_device *adev)
+{
+	return adev->handler == &acpi_pnp_handler || is_cmos_rtc_device(adev);
+}
+EXPORT_SYMBOL_GPL(acpi_is_pnp_device);
+
+void __init acpi_pnp_init(void)
+{
+	acpi_scan_add_handler(&acpi_pnp_handler);
+}
diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c
index 63119d0..76f7cff 100644
--- a/drivers/acpi/container.c
+++ b/drivers/acpi/container.c
@@ -41,6 +41,8 @@ static const struct acpi_device_id container_device_ids[] = {
 	{"", 0},
 };
 
+#ifdef CONFIG_ACPI_CONTAINER
+
 static int acpi_container_offline(struct container_dev *cdev)
 {
 	struct acpi_device *adev = ACPI_COMPANION(&cdev->dev);
@@ -109,5 +111,18 @@ static struct acpi_scan_handler container_handler = {
 
 void __init acpi_container_init(void)
 {
+	acpi_scan_add_handler(&container_handler);
+}
+
+#else
+
+static struct acpi_scan_handler container_handler = {
+	.ids = container_device_ids,
+};
+
+void __init acpi_container_init(void)
+{
 	acpi_scan_add_handler_with_hotplug(&container_handler, "container");
 }
+
+#endif /* CONFIG_ACPI_CONTAINER */
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index bb7de41..7de5b60 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -30,12 +30,10 @@ void acpi_pci_root_init(void);
 void acpi_pci_link_init(void);
 void acpi_processor_init(void);
 void acpi_platform_init(void);
+void acpi_pnp_init(void);
 int acpi_sysfs_init(void);
-#ifdef CONFIG_ACPI_CONTAINER
 void acpi_container_init(void);
-#else
-static inline void acpi_container_init(void) {}
-#endif
+void acpi_memory_hotplug_init(void);
 #ifdef CONFIG_ACPI_DOCK
 void register_dock_dependent_device(struct acpi_device *adev,
 				    acpi_handle dshandle);
@@ -47,11 +45,6 @@ static inline void register_dock_dependent_device(struct acpi_device *adev,
 static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; }
 static inline void acpi_dock_add(struct acpi_device *adev) {}
 #endif
-#ifdef CONFIG_ACPI_HOTPLUG_MEMORY
-void acpi_memory_hotplug_init(void);
-#else
-static inline void acpi_memory_hotplug_init(void) {}
-#endif
 #ifdef CONFIG_X86
 void acpi_cmos_rtc_init(void);
 #else
@@ -72,11 +65,7 @@ int acpi_debugfs_init(void);
 #else
 static inline void acpi_debugfs_init(void) { return; }
 #endif
-#ifdef CONFIG_X86_INTEL_LPSS
 void acpi_lpss_init(void);
-#else
-static inline void acpi_lpss_init(void) {}
-#endif
 
 acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src);
 bool acpi_queue_hotplug_work(struct work_struct *work);
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 31c99f7..f775fa0 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -84,7 +84,7 @@ EXPORT_SYMBOL_GPL(acpi_initialize_hp_context);
 
 int acpi_scan_add_handler(struct acpi_scan_handler *handler)
 {
-	if (!handler || !handler->attach)
+	if (!handler)
 		return -EINVAL;
 
 	list_add_tail(&handler->list_node, &acpi_scan_handlers_list);
@@ -1797,8 +1797,10 @@ static void acpi_set_pnp_ids(acpi_handle handle, struct acpi_device_pnp *pnp,
 			return;
 		}
 
-		if (info->valid & ACPI_VALID_HID)
+		if (info->valid & ACPI_VALID_HID) {
 			acpi_add_id(pnp, info->hardware_id.string);
+			pnp->type.platform_id = 1;
+		}
 		if (info->valid & ACPI_VALID_CID) {
 			cid_list = &info->compatible_id_list;
 			for (i = 0; i < cid_list->count; i++)
@@ -1977,6 +1979,9 @@ static bool acpi_scan_handler_matching(struct acpi_scan_handler *handler,
 {
 	const struct acpi_device_id *devid;
 
+	if (handler->match)
+		return handler->match(idstr, matchid);
+
 	for (devid = handler->ids; devid->id[0]; devid++)
 		if (!strcmp((char *)devid->id, idstr)) {
 			if (matchid)
@@ -2065,6 +2070,44 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl_not_used,
 	return AE_OK;
 }
 
+static int acpi_check_spi_i2c_slave(struct acpi_resource *ares, void *data)
+{
+	bool *is_spi_i2c_slave_p = data;
+
+	if (ares->type != ACPI_RESOURCE_TYPE_SERIAL_BUS)
+		return 1;
+
+	/*
+	 * devices that are connected to UART still need to be enumerated to
+	 * platform bus
+	 */
+	if (ares->data.common_serial_bus.type != ACPI_RESOURCE_SERIAL_TYPE_UART)
+		*is_spi_i2c_slave_p = true;
+
+	 /* no need to do more checking */
+	return -1;
+}
+
+static void acpi_default_enumeration(struct acpi_device *device)
+{
+	struct list_head resource_list;
+	bool is_spi_i2c_slave = false;
+
+	if (!device->pnp.type.platform_id || device->handler)
+		return;
+
+	/*
+	 * Do not enemerate SPI/I2C slaves as they will be enuerated by their
+	 * respective parents.
+	 */
+	INIT_LIST_HEAD(&resource_list);
+	acpi_dev_get_resources(device, &resource_list, acpi_check_spi_i2c_slave,
+			       &is_spi_i2c_slave);
+	acpi_dev_free_resource_list(&resource_list);
+	if (!is_spi_i2c_slave)
+		acpi_create_platform_device(device);
+}
+
 static int acpi_scan_attach_handler(struct acpi_device *device)
 {
 	struct acpi_hardware_id *hwid;
@@ -2076,6 +2119,10 @@ static int acpi_scan_attach_handler(struct acpi_device *device)
 
 		handler = acpi_scan_match_handler(hwid->id, &devid);
 		if (handler) {
+			if (!handler->attach) {
+				device->pnp.type.platform_id = 0;
+				continue;
+			}
 			device->handler = handler;
 			ret = handler->attach(device, devid);
 			if (ret > 0)
@@ -2086,6 +2133,9 @@ static int acpi_scan_attach_handler(struct acpi_device *device)
 				break;
 		}
 	}
+	if (!ret)
+		acpi_default_enumeration(device);
+
 	return ret;
 }
 
@@ -2245,11 +2295,11 @@ int __init acpi_scan_init(void)
 	acpi_pci_root_init();
 	acpi_pci_link_init();
 	acpi_processor_init();
-	acpi_platform_init();
 	acpi_lpss_init();
 	acpi_cmos_rtc_init();
 	acpi_container_init();
 	acpi_memory_hotplug_init();
+	acpi_pnp_init();
 
 	mutex_lock(&acpi_scan_lock);
 	/*