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-rw-r--r--drivers/acpi/Makefile1
-rw-r--r--drivers/acpi/acpi_cmos_rtc.c2
-rw-r--r--drivers/acpi/acpi_pnp.c401
-rw-r--r--drivers/acpi/internal.h1
-rw-r--r--drivers/acpi/scan.c1
-rw-r--r--drivers/pnp/pnpacpi/core.c28
-rw-r--r--include/linux/acpi.h2
7 files changed, 411 insertions, 25 deletions
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index bce34afadcd0..144671a2030f 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -41,6 +41,7 @@ acpi-$(CONFIG_ACPI_DOCK) += dock.o
41acpi-y += pci_root.o pci_link.o pci_irq.o 41acpi-y += pci_root.o pci_link.o pci_irq.o
42acpi-$(CONFIG_X86_INTEL_LPSS) += acpi_lpss.o 42acpi-$(CONFIG_X86_INTEL_LPSS) += acpi_lpss.o
43acpi-y += acpi_platform.o 43acpi-y += acpi_platform.o
44acpi-y += acpi_pnp.o
44acpi-y += power.o 45acpi-y += power.o
45acpi-y += event.o 46acpi-y += event.o
46acpi-y += sysfs.o 47acpi-y += sysfs.o
diff --git a/drivers/acpi/acpi_cmos_rtc.c b/drivers/acpi/acpi_cmos_rtc.c
index 961b45d18a5d..2da8660262e5 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,
68 return -ENODEV; 68 return -ENODEV;
69 } 69 }
70 70
71 return 0; 71 return 1;
72} 72}
73 73
74static void acpi_remove_cmos_rtc_space_handler(struct acpi_device *adev) 74static void acpi_remove_cmos_rtc_space_handler(struct acpi_device *adev)
diff --git a/drivers/acpi/acpi_pnp.c b/drivers/acpi/acpi_pnp.c
new file mode 100644
index 000000000000..567e7fc6330c
--- /dev/null
+++ b/drivers/acpi/acpi_pnp.c
@@ -0,0 +1,401 @@
1/*
2 * ACPI support for PNP bus type
3 *
4 * Copyright (C) 2014, Intel Corporation
5 * Authors: Zhang Rui <rui.zhang@intel.com>
6 * Rafael J. Wysocki <rafael.j.wysocki@intel.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13#include <linux/acpi.h>
14#include <linux/module.h>
15
16static const struct acpi_device_id acpi_pnp_device_ids[] = {
17 /* pata_isapnp */
18 {"PNP0600"}, /* Generic ESDI/IDE/ATA compatible hard disk controller */
19 /* floppy */
20 {"PNP0700"},
21 /* ipmi_si */
22 {"IPI0001"},
23 /* tpm_inf_pnp */
24 {"IFX0101"}, /* Infineon TPMs */
25 {"IFX0102"}, /* Infineon TPMs */
26 /*tpm_tis */
27 {"PNP0C31"}, /* TPM */
28 {"ATM1200"}, /* Atmel */
29 {"IFX0102"}, /* Infineon */
30 {"BCM0101"}, /* Broadcom */
31 {"BCM0102"}, /* Broadcom */
32 {"NSC1200"}, /* National */
33 {"ICO0102"}, /* Intel */
34 /* ide */
35 {"PNP0600"}, /* Generic ESDI/IDE/ATA compatible hard disk controller */
36 /* ns558 */
37 {"@P@0001"}, /* ALS 100 */
38 {"@P@0020"}, /* ALS 200 */
39 {"@P@1001"}, /* ALS 100+ */
40 {"@P@2001"}, /* ALS 120 */
41 {"ASB16fd"}, /* AdLib NSC16 */
42 {"AZT3001"}, /* AZT1008 */
43 {"CDC0001"}, /* Opl3-SAx */
44 {"CSC0001"}, /* CS4232 */
45 {"CSC000f"}, /* CS4236 */
46 {"CSC0101"}, /* CS4327 */
47 {"CTL7001"}, /* SB16 */
48 {"CTL7002"}, /* AWE64 */
49 {"CTL7005"}, /* Vibra16 */
50 {"ENS2020"}, /* SoundscapeVIVO */
51 {"ESS0001"}, /* ES1869 */
52 {"ESS0005"}, /* ES1878 */
53 {"ESS6880"}, /* ES688 */
54 {"IBM0012"}, /* CS4232 */
55 {"OPT0001"}, /* OPTi Audio16 */
56 {"YMH0006"}, /* Opl3-SA */
57 {"YMH0022"}, /* Opl3-SAx */
58 {"PNPb02f"}, /* Generic */
59 /* i8042 kbd */
60 {"PNP0300"},
61 {"PNP0301"},
62 {"PNP0302"},
63 {"PNP0303"},
64 {"PNP0304"},
65 {"PNP0305"},
66 {"PNP0306"},
67 {"PNP0309"},
68 {"PNP030a"},
69 {"PNP030b"},
70 {"PNP0320"},
71 {"PNP0343"},
72 {"PNP0344"},
73 {"PNP0345"},
74 {"CPQA0D7"},
75 /* i8042 aux */
76 {"AUI0200"},
77 {"FJC6000"},
78 {"FJC6001"},
79 {"PNP0f03"},
80 {"PNP0f0b"},
81 {"PNP0f0e"},
82 {"PNP0f12"},
83 {"PNP0f13"},
84 {"PNP0f19"},
85 {"PNP0f1c"},
86 {"SYN0801"},
87 /* fcpnp */
88 {"AVM0900"},
89 /* radio-cadet */
90 {"MSM0c24"}, /* ADS Cadet AM/FM Radio Card */
91 /* radio-gemtek */
92 {"ADS7183"}, /* AOpen FX-3D/Pro Radio */
93 /* radio-sf16fmr2 */
94 {"MFRad13"}, /* tuner subdevice of SF16-FMD2 */
95 /* ene_ir */
96 {"ENE0100"},
97 {"ENE0200"},
98 {"ENE0201"},
99 {"ENE0202"},
100 /* fintek-cir */
101 {"FIT0002"}, /* CIR */
102 /* ite-cir */
103 {"ITE8704"}, /* Default model */
104 {"ITE8713"}, /* CIR found in EEEBox 1501U */
105 {"ITE8708"}, /* Bridged IT8512 */
106 {"ITE8709"}, /* SRAM-Bridged IT8512 */
107 /* nuvoton-cir */
108 {"WEC0530"}, /* CIR */
109 {"NTN0530"}, /* CIR for new chip's pnp id */
110 /* Winbond CIR */
111 {"WEC1022"},
112 /* wbsd */
113 {"WEC0517"},
114 {"WEC0518"},
115 /* Winbond CIR */
116 {"TCM5090"}, /* 3Com Etherlink III (TP) */
117 {"TCM5091"}, /* 3Com Etherlink III */
118 {"TCM5094"}, /* 3Com Etherlink III (combo) */
119 {"TCM5095"}, /* 3Com Etherlink III (TPO) */
120 {"TCM5098"}, /* 3Com Etherlink III (TPC) */
121 {"PNP80f7"}, /* 3Com Etherlink III compatible */
122 {"PNP80f8"}, /* 3Com Etherlink III compatible */
123 /* nsc-ircc */
124 {"NSC6001"},
125 {"HWPC224"},
126 {"IBM0071"},
127 /* smsc-ircc2 */
128 {"SMCf010"},
129 /* sb1000 */
130 {"GIC1000"},
131 /* parport_pc */
132 {"PNP0400"}, /* Standard LPT Printer Port */
133 {"PNP0401"}, /* ECP Printer Port */
134 /* apple-gmux */
135 {"APP000B"},
136 /* fujitsu-laptop.c */
137 {"FUJ02bf"},
138 {"FUJ02B1"},
139 {"FUJ02E3"},
140 /* system */
141 {"PNP0c02"}, /* General ID for reserving resources */
142 {"PNP0c01"}, /* memory controller */
143 /* rtc_cmos */
144 {"PNP0b00"},
145 {"PNP0b01"},
146 {"PNP0b02"},
147 /* c6xdigio */
148 {"PNP0400"}, /* Standard LPT Printer Port */
149 {"PNP0401"}, /* ECP Printer Port */
150 /* ni_atmio.c */
151 {"NIC1900"},
152 {"NIC2400"},
153 {"NIC2500"},
154 {"NIC2600"},
155 {"NIC2700"},
156 /* serial */
157 {"AAC000F"}, /* Archtek America Corp. Archtek SmartLink Modem 3334BT Plug & Play */
158 {"ADC0001"}, /* Anchor Datacomm BV. SXPro 144 External Data Fax Modem Plug & Play */
159 {"ADC0002"}, /* SXPro 288 External Data Fax Modem Plug & Play */
160 {"AEI0250"}, /* PROLiNK 1456VH ISA PnP K56flex Fax Modem */
161 {"AEI1240"}, /* Actiontec ISA PNP 56K X2 Fax Modem */
162 {"AKY1021"}, /* Rockwell 56K ACF II Fax+Data+Voice Modem */
163 {"AZT4001"}, /* AZT3005 PnP SOUND DEVICE */
164 {"BDP3336"}, /* Best Data Products Inc. Smart One 336F PnP Modem */
165 {"BRI0A49"}, /* Boca Complete Ofc Communicator 14.4 Data-FAX */
166 {"BRI1400"}, /* Boca Research 33,600 ACF Modem */
167 {"BRI3400"}, /* Boca 33.6 Kbps Internal FD34FSVD */
168 {"BRI0A49"}, /* Boca 33.6 Kbps Internal FD34FSVD */
169 {"BDP3336"}, /* Best Data Products Inc. Smart One 336F PnP Modem */
170 {"CPI4050"}, /* Computer Peripherals Inc. EuroViVa CommCenter-33.6 SP PnP */
171 {"CTL3001"}, /* Creative Labs Phone Blaster 28.8 DSVD PnP Voice */
172 {"CTL3011"}, /* Creative Labs Modem Blaster 28.8 DSVD PnP Voice */
173 {"DAV0336"}, /* Davicom ISA 33.6K Modem */
174 {"DMB1032"}, /* Creative Modem Blaster Flash56 DI5601-1 */
175 {"DMB2001"}, /* Creative Modem Blaster V.90 DI5660 */
176 {"ETT0002"}, /* E-Tech CyberBULLET PC56RVP */
177 {"FUJ0202"}, /* Fujitsu 33600 PnP-I2 R Plug & Play */
178 {"FUJ0205"}, /* Fujitsu FMV-FX431 Plug & Play */
179 {"FUJ0206"}, /* Fujitsu 33600 PnP-I4 R Plug & Play */
180 {"FUJ0209"}, /* Fujitsu Fax Voice 33600 PNP-I5 R Plug & Play */
181 {"GVC000F"}, /* Archtek SmartLink Modem 3334BT Plug & Play */
182 {"GVC0303"}, /* Archtek SmartLink Modem 3334BRV 33.6K Data Fax Voice */
183 {"HAY0001"}, /* Hayes Optima 288 V.34-V.FC + FAX + Voice Plug & Play */
184 {"HAY000C"}, /* Hayes Optima 336 V.34 + FAX + Voice PnP */
185 {"HAY000D"}, /* Hayes Optima 336B V.34 + FAX + Voice PnP */
186 {"HAY5670"}, /* Hayes Accura 56K Ext Fax Modem PnP */
187 {"HAY5674"}, /* Hayes Accura 56K Ext Fax Modem PnP */
188 {"HAY5675"}, /* Hayes Accura 56K Fax Modem PnP */
189 {"HAYF000"}, /* Hayes 288, V.34 + FAX */
190 {"HAYF001"}, /* Hayes Optima 288 V.34 + FAX + Voice, Plug & Play */
191 {"IBM0033"}, /* IBM Thinkpad 701 Internal Modem Voice */
192 {"PNP4972"}, /* Intermec CV60 touchscreen port */
193 {"IXDC801"}, /* Intertex 28k8 33k6 Voice EXT PnP */
194 {"IXDC901"}, /* Intertex 33k6 56k Voice EXT PnP */
195 {"IXDD801"}, /* Intertex 28k8 33k6 Voice SP EXT PnP */
196 {"IXDD901"}, /* Intertex 33k6 56k Voice SP EXT PnP */
197 {"IXDF401"}, /* Intertex 28k8 33k6 Voice SP INT PnP */
198 {"IXDF801"}, /* Intertex 28k8 33k6 Voice SP EXT PnP */
199 {"IXDF901"}, /* Intertex 33k6 56k Voice SP EXT PnP */
200 {"KOR4522"}, /* KORTEX 28800 Externe PnP */
201 {"KORF661"}, /* KXPro 33.6 Vocal ASVD PnP */
202 {"LAS4040"}, /* LASAT Internet 33600 PnP */
203 {"LAS4540"}, /* Lasat Safire 560 PnP */
204 {"LAS5440"}, /* Lasat Safire 336 PnP */
205 {"MNP0281"}, /* Microcom TravelPorte FAST V.34 Plug & Play */
206 {"MNP0336"}, /* Microcom DeskPorte V.34 FAST or FAST+ Plug & Play */
207 {"MNP0339"}, /* Microcom DeskPorte FAST EP 28.8 Plug & Play */
208 {"MNP0342"}, /* Microcom DeskPorte 28.8P Plug & Play */
209 {"MNP0500"}, /* Microcom DeskPorte FAST ES 28.8 Plug & Play */
210 {"MNP0501"}, /* Microcom DeskPorte FAST ES 28.8 Plug & Play */
211 {"MNP0502"}, /* Microcom DeskPorte 28.8S Internal Plug & Play */
212 {"MOT1105"}, /* Motorola BitSURFR Plug & Play */
213 {"MOT1111"}, /* Motorola TA210 Plug & Play */
214 {"MOT1114"}, /* Motorola HMTA 200 (ISDN) Plug & Play */
215 {"MOT1115"}, /* Motorola BitSURFR Plug & Play */
216 {"MOT1190"}, /* Motorola Lifestyle 28.8 Internal */
217 {"MOT1501"}, /* Motorola V.3400 Plug & Play */
218 {"MOT1502"}, /* Motorola Lifestyle 28.8 V.34 Plug & Play */
219 {"MOT1505"}, /* Motorola Power 28.8 V.34 Plug & Play */
220 {"MOT1509"}, /* Motorola ModemSURFR External 28.8 Plug & Play */
221 {"MOT150A"}, /* Motorola Premier 33.6 Desktop Plug & Play */
222 {"MOT150F"}, /* Motorola VoiceSURFR 56K External PnP */
223 {"MOT1510"}, /* Motorola ModemSURFR 56K External PnP */
224 {"MOT1550"}, /* Motorola ModemSURFR 56K Internal PnP */
225 {"MOT1560"}, /* Motorola ModemSURFR Internal 28.8 Plug & Play */
226 {"MOT1580"}, /* Motorola Premier 33.6 Internal Plug & Play */
227 {"MOT15B0"}, /* Motorola OnlineSURFR 28.8 Internal Plug & Play */
228 {"MOT15F0"}, /* Motorola VoiceSURFR 56K Internal PnP */
229 {"MVX00A1"}, /* Deskline K56 Phone System PnP */
230 {"MVX00F2"}, /* PC Rider K56 Phone System PnP */
231 {"nEC8241"}, /* NEC 98NOTE SPEAKER PHONE FAX MODEM(33600bps) */
232 {"PMC2430"}, /* Pace 56 Voice Internal Plug & Play Modem */
233 {"PNP0500"}, /* Generic standard PC COM port */
234 {"PNP0501"}, /* Generic 16550A-compatible COM port */
235 {"PNPC000"}, /* Compaq 14400 Modem */
236 {"PNPC001"}, /* Compaq 2400/9600 Modem */
237 {"PNPC031"}, /* Dial-Up Networking Serial Cable between 2 PCs */
238 {"PNPC032"}, /* Dial-Up Networking Parallel Cable between 2 PCs */
239 {"PNPC100"}, /* Standard 9600 bps Modem */
240 {"PNPC101"}, /* Standard 14400 bps Modem */
241 {"PNPC102"}, /* Standard 28800 bps Modem */
242 {"PNPC103"}, /* Standard Modem */
243 {"PNPC104"}, /* Standard 9600 bps Modem */
244 {"PNPC105"}, /* Standard 14400 bps Modem */
245 {"PNPC106"}, /* Standard 28800 bps Modem */
246 {"PNPC107"}, /* Standard Modem */
247 {"PNPC108"}, /* Standard 9600 bps Modem */
248 {"PNPC109"}, /* Standard 14400 bps Modem */
249 {"PNPC10A"}, /* Standard 28800 bps Modem */
250 {"PNPC10B"}, /* Standard Modem */
251 {"PNPC10C"}, /* Standard 9600 bps Modem */
252 {"PNPC10D"}, /* Standard 14400 bps Modem */
253 {"PNPC10E"}, /* Standard 28800 bps Modem */
254 {"PNPC10F"}, /* Standard Modem */
255 {"PNP2000"}, /* Standard PCMCIA Card Modem */
256 {"ROK0030"}, /* Rockwell 33.6 DPF Internal PnP, Modular Technology 33.6 Internal PnP */
257 {"ROK0100"}, /* KORTEX 14400 Externe PnP */
258 {"ROK4120"}, /* Rockwell 28.8 */
259 {"ROK4920"}, /* Viking 28.8 INTERNAL Fax+Data+Voice PnP */
260 {"RSS00A0"}, /* Rockwell 33.6 DPF External PnP, BT Prologue 33.6 External PnP, Modular Technology 33.6 External PnP */
261 {"RSS0262"}, /* Viking 56K FAX INT */
262 {"RSS0250"}, /* K56 par,VV,Voice,Speakphone,AudioSpan,PnP */
263 {"SUP1310"}, /* SupraExpress 28.8 Data/Fax PnP modem */
264 {"SUP1381"}, /* SupraExpress 336i PnP Voice Modem */
265 {"SUP1421"}, /* SupraExpress 33.6 Data/Fax PnP modem */
266 {"SUP1590"}, /* SupraExpress 33.6 Data/Fax PnP modem */
267 {"SUP1620"}, /* SupraExpress 336i Sp ASVD */
268 {"SUP1760"}, /* SupraExpress 33.6 Data/Fax PnP modem */
269 {"SUP2171"}, /* SupraExpress 56i Sp Intl */
270 {"TEX0011"}, /* Phoebe Micro 33.6 Data Fax 1433VQH Plug & Play */
271 {"UAC000F"}, /* Archtek SmartLink Modem 3334BT Plug & Play */
272 {"USR0000"}, /* 3Com Corp. Gateway Telepath IIvi 33.6 */
273 {"USR0002"}, /* U.S. Robotics Sporster 33.6K Fax INT PnP */
274 {"USR0004"}, /* Sportster Vi 14.4 PnP FAX Voicemail */
275 {"USR0006"}, /* U.S. Robotics 33.6K Voice INT PnP */
276 {"USR0007"}, /* U.S. Robotics 33.6K Voice EXT PnP */
277 {"USR0009"}, /* U.S. Robotics Courier V.Everything INT PnP */
278 {"USR2002"}, /* U.S. Robotics 33.6K Voice INT PnP */
279 {"USR2070"}, /* U.S. Robotics 56K Voice INT PnP */
280 {"USR2080"}, /* U.S. Robotics 56K Voice EXT PnP */
281 {"USR3031"}, /* U.S. Robotics 56K FAX INT */
282 {"USR3050"}, /* U.S. Robotics 56K FAX INT */
283 {"USR3070"}, /* U.S. Robotics 56K Voice INT PnP */
284 {"USR3080"}, /* U.S. Robotics 56K Voice EXT PnP */
285 {"USR3090"}, /* U.S. Robotics 56K Voice INT PnP */
286 {"USR9100"}, /* U.S. Robotics 56K Message */
287 {"USR9160"}, /* U.S. Robotics 56K FAX EXT PnP */
288 {"USR9170"}, /* U.S. Robotics 56K FAX INT PnP */
289 {"USR9180"}, /* U.S. Robotics 56K Voice EXT PnP */
290 {"USR9190"}, /* U.S. Robotics 56K Voice INT PnP */
291 {"WACFXXX"}, /* Wacom tablets */
292 {"FPI2002"}, /* Compaq touchscreen */
293 {"FUJ02B2"}, /* Fujitsu Stylistic touchscreens */
294 {"FUJ02B3"},
295 {"FUJ02B4"}, /* Fujitsu Stylistic LT touchscreens */
296 {"FUJ02B6"}, /* Passive Fujitsu Stylistic touchscreens */
297 {"FUJ02B7"},
298 {"FUJ02B8"},
299 {"FUJ02B9"},
300 {"FUJ02BC"},
301 {"FUJ02E5"}, /* Fujitsu Wacom Tablet PC device */
302 {"FUJ02E6"}, /* Fujitsu P-series tablet PC device */
303 {"FUJ02E7"}, /* Fujitsu Wacom 2FGT Tablet PC device */
304 {"FUJ02E9"}, /* Fujitsu Wacom 1FGT Tablet PC device */
305 {"LTS0001"}, /* LG C1 EXPRESS DUAL (C1-PB11A3) touch screen (actually a FUJ02E6 in disguise) */
306 {"WCI0003"}, /* Rockwell's (PORALiNK) 33600 INT PNP */
307 {"WEC1022"}, /* Winbond CIR port, should not be probed. We should keep track of it to prevent the legacy serial driver from probing it */
308 {"PNPCXXX"}, /* Unknown PnP modems */
309 {"PNPDXXX"}, /* More unknown PnP modems */
310 /* scl200wdt */
311 {"NSC0800"}, /* National Semiconductor PC87307/PC97307 watchdog component */
312 /* mpu401 */
313 {"PNPb006"},
314 /* cs423x-pnpbios */
315 {"CSC0100"},
316 {"CSC0000"},
317 {"GIM0100"}, /* Guillemot Turtlebeach something appears to be cs4232 compatible */
318 /* es18xx-pnpbios */
319 {"ESS1869"},
320 {"ESS1879"},
321 /* snd-opl3sa2-pnpbios */
322 {"YMH0021"},
323 {"NMX2210"}, /* Gateway Solo 2500 */
324 {""},
325};
326
327static bool is_hex_digit(char c)
328{
329 return (c >= 0 && c <= '9') || (c >= 'A' && c <= 'F');
330}
331
332static bool matching_id(char *idstr, char *list_id)
333{
334 int i;
335
336 if (memcmp(idstr, list_id, 3))
337 return false;
338
339 for (i = 3; i < 7; i++) {
340 char c = toupper(idstr[i]);
341
342 if (!is_hex_digit(c)
343 || (list_id[i] != 'X' && c != toupper(list_id[i])))
344 return false;
345 }
346 return true;
347}
348
349static bool acpi_pnp_match(char *idstr, const struct acpi_device_id **matchid)
350{
351 const struct acpi_device_id *devid;
352
353 for (devid = acpi_pnp_device_ids; devid->id[0]; devid++)
354 if (matching_id(idstr, (char *)devid->id)) {
355 if (matchid)
356 *matchid = devid;
357
358 return true;
359 }
360
361 return false;
362}
363
364static int acpi_pnp_attach(struct acpi_device *adev,
365 const struct acpi_device_id *id)
366{
367 return 1;
368}
369
370static struct acpi_scan_handler acpi_pnp_handler = {
371 .ids = acpi_pnp_device_ids,
372 .match = acpi_pnp_match,
373 .attach = acpi_pnp_attach,
374};
375
376/*
377 * For CMOS RTC devices, the PNP ACPI scan handler does not work, because
378 * there is a CMOS RTC ACPI scan handler installed already, so we need to
379 * check those devices and enumerate them to the PNP bus directly.
380 */
381static int is_cmos_rtc_device(struct acpi_device *adev)
382{
383 struct acpi_device_id ids[] = {
384 { "PNP0B00" },
385 { "PNP0B01" },
386 { "PNP0B02" },
387 {""},
388 };
389 return !acpi_match_device_ids(adev, ids);
390}
391
392bool acpi_is_pnp_device(struct acpi_device *adev)
393{
394 return adev->handler == &acpi_pnp_handler || is_cmos_rtc_device(adev);
395}
396EXPORT_SYMBOL_GPL(acpi_is_pnp_device);
397
398void __init acpi_pnp_init(void)
399{
400 acpi_scan_add_handler(&acpi_pnp_handler);
401}
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index bb7de413d06d..5c16cb6bc76d 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -30,6 +30,7 @@ void acpi_pci_root_init(void);
30void acpi_pci_link_init(void); 30void acpi_pci_link_init(void);
31void acpi_processor_init(void); 31void acpi_processor_init(void);
32void acpi_platform_init(void); 32void acpi_platform_init(void);
33void acpi_pnp_init(void);
33int acpi_sysfs_init(void); 34int acpi_sysfs_init(void);
34#ifdef CONFIG_ACPI_CONTAINER 35#ifdef CONFIG_ACPI_CONTAINER
35void acpi_container_init(void); 36void acpi_container_init(void);
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index e44438f7917b..19d524c5c0c8 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -2253,6 +2253,7 @@ int __init acpi_scan_init(void)
2253 acpi_cmos_rtc_init(); 2253 acpi_cmos_rtc_init();
2254 acpi_container_init(); 2254 acpi_container_init();
2255 acpi_memory_hotplug_init(); 2255 acpi_memory_hotplug_init();
2256 acpi_pnp_init();
2256 2257
2257 mutex_lock(&acpi_scan_lock); 2258 mutex_lock(&acpi_scan_lock);
2258 /* 2259 /*
diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c
index c31aa07b3ba5..b81448b2c75d 100644
--- a/drivers/pnp/pnpacpi/core.c
+++ b/drivers/pnp/pnpacpi/core.c
@@ -30,26 +30,6 @@
30 30
31static int num; 31static int num;
32 32
33/* We need only to blacklist devices that have already an acpi driver that
34 * can't use pnp layer. We don't need to blacklist device that are directly
35 * used by the kernel (PCI root, ...), as it is harmless and there were
36 * already present in pnpbios. But there is an exception for devices that
37 * have irqs (PIC, Timer) because we call acpi_register_gsi.
38 * Finally, only devices that have a CRS method need to be in this list.
39 */
40static struct acpi_device_id excluded_id_list[] __initdata = {
41 {"PNP0C09", 0}, /* EC */
42 {"PNP0C0F", 0}, /* Link device */
43 {"PNP0000", 0}, /* PIC */
44 {"PNP0100", 0}, /* Timer */
45 {"", 0},
46};
47
48static inline int __init is_exclusive_device(struct acpi_device *dev)
49{
50 return (!acpi_match_device_ids(dev, excluded_id_list));
51}
52
53/* 33/*
54 * Compatible Device IDs 34 * Compatible Device IDs
55 */ 35 */
@@ -266,7 +246,7 @@ static int __init pnpacpi_add_device(struct acpi_device *device)
266 if (!pnpid) 246 if (!pnpid)
267 return 0; 247 return 0;
268 248
269 if (is_exclusive_device(device) || !device->status.present) 249 if (!device->status.present)
270 return 0; 250 return 0;
271 251
272 dev = pnp_alloc_dev(&pnpacpi_protocol, num, pnpid); 252 dev = pnp_alloc_dev(&pnpacpi_protocol, num, pnpid);
@@ -326,10 +306,10 @@ static acpi_status __init pnpacpi_add_device_handler(acpi_handle handle,
326{ 306{
327 struct acpi_device *device; 307 struct acpi_device *device;
328 308
329 if (!acpi_bus_get_device(handle, &device)) 309 if (acpi_bus_get_device(handle, &device))
330 pnpacpi_add_device(device);
331 else
332 return AE_CTRL_DEPTH; 310 return AE_CTRL_DEPTH;
311 if (acpi_is_pnp_device(device))
312 pnpacpi_add_device(device);
333 return AE_OK; 313 return AE_OK;
334} 314}
335 315
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 4c007262e891..0b9927f4edd2 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -184,6 +184,8 @@ extern int ec_transaction(u8 command,
184 u8 *rdata, unsigned rdata_len); 184 u8 *rdata, unsigned rdata_len);
185extern acpi_handle ec_get_handle(void); 185extern acpi_handle ec_get_handle(void);
186 186
187extern bool acpi_is_pnp_device(struct acpi_device *);
188
187#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE) 189#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
188 190
189typedef void (*wmi_notify_handler) (u32 value, void *context); 191typedef void (*wmi_notify_handler) (u32 value, void *context);