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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * X86 ACPI Utility Functions
4 *
5 * Copyright (C) 2017 Hans de Goede <hdegoede@redhat.com>
6 *
7 * Based on various non upstream patches to support the CHT Whiskey Cove PMIC:
8 * Copyright (C) 2013-2015 Intel Corporation. All rights reserved.
9 */
10
11#define pr_fmt(fmt) "ACPI: " fmt
12
13#include <linux/acpi.h>
14#include <linux/dmi.h>
15#include <linux/platform_device.h>
16#include <asm/cpu_device_id.h>
17#include <asm/intel-family.h>
18#include "../internal.h"
19
20/*
21 * Some ACPI devices are hidden (status == 0x0) in recent BIOS-es because
22 * some recent Windows drivers bind to one device but poke at multiple
23 * devices at the same time, so the others get hidden.
24 *
25 * Some BIOS-es (temporarily) hide specific APCI devices to work around Windows
26 * driver bugs. We use DMI matching to match known cases of this.
27 *
28 * Likewise sometimes some not-actually present devices are sometimes
29 * reported as present, which may cause issues.
30 *
31 * We work around this by using the below quirk list to override the status
32 * reported by the _STA method with a fixed value (ACPI_STA_DEFAULT or 0).
33 * Note this MUST only be done for devices where this is safe.
34 *
35 * This status overriding is limited to specific CPU (SoC) models both to
36 * avoid potentially causing trouble on other models and because some HIDs
37 * are re-used on different SoCs for completely different devices.
38 */
39struct override_status_id {
40 struct acpi_device_id hid[2];
41 struct x86_cpu_id cpu_ids[2];
42 struct dmi_system_id dmi_ids[2]; /* Optional */
43 const char *uid;
44 const char *path;
45 unsigned long long status;
46};
47
48#define ENTRY(status, hid, uid, path, cpu_model, dmi...) { \
49 { { hid, }, {} }, \
50 { X86_MATCH_INTEL_FAM6_MODEL(cpu_model, NULL), {} }, \
51 { { .matches = dmi }, {} }, \
52 uid, \
53 path, \
54 status, \
55}
56
57#define PRESENT_ENTRY_HID(hid, uid, cpu_model, dmi...) \
58 ENTRY(ACPI_STA_DEFAULT, hid, uid, NULL, cpu_model, dmi)
59
60#define NOT_PRESENT_ENTRY_HID(hid, uid, cpu_model, dmi...) \
61 ENTRY(0, hid, uid, NULL, cpu_model, dmi)
62
63#define PRESENT_ENTRY_PATH(path, cpu_model, dmi...) \
64 ENTRY(ACPI_STA_DEFAULT, "", NULL, path, cpu_model, dmi)
65
66#define NOT_PRESENT_ENTRY_PATH(path, cpu_model, dmi...) \
67 ENTRY(0, "", NULL, path, cpu_model, dmi)
68
69static const struct override_status_id override_status_ids[] = {
70 /*
71 * Bay / Cherry Trail PWM directly poked by GPU driver in win10,
72 * but Linux uses a separate PWM driver, harmless if not used.
73 */
74 PRESENT_ENTRY_HID("80860F09", "1", ATOM_SILVERMONT, {}),
75 PRESENT_ENTRY_HID("80862288", "1", ATOM_AIRMONT, {}),
76
77 /* The Xiaomi Mi Pad 2 uses PWM2 for touchkeys backlight control */
78 PRESENT_ENTRY_HID("80862289", "2", ATOM_AIRMONT, {
79 DMI_MATCH(DMI_SYS_VENDOR, "Xiaomi Inc"),
80 DMI_MATCH(DMI_PRODUCT_NAME, "Mipad2"),
81 }),
82
83 /*
84 * The INT0002 device is necessary to clear wakeup interrupt sources
85 * on Cherry Trail devices, without it we get nobody cared IRQ msgs.
86 */
87 PRESENT_ENTRY_HID("INT0002", "1", ATOM_AIRMONT, {}),
88 /*
89 * On the Dell Venue 11 Pro 7130 and 7139, the DSDT hides
90 * the touchscreen ACPI device until a certain time
91 * after _SB.PCI0.GFX0.LCD.LCD1._ON gets called has passed
92 * *and* _STA has been called at least 3 times since.
93 */
94 PRESENT_ENTRY_HID("SYNA7500", "1", HASWELL_L, {
95 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
96 DMI_MATCH(DMI_PRODUCT_NAME, "Venue 11 Pro 7130"),
97 }),
98 PRESENT_ENTRY_HID("SYNA7500", "1", HASWELL_L, {
99 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
100 DMI_MATCH(DMI_PRODUCT_NAME, "Venue 11 Pro 7139"),
101 }),
102
103 /*
104 * The GPD win BIOS dated 20170221 has disabled the accelerometer, the
105 * drivers sometimes cause crashes under Windows and this is how the
106 * manufacturer has solved this :| The DMI match may not seem unique,
107 * but it is. In the 67000+ DMI decode dumps from linux-hardware.org
108 * only 116 have board_vendor set to "AMI Corporation" and of those 116
109 * only the GPD win and pocket entries' board_name is "Default string".
110 *
111 * Unfortunately the GPD pocket also uses these strings and its BIOS
112 * was copy-pasted from the GPD win, so it has a disabled KIOX000A
113 * node which we should not enable, thus we also check the BIOS date.
114 */
115 PRESENT_ENTRY_HID("KIOX000A", "1", ATOM_AIRMONT, {
116 DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
117 DMI_MATCH(DMI_BOARD_NAME, "Default string"),
118 DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
119 DMI_MATCH(DMI_BIOS_DATE, "02/21/2017")
120 }),
121 PRESENT_ENTRY_HID("KIOX000A", "1", ATOM_AIRMONT, {
122 DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
123 DMI_MATCH(DMI_BOARD_NAME, "Default string"),
124 DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
125 DMI_MATCH(DMI_BIOS_DATE, "03/20/2017")
126 }),
127 PRESENT_ENTRY_HID("KIOX000A", "1", ATOM_AIRMONT, {
128 DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
129 DMI_MATCH(DMI_BOARD_NAME, "Default string"),
130 DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
131 DMI_MATCH(DMI_BIOS_DATE, "05/25/2017")
132 }),
133
134 /*
135 * The GPD win/pocket have a PCI wifi card, but its DSDT has the SDIO
136 * mmc controller enabled and that has a child-device which _PS3
137 * method sets a GPIO causing the PCI wifi card to turn off.
138 * See above remark about uniqueness of the DMI match.
139 */
140 NOT_PRESENT_ENTRY_PATH("\\_SB_.PCI0.SDHB.BRC1", ATOM_AIRMONT, {
141 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
142 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
143 DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"),
144 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
145 }),
146};
147
148bool acpi_device_override_status(struct acpi_device *adev, unsigned long long *status)
149{
150 bool ret = false;
151 unsigned int i;
152
153 for (i = 0; i < ARRAY_SIZE(override_status_ids); i++) {
154 if (!x86_match_cpu(override_status_ids[i].cpu_ids))
155 continue;
156
157 if (override_status_ids[i].dmi_ids[0].matches[0].slot &&
158 !dmi_check_system(override_status_ids[i].dmi_ids))
159 continue;
160
161 if (override_status_ids[i].path) {
162 struct acpi_buffer path = { ACPI_ALLOCATE_BUFFER, NULL };
163 bool match;
164
165 if (acpi_get_name(adev->handle, ACPI_FULL_PATHNAME, &path))
166 continue;
167
168 match = strcmp((char *)path.pointer, override_status_ids[i].path) == 0;
169 kfree(path.pointer);
170
171 if (!match)
172 continue;
173 } else {
174 if (acpi_match_device_ids(adev, override_status_ids[i].hid))
175 continue;
176
177 if (!adev->pnp.unique_id ||
178 strcmp(adev->pnp.unique_id, override_status_ids[i].uid))
179 continue;
180 }
181
182 *status = override_status_ids[i].status;
183 ret = true;
184 break;
185 }
186
187 return ret;
188}
189
190/*
191 * AMD systems from Renoir and Lucienne *require* that the NVME controller
192 * is put into D3 over a Modern Standby / suspend-to-idle cycle.
193 *
194 * This is "typically" accomplished using the `StorageD3Enable`
195 * property in the _DSD that is checked via the `acpi_storage_d3` function
196 * but this property was introduced after many of these systems launched
197 * and most OEM systems don't have it in their BIOS.
198 *
199 * The Microsoft documentation for StorageD3Enable mentioned that Windows has
200 * a hardcoded allowlist for D3 support, which was used for these platforms.
201 *
202 * This allows quirking on Linux in a similar fashion.
203 */
204static const struct x86_cpu_id storage_d3_cpu_ids[] = {
205 X86_MATCH_VENDOR_FAM_MODEL(AMD, 23, 96, NULL), /* Renoir */
206 X86_MATCH_VENDOR_FAM_MODEL(AMD, 23, 104, NULL), /* Lucienne */
207 {}
208};
209
210static const struct dmi_system_id force_storage_d3_dmi[] = {
211 {
212 /*
213 * _ADR is ambiguous between GPP1.DEV0 and GPP1.NVME
214 * but .NVME is needed to get StorageD3Enable node
215 * https://bugzilla.kernel.org/show_bug.cgi?id=216440
216 */
217 .matches = {
218 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
219 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 14 7425 2-in-1"),
220 }
221 },
222 {
223 .matches = {
224 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
225 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 16 5625"),
226 }
227 },
228 {}
229};
230
231bool force_storage_d3(void)
232{
233 const struct dmi_system_id *dmi_id = dmi_first_match(force_storage_d3_dmi);
234
235 return dmi_id || x86_match_cpu(storage_d3_cpu_ids);
236}
237
238/*
239 * x86 ACPI boards which ship with only Android as their factory image usually
240 * declare a whole bunch of bogus I2C devices in their ACPI tables and sometimes
241 * there are issues with serdev devices on these boards too, e.g. the resource
242 * points to the wrong serdev_controller.
243 *
244 * Instantiating I2C / serdev devs for these bogus devs causes various issues,
245 * e.g. GPIO/IRQ resource conflicts because sometimes drivers do bind to them.
246 * The Android x86 kernel fork shipped on these devices has some special code
247 * to remove the bogus I2C clients (and AFAICT serdevs are ignored completely).
248 *
249 * The acpi_quirk_skip_*_enumeration() functions below are used by the I2C or
250 * serdev code to skip instantiating any I2C or serdev devs on broken boards.
251 *
252 * In case of I2C an exception is made for HIDs on the i2c_acpi_known_good_ids
253 * list. These are known to always be correct (and in case of the audio-codecs
254 * the drivers heavily rely on the codec being enumerated through ACPI).
255 *
256 * Note these boards typically do actually have I2C and serdev devices,
257 * just different ones then the ones described in their DSDT. The devices
258 * which are actually present are manually instantiated by the
259 * drivers/platform/x86/x86-android-tablets.c kernel module.
260 */
261#define ACPI_QUIRK_SKIP_I2C_CLIENTS BIT(0)
262#define ACPI_QUIRK_UART1_TTY_UART2_SKIP BIT(1)
263#define ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY BIT(2)
264#define ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY BIT(3)
265
266static const struct dmi_system_id acpi_quirk_skip_dmi_ids[] = {
267 /*
268 * 1. Devices with only the skip / don't-skip AC and battery quirks,
269 * sorted alphabetically.
270 */
271 {
272 /* ECS EF20EA, AXP288 PMIC but uses separate fuel-gauge */
273 .matches = {
274 DMI_MATCH(DMI_PRODUCT_NAME, "EF20EA"),
275 },
276 .driver_data = (void *)ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY
277 },
278 {
279 /* Lenovo Ideapad Miix 320, AXP288 PMIC, separate fuel-gauge */
280 .matches = {
281 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
282 DMI_MATCH(DMI_PRODUCT_NAME, "80XF"),
283 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"),
284 },
285 .driver_data = (void *)ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY
286 },
287
288 /*
289 * 2. Devices which also have the skip i2c/serdev quirks and which
290 * need the x86-android-tablets module to properly work.
291 */
292#if IS_ENABLED(CONFIG_X86_ANDROID_TABLETS)
293 {
294 .matches = {
295 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
296 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "ME176C"),
297 },
298 .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
299 ACPI_QUIRK_UART1_TTY_UART2_SKIP |
300 ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
301 },
302 {
303 .matches = {
304 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
305 DMI_MATCH(DMI_PRODUCT_NAME, "TF103C"),
306 },
307 .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
308 ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
309 },
310 {
311 /* Lenovo Yoga Tablet 2 1050F/L */
312 .matches = {
313 DMI_MATCH(DMI_SYS_VENDOR, "Intel Corp."),
314 DMI_MATCH(DMI_PRODUCT_NAME, "VALLEYVIEW C0 PLATFORM"),
315 DMI_MATCH(DMI_BOARD_NAME, "BYT-T FFD8"),
316 /* Partial match on beginning of BIOS version */
317 DMI_MATCH(DMI_BIOS_VERSION, "BLADE_21"),
318 },
319 .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
320 ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
321 },
322 {
323 /* Lenovo Yoga Tab 3 Pro X90F */
324 .matches = {
325 DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
326 DMI_MATCH(DMI_PRODUCT_NAME, "CHERRYVIEW D1 PLATFORM"),
327 DMI_MATCH(DMI_PRODUCT_VERSION, "Blade3-10A-001"),
328 },
329 .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
330 ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
331 },
332 {
333 /* Medion Lifetab S10346 */
334 .matches = {
335 DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
336 DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
337 /* Way too generic, also match on BIOS data */
338 DMI_MATCH(DMI_BIOS_DATE, "10/22/2015"),
339 },
340 .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
341 ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
342 },
343 {
344 /* Nextbook Ares 8 */
345 .matches = {
346 DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
347 DMI_MATCH(DMI_PRODUCT_NAME, "M890BAP"),
348 },
349 .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
350 ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
351 },
352 {
353 /* Whitelabel (sold as various brands) TM800A550L */
354 .matches = {
355 DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
356 DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
357 /* Above strings are too generic, also match on BIOS version */
358 DMI_MATCH(DMI_BIOS_VERSION, "ZY-8-BI-PX4S70VTR400-X423B-005-D"),
359 },
360 .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
361 ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
362 },
363#endif
364 {}
365};
366
367#if IS_ENABLED(CONFIG_X86_ANDROID_TABLETS)
368static const struct acpi_device_id i2c_acpi_known_good_ids[] = {
369 { "10EC5640", 0 }, /* RealTek ALC5640 audio codec */
370 { "INT33F4", 0 }, /* X-Powers AXP288 PMIC */
371 { "INT33FD", 0 }, /* Intel Crystal Cove PMIC */
372 { "INT34D3", 0 }, /* Intel Whiskey Cove PMIC */
373 { "NPCE69A", 0 }, /* Asus Transformer keyboard dock */
374 {}
375};
376
377bool acpi_quirk_skip_i2c_client_enumeration(struct acpi_device *adev)
378{
379 const struct dmi_system_id *dmi_id;
380 long quirks;
381
382 dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids);
383 if (!dmi_id)
384 return false;
385
386 quirks = (unsigned long)dmi_id->driver_data;
387 if (!(quirks & ACPI_QUIRK_SKIP_I2C_CLIENTS))
388 return false;
389
390 return acpi_match_device_ids(adev, i2c_acpi_known_good_ids);
391}
392EXPORT_SYMBOL_GPL(acpi_quirk_skip_i2c_client_enumeration);
393
394int acpi_quirk_skip_serdev_enumeration(struct device *controller_parent, bool *skip)
395{
396 struct acpi_device *adev = ACPI_COMPANION(controller_parent);
397 const struct dmi_system_id *dmi_id;
398 long quirks = 0;
399 u64 uid;
400 int ret;
401
402 *skip = false;
403
404 ret = acpi_dev_uid_to_integer(adev, &uid);
405 if (ret)
406 return 0;
407
408 /* to not match on PNP enumerated debug UARTs */
409 if (!dev_is_platform(controller_parent))
410 return 0;
411
412 dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids);
413 if (dmi_id)
414 quirks = (unsigned long)dmi_id->driver_data;
415
416 if (quirks & ACPI_QUIRK_UART1_TTY_UART2_SKIP) {
417 if (uid == 1)
418 return -ENODEV; /* Create tty cdev instead of serdev */
419
420 if (uid == 2)
421 *skip = true;
422 }
423
424 return 0;
425}
426EXPORT_SYMBOL_GPL(acpi_quirk_skip_serdev_enumeration);
427#endif
428
429/* Lists of PMIC ACPI HIDs with an (often better) native charger driver */
430static const struct {
431 const char *hid;
432 int hrv;
433} acpi_skip_ac_and_battery_pmic_ids[] = {
434 { "INT33F4", -1 }, /* X-Powers AXP288 PMIC */
435 { "INT34D3", 3 }, /* Intel Cherrytrail Whiskey Cove PMIC */
436};
437
438bool acpi_quirk_skip_acpi_ac_and_battery(void)
439{
440 const struct dmi_system_id *dmi_id;
441 long quirks = 0;
442 int i;
443
444 dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids);
445 if (dmi_id)
446 quirks = (unsigned long)dmi_id->driver_data;
447
448 if (quirks & ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY)
449 return true;
450
451 if (quirks & ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY)
452 return false;
453
454 for (i = 0; i < ARRAY_SIZE(acpi_skip_ac_and_battery_pmic_ids); i++) {
455 if (acpi_dev_present(acpi_skip_ac_and_battery_pmic_ids[i].hid, "1",
456 acpi_skip_ac_and_battery_pmic_ids[i].hrv)) {
457 pr_info_once("found native %s PMIC, skipping ACPI AC and battery devices\n",
458 acpi_skip_ac_and_battery_pmic_ids[i].hid);
459 return true;
460 }
461 }
462
463 return false;
464}
465EXPORT_SYMBOL_GPL(acpi_quirk_skip_acpi_ac_and_battery);