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 */ 39 struct 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 69 static 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 }; 147 148 bool 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 * 204 * Cezanne systems shouldn't *normally* need this as the BIOS includes 205 * StorageD3Enable. But for two reasons we have added it. 206 * 1) The BIOS on a number of Dell systems have ambiguity 207 * between the same value used for _ADR on ACPI nodes GPP1.DEV0 and GPP1.NVME. 208 * GPP1.NVME is needed to get StorageD3Enable node set properly. 209 * https://bugzilla.kernel.org/show_bug.cgi?id=216440 210 * https://bugzilla.kernel.org/show_bug.cgi?id=216773 211 * https://bugzilla.kernel.org/show_bug.cgi?id=217003 212 * 2) On at least one HP system StorageD3Enable is missing on the second NVME 213 disk in the system. 214 */ 215 static const struct x86_cpu_id storage_d3_cpu_ids[] = { 216 X86_MATCH_VENDOR_FAM_MODEL(AMD, 23, 96, NULL), /* Renoir */ 217 X86_MATCH_VENDOR_FAM_MODEL(AMD, 23, 104, NULL), /* Lucienne */ 218 X86_MATCH_VENDOR_FAM_MODEL(AMD, 25, 80, NULL), /* Cezanne */ 219 {} 220 }; 221 222 bool force_storage_d3(void) 223 { 224 return x86_match_cpu(storage_d3_cpu_ids); 225 } 226 227 /* 228 * x86 ACPI boards which ship with only Android as their factory image usually 229 * declare a whole bunch of bogus I2C devices in their ACPI tables and sometimes 230 * there are issues with serdev devices on these boards too, e.g. the resource 231 * points to the wrong serdev_controller. 232 * 233 * Instantiating I2C / serdev devs for these bogus devs causes various issues, 234 * e.g. GPIO/IRQ resource conflicts because sometimes drivers do bind to them. 235 * The Android x86 kernel fork shipped on these devices has some special code 236 * to remove the bogus I2C clients (and AFAICT serdevs are ignored completely). 237 * 238 * The acpi_quirk_skip_*_enumeration() functions below are used by the I2C or 239 * serdev code to skip instantiating any I2C or serdev devs on broken boards. 240 * 241 * In case of I2C an exception is made for HIDs on the i2c_acpi_known_good_ids 242 * list. These are known to always be correct (and in case of the audio-codecs 243 * the drivers heavily rely on the codec being enumerated through ACPI). 244 * 245 * Note these boards typically do actually have I2C and serdev devices, 246 * just different ones then the ones described in their DSDT. The devices 247 * which are actually present are manually instantiated by the 248 * drivers/platform/x86/x86-android-tablets.c kernel module. 249 */ 250 #define ACPI_QUIRK_SKIP_I2C_CLIENTS BIT(0) 251 #define ACPI_QUIRK_UART1_TTY_UART2_SKIP BIT(1) 252 #define ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY BIT(2) 253 #define ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY BIT(3) 254 #define ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS BIT(4) 255 256 static const struct dmi_system_id acpi_quirk_skip_dmi_ids[] = { 257 /* 258 * 1. Devices with only the skip / don't-skip AC and battery quirks, 259 * sorted alphabetically. 260 */ 261 { 262 /* ECS EF20EA, AXP288 PMIC but uses separate fuel-gauge */ 263 .matches = { 264 DMI_MATCH(DMI_PRODUCT_NAME, "EF20EA"), 265 }, 266 .driver_data = (void *)ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY 267 }, 268 { 269 /* Lenovo Ideapad Miix 320, AXP288 PMIC, separate fuel-gauge */ 270 .matches = { 271 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), 272 DMI_MATCH(DMI_PRODUCT_NAME, "80XF"), 273 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"), 274 }, 275 .driver_data = (void *)ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY 276 }, 277 278 /* 279 * 2. Devices which also have the skip i2c/serdev quirks and which 280 * need the x86-android-tablets module to properly work. 281 */ 282 #if IS_ENABLED(CONFIG_X86_ANDROID_TABLETS) 283 { 284 /* Acer Iconia One 7 B1-750 */ 285 .matches = { 286 DMI_MATCH(DMI_SYS_VENDOR, "Insyde"), 287 DMI_MATCH(DMI_PRODUCT_NAME, "VESPA2"), 288 }, 289 .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS | 290 ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY | 291 ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS), 292 }, 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 ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS), 302 }, 303 { 304 /* Lenovo Yoga Book X90F/L */ 305 .matches = { 306 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Intel Corporation"), 307 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "CHERRYVIEW D1 PLATFORM"), 308 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "YETI-11"), 309 }, 310 .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS | 311 ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY | 312 ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS), 313 }, 314 { 315 .matches = { 316 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 317 DMI_MATCH(DMI_PRODUCT_NAME, "TF103C"), 318 }, 319 .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS | 320 ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY | 321 ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS), 322 }, 323 { 324 /* Lenovo Yoga Tablet 2 1050F/L */ 325 .matches = { 326 DMI_MATCH(DMI_SYS_VENDOR, "Intel Corp."), 327 DMI_MATCH(DMI_PRODUCT_NAME, "VALLEYVIEW C0 PLATFORM"), 328 DMI_MATCH(DMI_BOARD_NAME, "BYT-T FFD8"), 329 /* Partial match on beginning of BIOS version */ 330 DMI_MATCH(DMI_BIOS_VERSION, "BLADE_21"), 331 }, 332 .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS | 333 ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY), 334 }, 335 { 336 /* Lenovo Yoga Tab 3 Pro X90F */ 337 .matches = { 338 DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"), 339 DMI_MATCH(DMI_PRODUCT_NAME, "CHERRYVIEW D1 PLATFORM"), 340 DMI_MATCH(DMI_PRODUCT_VERSION, "Blade3-10A-001"), 341 }, 342 .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS | 343 ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY), 344 }, 345 { 346 /* Medion Lifetab S10346 */ 347 .matches = { 348 DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), 349 DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"), 350 /* Way too generic, also match on BIOS data */ 351 DMI_MATCH(DMI_BIOS_DATE, "10/22/2015"), 352 }, 353 .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS | 354 ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY), 355 }, 356 { 357 /* Nextbook Ares 8 */ 358 .matches = { 359 DMI_MATCH(DMI_SYS_VENDOR, "Insyde"), 360 DMI_MATCH(DMI_PRODUCT_NAME, "M890BAP"), 361 }, 362 .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS | 363 ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY | 364 ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS), 365 }, 366 { 367 /* Whitelabel (sold as various brands) TM800A550L */ 368 .matches = { 369 DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), 370 DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"), 371 /* Above strings are too generic, also match on BIOS version */ 372 DMI_MATCH(DMI_BIOS_VERSION, "ZY-8-BI-PX4S70VTR400-X423B-005-D"), 373 }, 374 .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS | 375 ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY), 376 }, 377 #endif 378 {} 379 }; 380 381 #if IS_ENABLED(CONFIG_X86_ANDROID_TABLETS) 382 static const struct acpi_device_id i2c_acpi_known_good_ids[] = { 383 { "10EC5640", 0 }, /* RealTek ALC5640 audio codec */ 384 { "INT33F4", 0 }, /* X-Powers AXP288 PMIC */ 385 { "INT33FD", 0 }, /* Intel Crystal Cove PMIC */ 386 { "INT34D3", 0 }, /* Intel Whiskey Cove PMIC */ 387 { "NPCE69A", 0 }, /* Asus Transformer keyboard dock */ 388 {} 389 }; 390 391 bool acpi_quirk_skip_i2c_client_enumeration(struct acpi_device *adev) 392 { 393 const struct dmi_system_id *dmi_id; 394 long quirks; 395 396 dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids); 397 if (!dmi_id) 398 return false; 399 400 quirks = (unsigned long)dmi_id->driver_data; 401 if (!(quirks & ACPI_QUIRK_SKIP_I2C_CLIENTS)) 402 return false; 403 404 return acpi_match_device_ids(adev, i2c_acpi_known_good_ids); 405 } 406 EXPORT_SYMBOL_GPL(acpi_quirk_skip_i2c_client_enumeration); 407 408 int acpi_quirk_skip_serdev_enumeration(struct device *controller_parent, bool *skip) 409 { 410 struct acpi_device *adev = ACPI_COMPANION(controller_parent); 411 const struct dmi_system_id *dmi_id; 412 long quirks = 0; 413 u64 uid; 414 int ret; 415 416 *skip = false; 417 418 ret = acpi_dev_uid_to_integer(adev, &uid); 419 if (ret) 420 return 0; 421 422 /* to not match on PNP enumerated debug UARTs */ 423 if (!dev_is_platform(controller_parent)) 424 return 0; 425 426 dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids); 427 if (dmi_id) 428 quirks = (unsigned long)dmi_id->driver_data; 429 430 if (quirks & ACPI_QUIRK_UART1_TTY_UART2_SKIP) { 431 if (uid == 1) 432 return -ENODEV; /* Create tty cdev instead of serdev */ 433 434 if (uid == 2) 435 *skip = true; 436 } 437 438 return 0; 439 } 440 EXPORT_SYMBOL_GPL(acpi_quirk_skip_serdev_enumeration); 441 442 bool acpi_quirk_skip_gpio_event_handlers(void) 443 { 444 const struct dmi_system_id *dmi_id; 445 long quirks; 446 447 dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids); 448 if (!dmi_id) 449 return false; 450 451 quirks = (unsigned long)dmi_id->driver_data; 452 return (quirks & ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS); 453 } 454 EXPORT_SYMBOL_GPL(acpi_quirk_skip_gpio_event_handlers); 455 #endif 456 457 /* Lists of PMIC ACPI HIDs with an (often better) native charger driver */ 458 static const struct { 459 const char *hid; 460 int hrv; 461 } acpi_skip_ac_and_battery_pmic_ids[] = { 462 { "INT33F4", -1 }, /* X-Powers AXP288 PMIC */ 463 { "INT34D3", 3 }, /* Intel Cherrytrail Whiskey Cove PMIC */ 464 }; 465 466 bool acpi_quirk_skip_acpi_ac_and_battery(void) 467 { 468 const struct dmi_system_id *dmi_id; 469 long quirks = 0; 470 int i; 471 472 dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids); 473 if (dmi_id) 474 quirks = (unsigned long)dmi_id->driver_data; 475 476 if (quirks & ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY) 477 return true; 478 479 if (quirks & ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY) 480 return false; 481 482 for (i = 0; i < ARRAY_SIZE(acpi_skip_ac_and_battery_pmic_ids); i++) { 483 if (acpi_dev_present(acpi_skip_ac_and_battery_pmic_ids[i].hid, "1", 484 acpi_skip_ac_and_battery_pmic_ids[i].hrv)) { 485 pr_info_once("found native %s PMIC, skipping ACPI AC and battery devices\n", 486 acpi_skip_ac_and_battery_pmic_ids[i].hid); 487 return true; 488 } 489 } 490 491 return false; 492 } 493 EXPORT_SYMBOL_GPL(acpi_quirk_skip_acpi_ac_and_battery); 494