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 static 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 }; 209 210 bool force_storage_d3(void) 211 { 212 return x86_match_cpu(storage_d3_cpu_ids); 213 } 214 215 /* 216 * x86 ACPI boards which ship with only Android as their factory image usually 217 * declare a whole bunch of bogus I2C devices in their ACPI tables and sometimes 218 * there are issues with serdev devices on these boards too, e.g. the resource 219 * points to the wrong serdev_controller. 220 * 221 * Instantiating I2C / serdev devs for these bogus devs causes various issues, 222 * e.g. GPIO/IRQ resource conflicts because sometimes drivers do bind to them. 223 * The Android x86 kernel fork shipped on these devices has some special code 224 * to remove the bogus I2C clients (and AFAICT serdevs are ignored completely). 225 * 226 * The acpi_quirk_skip_*_enumeration() functions below are used by the I2C or 227 * serdev code to skip instantiating any I2C or serdev devs on broken boards. 228 * 229 * In case of I2C an exception is made for HIDs on the i2c_acpi_known_good_ids 230 * list. These are known to always be correct (and in case of the audio-codecs 231 * the drivers heavily rely on the codec being enumerated through ACPI). 232 * 233 * Note these boards typically do actually have I2C and serdev devices, 234 * just different ones then the ones described in their DSDT. The devices 235 * which are actually present are manually instantiated by the 236 * drivers/platform/x86/x86-android-tablets.c kernel module. 237 */ 238 #define ACPI_QUIRK_SKIP_I2C_CLIENTS BIT(0) 239 #define ACPI_QUIRK_UART1_TTY_UART2_SKIP BIT(1) 240 #define ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY BIT(2) 241 #define ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY BIT(3) 242 243 static const struct dmi_system_id acpi_quirk_skip_dmi_ids[] = { 244 /* 245 * 1. Devices with only the skip / don't-skip AC and battery quirks, 246 * sorted alphabetically. 247 */ 248 { 249 /* ECS EF20EA, AXP288 PMIC but uses separate fuel-gauge */ 250 .matches = { 251 DMI_MATCH(DMI_PRODUCT_NAME, "EF20EA"), 252 }, 253 .driver_data = (void *)ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY 254 }, 255 { 256 /* Lenovo Ideapad Miix 320, AXP288 PMIC, separate fuel-gauge */ 257 .matches = { 258 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), 259 DMI_MATCH(DMI_PRODUCT_NAME, "80XF"), 260 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"), 261 }, 262 .driver_data = (void *)ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY 263 }, 264 265 /* 266 * 2. Devices which also have the skip i2c/serdev quirks and which 267 * need the x86-android-tablets module to properly work. 268 */ 269 #if IS_ENABLED(CONFIG_X86_ANDROID_TABLETS) 270 { 271 .matches = { 272 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 273 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "ME176C"), 274 }, 275 .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS | 276 ACPI_QUIRK_UART1_TTY_UART2_SKIP | 277 ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY), 278 }, 279 { 280 .matches = { 281 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 282 DMI_MATCH(DMI_PRODUCT_NAME, "TF103C"), 283 }, 284 .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS | 285 ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY), 286 }, 287 { 288 /* Lenovo Yoga Tablet 1050F/L */ 289 .matches = { 290 DMI_MATCH(DMI_SYS_VENDOR, "Intel Corp."), 291 DMI_MATCH(DMI_PRODUCT_NAME, "VALLEYVIEW C0 PLATFORM"), 292 DMI_MATCH(DMI_BOARD_NAME, "BYT-T FFD8"), 293 /* Partial match on beginning of BIOS version */ 294 DMI_MATCH(DMI_BIOS_VERSION, "BLADE_21"), 295 }, 296 .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS | 297 ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY), 298 }, 299 { 300 /* Nextbook Ares 8 */ 301 .matches = { 302 DMI_MATCH(DMI_SYS_VENDOR, "Insyde"), 303 DMI_MATCH(DMI_PRODUCT_NAME, "M890BAP"), 304 }, 305 .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS | 306 ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY), 307 }, 308 { 309 /* Whitelabel (sold as various brands) TM800A550L */ 310 .matches = { 311 DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), 312 DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"), 313 /* Above strings are too generic, also match on BIOS version */ 314 DMI_MATCH(DMI_BIOS_VERSION, "ZY-8-BI-PX4S70VTR400-X423B-005-D"), 315 }, 316 .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS | 317 ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY), 318 }, 319 #endif 320 {} 321 }; 322 323 #if IS_ENABLED(CONFIG_X86_ANDROID_TABLETS) 324 static const struct acpi_device_id i2c_acpi_known_good_ids[] = { 325 { "10EC5640", 0 }, /* RealTek ALC5640 audio codec */ 326 { "INT33F4", 0 }, /* X-Powers AXP288 PMIC */ 327 { "INT33FD", 0 }, /* Intel Crystal Cove PMIC */ 328 { "NPCE69A", 0 }, /* Asus Transformer keyboard dock */ 329 {} 330 }; 331 332 bool acpi_quirk_skip_i2c_client_enumeration(struct acpi_device *adev) 333 { 334 const struct dmi_system_id *dmi_id; 335 long quirks; 336 337 dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids); 338 if (!dmi_id) 339 return false; 340 341 quirks = (unsigned long)dmi_id->driver_data; 342 if (!(quirks & ACPI_QUIRK_SKIP_I2C_CLIENTS)) 343 return false; 344 345 return acpi_match_device_ids(adev, i2c_acpi_known_good_ids); 346 } 347 EXPORT_SYMBOL_GPL(acpi_quirk_skip_i2c_client_enumeration); 348 349 int acpi_quirk_skip_serdev_enumeration(struct device *controller_parent, bool *skip) 350 { 351 struct acpi_device *adev = ACPI_COMPANION(controller_parent); 352 const struct dmi_system_id *dmi_id; 353 long quirks = 0; 354 355 *skip = false; 356 357 /* !dev_is_platform() to not match on PNP enumerated debug UARTs */ 358 if (!adev || !adev->pnp.unique_id || !dev_is_platform(controller_parent)) 359 return 0; 360 361 dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids); 362 if (dmi_id) 363 quirks = (unsigned long)dmi_id->driver_data; 364 365 if (quirks & ACPI_QUIRK_UART1_TTY_UART2_SKIP) { 366 if (!strcmp(adev->pnp.unique_id, "1")) 367 return -ENODEV; /* Create tty cdev instead of serdev */ 368 369 if (!strcmp(adev->pnp.unique_id, "2")) 370 *skip = true; 371 } 372 373 return 0; 374 } 375 EXPORT_SYMBOL_GPL(acpi_quirk_skip_serdev_enumeration); 376 #endif 377 378 /* Lists of PMIC ACPI HIDs with an (often better) native charger driver */ 379 static const struct { 380 const char *hid; 381 int hrv; 382 } acpi_skip_ac_and_battery_pmic_ids[] = { 383 { "INT33F4", -1 }, /* X-Powers AXP288 PMIC */ 384 { "INT34D3", 3 }, /* Intel Cherrytrail Whiskey Cove PMIC */ 385 }; 386 387 bool acpi_quirk_skip_acpi_ac_and_battery(void) 388 { 389 const struct dmi_system_id *dmi_id; 390 long quirks = 0; 391 int i; 392 393 dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids); 394 if (dmi_id) 395 quirks = (unsigned long)dmi_id->driver_data; 396 397 if (quirks & ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY) 398 return true; 399 400 if (quirks & ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY) 401 return false; 402 403 for (i = 0; i < ARRAY_SIZE(acpi_skip_ac_and_battery_pmic_ids); i++) { 404 if (acpi_dev_present(acpi_skip_ac_and_battery_pmic_ids[i].hid, "1", 405 acpi_skip_ac_and_battery_pmic_ids[i].hrv)) { 406 pr_info_once("found native %s PMIC, skipping ACPI AC and battery devices\n", 407 acpi_skip_ac_and_battery_pmic_ids[i].hid); 408 return true; 409 } 410 } 411 412 return false; 413 } 414 EXPORT_SYMBOL_GPL(acpi_quirk_skip_acpi_ac_and_battery); 415