1 // SPDX-License-Identifier: GPL-2.0-only
3 * X86 ACPI Utility Functions
5 * Copyright (C) 2017 Hans de Goede <hdegoede@redhat.com>
7 * Based on various non upstream patches to support the CHT Whiskey Cove PMIC:
8 * Copyright (C) 2013-2015 Intel Corporation. All rights reserved.
11 #define pr_fmt(fmt) "ACPI: " fmt
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"
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.
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.
28 * Likewise sometimes some not-actually present devices are sometimes
29 * reported as present, which may cause issues.
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.
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.
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 */
45 unsigned long long status;
48 #define ENTRY(status, hid, uid, path, cpu_model, dmi...) { \
50 { X86_MATCH_INTEL_FAM6_MODEL(cpu_model, NULL), {} }, \
51 { { .matches = dmi }, {} }, \
57 #define PRESENT_ENTRY_HID(hid, uid, cpu_model, dmi...) \
58 ENTRY(ACPI_STA_DEFAULT, hid, uid, NULL, cpu_model, dmi)
60 #define NOT_PRESENT_ENTRY_HID(hid, uid, cpu_model, dmi...) \
61 ENTRY(0, hid, uid, NULL, cpu_model, dmi)
63 #define PRESENT_ENTRY_PATH(path, cpu_model, dmi...) \
64 ENTRY(ACPI_STA_DEFAULT, "", NULL, path, cpu_model, dmi)
66 #define NOT_PRESENT_ENTRY_PATH(path, cpu_model, dmi...) \
67 ENTRY(0, "", NULL, path, cpu_model, dmi)
69 static const struct override_status_id override_status_ids[] = {
71 * Bay / Cherry Trail PWM directly poked by GPU driver in win10,
72 * but Linux uses a separate PWM driver, harmless if not used.
74 PRESENT_ENTRY_HID("80860F09", "1", ATOM_SILVERMONT, {}),
75 PRESENT_ENTRY_HID("80862288", "1", ATOM_AIRMONT, {}),
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"),
84 * The INT0002 device is necessary to clear wakeup interrupt sources
85 * on Cherry Trail devices, without it we get nobody cared IRQ msgs.
87 PRESENT_ENTRY_HID("INT0002", "1", ATOM_AIRMONT, {}),
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.
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"),
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"),
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".
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.
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")
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")
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")
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.
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"),
148 bool acpi_device_override_status(struct acpi_device *adev, unsigned long long *status)
153 for (i = 0; i < ARRAY_SIZE(override_status_ids); i++) {
154 if (!x86_match_cpu(override_status_ids[i].cpu_ids))
157 if (override_status_ids[i].dmi_ids[0].matches[0].slot &&
158 !dmi_check_system(override_status_ids[i].dmi_ids))
161 if (override_status_ids[i].path) {
162 struct acpi_buffer path = { ACPI_ALLOCATE_BUFFER, NULL };
165 if (acpi_get_name(adev->handle, ACPI_FULL_PATHNAME, &path))
168 match = strcmp((char *)path.pointer, override_status_ids[i].path) == 0;
174 if (acpi_match_device_ids(adev, override_status_ids[i].hid))
177 if (!adev->pnp.unique_id ||
178 strcmp(adev->pnp.unique_id, override_status_ids[i].uid))
182 *status = override_status_ids[i].status;
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.
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.
199 * The Microsoft documentation for StorageD3Enable mentioned that Windows has
200 * a hardcoded allowlist for D3 support, which was used for these platforms.
202 * This allows quirking on Linux in a similar fashion.
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 */
210 bool force_storage_d3(void)
212 return x86_match_cpu(storage_d3_cpu_ids);
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.
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).
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.
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).
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.
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)
243 static const struct dmi_system_id acpi_quirk_skip_dmi_ids[] = {
245 * 1. Devices with only the skip / don't-skip AC and battery quirks,
246 * sorted alphabetically.
249 /* ECS EF20EA, AXP288 PMIC but uses separate fuel-gauge */
251 DMI_MATCH(DMI_PRODUCT_NAME, "EF20EA"),
253 .driver_data = (void *)ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY
256 /* Lenovo Ideapad Miix 320, AXP288 PMIC, separate fuel-gauge */
258 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
259 DMI_MATCH(DMI_PRODUCT_NAME, "80XF"),
260 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"),
262 .driver_data = (void *)ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY
266 * 2. Devices which also have the skip i2c/serdev quirks and which
267 * need the x86-android-tablets module to properly work.
269 #if IS_ENABLED(CONFIG_X86_ANDROID_TABLETS)
272 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
273 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "ME176C"),
275 .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
276 ACPI_QUIRK_UART1_TTY_UART2_SKIP |
277 ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
281 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
282 DMI_MATCH(DMI_PRODUCT_NAME, "TF103C"),
284 .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
285 ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
288 /* Lenovo Yoga Tablet 1050F/L */
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"),
296 .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
297 ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
300 /* Nextbook Ares 8 */
302 DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
303 DMI_MATCH(DMI_PRODUCT_NAME, "M890BAP"),
305 .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
306 ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
309 /* Whitelabel (sold as various brands) TM800A550L */
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"),
316 .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
317 ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
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 */
332 bool acpi_quirk_skip_i2c_client_enumeration(struct acpi_device *adev)
334 const struct dmi_system_id *dmi_id;
337 dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids);
341 quirks = (unsigned long)dmi_id->driver_data;
342 if (!(quirks & ACPI_QUIRK_SKIP_I2C_CLIENTS))
345 return acpi_match_device_ids(adev, i2c_acpi_known_good_ids);
347 EXPORT_SYMBOL_GPL(acpi_quirk_skip_i2c_client_enumeration);
349 int acpi_quirk_skip_serdev_enumeration(struct device *controller_parent, bool *skip)
351 struct acpi_device *adev = ACPI_COMPANION(controller_parent);
352 const struct dmi_system_id *dmi_id;
357 /* !dev_is_platform() to not match on PNP enumerated debug UARTs */
358 if (!adev || !adev->pnp.unique_id || !dev_is_platform(controller_parent))
361 dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids);
363 quirks = (unsigned long)dmi_id->driver_data;
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 */
369 if (!strcmp(adev->pnp.unique_id, "2"))
375 EXPORT_SYMBOL_GPL(acpi_quirk_skip_serdev_enumeration);
378 /* Lists of PMIC ACPI HIDs with an (often better) native charger driver */
379 static const struct {
382 } acpi_skip_ac_and_battery_pmic_ids[] = {
383 { "INT33F4", -1 }, /* X-Powers AXP288 PMIC */
384 { "INT34D3", 3 }, /* Intel Cherrytrail Whiskey Cove PMIC */
387 bool acpi_quirk_skip_acpi_ac_and_battery(void)
389 const struct dmi_system_id *dmi_id;
393 dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids);
395 quirks = (unsigned long)dmi_id->driver_data;
397 if (quirks & ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY)
400 if (quirks & ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY)
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);
414 EXPORT_SYMBOL_GPL(acpi_quirk_skip_acpi_ac_and_battery);