xref: /linux/drivers/acpi/x86/utils.c (revision 83439a0f1ce6a592f95e41338320b5f01b98a356)
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 static 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 };
224 
225 bool force_storage_d3(void)
226 {
227 	const struct dmi_system_id *dmi_id = dmi_first_match(force_storage_d3_dmi);
228 
229 	return dmi_id || x86_match_cpu(storage_d3_cpu_ids);
230 }
231 
232 /*
233  * x86 ACPI boards which ship with only Android as their factory image usually
234  * declare a whole bunch of bogus I2C devices in their ACPI tables and sometimes
235  * there are issues with serdev devices on these boards too, e.g. the resource
236  * points to the wrong serdev_controller.
237  *
238  * Instantiating I2C / serdev devs for these bogus devs causes various issues,
239  * e.g. GPIO/IRQ resource conflicts because sometimes drivers do bind to them.
240  * The Android x86 kernel fork shipped on these devices has some special code
241  * to remove the bogus I2C clients (and AFAICT serdevs are ignored completely).
242  *
243  * The acpi_quirk_skip_*_enumeration() functions below are used by the I2C or
244  * serdev code to skip instantiating any I2C or serdev devs on broken boards.
245  *
246  * In case of I2C an exception is made for HIDs on the i2c_acpi_known_good_ids
247  * list. These are known to always be correct (and in case of the audio-codecs
248  * the drivers heavily rely on the codec being enumerated through ACPI).
249  *
250  * Note these boards typically do actually have I2C and serdev devices,
251  * just different ones then the ones described in their DSDT. The devices
252  * which are actually present are manually instantiated by the
253  * drivers/platform/x86/x86-android-tablets.c kernel module.
254  */
255 #define ACPI_QUIRK_SKIP_I2C_CLIENTS				BIT(0)
256 #define ACPI_QUIRK_UART1_TTY_UART2_SKIP				BIT(1)
257 #define ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY			BIT(2)
258 #define ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY			BIT(3)
259 
260 static const struct dmi_system_id acpi_quirk_skip_dmi_ids[] = {
261 	/*
262 	 * 1. Devices with only the skip / don't-skip AC and battery quirks,
263 	 *    sorted alphabetically.
264 	 */
265 	{
266 		/* ECS EF20EA, AXP288 PMIC but uses separate fuel-gauge */
267 		.matches = {
268 			DMI_MATCH(DMI_PRODUCT_NAME, "EF20EA"),
269 		},
270 		.driver_data = (void *)ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY
271 	},
272 	{
273 		/* Lenovo Ideapad Miix 320, AXP288 PMIC, separate fuel-gauge */
274 		.matches = {
275 			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
276 			DMI_MATCH(DMI_PRODUCT_NAME, "80XF"),
277 			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"),
278 		},
279 		.driver_data = (void *)ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY
280 	},
281 
282 	/*
283 	 * 2. Devices which also have the skip i2c/serdev quirks and which
284 	 *    need the x86-android-tablets module to properly work.
285 	 */
286 #if IS_ENABLED(CONFIG_X86_ANDROID_TABLETS)
287 	{
288 		.matches = {
289 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
290 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "ME176C"),
291 		},
292 		.driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
293 					ACPI_QUIRK_UART1_TTY_UART2_SKIP |
294 					ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
295 	},
296 	{
297 		.matches = {
298 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
299 			DMI_MATCH(DMI_PRODUCT_NAME, "TF103C"),
300 		},
301 		.driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
302 					ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
303 	},
304 	{
305 		/* Lenovo Yoga Tablet 1050F/L */
306 		.matches = {
307 			DMI_MATCH(DMI_SYS_VENDOR, "Intel Corp."),
308 			DMI_MATCH(DMI_PRODUCT_NAME, "VALLEYVIEW C0 PLATFORM"),
309 			DMI_MATCH(DMI_BOARD_NAME, "BYT-T FFD8"),
310 			/* Partial match on beginning of BIOS version */
311 			DMI_MATCH(DMI_BIOS_VERSION, "BLADE_21"),
312 		},
313 		.driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
314 					ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
315 	},
316 	{
317 		/* Nextbook Ares 8 */
318 		.matches = {
319 			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
320 			DMI_MATCH(DMI_PRODUCT_NAME, "M890BAP"),
321 		},
322 		.driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
323 					ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
324 	},
325 	{
326 		/* Whitelabel (sold as various brands) TM800A550L */
327 		.matches = {
328 			DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
329 			DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
330 			/* Above strings are too generic, also match on BIOS version */
331 			DMI_MATCH(DMI_BIOS_VERSION, "ZY-8-BI-PX4S70VTR400-X423B-005-D"),
332 		},
333 		.driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
334 					ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
335 	},
336 #endif
337 	{}
338 };
339 
340 #if IS_ENABLED(CONFIG_X86_ANDROID_TABLETS)
341 static const struct acpi_device_id i2c_acpi_known_good_ids[] = {
342 	{ "10EC5640", 0 }, /* RealTek ALC5640 audio codec */
343 	{ "INT33F4", 0 },  /* X-Powers AXP288 PMIC */
344 	{ "INT33FD", 0 },  /* Intel Crystal Cove PMIC */
345 	{ "NPCE69A", 0 },  /* Asus Transformer keyboard dock */
346 	{}
347 };
348 
349 bool acpi_quirk_skip_i2c_client_enumeration(struct acpi_device *adev)
350 {
351 	const struct dmi_system_id *dmi_id;
352 	long quirks;
353 
354 	dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids);
355 	if (!dmi_id)
356 		return false;
357 
358 	quirks = (unsigned long)dmi_id->driver_data;
359 	if (!(quirks & ACPI_QUIRK_SKIP_I2C_CLIENTS))
360 		return false;
361 
362 	return acpi_match_device_ids(adev, i2c_acpi_known_good_ids);
363 }
364 EXPORT_SYMBOL_GPL(acpi_quirk_skip_i2c_client_enumeration);
365 
366 int acpi_quirk_skip_serdev_enumeration(struct device *controller_parent, bool *skip)
367 {
368 	struct acpi_device *adev = ACPI_COMPANION(controller_parent);
369 	const struct dmi_system_id *dmi_id;
370 	long quirks = 0;
371 	u64 uid;
372 	int ret;
373 
374 	*skip = false;
375 
376 	ret = acpi_dev_uid_to_integer(adev, &uid);
377 	if (ret)
378 		return 0;
379 
380 	/* to not match on PNP enumerated debug UARTs */
381 	if (!dev_is_platform(controller_parent))
382 		return 0;
383 
384 	dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids);
385 	if (dmi_id)
386 		quirks = (unsigned long)dmi_id->driver_data;
387 
388 	if (quirks & ACPI_QUIRK_UART1_TTY_UART2_SKIP) {
389 		if (uid == 1)
390 			return -ENODEV; /* Create tty cdev instead of serdev */
391 
392 		if (uid == 2)
393 			*skip = true;
394 	}
395 
396 	return 0;
397 }
398 EXPORT_SYMBOL_GPL(acpi_quirk_skip_serdev_enumeration);
399 #endif
400 
401 /* Lists of PMIC ACPI HIDs with an (often better) native charger driver */
402 static const struct {
403 	const char *hid;
404 	int hrv;
405 } acpi_skip_ac_and_battery_pmic_ids[] = {
406 	{ "INT33F4", -1 }, /* X-Powers AXP288 PMIC */
407 	{ "INT34D3",  3 }, /* Intel Cherrytrail Whiskey Cove PMIC */
408 };
409 
410 bool acpi_quirk_skip_acpi_ac_and_battery(void)
411 {
412 	const struct dmi_system_id *dmi_id;
413 	long quirks = 0;
414 	int i;
415 
416 	dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids);
417 	if (dmi_id)
418 		quirks = (unsigned long)dmi_id->driver_data;
419 
420 	if (quirks & ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY)
421 		return true;
422 
423 	if (quirks & ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY)
424 		return false;
425 
426 	for (i = 0; i < ARRAY_SIZE(acpi_skip_ac_and_battery_pmic_ids); i++) {
427 		if (acpi_dev_present(acpi_skip_ac_and_battery_pmic_ids[i].hid, "1",
428 				     acpi_skip_ac_and_battery_pmic_ids[i].hrv)) {
429 			pr_info_once("found native %s PMIC, skipping ACPI AC and battery devices\n",
430 				     acpi_skip_ac_and_battery_pmic_ids[i].hid);
431 			return true;
432 		}
433 	}
434 
435 	return false;
436 }
437 EXPORT_SYMBOL_GPL(acpi_quirk_skip_acpi_ac_and_battery);
438