1 // SPDX-License-Identifier: GPL-2.0-only
8  * Copyright (C) 2013-2015 Intel Corporation. All rights reserved.
17 #include <asm/intel-family.h>
21  * Some ACPI devices are hidden (status == 0x0) in recent BIOS-es because
25  * Some BIOS-es (temporarily) hide specific APCI devices to work around Windows
28  * Likewise sometimes some not-actually present devices are sometimes
37  * are re-used on different SoCs for completely different devices.
40 	struct acpi_device_id hid[2];  member
48 #define ENTRY(status, hid, uid, path, cpu_vfm, dmi...) {		\  argument
49 	{ { hid, }, {} },						\
57 #define PRESENT_ENTRY_HID(hid, uid, cpu_vfm, dmi...) \  argument
58 	ENTRY(ACPI_STA_DEFAULT, hid, uid, NULL, cpu_vfm, dmi)
60 #define NOT_PRESENT_ENTRY_HID(hid, uid, cpu_vfm, dmi...) \  argument
61 	ENTRY(0, hid, uid, NULL, cpu_vfm, dmi)
116 	 * but it is. In the 67000+ DMI decode dumps from linux-hardware.org
121 	 * was copy-pasted from the GPD win, so it has a disabled KIOX000A
145 	 * mmc controller enabled and that has a child-device which _PS3
159 	 * i2c client for one of them, ignore MAGN0001.
184 			if (acpi_get_name(adev->handle, ACPI_FULL_PATHNAME, &path))  in acpi_device_override_status()
193 			if (acpi_match_device_ids(adev, override_status_ids[i].hid))  in acpi_device_override_status()
210  * is put into D3 over a Modern Standby / suspend-to-idle cycle.
244  * declare a whole bunch of bogus I2C devices in their ACPI tables and sometimes
248  * Instantiating I2C / serdev devs for these bogus devs causes various issues,
251  * to remove the bogus I2C clients (and AFAICT serdevs are ignored completely).
253  * The acpi_quirk_skip_*_enumeration() functions below are used by the I2C or
254  * serdev code to skip instantiating any I2C or serdev devs on broken boards.
256  * In case of I2C an exception is made for HIDs on the i2c_acpi_known_good_ids
257  * list. These are known to always be correct (and in case of the audio-codecs
260  * Note these boards typically do actually have I2C and serdev devices,
263  * drivers/platform/x86/x86-android-tablets.c kernel module.
275 	 * 1. Devices with only the skip / don't-skip AC and battery quirks,
279 		/* ECS EF20EA, AXP288 PMIC but uses separate fuel-gauge */
286 		/* Lenovo Ideapad Miix 320, AXP288 PMIC, separate fuel-gauge */
290 			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"),
296 	 * 2. Devices which also have the skip i2c/serdev quirks and which
297 	 *    need the x86-android-tablets module to properly work.
301 		/* Acer Iconia One 7 B1-750 */
325 			DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "YETI-11"),
346 			DMI_MATCH(DMI_BOARD_NAME, "BYT-T FFD8"),
358 			DMI_MATCH(DMI_PRODUCT_VERSION, "Blade3-10A-001"),
400 			DMI_MATCH(DMI_BIOS_VERSION, "ZY-8-BI-PX4S70VTR400-X423B-005-D"),
413 	{ "INT33F4", 0 },  /* X-Powers AXP288 PMIC */
429 	quirks = (unsigned long)dmi_id->driver_data;  in acpi_quirk_skip_i2c_client_enumeration()
451 		quirks = (unsigned long)dmi_id->driver_data;  in acpi_dmi_skip_serdev_enumeration()
466 			return -ENODEV; /* Create tty cdev instead of serdev */  in acpi_dmi_skip_serdev_enumeration()
484 	quirks = (unsigned long)dmi_id->driver_data;  in acpi_quirk_skip_gpio_event_handlers()
502 	 * The DELL0501 ACPI HID represents an UART (CID is set to PNP0501) with  in acpi_quirk_skip_serdev_enumeration()
503 	 * a backlight-controller attached. There is no separate ACPI device with  in acpi_quirk_skip_serdev_enumeration()
504 	 * an UartSerialBusV2() resource to model the backlight-controller.  in acpi_quirk_skip_serdev_enumeration()
511 		 * Create a platform dev for dell-uart-backlight to bind to.  in acpi_quirk_skip_serdev_enumeration()
514 		platform_device_register_simple("dell-uart-backlight", PLATFORM_DEVID_NONE,  in acpi_quirk_skip_serdev_enumeration()
525 	const char *hid;  member
528 	{ "INT33F4", -1 }, /* X-Powers AXP288 PMIC */
540 		quirks = (unsigned long)dmi_id->driver_data;  in acpi_quirk_skip_acpi_ac_and_battery()
549 		if (acpi_dev_present(acpi_skip_ac_and_battery_pmic_ids[i].hid, "1",  in acpi_quirk_skip_acpi_ac_and_battery()
552 				     acpi_skip_ac_and_battery_pmic_ids[i].hid);  in acpi_quirk_skip_acpi_ac_and_battery()
566 	pr_notice("%s detected - disabling mwait for CPU C-states\n",  in acpi_proc_quirk_set_no_mwait()
567 		  id->ident);  in acpi_proc_quirk_set_no_mwait()
591 	 * should not use mwait for CPU-states.  in acpi_proc_quirk_mwait_check()