acpi/x86/utils.c

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
31  * We work around this by using the below quirk list to override the status
37  * are re-used on different SoCs for completely different devices.
107 	 * but it is. In the 67000+ DMI decode dumps from linux-hardware.org
112 	 * was copy-pasted from the GPD win, so it has a disabled KIOX000A
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.
175 			if (acpi_get_name(adev->handle, ACPI_FULL_PATHNAME, &path))  in acpi_device_override_status()
201  * is put into D3 over a Modern Standby / suspend-to-idle cycle.
249  * serdev code to skip instantiating any I2C or serdev devs on broken boards.
252  * list. These are known to always be correct (and in case of the audio-codecs
258  * drivers/platform/x86/x86-android-tablets.c kernel module.
269 	 * 1. Devices with only the skip / don't-skip AC and battery quirks,
273 		/* ECS EF20EA, AXP288 PMIC but uses separate fuel-gauge */
280 		/* Lenovo Ideapad Miix 320, AXP288 PMIC, separate fuel-gauge */
284 			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"),
291 	 *    need the x86-android-tablets module to properly work.
295 		/* Acer Iconia One 7 B1-750 */
319 			DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "YETI-11"),
340 			DMI_MATCH(DMI_BOARD_NAME, "BYT-T FFD8"),
352 			DMI_MATCH(DMI_PRODUCT_VERSION, "Blade3-10A-001"),
394 			DMI_MATCH(DMI_BIOS_VERSION, "ZY-8-BI-PX4S70VTR400-X423B-005-D"),
407 	{ "INT33F4", 0 },  /* X-Powers AXP288 PMIC */
423 	quirks = (unsigned long)dmi_id->driver_data;  in acpi_quirk_skip_i2c_client_enumeration()
451 		quirks = (unsigned long)dmi_id->driver_data;  in acpi_quirk_skip_serdev_enumeration()
458 			return -ENODEV; /* Create tty cdev instead of serdev */  in acpi_quirk_skip_serdev_enumeration()
477 	quirks = (unsigned long)dmi_id->driver_data;  in acpi_quirk_skip_gpio_event_handlers()
488 	{ "INT33F4", -1 }, /* X-Powers AXP288 PMIC */
500 		quirks = (unsigned long)dmi_id->driver_data;  in acpi_quirk_skip_acpi_ac_and_battery()
526 	pr_notice("%s detected - disabling mwait for CPU C-states\n",  in acpi_proc_quirk_set_no_mwait()
527 		  id->ident);  in acpi_proc_quirk_set_no_mwait()
551 	 * should not use mwait for CPU-states.  in acpi_proc_quirk_mwait_check()