415 lines
14 KiB
C
415 lines
14 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* X86 ACPI Utility Functions
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*
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* Copyright (C) 2017 Hans de Goede <hdegoede@redhat.com>
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*
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* Based on various non upstream patches to support the CHT Whiskey Cove PMIC:
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* Copyright (C) 2013-2015 Intel Corporation. All rights reserved.
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*/
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#define pr_fmt(fmt) "ACPI: " fmt
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#include <linux/acpi.h>
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#include <linux/dmi.h>
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#include <linux/platform_device.h>
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#include <asm/cpu_device_id.h>
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#include <asm/intel-family.h>
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#include "../internal.h"
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/*
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* Some ACPI devices are hidden (status == 0x0) in recent BIOS-es because
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* some recent Windows drivers bind to one device but poke at multiple
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* devices at the same time, so the others get hidden.
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*
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* Some BIOS-es (temporarily) hide specific APCI devices to work around Windows
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* driver bugs. We use DMI matching to match known cases of this.
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*
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* Likewise sometimes some not-actually present devices are sometimes
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* reported as present, which may cause issues.
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*
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* We work around this by using the below quirk list to override the status
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* reported by the _STA method with a fixed value (ACPI_STA_DEFAULT or 0).
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* Note this MUST only be done for devices where this is safe.
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*
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* This status overriding is limited to specific CPU (SoC) models both to
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* avoid potentially causing trouble on other models and because some HIDs
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* are re-used on different SoCs for completely different devices.
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*/
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struct override_status_id {
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struct acpi_device_id hid[2];
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struct x86_cpu_id cpu_ids[2];
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struct dmi_system_id dmi_ids[2]; /* Optional */
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const char *uid;
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const char *path;
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unsigned long long status;
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};
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#define ENTRY(status, hid, uid, path, cpu_model, dmi...) { \
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{ { hid, }, {} }, \
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{ X86_MATCH_INTEL_FAM6_MODEL(cpu_model, NULL), {} }, \
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{ { .matches = dmi }, {} }, \
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uid, \
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path, \
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status, \
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}
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#define PRESENT_ENTRY_HID(hid, uid, cpu_model, dmi...) \
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ENTRY(ACPI_STA_DEFAULT, hid, uid, NULL, cpu_model, dmi)
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#define NOT_PRESENT_ENTRY_HID(hid, uid, cpu_model, dmi...) \
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ENTRY(0, hid, uid, NULL, cpu_model, dmi)
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#define PRESENT_ENTRY_PATH(path, cpu_model, dmi...) \
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ENTRY(ACPI_STA_DEFAULT, "", NULL, path, cpu_model, dmi)
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#define NOT_PRESENT_ENTRY_PATH(path, cpu_model, dmi...) \
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ENTRY(0, "", NULL, path, cpu_model, dmi)
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static const struct override_status_id override_status_ids[] = {
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/*
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* Bay / Cherry Trail PWM directly poked by GPU driver in win10,
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* but Linux uses a separate PWM driver, harmless if not used.
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*/
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PRESENT_ENTRY_HID("80860F09", "1", ATOM_SILVERMONT, {}),
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PRESENT_ENTRY_HID("80862288", "1", ATOM_AIRMONT, {}),
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/* The Xiaomi Mi Pad 2 uses PWM2 for touchkeys backlight control */
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PRESENT_ENTRY_HID("80862289", "2", ATOM_AIRMONT, {
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DMI_MATCH(DMI_SYS_VENDOR, "Xiaomi Inc"),
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DMI_MATCH(DMI_PRODUCT_NAME, "Mipad2"),
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}),
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/*
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* The INT0002 device is necessary to clear wakeup interrupt sources
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* on Cherry Trail devices, without it we get nobody cared IRQ msgs.
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*/
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PRESENT_ENTRY_HID("INT0002", "1", ATOM_AIRMONT, {}),
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/*
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* On the Dell Venue 11 Pro 7130 and 7139, the DSDT hides
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* the touchscreen ACPI device until a certain time
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* after _SB.PCI0.GFX0.LCD.LCD1._ON gets called has passed
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* *and* _STA has been called at least 3 times since.
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*/
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PRESENT_ENTRY_HID("SYNA7500", "1", HASWELL_L, {
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DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
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DMI_MATCH(DMI_PRODUCT_NAME, "Venue 11 Pro 7130"),
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}),
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PRESENT_ENTRY_HID("SYNA7500", "1", HASWELL_L, {
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DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
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DMI_MATCH(DMI_PRODUCT_NAME, "Venue 11 Pro 7139"),
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}),
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/*
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* The GPD win BIOS dated 20170221 has disabled the accelerometer, the
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* drivers sometimes cause crashes under Windows and this is how the
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* manufacturer has solved this :| The DMI match may not seem unique,
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* but it is. In the 67000+ DMI decode dumps from linux-hardware.org
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* only 116 have board_vendor set to "AMI Corporation" and of those 116
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* only the GPD win and pocket entries' board_name is "Default string".
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*
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* Unfortunately the GPD pocket also uses these strings and its BIOS
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* was copy-pasted from the GPD win, so it has a disabled KIOX000A
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* node which we should not enable, thus we also check the BIOS date.
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*/
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PRESENT_ENTRY_HID("KIOX000A", "1", ATOM_AIRMONT, {
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DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
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DMI_MATCH(DMI_BOARD_NAME, "Default string"),
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DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
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DMI_MATCH(DMI_BIOS_DATE, "02/21/2017")
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}),
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PRESENT_ENTRY_HID("KIOX000A", "1", ATOM_AIRMONT, {
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DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
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DMI_MATCH(DMI_BOARD_NAME, "Default string"),
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DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
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DMI_MATCH(DMI_BIOS_DATE, "03/20/2017")
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}),
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PRESENT_ENTRY_HID("KIOX000A", "1", ATOM_AIRMONT, {
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DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
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DMI_MATCH(DMI_BOARD_NAME, "Default string"),
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DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
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DMI_MATCH(DMI_BIOS_DATE, "05/25/2017")
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}),
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/*
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* The GPD win/pocket have a PCI wifi card, but its DSDT has the SDIO
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* mmc controller enabled and that has a child-device which _PS3
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* method sets a GPIO causing the PCI wifi card to turn off.
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* See above remark about uniqueness of the DMI match.
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*/
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NOT_PRESENT_ENTRY_PATH("\\_SB_.PCI0.SDHB.BRC1", ATOM_AIRMONT, {
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DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
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DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
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DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"),
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DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
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}),
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};
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bool acpi_device_override_status(struct acpi_device *adev, unsigned long long *status)
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{
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bool ret = false;
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unsigned int i;
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for (i = 0; i < ARRAY_SIZE(override_status_ids); i++) {
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if (!x86_match_cpu(override_status_ids[i].cpu_ids))
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continue;
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if (override_status_ids[i].dmi_ids[0].matches[0].slot &&
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!dmi_check_system(override_status_ids[i].dmi_ids))
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continue;
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if (override_status_ids[i].path) {
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struct acpi_buffer path = { ACPI_ALLOCATE_BUFFER, NULL };
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bool match;
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if (acpi_get_name(adev->handle, ACPI_FULL_PATHNAME, &path))
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continue;
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match = strcmp((char *)path.pointer, override_status_ids[i].path) == 0;
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kfree(path.pointer);
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if (!match)
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continue;
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} else {
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if (acpi_match_device_ids(adev, override_status_ids[i].hid))
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continue;
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if (!adev->pnp.unique_id ||
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strcmp(adev->pnp.unique_id, override_status_ids[i].uid))
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continue;
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}
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*status = override_status_ids[i].status;
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ret = true;
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break;
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}
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return ret;
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}
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/*
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* AMD systems from Renoir and Lucienne *require* that the NVME controller
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* is put into D3 over a Modern Standby / suspend-to-idle cycle.
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*
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* This is "typically" accomplished using the `StorageD3Enable`
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* property in the _DSD that is checked via the `acpi_storage_d3` function
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* but this property was introduced after many of these systems launched
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* and most OEM systems don't have it in their BIOS.
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*
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* The Microsoft documentation for StorageD3Enable mentioned that Windows has
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* a hardcoded allowlist for D3 support, which was used for these platforms.
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*
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* This allows quirking on Linux in a similar fashion.
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*/
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static const struct x86_cpu_id storage_d3_cpu_ids[] = {
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X86_MATCH_VENDOR_FAM_MODEL(AMD, 23, 96, NULL), /* Renoir */
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X86_MATCH_VENDOR_FAM_MODEL(AMD, 23, 104, NULL), /* Lucienne */
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{}
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};
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bool force_storage_d3(void)
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{
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return x86_match_cpu(storage_d3_cpu_ids);
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}
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/*
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* x86 ACPI boards which ship with only Android as their factory image usually
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* declare a whole bunch of bogus I2C devices in their ACPI tables and sometimes
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* there are issues with serdev devices on these boards too, e.g. the resource
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* points to the wrong serdev_controller.
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*
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* Instantiating I2C / serdev devs for these bogus devs causes various issues,
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* e.g. GPIO/IRQ resource conflicts because sometimes drivers do bind to them.
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* The Android x86 kernel fork shipped on these devices has some special code
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* to remove the bogus I2C clients (and AFAICT serdevs are ignored completely).
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*
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* The acpi_quirk_skip_*_enumeration() functions below are used by the I2C or
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* serdev code to skip instantiating any I2C or serdev devs on broken boards.
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*
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* In case of I2C an exception is made for HIDs on the i2c_acpi_known_good_ids
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* list. These are known to always be correct (and in case of the audio-codecs
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* the drivers heavily rely on the codec being enumerated through ACPI).
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*
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* Note these boards typically do actually have I2C and serdev devices,
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* just different ones then the ones described in their DSDT. The devices
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* which are actually present are manually instantiated by the
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* drivers/platform/x86/x86-android-tablets.c kernel module.
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*/
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#define ACPI_QUIRK_SKIP_I2C_CLIENTS BIT(0)
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#define ACPI_QUIRK_UART1_TTY_UART2_SKIP BIT(1)
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#define ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY BIT(2)
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#define ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY BIT(3)
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static const struct dmi_system_id acpi_quirk_skip_dmi_ids[] = {
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/*
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* 1. Devices with only the skip / don't-skip AC and battery quirks,
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* sorted alphabetically.
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*/
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{
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/* ECS EF20EA, AXP288 PMIC but uses separate fuel-gauge */
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.matches = {
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DMI_MATCH(DMI_PRODUCT_NAME, "EF20EA"),
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},
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.driver_data = (void *)ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY
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},
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{
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/* Lenovo Ideapad Miix 320, AXP288 PMIC, separate fuel-gauge */
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
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DMI_MATCH(DMI_PRODUCT_NAME, "80XF"),
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DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"),
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},
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.driver_data = (void *)ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY
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},
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/*
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* 2. Devices which also have the skip i2c/serdev quirks and which
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* need the x86-android-tablets module to properly work.
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*/
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#if IS_ENABLED(CONFIG_X86_ANDROID_TABLETS)
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{
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.matches = {
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DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
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DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "ME176C"),
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},
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.driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
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ACPI_QUIRK_UART1_TTY_UART2_SKIP |
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ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
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},
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{
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
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DMI_MATCH(DMI_PRODUCT_NAME, "TF103C"),
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},
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.driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
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ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
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},
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{
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/* Lenovo Yoga Tablet 1050F/L */
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Intel Corp."),
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DMI_MATCH(DMI_PRODUCT_NAME, "VALLEYVIEW C0 PLATFORM"),
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DMI_MATCH(DMI_BOARD_NAME, "BYT-T FFD8"),
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/* Partial match on beginning of BIOS version */
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DMI_MATCH(DMI_BIOS_VERSION, "BLADE_21"),
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},
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.driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
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ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
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},
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{
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/* Nextbook Ares 8 */
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
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DMI_MATCH(DMI_PRODUCT_NAME, "M890BAP"),
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},
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.driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
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ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
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},
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{
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/* Whitelabel (sold as various brands) TM800A550L */
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.matches = {
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DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
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DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
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/* Above strings are too generic, also match on BIOS version */
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DMI_MATCH(DMI_BIOS_VERSION, "ZY-8-BI-PX4S70VTR400-X423B-005-D"),
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},
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.driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
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ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
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},
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#endif
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{}
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};
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#if IS_ENABLED(CONFIG_X86_ANDROID_TABLETS)
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static const struct acpi_device_id i2c_acpi_known_good_ids[] = {
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{ "10EC5640", 0 }, /* RealTek ALC5640 audio codec */
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{ "INT33F4", 0 }, /* X-Powers AXP288 PMIC */
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{ "INT33FD", 0 }, /* Intel Crystal Cove PMIC */
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{ "NPCE69A", 0 }, /* Asus Transformer keyboard dock */
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{}
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};
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bool acpi_quirk_skip_i2c_client_enumeration(struct acpi_device *adev)
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{
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const struct dmi_system_id *dmi_id;
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long quirks;
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dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids);
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if (!dmi_id)
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return false;
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quirks = (unsigned long)dmi_id->driver_data;
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if (!(quirks & ACPI_QUIRK_SKIP_I2C_CLIENTS))
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return false;
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return acpi_match_device_ids(adev, i2c_acpi_known_good_ids);
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}
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EXPORT_SYMBOL_GPL(acpi_quirk_skip_i2c_client_enumeration);
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int acpi_quirk_skip_serdev_enumeration(struct device *controller_parent, bool *skip)
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{
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struct acpi_device *adev = ACPI_COMPANION(controller_parent);
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const struct dmi_system_id *dmi_id;
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long quirks = 0;
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*skip = false;
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/* !dev_is_platform() to not match on PNP enumerated debug UARTs */
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if (!adev || !adev->pnp.unique_id || !dev_is_platform(controller_parent))
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return 0;
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dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids);
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if (dmi_id)
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quirks = (unsigned long)dmi_id->driver_data;
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if (quirks & ACPI_QUIRK_UART1_TTY_UART2_SKIP) {
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if (!strcmp(adev->pnp.unique_id, "1"))
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return -ENODEV; /* Create tty cdev instead of serdev */
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if (!strcmp(adev->pnp.unique_id, "2"))
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*skip = true;
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}
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return 0;
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}
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EXPORT_SYMBOL_GPL(acpi_quirk_skip_serdev_enumeration);
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#endif
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/* Lists of PMIC ACPI HIDs with an (often better) native charger driver */
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static const struct {
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const char *hid;
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int hrv;
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} acpi_skip_ac_and_battery_pmic_ids[] = {
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{ "INT33F4", -1 }, /* X-Powers AXP288 PMIC */
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{ "INT34D3", 3 }, /* Intel Cherrytrail Whiskey Cove PMIC */
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};
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bool acpi_quirk_skip_acpi_ac_and_battery(void)
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{
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const struct dmi_system_id *dmi_id;
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long quirks = 0;
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int i;
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dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids);
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if (dmi_id)
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quirks = (unsigned long)dmi_id->driver_data;
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if (quirks & ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY)
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return true;
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if (quirks & ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY)
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return false;
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for (i = 0; i < ARRAY_SIZE(acpi_skip_ac_and_battery_pmic_ids); i++) {
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if (acpi_dev_present(acpi_skip_ac_and_battery_pmic_ids[i].hid, "1",
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acpi_skip_ac_and_battery_pmic_ids[i].hrv)) {
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pr_info_once("found native %s PMIC, skipping ACPI AC and battery devices\n",
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acpi_skip_ac_and_battery_pmic_ids[i].hid);
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return true;
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}
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}
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return false;
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}
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EXPORT_SYMBOL_GPL(acpi_quirk_skip_acpi_ac_and_battery);
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