From d431dfb764b145369be820fcdfd50f2159b9bbc2 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Mon, 22 Nov 2021 18:05:30 +0100 Subject: ACPI / x86: Drop PWM2 device on Lenovo Yoga Book from always present table It turns out that there is a WMI object which controls the PWM2 device used for the keyboard backlight and that WMI object also provides some other useful functionality. The upcoming lenovo-yogabook-wmi driver will offer both backlight control and the other functionality, so there no longer is a need to have the lpss-pwm driver binding to PWM2 for backlight control; and this is now actually undesirable because this will cause both the WMI code and the lpss-pwm driver to poke at the same PWM controller. Drop the always-present quirk for the PWM2 ACPI-device, so that the lpss-pwm controller will no longer bind to it. Signed-off-by: Hans de Goede Signed-off-by: Rafael J. Wysocki --- drivers/acpi/x86/utils.c | 4 ---- 1 file changed, 4 deletions(-) (limited to 'drivers/acpi/x86/utils.c') diff --git a/drivers/acpi/x86/utils.c b/drivers/acpi/x86/utils.c index f22f23933063..3bcac98f6eca 100644 --- a/drivers/acpi/x86/utils.c +++ b/drivers/acpi/x86/utils.c @@ -54,10 +54,6 @@ static const struct always_present_id always_present_ids[] = { ENTRY("80860F09", "1", X86_MATCH(ATOM_SILVERMONT), {}), ENTRY("80862288", "1", X86_MATCH(ATOM_AIRMONT), {}), - /* Lenovo Yoga Book uses PWM2 for keyboard backlight control */ - ENTRY("80862289", "2", X86_MATCH(ATOM_AIRMONT), { - DMI_MATCH(DMI_PRODUCT_NAME, "Lenovo YB1-X9"), - }), /* * The INT0002 device is necessary to clear wakeup interrupt sources * on Cherry Trail devices, without it we get nobody cared IRQ msgs. -- cgit v1.2.3-70-g09d2 From 1a68b346a2c9969c05e80a3b99a9ab160b5655c0 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Mon, 22 Nov 2021 18:05:31 +0100 Subject: ACPI: Change acpi_device_always_present() into acpi_device_override_status() Currently, acpi_bus_get_status() calls acpi_device_always_present() to allow platform quirks to override the _STA return to report that a device is present (status = ACPI_STA_DEFAULT) independent of the _STA return. In some cases it might also be useful to have the opposite functionality and have a platform quirk which marks a device as not present (status = 0) to work around ACPI table bugs. Change acpi_device_always_present() into a more generic acpi_device_override_status() function to allow this. Signed-off-by: Hans de Goede Signed-off-by: Rafael J. Wysocki --- drivers/acpi/bus.c | 4 +-- drivers/acpi/x86/utils.c | 64 ++++++++++++++++++++++++++++-------------------- include/acpi/acpi_bus.h | 5 ++-- 3 files changed, 42 insertions(+), 31 deletions(-) (limited to 'drivers/acpi/x86/utils.c') diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index fa923a929224..dd535b4b9a16 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -98,8 +98,8 @@ int acpi_bus_get_status(struct acpi_device *device) acpi_status status; unsigned long long sta; - if (acpi_device_always_present(device)) { - acpi_set_device_status(device, ACPI_STA_DEFAULT); + if (acpi_device_override_status(device, &sta)) { + acpi_set_device_status(device, sta); return 0; } diff --git a/drivers/acpi/x86/utils.c b/drivers/acpi/x86/utils.c index 3bcac98f6eca..edb4f3fd93dc 100644 --- a/drivers/acpi/x86/utils.c +++ b/drivers/acpi/x86/utils.c @@ -22,54 +22,63 @@ * Some BIOS-es (temporarily) hide specific APCI devices to work around Windows * driver bugs. We use DMI matching to match known cases of this. * - * We work around this by always reporting ACPI_STA_DEFAULT for these - * devices. Note this MUST only be done for devices where this is safe. + * Likewise sometimes some not-actually present devices are sometimes + * reported as present, which may cause issues. * - * This forcing of devices to be present is limited to specific CPU (SoC) - * models both to avoid potentially causing trouble on other models and - * because some HIDs are re-used on different SoCs for completely - * different devices. + * We work around this by using the below quirk list to override the status + * reported by the _STA method with a fixed value (ACPI_STA_DEFAULT or 0). + * Note this MUST only be done for devices where this is safe. + * + * This status overriding is limited to specific CPU (SoC) models both to + * avoid potentially causing trouble on other models and because some HIDs + * are re-used on different SoCs for completely different devices. */ -struct always_present_id { +struct override_status_id { struct acpi_device_id hid[2]; struct x86_cpu_id cpu_ids[2]; struct dmi_system_id dmi_ids[2]; /* Optional */ const char *uid; + unsigned long long status; }; -#define X86_MATCH(model) X86_MATCH_INTEL_FAM6_MODEL(model, NULL) - -#define ENTRY(hid, uid, cpu_models, dmi...) { \ +#define ENTRY(status, hid, uid, cpu_model, dmi...) { \ { { hid, }, {} }, \ - { cpu_models, {} }, \ + { X86_MATCH_INTEL_FAM6_MODEL(cpu_model, NULL), {} }, \ { { .matches = dmi }, {} }, \ uid, \ + status, \ } -static const struct always_present_id always_present_ids[] = { +#define PRESENT_ENTRY_HID(hid, uid, cpu_model, dmi...) \ + ENTRY(ACPI_STA_DEFAULT, hid, uid, cpu_model, dmi) + +#define NOT_PRESENT_ENTRY_HID(hid, uid, cpu_model, dmi...) \ + ENTRY(0, hid, uid, cpu_model, dmi) + +static const struct override_status_id override_status_ids[] = { /* * Bay / Cherry Trail PWM directly poked by GPU driver in win10, * but Linux uses a separate PWM driver, harmless if not used. */ - ENTRY("80860F09", "1", X86_MATCH(ATOM_SILVERMONT), {}), - ENTRY("80862288", "1", X86_MATCH(ATOM_AIRMONT), {}), + PRESENT_ENTRY_HID("80860F09", "1", ATOM_SILVERMONT, {}), + PRESENT_ENTRY_HID("80862288", "1", ATOM_AIRMONT, {}), /* * The INT0002 device is necessary to clear wakeup interrupt sources * on Cherry Trail devices, without it we get nobody cared IRQ msgs. */ - ENTRY("INT0002", "1", X86_MATCH(ATOM_AIRMONT), {}), + PRESENT_ENTRY_HID("INT0002", "1", ATOM_AIRMONT, {}), /* * On the Dell Venue 11 Pro 7130 and 7139, the DSDT hides * the touchscreen ACPI device until a certain time * after _SB.PCI0.GFX0.LCD.LCD1._ON gets called has passed * *and* _STA has been called at least 3 times since. */ - ENTRY("SYNA7500", "1", X86_MATCH(HASWELL_L), { + PRESENT_ENTRY_HID("SYNA7500", "1", HASWELL_L, { DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), DMI_MATCH(DMI_PRODUCT_NAME, "Venue 11 Pro 7130"), }), - ENTRY("SYNA7500", "1", X86_MATCH(HASWELL_L), { + PRESENT_ENTRY_HID("SYNA7500", "1", HASWELL_L, { DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), DMI_MATCH(DMI_PRODUCT_NAME, "Venue 11 Pro 7139"), }), @@ -85,19 +94,19 @@ static const struct always_present_id always_present_ids[] = { * was copy-pasted from the GPD win, so it has a disabled KIOX000A * node which we should not enable, thus we also check the BIOS date. */ - ENTRY("KIOX000A", "1", X86_MATCH(ATOM_AIRMONT), { + PRESENT_ENTRY_HID("KIOX000A", "1", ATOM_AIRMONT, { DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), DMI_MATCH(DMI_BOARD_NAME, "Default string"), DMI_MATCH(DMI_PRODUCT_NAME, "Default string"), DMI_MATCH(DMI_BIOS_DATE, "02/21/2017") }), - ENTRY("KIOX000A", "1", X86_MATCH(ATOM_AIRMONT), { + PRESENT_ENTRY_HID("KIOX000A", "1", ATOM_AIRMONT, { DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), DMI_MATCH(DMI_BOARD_NAME, "Default string"), DMI_MATCH(DMI_PRODUCT_NAME, "Default string"), DMI_MATCH(DMI_BIOS_DATE, "03/20/2017") }), - ENTRY("KIOX000A", "1", X86_MATCH(ATOM_AIRMONT), { + PRESENT_ENTRY_HID("KIOX000A", "1", ATOM_AIRMONT, { DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), DMI_MATCH(DMI_BOARD_NAME, "Default string"), DMI_MATCH(DMI_PRODUCT_NAME, "Default string"), @@ -105,26 +114,27 @@ static const struct always_present_id always_present_ids[] = { }), }; -bool acpi_device_always_present(struct acpi_device *adev) +bool acpi_device_override_status(struct acpi_device *adev, unsigned long long *status) { bool ret = false; unsigned int i; - for (i = 0; i < ARRAY_SIZE(always_present_ids); i++) { - if (acpi_match_device_ids(adev, always_present_ids[i].hid)) + for (i = 0; i < ARRAY_SIZE(override_status_ids); i++) { + if (acpi_match_device_ids(adev, override_status_ids[i].hid)) continue; if (!adev->pnp.unique_id || - strcmp(adev->pnp.unique_id, always_present_ids[i].uid)) + strcmp(adev->pnp.unique_id, override_status_ids[i].uid)) continue; - if (!x86_match_cpu(always_present_ids[i].cpu_ids)) + if (!x86_match_cpu(override_status_ids[i].cpu_ids)) continue; - if (always_present_ids[i].dmi_ids[0].matches[0].slot && - !dmi_check_system(always_present_ids[i].dmi_ids)) + if (override_status_ids[i].dmi_ids[0].matches[0].slot && + !dmi_check_system(override_status_ids[i].dmi_ids)) continue; + *status = override_status_ids[i].status; ret = true; break; } diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index 480f9207a4c6..d6fe27b695c3 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -613,9 +613,10 @@ int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state); int acpi_disable_wakeup_device_power(struct acpi_device *dev); #ifdef CONFIG_X86 -bool acpi_device_always_present(struct acpi_device *adev); +bool acpi_device_override_status(struct acpi_device *adev, unsigned long long *status); #else -static inline bool acpi_device_always_present(struct acpi_device *adev) +static inline bool acpi_device_override_status(struct acpi_device *adev, + unsigned long long *status) { return false; } -- cgit v1.2.3-70-g09d2 From ba46e42e925b5d09b4e441f8de3db119cc7df58f Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Mon, 22 Nov 2021 18:05:32 +0100 Subject: ACPI / x86: Allow specifying acpi_device_override_status() quirks by path Not all ACPI-devices have a HID + UID, allow specifying quirks for acpi_device_override_status() by path too. Note this moves the path/HID+UID check to after the CPU + DMI checks since the path lookup is somewhat costly. This way this lookup is only done on devices where the other checks match. Signed-off-by: Hans de Goede Signed-off-by: Rafael J. Wysocki --- drivers/acpi/x86/utils.c | 42 ++++++++++++++++++++++++++++++++---------- 1 file changed, 32 insertions(+), 10 deletions(-) (limited to 'drivers/acpi/x86/utils.c') diff --git a/drivers/acpi/x86/utils.c b/drivers/acpi/x86/utils.c index edb4f3fd93dc..190bfc2ab3f2 100644 --- a/drivers/acpi/x86/utils.c +++ b/drivers/acpi/x86/utils.c @@ -38,22 +38,30 @@ struct override_status_id { struct x86_cpu_id cpu_ids[2]; struct dmi_system_id dmi_ids[2]; /* Optional */ const char *uid; + const char *path; unsigned long long status; }; -#define ENTRY(status, hid, uid, cpu_model, dmi...) { \ +#define ENTRY(status, hid, uid, path, cpu_model, dmi...) { \ { { hid, }, {} }, \ { X86_MATCH_INTEL_FAM6_MODEL(cpu_model, NULL), {} }, \ { { .matches = dmi }, {} }, \ uid, \ + path, \ status, \ } #define PRESENT_ENTRY_HID(hid, uid, cpu_model, dmi...) \ - ENTRY(ACPI_STA_DEFAULT, hid, uid, cpu_model, dmi) + ENTRY(ACPI_STA_DEFAULT, hid, uid, NULL, cpu_model, dmi) #define NOT_PRESENT_ENTRY_HID(hid, uid, cpu_model, dmi...) \ - ENTRY(0, hid, uid, cpu_model, dmi) + ENTRY(0, hid, uid, NULL, cpu_model, dmi) + +#define PRESENT_ENTRY_PATH(path, cpu_model, dmi...) \ + ENTRY(ACPI_STA_DEFAULT, "", NULL, path, cpu_model, dmi) + +#define NOT_PRESENT_ENTRY_PATH(path, cpu_model, dmi...) \ + ENTRY(0, "", NULL, path, cpu_model, dmi) static const struct override_status_id override_status_ids[] = { /* @@ -120,13 +128,6 @@ bool acpi_device_override_status(struct acpi_device *adev, unsigned long long *s unsigned int i; for (i = 0; i < ARRAY_SIZE(override_status_ids); i++) { - if (acpi_match_device_ids(adev, override_status_ids[i].hid)) - continue; - - if (!adev->pnp.unique_id || - strcmp(adev->pnp.unique_id, override_status_ids[i].uid)) - continue; - if (!x86_match_cpu(override_status_ids[i].cpu_ids)) continue; @@ -134,6 +135,27 @@ bool acpi_device_override_status(struct acpi_device *adev, unsigned long long *s !dmi_check_system(override_status_ids[i].dmi_ids)) continue; + if (override_status_ids[i].path) { + struct acpi_buffer path = { ACPI_ALLOCATE_BUFFER, NULL }; + bool match; + + if (acpi_get_name(adev->handle, ACPI_FULL_PATHNAME, &path)) + continue; + + match = strcmp((char *)path.pointer, override_status_ids[i].path) == 0; + kfree(path.pointer); + + if (!match) + continue; + } else { + if (acpi_match_device_ids(adev, override_status_ids[i].hid)) + continue; + + if (!adev->pnp.unique_id || + strcmp(adev->pnp.unique_id, override_status_ids[i].uid)) + continue; + } + *status = override_status_ids[i].status; ret = true; break; -- cgit v1.2.3-70-g09d2 From 57d2dbf710d832841872fb15ebb79429cab90fae Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Mon, 22 Nov 2021 18:05:33 +0100 Subject: ACPI / x86: Add not-present quirk for the PCI0.SDHB.BRC1 device on the GPD win The GPD win and its sibling the GPD pocket (99% the same electronics in a different case) use a PCI wifi card. But the ACPI tables on both variants contain a bug where the SDIO MMC controller for SDIO wifi cards is enabled despite this. This SDIO MMC controller has a PCI0.SDHB.BRC1 child-device which _PS3 method sets a GPIO causing the PCI wifi card to turn off. At the moment there is a pretty ugly kludge in the sdhci-acpi.c code, just to work around the bug in the DSDT of this single design. This can be solved cleaner/simply with a quirk overriding the _STA return of the broken PCI0.SDHB.BRC1 PCI0.SDHB.BRC1 child with a status value of 0, so that its power_manageable flag gets cleared, avoiding this problem. Note that even though it is not used, the _STA method for the MMC controller is deliberately not overridden. If the status of the MMC controller were forced to 0 it would never get suspended, which would cause these mini-laptops to not reach S0i3 level when suspended. Signed-off-by: Hans de Goede Signed-off-by: Rafael J. Wysocki --- drivers/acpi/x86/utils.c | 20 +++++++++++++++++--- 1 file changed, 17 insertions(+), 3 deletions(-) (limited to 'drivers/acpi/x86/utils.c') diff --git a/drivers/acpi/x86/utils.c b/drivers/acpi/x86/utils.c index 190bfc2ab3f2..b3fb428461c6 100644 --- a/drivers/acpi/x86/utils.c +++ b/drivers/acpi/x86/utils.c @@ -94,9 +94,10 @@ static const struct override_status_id override_status_ids[] = { /* * The GPD win BIOS dated 20170221 has disabled the accelerometer, the * drivers sometimes cause crashes under Windows and this is how the - * manufacturer has solved this :| Note that the the DMI data is less - * generic then it seems, a board_vendor of "AMI Corporation" is quite - * rare and a board_name of "Default String" also is rare. + * manufacturer has solved this :| The DMI match may not seem unique, + * but it is. In the 67000+ DMI decode dumps from linux-hardware.org + * only 116 have board_vendor set to "AMI Corporation" and of those 116 + * only the GPD win and pocket entries' board_name is "Default string". * * Unfortunately the GPD pocket also uses these strings and its BIOS * was copy-pasted from the GPD win, so it has a disabled KIOX000A @@ -120,6 +121,19 @@ static const struct override_status_id override_status_ids[] = { DMI_MATCH(DMI_PRODUCT_NAME, "Default string"), DMI_MATCH(DMI_BIOS_DATE, "05/25/2017") }), + + /* + * The GPD win/pocket have a PCI wifi card, but its DSDT has the SDIO + * mmc controller enabled and that has a child-device which _PS3 + * method sets a GPIO causing the PCI wifi card to turn off. + * See above remark about uniqueness of the DMI match. + */ + NOT_PRESENT_ENTRY_PATH("\\_SB_.PCI0.SDHB.BRC1", ATOM_AIRMONT, { + DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), + DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"), + DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"), + DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"), + }), }; bool acpi_device_override_status(struct acpi_device *adev, unsigned long long *status) -- cgit v1.2.3-70-g09d2 From b72cd8e0fa34d5491232c64b88e3eda35436eb57 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Mon, 22 Nov 2021 18:05:34 +0100 Subject: ACPI / x86: Add PWM2 on the Xiaomi Mi Pad 2 to the always_present list The Xiaomi Mi Pad 2 has backlit LEDs behind the capacitive menu, home and back buttons below the screen which are controlled by the PWM2 controller of the CHT SoC. This PWM2 controller gets hidden by the firmware, add it to the always_present_ids table so that we can use the PWM controller to control the backlighting of the buttons. Signed-off-by: Hans de Goede Signed-off-by: Rafael J. Wysocki --- drivers/acpi/x86/utils.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/acpi/x86/utils.c') diff --git a/drivers/acpi/x86/utils.c b/drivers/acpi/x86/utils.c index b3fb428461c6..a2ae1ac41319 100644 --- a/drivers/acpi/x86/utils.c +++ b/drivers/acpi/x86/utils.c @@ -71,6 +71,12 @@ static const struct override_status_id override_status_ids[] = { PRESENT_ENTRY_HID("80860F09", "1", ATOM_SILVERMONT, {}), PRESENT_ENTRY_HID("80862288", "1", ATOM_AIRMONT, {}), + /* The Xiaomi Mi Pad 2 uses PWM2 for touchkeys backlight control */ + PRESENT_ENTRY_HID("80862289", "2", ATOM_AIRMONT, { + DMI_MATCH(DMI_SYS_VENDOR, "Xiaomi Inc"), + DMI_MATCH(DMI_PRODUCT_NAME, "Mipad2"), + }), + /* * The INT0002 device is necessary to clear wakeup interrupt sources * on Cherry Trail devices, without it we get nobody cared IRQ msgs. -- cgit v1.2.3-70-g09d2 From 35f9e773bb883a1be87410570f92c8c438e0478b Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Thu, 30 Dec 2021 15:17:20 +0100 Subject: ACPI / x86: Add acpi_quirk_skip_[i2c_client|serdev]_enumeration() helpers x86 ACPI boards which ship with only Android as their factory image usually declare a whole bunch of bogus I2C devs in their ACPI tables and sometimes there are issues with serdev devices on these boards too, e.g. the resource points to the wrong serdev_controller. Instantiating I2C / serdev devs for these bogus devs causes various issues, e.g. GPIO/IRQ resource conflicts because sometimes drivers do bind to them. The Android x86 kernel fork shipped on these devices has some special code to remove the bogus I2C clients (and serdevs are ignored completely). Introduce acpi_quirk_skip_i2c_client_enumeration() and acpi_quirk_skip_serdev_enumeration() helpers. Which can be used by the I2C/ serdev code to skip instantiating any I2C or serdev devs on broken boards. These 2 helpers are added to drivers/acpi/x86/utils.c so that the DMI table can be shared between the I2C and serdev code. Note these boards typically do actually have I2C and serdev devices, just different ones then the ones described in their DSDT. The devices which are actually present are manually instantiated by the drivers/platform/x86/x86-android-tablets.c kernel module. The new helpers are only build if CONFIG_X86_ANDROID_TABLETS is enabled, otherwise they are empty stubs to not unnecessarily grow the kernel size. Signed-off-by: Hans de Goede Signed-off-by: Rafael J. Wysocki --- drivers/acpi/x86/utils.c | 111 +++++++++++++++++++++++++++++++++++++++++++++++ include/acpi/acpi_bus.h | 16 +++++++ 2 files changed, 127 insertions(+) (limited to 'drivers/acpi/x86/utils.c') diff --git a/drivers/acpi/x86/utils.c b/drivers/acpi/x86/utils.c index f22f23933063..ef9ee8bbe4e6 100644 --- a/drivers/acpi/x86/utils.c +++ b/drivers/acpi/x86/utils.c @@ -10,6 +10,7 @@ #include #include +#include #include #include #include "../internal.h" @@ -160,3 +161,113 @@ bool force_storage_d3(void) { return x86_match_cpu(storage_d3_cpu_ids); } + +#if IS_ENABLED(CONFIG_X86_ANDROID_TABLETS) +/* + * x86 ACPI boards which ship with only Android as their factory image usually + * declare a whole bunch of bogus I2C devices in their ACPI tables and sometimes + * there are issues with serdev devices on these boards too, e.g. the resource + * points to the wrong serdev_controller. + * + * Instantiating I2C / serdev devs for these bogus devs causes various issues, + * e.g. GPIO/IRQ resource conflicts because sometimes drivers do bind to them. + * The Android x86 kernel fork shipped on these devices has some special code + * to remove the bogus I2C clients (and AFAICT serdevs are ignored completely). + * + * The acpi_quirk_skip_*_enumeration() functions below are used by the I2C or + * serdev code to skip instantiating any I2C or serdev devs on broken boards. + * + * In case of I2C an exception is made for HIDs on the i2c_acpi_known_good_ids + * list. These are known to always be correct (and in case of the audio-codecs + * the drivers heavily rely on the codec being enumerated through ACPI). + * + * Note these boards typically do actually have I2C and serdev devices, + * just different ones then the ones described in their DSDT. The devices + * which are actually present are manually instantiated by the + * drivers/platform/x86/x86-android-tablets.c kernel module. + */ +#define ACPI_QUIRK_SKIP_I2C_CLIENTS BIT(0) +#define ACPI_QUIRK_UART1_TTY_UART2_SKIP BIT(1) + +static const struct dmi_system_id acpi_skip_serial_bus_enumeration_ids[] = { + { + .matches = { + DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), + DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "ME176C"), + }, + .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS | + ACPI_QUIRK_UART1_TTY_UART2_SKIP), + }, + { + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), + DMI_MATCH(DMI_PRODUCT_NAME, "TF103C"), + }, + .driver_data = (void *)ACPI_QUIRK_SKIP_I2C_CLIENTS, + }, + { + /* Whitelabel (sold as various brands) TM800A550L */ + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), + DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"), + /* Above strings are too generic, also match on BIOS version */ + DMI_MATCH(DMI_BIOS_VERSION, "ZY-8-BI-PX4S70VTR400-X423B-005-D"), + }, + .driver_data = (void *)ACPI_QUIRK_SKIP_I2C_CLIENTS, + }, + {} +}; + +static const struct acpi_device_id i2c_acpi_known_good_ids[] = { + { "10EC5640", 0 }, /* RealTek ALC5640 audio codec */ + { "INT33F4", 0 }, /* X-Powers AXP288 PMIC */ + { "INT33FD", 0 }, /* Intel Crystal Cove PMIC */ + { "NPCE69A", 0 }, /* Asus Transformer keyboard dock */ + {} +}; + +bool acpi_quirk_skip_i2c_client_enumeration(struct acpi_device *adev) +{ + const struct dmi_system_id *dmi_id; + long quirks; + + dmi_id = dmi_first_match(acpi_skip_serial_bus_enumeration_ids); + if (!dmi_id) + return false; + + quirks = (unsigned long)dmi_id->driver_data; + if (!(quirks & ACPI_QUIRK_SKIP_I2C_CLIENTS)) + return false; + + return acpi_match_device_ids(adev, i2c_acpi_known_good_ids); +} +EXPORT_SYMBOL_GPL(acpi_quirk_skip_i2c_client_enumeration); + +int acpi_quirk_skip_serdev_enumeration(struct device *controller_parent, bool *skip) +{ + struct acpi_device *adev = ACPI_COMPANION(controller_parent); + const struct dmi_system_id *dmi_id; + long quirks = 0; + + *skip = false; + + /* !dev_is_platform() to not match on PNP enumerated debug UARTs */ + if (!adev || !adev->pnp.unique_id || !dev_is_platform(controller_parent)) + return 0; + + dmi_id = dmi_first_match(acpi_skip_serial_bus_enumeration_ids); + if (dmi_id) + quirks = (unsigned long)dmi_id->driver_data; + + if (quirks & ACPI_QUIRK_UART1_TTY_UART2_SKIP) { + if (!strcmp(adev->pnp.unique_id, "1")) + return -ENODEV; /* Create tty cdev instead of serdev */ + + if (!strcmp(adev->pnp.unique_id, "2")) + *skip = true; + } + + return 0; +} +EXPORT_SYMBOL_GPL(acpi_quirk_skip_serdev_enumeration); +#endif diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index 17f700c9a4f9..88f21780447b 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -622,6 +622,22 @@ static inline bool acpi_device_always_present(struct acpi_device *adev) } #endif +#if IS_ENABLED(CONFIG_X86_ANDROID_TABLETS) +bool acpi_quirk_skip_i2c_client_enumeration(struct acpi_device *adev); +int acpi_quirk_skip_serdev_enumeration(struct device *controller_parent, bool *skip); +#else +static inline bool acpi_quirk_skip_i2c_client_enumeration(struct acpi_device *adev) +{ + return false; +} +static inline int +acpi_quirk_skip_serdev_enumeration(struct device *controller_parent, bool *skip) +{ + *skip = false; + return 0; +} +#endif + #ifdef CONFIG_PM void acpi_pm_wakeup_event(struct device *dev); acpi_status acpi_add_pm_notifier(struct acpi_device *adev, struct device *dev, -- cgit v1.2.3-70-g09d2 From 57a18322227134e37b693ef8ef216ed7ce7ba7d6 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Thu, 30 Dec 2021 20:31:19 +0100 Subject: ACPI / x86: Introduce an acpi_quirk_skip_acpi_ac_and_battery() helper Some x86 ACPI boards have broken AC and battery ACPI devices in their ACPI tables. This is often tied to these devices using certain PMICs where the factory OS image seems to be using native charger and fuel-gauge drivers instead. So far both the AC and battery drivers have almost identical checks for these PMICs including both of them having a DMI based mechanism to force usage of the ACPI AC and battery drivers on some boards even though one of these PMICs is present, with the same 2 boards listed in both driver's DMI tables for this. The only difference is that the AC driver checks for 2 PMICs and the battery driver only for one. This has grown this way because the other (Whiskey Cove) PMIC is only used on a few boards (3 known boards) and although some of these do have non working ACPI battery devices, their _STA method always returns 0, but that really should not be relied on. This patch factors out the shared checks into a new acpi_quirk_skip_acpi_ac_and_battery() helper and moves the AC and battery drivers over to this new helper. Note the DMI table is shared with acpi_quirk_skip_i2c_client_enumeration() and acpi_quirk_skip_serdev_enumeration(), because boards needing DMI quirks for either of these typically also have broken AC and battery ACPI devices. The ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY quirk is not set yet on boards already in this DMI table, to avoid introducing any functional changes in this refactoring patch. Besided sharing the code between the AC and battery drivers this refactoring also moves this quirk handling to under #ifdef CONFIG_X86, removing this x86 specific code from non x86 ACPI builds. Signed-off-by: Hans de Goede Signed-off-by: Rafael J. Wysocki --- drivers/acpi/ac.c | 43 ++------------------------- drivers/acpi/battery.c | 42 ++------------------------ drivers/acpi/x86/utils.c | 77 +++++++++++++++++++++++++++++++++++++++++++++--- include/acpi/acpi_bus.h | 5 ++++ 4 files changed, 84 insertions(+), 83 deletions(-) (limited to 'drivers/acpi/x86/utils.c') diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c index 81aff651a0d4..db487ff9dd1b 100644 --- a/drivers/acpi/ac.c +++ b/drivers/acpi/ac.c @@ -48,19 +48,12 @@ static const struct acpi_device_id ac_device_ids[] = { }; MODULE_DEVICE_TABLE(acpi, ac_device_ids); -/* Lists of PMIC ACPI HIDs with an (often better) native charger driver */ -static const struct acpi_ac_bl acpi_ac_blacklist[] = { - { "INT33F4", -1 }, /* X-Powers AXP288 PMIC */ - { "INT34D3", 3 }, /* Intel Cherrytrail Whiskey Cove PMIC */ -}; - #ifdef CONFIG_PM_SLEEP static int acpi_ac_resume(struct device *dev); #endif static SIMPLE_DEV_PM_OPS(acpi_ac_pm, NULL, acpi_ac_resume); static int ac_sleep_before_get_state_ms; -static int ac_check_pmic = 1; static int ac_only; static struct acpi_driver acpi_ac_driver = { @@ -200,12 +193,6 @@ static int __init thinkpad_e530_quirk(const struct dmi_system_id *d) return 0; } -static int __init ac_do_not_check_pmic_quirk(const struct dmi_system_id *d) -{ - ac_check_pmic = 0; - return 0; -} - static int __init ac_only_quirk(const struct dmi_system_id *d) { ac_only = 1; @@ -214,13 +201,6 @@ static int __init ac_only_quirk(const struct dmi_system_id *d) /* Please keep this list alphabetically sorted */ static const struct dmi_system_id ac_dmi_table[] __initconst = { - { - /* ECS EF20EA, AXP288 PMIC but uses separate fuel-gauge */ - .callback = ac_do_not_check_pmic_quirk, - .matches = { - DMI_MATCH(DMI_PRODUCT_NAME, "EF20EA"), - }, - }, { /* Kodlix GK45 returning incorrect state */ .callback = ac_only_quirk, @@ -228,15 +208,6 @@ static const struct dmi_system_id ac_dmi_table[] __initconst = { DMI_MATCH(DMI_PRODUCT_NAME, "GK45"), }, }, - { - /* Lenovo Ideapad Miix 320, AXP288 PMIC, separate fuel-gauge */ - .callback = ac_do_not_check_pmic_quirk, - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_NAME, "80XF"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"), - }, - }, { /* Lenovo Thinkpad e530, see comment in acpi_ac_notify() */ .callback = thinkpad_e530_quirk, @@ -341,23 +312,15 @@ static int acpi_ac_remove(struct acpi_device *device) static int __init acpi_ac_init(void) { - unsigned int i; int result; if (acpi_disabled) return -ENODEV; - dmi_check_system(ac_dmi_table); + if (acpi_quirk_skip_acpi_ac_and_battery()) + return -ENODEV; - if (ac_check_pmic) { - for (i = 0; i < ARRAY_SIZE(acpi_ac_blacklist); i++) - if (acpi_dev_present(acpi_ac_blacklist[i].hid, "1", - acpi_ac_blacklist[i].hrv)) { - pr_info("found native %s PMIC, not loading\n", - acpi_ac_blacklist[i].hid); - return -ENODEV; - } - } + dmi_check_system(ac_dmi_table); result = acpi_bus_register_driver(&acpi_ac_driver); if (result < 0) diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 8afa85d6eb6a..bf4b7f0b627a 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -52,7 +52,6 @@ static bool battery_driver_registered; static int battery_bix_broken_package; static int battery_notification_delay_ms; static int battery_ac_is_broken; -static int battery_check_pmic = 1; static unsigned int cache_time = 1000; module_param(cache_time, uint, 0644); MODULE_PARM_DESC(cache_time, "cache time in milliseconds"); @@ -64,11 +63,6 @@ static const struct acpi_device_id battery_device_ids[] = { MODULE_DEVICE_TABLE(acpi, battery_device_ids); -/* Lists of PMIC ACPI HIDs with an (often better) native battery driver */ -static const char * const acpi_battery_blacklist[] = { - "INT33F4", /* X-Powers AXP288 PMIC */ -}; - enum { ACPI_BATTERY_ALARM_PRESENT, ACPI_BATTERY_XINFO_PRESENT, @@ -1104,13 +1098,6 @@ battery_ac_is_broken_quirk(const struct dmi_system_id *d) return 0; } -static int __init -battery_do_not_check_pmic_quirk(const struct dmi_system_id *d) -{ - battery_check_pmic = 0; - return 0; -} - static const struct dmi_system_id bat_dmi_table[] __initconst = { { /* NEC LZ750/LS */ @@ -1139,22 +1126,6 @@ static const struct dmi_system_id bat_dmi_table[] __initconst = { DMI_MATCH(DMI_BIOS_DATE, "08/22/2014"), }, }, - { - /* ECS EF20EA, AXP288 PMIC but uses separate fuel-gauge */ - .callback = battery_do_not_check_pmic_quirk, - .matches = { - DMI_MATCH(DMI_PRODUCT_NAME, "EF20EA"), - }, - }, - { - /* Lenovo Ideapad Miix 320, AXP288 PMIC, separate fuel-gauge */ - .callback = battery_do_not_check_pmic_quirk, - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_NAME, "80XF"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"), - }, - }, {}, }; @@ -1279,19 +1250,12 @@ static struct acpi_driver acpi_battery_driver = { static void __init acpi_battery_init_async(void *unused, async_cookie_t cookie) { - unsigned int i; int result; - dmi_check_system(bat_dmi_table); + if (acpi_quirk_skip_acpi_ac_and_battery()) + return; - if (battery_check_pmic) { - for (i = 0; i < ARRAY_SIZE(acpi_battery_blacklist); i++) - if (acpi_dev_present(acpi_battery_blacklist[i], "1", -1)) { - pr_info("found native %s PMIC, not loading\n", - acpi_battery_blacklist[i]); - return; - } - } + dmi_check_system(bat_dmi_table); result = acpi_bus_register_driver(&acpi_battery_driver); battery_driver_registered = (result == 0); diff --git a/drivers/acpi/x86/utils.c b/drivers/acpi/x86/utils.c index 375a0911f06d..5411f2f1254e 100644 --- a/drivers/acpi/x86/utils.c +++ b/drivers/acpi/x86/utils.c @@ -8,6 +8,8 @@ * Copyright (C) 2013-2015 Intel Corporation. All rights reserved. */ +#define pr_fmt(fmt) "ACPI: " fmt + #include #include #include @@ -210,7 +212,6 @@ bool force_storage_d3(void) return x86_match_cpu(storage_d3_cpu_ids); } -#if IS_ENABLED(CONFIG_X86_ANDROID_TABLETS) /* * x86 ACPI boards which ship with only Android as their factory image usually * declare a whole bunch of bogus I2C devices in their ACPI tables and sometimes @@ -236,8 +237,36 @@ bool force_storage_d3(void) */ #define ACPI_QUIRK_SKIP_I2C_CLIENTS BIT(0) #define ACPI_QUIRK_UART1_TTY_UART2_SKIP BIT(1) +#define ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY BIT(2) +#define ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY BIT(3) + +static const struct dmi_system_id acpi_quirk_skip_dmi_ids[] = { + /* + * 1. Devices with only the skip / don't-skip AC and battery quirks, + * sorted alphabetically. + */ + { + /* ECS EF20EA, AXP288 PMIC but uses separate fuel-gauge */ + .matches = { + DMI_MATCH(DMI_PRODUCT_NAME, "EF20EA"), + }, + .driver_data = (void *)ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY + }, + { + /* Lenovo Ideapad Miix 320, AXP288 PMIC, separate fuel-gauge */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_NAME, "80XF"), + DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"), + }, + .driver_data = (void *)ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY + }, -static const struct dmi_system_id acpi_skip_serial_bus_enumeration_ids[] = { + /* + * 2. Devices which also have the skip i2c/serdev quirks and which + * need the x86-android-tablets module to properly work. + */ +#if IS_ENABLED(CONFIG_X86_ANDROID_TABLETS) { .matches = { DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), @@ -263,9 +292,11 @@ static const struct dmi_system_id acpi_skip_serial_bus_enumeration_ids[] = { }, .driver_data = (void *)ACPI_QUIRK_SKIP_I2C_CLIENTS, }, +#endif {} }; +#if IS_ENABLED(CONFIG_X86_ANDROID_TABLETS) static const struct acpi_device_id i2c_acpi_known_good_ids[] = { { "10EC5640", 0 }, /* RealTek ALC5640 audio codec */ { "INT33F4", 0 }, /* X-Powers AXP288 PMIC */ @@ -279,7 +310,7 @@ bool acpi_quirk_skip_i2c_client_enumeration(struct acpi_device *adev) const struct dmi_system_id *dmi_id; long quirks; - dmi_id = dmi_first_match(acpi_skip_serial_bus_enumeration_ids); + dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids); if (!dmi_id) return false; @@ -303,7 +334,7 @@ int acpi_quirk_skip_serdev_enumeration(struct device *controller_parent, bool *s if (!adev || !adev->pnp.unique_id || !dev_is_platform(controller_parent)) return 0; - dmi_id = dmi_first_match(acpi_skip_serial_bus_enumeration_ids); + dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids); if (dmi_id) quirks = (unsigned long)dmi_id->driver_data; @@ -319,3 +350,41 @@ int acpi_quirk_skip_serdev_enumeration(struct device *controller_parent, bool *s } EXPORT_SYMBOL_GPL(acpi_quirk_skip_serdev_enumeration); #endif + +/* Lists of PMIC ACPI HIDs with an (often better) native charger driver */ +static const struct { + const char *hid; + int hrv; +} acpi_skip_ac_and_battery_pmic_ids[] = { + { "INT33F4", -1 }, /* X-Powers AXP288 PMIC */ + { "INT34D3", 3 }, /* Intel Cherrytrail Whiskey Cove PMIC */ +}; + +bool acpi_quirk_skip_acpi_ac_and_battery(void) +{ + const struct dmi_system_id *dmi_id; + long quirks = 0; + int i; + + dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids); + if (dmi_id) + quirks = (unsigned long)dmi_id->driver_data; + + if (quirks & ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY) + return true; + + if (quirks & ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY) + return false; + + for (i = 0; i < ARRAY_SIZE(acpi_skip_ac_and_battery_pmic_ids); i++) { + if (acpi_dev_present(acpi_skip_ac_and_battery_pmic_ids[i].hid, "1", + acpi_skip_ac_and_battery_pmic_ids[i].hrv)) { + pr_info_once("found native %s PMIC, skipping ACPI AC and battery devices\n", + acpi_skip_ac_and_battery_pmic_ids[i].hid); + return true; + } + } + + return false; +} +EXPORT_SYMBOL_GPL(acpi_quirk_skip_acpi_ac_and_battery); diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index 80c425bc98a7..04b9ace9689b 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -615,12 +615,17 @@ int acpi_disable_wakeup_device_power(struct acpi_device *dev); #ifdef CONFIG_X86 bool acpi_device_override_status(struct acpi_device *adev, unsigned long long *status); +bool acpi_quirk_skip_acpi_ac_and_battery(void); #else static inline bool acpi_device_override_status(struct acpi_device *adev, unsigned long long *status) { return false; } +static inline bool acpi_quirk_skip_acpi_ac_and_battery(void) +{ + return false; +} #endif #if IS_ENABLED(CONFIG_X86_ANDROID_TABLETS) -- cgit v1.2.3-70-g09d2 From 1b15b69800e2f9320b3d1fc0611c177c70c24424 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Thu, 30 Dec 2021 20:31:20 +0100 Subject: ACPI / x86: Skip AC and battery devices on x86 Android tablets with broken DSDTs So far all of the tablets for which the skip i2c-client/serdev enumeration quirks have been added also all have broken ACPI AC / battery devices extend the existing quirks for these tablets to also skip the broken AC / battery devices. Signed-off-by: Hans de Goede Signed-off-by: Rafael J. Wysocki --- drivers/acpi/x86/utils.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'drivers/acpi/x86/utils.c') diff --git a/drivers/acpi/x86/utils.c b/drivers/acpi/x86/utils.c index 5411f2f1254e..ffdeed5334d6 100644 --- a/drivers/acpi/x86/utils.c +++ b/drivers/acpi/x86/utils.c @@ -273,14 +273,16 @@ static const struct dmi_system_id acpi_quirk_skip_dmi_ids[] = { DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "ME176C"), }, .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS | - ACPI_QUIRK_UART1_TTY_UART2_SKIP), + ACPI_QUIRK_UART1_TTY_UART2_SKIP | + ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY), }, { .matches = { DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), DMI_MATCH(DMI_PRODUCT_NAME, "TF103C"), }, - .driver_data = (void *)ACPI_QUIRK_SKIP_I2C_CLIENTS, + .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS | + ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY), }, { /* Whitelabel (sold as various brands) TM800A550L */ @@ -290,7 +292,8 @@ static const struct dmi_system_id acpi_quirk_skip_dmi_ids[] = { /* Above strings are too generic, also match on BIOS version */ DMI_MATCH(DMI_BIOS_VERSION, "ZY-8-BI-PX4S70VTR400-X423B-005-D"), }, - .driver_data = (void *)ACPI_QUIRK_SKIP_I2C_CLIENTS, + .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS | + ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY), }, #endif {} -- cgit v1.2.3-70-g09d2