OpenCloudOS-Kernel/include/acpi
Hans de Goede 5adc409340 ACPI: x86: Introduce an acpi_quirk_skip_gpio_event_handlers() helper
x86 ACPI boards which ship with only Android as their factory image usually
have pretty broken ACPI tables, relying on everything being hardcoded in
the factory kernel image and often disabling parts of the ACPI enumeration
kernel code to avoid the broken tables causing issues.

Part of this broken ACPI code is that sometimes these boards have _AEI
ACPI GPIO event handlers which are broken.

So far this has been dealt with in the platform/x86/x86-android-tablets.c
module, which contains various workarounds for these devices, by it calling
acpi_gpiochip_free_interrupts() on gpiochip-s with troublesome handlers to
disable the handlers.

But in some cases this is too late, if the handlers are of the edge type
then gpiolib-acpi.c's code will already have run them at boot.
This can cause issues such as GPIOs ending up as owned by "ACPI:OpRegion",
making them unavailable for drivers which actually need them.

Boards with these broken ACPI tables are already listed in
drivers/acpi/x86/utils.c for e.g. acpi_quirk_skip_i2c_client_enumeration().
Extend the quirks mechanism for a new acpi_quirk_skip_gpio_event_handlers()
helper, this re-uses the DMI-ids rather then having to duplicate the same
DMI table in gpiolib-acpi.c .

Also add the new ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS quirk to existing
boards with troublesome ACPI gpio event handlers, so that the current
acpi_gpiochip_free_interrupts() hack can be removed from
x86-android-tablets.c .

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Rafael J. Wysocki <rjw@rjwysocki.net>
2023-03-07 14:15:10 +01:00
..
platform Remove Intel compiler support 2023-03-05 10:49:37 -08:00
acbuffer.h ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
acconfig.h ACPICA: Add support for FFH Opregion special context data 2022-10-28 17:28:22 +02:00
acexcep.h ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
acnames.h ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
acoutput.h ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
acpi.h ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
acpi_bus.h ACPI: x86: Introduce an acpi_quirk_skip_gpio_event_handlers() helper 2023-03-07 14:15:10 +01:00
acpi_drivers.h Merge branches 'acpi-pci' and 'acpi-processor' 2021-04-26 17:03:05 +02:00
acpi_io.h Revert "ACPI: Add memory semantics to acpi_os_map_memory()" 2021-09-23 20:39:36 +02:00
acpi_lpat.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
acpi_numa.h ACPI: processor: Replace kernel.h with the necessary inclusions 2021-11-24 17:44:04 +01:00
acpiosxf.h ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
acpixf.h ACPICA: Constify pathname argument for acpi_get_handle() 2022-12-30 18:52:09 +01:00
acrestyp.h ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
actbl.h ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
actbl1.h IOMMU Updates for Linux v6.3: 2023-02-24 13:40:13 -08:00
actbl2.h ACPICA: Finish support for the CDAT table 2022-10-28 17:28:23 +02:00
actbl3.h tpm_crb: Add support for CRB devices based on Pluton 2023-02-13 10:10:52 +02:00
actypes.h ACPICA: Add support for FFH Opregion special context data 2022-10-28 17:28:22 +02:00
acuuid.h ACPICA: Add a couple of new UUIDs to the known UUID list 2022-10-28 17:28:22 +02:00
apei.h ACPI: APEI: Fix missing ERST record id 2022-04-13 20:29:24 +02:00
battery.h ACPI: battery: Pass battery hook pointer to hook callbacks 2022-11-16 08:48:18 +01:00
button.h ACPI: button: move HIDs to acpi/button.h 2020-02-13 23:36:23 +01:00
cppc_acpi.h ACPI: CPPC: Add AMD pstate energy performance preference cppc control 2023-02-03 21:59:41 +01:00
ghes.h - Make ghes_edac a simple module like the rest of the EDAC drivers and 2022-12-12 14:47:31 -08:00
hed.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428 2019-06-05 17:37:16 +02:00
nfit.h acpi, nfit: Add function to look up nvdimm device and provide SMBIOS handle 2018-03-14 12:43:50 +01:00
pcc.h mailbox: pcc: Use PCC mailbox channel pointer instead of standard 2021-10-29 22:46:38 -05:00
pdc_intel.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
processor.h ACPI: processor: Silence missing prototype warnings 2022-11-23 19:36:46 +01:00
reboot.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
video.h ACPI: video: Allow GPU drivers to report no panels 2022-12-22 17:26:41 +01:00