On Thu, Dec 30, 2021 at 03:17:21PM +0100, Hans de Goede wrote:
> x86 ACPI devices which ship with only Android as their factory image
> usually declare a whole bunch of bogus I2C devices in their ACPI tables.
> 
> Instantiating I2C clients for these bogus devices 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 these bogus devices, instead of just fixing the DSDT <sigh>.
> 
> Use the new acpi_quirk_skip_i2c_client_enumeration() helper to identify
> known boards / acpi devices with this issue, and skip enumerating these.
> 
> Note these boards typically do actually have I2C 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.
> 
> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
> Signed-off-by: Hans de Goede <hdegoede@redhat.com>

Reviewed-by: Wolfram Sang <wsa@kernel.org>