platform/x86: i2c-multi-instantiate: Don't create platform device for INT3515 ACPI...
authorHeikki Krogerus <heikki.krogerus@linux.intel.com>
Wed, 23 Dec 2020 14:36:44 +0000 (17:36 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 27 Jan 2021 10:54:51 +0000 (11:54 +0100)
commit4d33a2e557da23984ef4ea7514ee2942df4ed7f2
treeee70223925545bd7a2aeeced39de4501d37e2d9b
parentc47951346c3c62bfad92ce45652b5fda0a785297
platform/x86: i2c-multi-instantiate: Don't create platform device for INT3515 ACPI nodes

commit 9bba96275576da0cf78ede62aeb2fc975ed8a32d upstream.

There are several reports about the tps6598x causing
interrupt flood on boards with the INT3515 ACPI node, which
then causes instability. There appears to be several
problems with the interrupt. One problem is that the
I2CSerialBus resources do not always map to the Interrupt
resource with the same index, but that is not the only
problem. We have not been able to come up with a solution
for all the issues, and because of that disabling the device
for now.

The PD controller on these platforms is autonomous, and the
purpose for the driver is primarily to supply status to the
userspace, so this will not affect any functionality.

Reported-by: Moody Salem <moody@uniswap.org>
Fixes: a3dd034a1707 ("ACPI / scan: Create platform device for INT3515 ACPI nodes")
Cc: stable@vger.kernel.org
BugLink: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1883511
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20201223143644.33341-1-heikki.krogerus@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/platform/x86/i2c-multi-instantiate.c