[PATCH 0/3] i2c: imx: Fix handling of arbitration loss

From: Christian Eggers
Date: Thu Sep 17 2020 - 08:55:30 EST


On my (noisy) system, I2C arbitration losses happen quite often. In it's
current implementation, the IAL flags is partly handled, but has a
number of shortcomings:

1. The driver runs unnecessarily in a timeout when waiting for an
interrupt.

2. The driver performs 500 ms busy-waiting without any value.

3. Arbitration loss errors may be reported one transfer later than they
occured.

Best regards
Christian