Re: [PATCH] gpio: pca953x: fix an incorrect lockdep warning

From: Bartosz Golaszewski
Date: Fri Sep 16 2016 - 12:04:50 EST

2016-09-16 16:18 GMT+02:00 Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>:
> If an I2C GPIO multiplexer is driven by a GPIO provided by an expander
> when there's a second expander using the same device driver on one of
> the I2C bus segments, lockdep prints a deadlock warning when trying to
> set the direction or the value of the GPIOs provided by the second
> expander.


Superseded by v2.