Re: [PATCH v11 3/4] i2c: aspeed: added driver for Aspeed I2C

From: Wolfram Sang
Date: Fri Jul 14 2017 - 03:18:13 EST

> Basically what I was asking is whether I could use i2c_generic_scl_recovery
> in the case where SCL is hung.

The name is a bit misleading, I am afraid. Recovery can only be used when
SDA is stuck low. And to fix this it *uses* SCL toggling to get out of
it. And 'generic_scl' means 'gimme some SCL to control and I will toggle
it'. Compared to 'gpio_recovery' which will do all the GPIO handling for

When SCL is hung, you can only reset the device which forces SCL low.

> I think I have a pretty good idea of what to do, I should probably just put
> together an RFC patch.


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