Re: i2c issues in 6.18 on R4, but not r4pro (both mt7988 with i2c-mux on i2c2)

Frank Wunderlich (linux)
2025-11-02T18:00:27Z

Am 2025-11-02 13:45, schrieb Wolfram Sang:
> Can you try enabling CONFIG_RESET_GPIO please? It is probably that this
> driver is missing. The core relies on that driver for the fallback the
> above patch makes use of. Sadly, I couldn't convince the reset
> maintainers of a way to automatically select the driver for existing
> users :(

Thanks for pointing to this and indeed i had not enabled this. This is
my fault and not
from reset maintainers as i have my own defconfig. Tested and my mux
works now again.

Maybe this option should be enabled by default or when the i2c-mux is
selected?

When moving from specific to a generic aproach (which makes sense) imho
it should be
mentioned in commit description which option needed instead :)

btw. the Authors Email seems not working, got

<wojciech.siudy@nokia.com>: host
nokia-com.mail.protection.outlook.com[52.101.73.24] said: 550 5.4.1
Recipient address rejected: Access denied.

or maybe its inbox has a whitelist from which domains he can receive
mails and my
domain is not added to it.

regards Frank