On Sat, Oct 19, 2024 at 11:09:43AM +0000, Wojciech Siudy (Nokia) wrote: > Hi! > > > If you have a reset GPIO for the mux, then why wouldn't just use it > > on timeout? > > Because we cannot do that on every board. The reset GPIO is provided to > ensure, that we have reset signal de-asserted during initialisation. > You might have connected other devices to the same reset line so this > must be a configurable option. > > > What happens if you timeout and don't have this property? Just > give up? > > This would be the case just like before introducting this change. Some > aplications might do other attempt, the bus driver can try recovery. > Unfortunately common reset line for multiple chips is not a rare > situation. And Linux handles it well now. This is reset of the I2C devices (children), not the controller, right? If so, then: 1. It's not a property of the controller, 2. Linux already handles it - switch to reset controller framework. Best regards, Krzysztof
