Suggestion to increase the number of tps65217 power-up attempts in io-pwr

[aspect]

Hi Everyone,

I had a titan controller that failed. We examined the board and determined that tps65217 was not powering up. Some kind of a problem on the board. It was actually working intermittently. One out of 20 times it would power on.

I dove in a little bit further and replaced tps65217 power init routine that does 3 attempts with a while(true) loop. Surely enough this would eventually cause controller to power up.

https://github.com/KnCMiner/knc-asic/blob/master/io-pwr.c#L76

I realize that the problem is specific to my unit, but I wanted to suggest that maybe you want to increase the number of power up attempts to maybe like 15. I've seen posts on the forums from people who have LCD light up but nothing happens.

I also determined that there is a specific cube that when plugged into this controller will cause tps65217 to never power up. Not sure what the defect is. The same cube causes another controller to hang while seems to work on other controllers.

[dvitas]

Starting from commit b86d8b8 you can specify number of initializing attempts as a command-line option (-a) to io-pwr application.
This change is already included in Titan 1.10 release.

Thanks,
Vitalii