Closed drbild closed 4 years ago
After inspecting our device tree again, I think the latter is happening. We've told it that the regulator only supports 1.8V, but the mmc driver still tries to switch to 3.3V and logs an error. That's a kernel issue, not our issue, so closing this.
The following errors appears in the router card boot logs.
I believe that our board only supports the 1.8V voltage for mmc1, so it can't switch to 3.3V. This should be ok.
Our device tree should indicate that the voltage controller is fixed as 1.8V. Not sure if this message is because our device tree is missing that config, or if the log message is just informing us that a fixed 1.8V regulator can't be switched to 3.3V.