On Sat, Nov 12, 2016 at 12:04 AM, Michael Mrozek EvilDragon@openpandora.org wrote:
Another idea I had: Can ANY voltage be defined in the board file?
The palmas manual states that 0.5V - 1.65V can be programmed in 0.01V steps. Device tree specifies a bit narrower range of 0.6 - 1.5V, just to be safe I guess.
The OMAP manual says the allowed range is 0.85V - 1.25V. "The voltage at the device ball should never be below the MIN voltage or above the MAX voltage for any amount of time. This requirement includes dynamic voltage events such as AC ripple, voltage transients, voltage dips, etc."
Or could it be that 1,35V / 1,45V is not allowed by the driver and the PALMAS sticks to the default voltage in case it has an illegal voltage?
I don't think so. I think Nikolaus said he has measured the voltage to be really changing, I guess he could confirm that again just in case...
GraÅžvydas