On Mon, Aug 27, 2018 at 04:08:47PM -0300, Fabio Estevam wrote:
> Hi,
>
> Has anyone managed to read ADC values from the MC13892 ADC recently?
>
> I am running 4.19-rc1 on a imx51-babbage board and after trying to
> read a channel:
>
> # cat /sys/class/hwmon/hwmon0/device/in7_input
>
> the PMIC shuts down completely, which causes the entire board to die.
>
> I don't know if this is a regression or not. I can try to run a
> bisect, but I would be interested to know if anyone knows if MC13892
> ADC readings worked at some point in the past.
>
If I recall correctly, the most recent change was commit ed645cccc0eb
("hwmon: MC13783: Add uid and die temperature sensor inputs"). It is a
wild shot, but you could try reverting it to see if it makes a difference.
Guenter
