Touchscreen failure with CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND

[Fabio Estevam]

Hi Adam,

On Tue, Apr 25, 2017 at 9:41 AM, Adam Ford <aford173 at gmail.com> wrote:

> I don't have that board, so I can't test, but I have seen other issues on my
> imx6 board where operating at 'performance' instead of on-demand worked
> better for me as well in different areas.   I was assuming it was something

What are the issues you observed with 'on-demand' on your mx6 board?

> regarding the voltage levels of various regulators for my board, and I am
> going to run tests on my board by playing with regulators on my device tree
> to make sure they are properly regulating to the right voltages.  Since
> 'performance' runs the processor at both a higher speed and higher voltage,
> it's conceivable to me that something is just below some limit/level and
> needs some minor adjustment. At least that is my theory with my board
> issues.  Have you looked considered that possibility?

One test I have already tried was to run all other cpufreq operating
points with the same ARM and SOC-PU voltages as the 996MHz.

Still in this case I do see touchscreen failure.