ti,vref-delay-usecs vref supply delay in usecs, 0 for
external vref (u16).
ti,vref-mv The VREF voltage, in millivolts (u16).
- Set to 0 to use internal refernce
+ Set to 0 to use internal references
(ADS7846).
ti,keep-vref-on set to keep vref on for differential
measurements as well
- fsl,pen-debounce-ns: Pen debounce time in nanoseconds.
- fsl,pen-threshold: Pen-down threshold for the touchscreen. This is a value
between 1 and 4096. It is the ratio between the internal reference voltage
- and the measured voltage after the plate was precharged. Resistence between
+ and the measured voltage after the plate was precharged. Resistance between
plates and therefore the voltage decreases with pressure so that a smaller
value is equivalent to a higher pressure.
- fsl,settling-time-ns: Settling time in nanoseconds. The settling time is before