On Fri, Nov 21, 2014 at 07:17:18PM +0100, Johannes Pointner wrote:

Before the patches were also jumps but I thought it is something
Vignesh should know. Maybe there is some fix for that too?
As Richard also noted, it would be nice if ti could let us know how to
get the delay values right. By trial and error is IMHO not the best
way.

That is not only an opinion, it is a matter of fact. TI really dropped
the ball on this one. I thought the patch series was a sign they
finally were going to properly address this issue. Wrong again.

The data sheet for the TI part used to have a reference to an app-note
for the touch controller.

      spruh73f page 1154

      The Pen IRQ can only occur if the correct Pen Ctrl bits are high
      (AFE Pen Ctrl bits 6:5 in the TSC_ADC control register) and if
      the correct ground transistor biasing is set in the StepConfig
      [N] Register. Refer to the application notes for the correct
      settings.

I searched high and low for this application note. Then, the data
sheet got revised.

Thanks,
Richard