tree 256e64cf65833187cc67b78ae53ae2d4daf4c3e2
parent d2c98e226f5dabdf9d031ab73ac9753f5e1d031d
author Yufeng Shen <miletus@chromium.org> 1315439761 -0400
committer Yufeng Shen <miletus@chromium.org> 1315587518 -0700

CHROMIUM: tegra: asymptote: Tuning touch controller parameters

Tuing atmel touch controller configuration on asymptote to
have better SNR.
1. Enable Noise Suppression Object T22.
2. Set scan FREQ[0] to be 13.
3. Set Touch Threshold TCHTHR to be 30.
4. Set Touch Detect Integration TCHDI to be 2.
5. Set BLEN in T9 to be 0.
6. Set ACTIVGCAFDEPTH and IDLEGCAFDEPTH to be 20.

BUG=None
TEST=Manually tested on 3 Asymptote and confirmed false detection is
not seen.

Change-Id: I290a6cb9441078f6f8aa0df86022fed496466d84
Signed-off-by: Yufeng Shen <miletus@chromium.org>
Reviewed-on: http://gerrit.chromium.org/gerrit/7379
Reviewed-by: Jon Kliegman <kliegs@chromium.org>