Commit aa3d4409 authored by Martin Kepplinger's avatar Martin Kepplinger Committed by Dmitry Torokhov

Input: edt-ft5x06 - increase allowed data range for threshold parameter

The datasheet and application note does not mention an allowed range for
the M09_REGISTER_THRESHOLD parameter. One of our customers needs to set
lower values than 20 and they seem to work just fine on EDT EP0xx0M09 with
T5x06 touch.

So, lacking a known lower limit, we increase the range for thresholds,
and set the lower limit to 0. The documentation is updated accordingly.
Signed-off-by: default avatarSchoefegger Stefan <stefan.schoefegger@ginzinger.com>
Signed-off-by: default avatarManfred Schlaegl <manfred.schlaegl@ginzinger.com>
Signed-off-by: default avatarMartin Kepplinger <martin.kepplinger@ginzinger.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent 3af92561
...@@ -36,7 +36,7 @@ Optional properties: ...@@ -36,7 +36,7 @@ Optional properties:
control gpios control gpios
- threshold: allows setting the "click"-threshold in the range - threshold: allows setting the "click"-threshold in the range
from 20 to 80. from 0 to 80.
- gain: allows setting the sensitivity in the range from 0 to - gain: allows setting the sensitivity in the range from 0 to
31. Note that lower values indicate higher 31. Note that lower values indicate higher
......
...@@ -15,7 +15,7 @@ It has been tested with the following devices: ...@@ -15,7 +15,7 @@ It has been tested with the following devices:
The driver allows configuration of the touch screen via a set of sysfs files: The driver allows configuration of the touch screen via a set of sysfs files:
/sys/class/input/eventX/device/device/threshold: /sys/class/input/eventX/device/device/threshold:
allows setting the "click"-threshold in the range from 20 to 80. allows setting the "click"-threshold in the range from 0 to 80.
/sys/class/input/eventX/device/device/gain: /sys/class/input/eventX/device/device/gain:
allows setting the sensitivity in the range from 0 to 31. Note that allows setting the sensitivity in the range from 0 to 31. Note that
......
...@@ -471,7 +471,7 @@ static EDT_ATTR(gain, S_IWUSR | S_IRUGO, WORK_REGISTER_GAIN, ...@@ -471,7 +471,7 @@ static EDT_ATTR(gain, S_IWUSR | S_IRUGO, WORK_REGISTER_GAIN,
static EDT_ATTR(offset, S_IWUSR | S_IRUGO, WORK_REGISTER_OFFSET, static EDT_ATTR(offset, S_IWUSR | S_IRUGO, WORK_REGISTER_OFFSET,
M09_REGISTER_OFFSET, 0, 31); M09_REGISTER_OFFSET, 0, 31);
static EDT_ATTR(threshold, S_IWUSR | S_IRUGO, WORK_REGISTER_THRESHOLD, static EDT_ATTR(threshold, S_IWUSR | S_IRUGO, WORK_REGISTER_THRESHOLD,
M09_REGISTER_THRESHOLD, 20, 80); M09_REGISTER_THRESHOLD, 0, 80);
static EDT_ATTR(report_rate, S_IWUSR | S_IRUGO, WORK_REGISTER_REPORT_RATE, static EDT_ATTR(report_rate, S_IWUSR | S_IRUGO, WORK_REGISTER_REPORT_RATE,
NO_REGISTER, 3, 14); NO_REGISTER, 3, 14);
......
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