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| author | Martin Kepplinger <martin.kepplinger@ginzinger.com> | 2017-05-22 17:19:45 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2017-05-22 17:22:50 -0700 |
| commit | aa3d4409b664813ceb86a24bd09458cdd29cbb8a (patch) | |
| tree | ceeebedd394f0fcba601861e9307ce5d7e55f338 /Documentation | |
| parent | 3af9256150b3ecc597c5428711f87ce105d1d58e (diff) | |
| download | lwn-aa3d4409b664813ceb86a24bd09458cdd29cbb8a.tar.gz lwn-aa3d4409b664813ceb86a24bd09458cdd29cbb8a.zip | |
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: Schoefegger Stefan <stefan.schoefegger@ginzinger.com>
Signed-off-by: Manfred Schlaegl <manfred.schlaegl@ginzinger.com>
Signed-off-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt | 2 | ||||
| -rw-r--r-- | Documentation/input/devices/edt-ft5x06.rst | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt b/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt index 6db22103e2dd..025cf8c9324a 100644 --- a/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt +++ b/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt @@ -36,7 +36,7 @@ Optional properties: control gpios - 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 31. Note that lower values indicate higher diff --git a/Documentation/input/devices/edt-ft5x06.rst b/Documentation/input/devices/edt-ft5x06.rst index 2032f0b7a8fa..1ccc94b192b7 100644 --- a/Documentation/input/devices/edt-ft5x06.rst +++ b/Documentation/input/devices/edt-ft5x06.rst @@ -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: /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: allows setting the sensitivity in the range from 0 to 31. Note that |