On Wed, Dec 28, 2016 at 03:53:16PM +0100, H. Nikolaus Schaller wrote:
commit b98abe52fa8e ("Input: add common DT binding for touchscreens") introduced common DT bindings for touchscreens [1] and a helper function to parse the DT.
commit ed7c9870c9bc ("Input: of_touchscreen - add support for inverted / swapped axes") added another helper for parsing axis inversion and swapping and applying them to x and y coordinates.
Both helpers have been integrated to accommodate any orientation of the touch panel in relation to the LCD.
A new feature is to introduce scaling the min/max ADC values to the screen size.
This makes it possible to pre-calibrate the touch so that is (almost) exactly matches the LCD pixel coordinates it is glued onto. This allows to well enough operate the touch before a user space calibration step can improve the precision.
Please note that the old ti,fuzz properties have been removed since they are replaced by the common bindings touchscreen-fuzz-x/y/z.
Finally, calculate_pressure has been renamed to calculate_resistance because that is what it is doing.
Signed-off-by: H. Nikolaus Schaller hns@goldelico.com
.../bindings/input/touchscreen/tsc2007.txt | 20 ++--
Acked-by: Rob Herring robh@kernel.org
drivers/input/touchscreen/tsc2007.c | 120 +++++++++++++++++---- include/linux/i2c/tsc2007.h | 8 ++ 3 files changed, 118 insertions(+), 30 deletions(-)