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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-07-06 23:57:54 +0200 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-07-12 02:26:37 +0200 |
| commit | 517178692ccd730a95b278bd8cd67e11498a9a84 (patch) | |
| tree | 003f65c61a620de968ed2455a99d935d14aaa646 /drivers/input/touchscreen | |
| parent | Input: of_touchscreen - always issue warning if axis is not set up (diff) | |
| download | linux-517178692ccd730a95b278bd8cd67e11498a9a84.tar.xz linux-517178692ccd730a95b278bd8cd67e11498a9a84.zip | |
Input: of_touchscreen - fix setting max values on X/Y axis
The binding specification says that "touchscreen-size-x" and "-y" specify
horizontal and vertical resolution of the touchscreen and therefore maximum
absolute coordinates should be reduced by 1 since we are starting with 0.
Reviewed-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/touchscreen')
| -rw-r--r-- | drivers/input/touchscreen/of_touchscreen.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/input/touchscreen/of_touchscreen.c b/drivers/input/touchscreen/of_touchscreen.c index 759cf4b8ba09..50bc0f219547 100644 --- a/drivers/input/touchscreen/of_touchscreen.c +++ b/drivers/input/touchscreen/of_touchscreen.c @@ -71,23 +71,25 @@ void touchscreen_parse_of_params(struct input_dev *dev, bool multitouch) axis = multitouch ? ABS_MT_POSITION_X : ABS_X; data_present = touchscreen_get_prop_u32(np, "touchscreen-size-x", - input_abs_get_max(dev, axis), + input_abs_get_max(dev, + axis) + 1, &maximum) | touchscreen_get_prop_u32(np, "touchscreen-fuzz-x", input_abs_get_fuzz(dev, axis), &fuzz); if (data_present) - touchscreen_set_params(dev, axis, maximum, fuzz); + touchscreen_set_params(dev, axis, maximum - 1, fuzz); axis = multitouch ? ABS_MT_POSITION_Y : ABS_Y; data_present = touchscreen_get_prop_u32(np, "touchscreen-size-y", - input_abs_get_max(dev, axis), + input_abs_get_max(dev, + axis) + 1, &maximum) | touchscreen_get_prop_u32(np, "touchscreen-fuzz-y", input_abs_get_fuzz(dev, axis), &fuzz); if (data_present) - touchscreen_set_params(dev, axis, maximum, fuzz); + touchscreen_set_params(dev, axis, maximum - 1, fuzz); axis = multitouch ? ABS_MT_PRESSURE : ABS_PRESSURE; data_present = touchscreen_get_prop_u32(np, "touchscreen-max-pressure", |