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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2020-03-07 02:11:46 +0100 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2020-03-24 23:21:24 +0100 |
| commit | cc5117d6e4988e684f68ce5b5db312a3f0f943df (patch) | |
| tree | 6a66010e2feafc01ee7767fe42be5f0b0cf22e34 /drivers/input | |
| parent | Input: goodix - support gt9147 touchpanel (diff) | |
| download | linux-cc5117d6e4988e684f68ce5b5db312a3f0f943df.tar.xz linux-cc5117d6e4988e684f68ce5b5db312a3f0f943df.zip | |
Input: of_touchscreen - explicitly choose axis
The 'axis + 1' calculation is implicit and potentially error prone.
Moreover, few lines before the axis is set explicitly for both X and Y.
Do the same when retrieving different properties for X and Y.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200303180917.12563-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/touchscreen/of_touchscreen.c | 35 |
1 files changed, 17 insertions, 18 deletions
diff --git a/drivers/input/touchscreen/of_touchscreen.c b/drivers/input/touchscreen/of_touchscreen.c index e16ec4c7043a..97342e14b4f1 100644 --- a/drivers/input/touchscreen/of_touchscreen.c +++ b/drivers/input/touchscreen/of_touchscreen.c @@ -66,7 +66,7 @@ void touchscreen_parse_properties(struct input_dev *input, bool multitouch, { struct device *dev = input->dev.parent; struct input_absinfo *absinfo; - unsigned int axis; + unsigned int axis, axis_x, axis_y; unsigned int minimum, maximum, fuzz; bool data_present; @@ -74,33 +74,34 @@ void touchscreen_parse_properties(struct input_dev *input, bool multitouch, if (!input->absinfo) return; - axis = multitouch ? ABS_MT_POSITION_X : ABS_X; + axis_x = multitouch ? ABS_MT_POSITION_X : ABS_X; + axis_y = multitouch ? ABS_MT_POSITION_Y : ABS_Y; + data_present = touchscreen_get_prop_u32(dev, "touchscreen-min-x", - input_abs_get_min(input, axis), + input_abs_get_min(input, axis_x), &minimum) | touchscreen_get_prop_u32(dev, "touchscreen-size-x", input_abs_get_max(input, - axis) + 1, + axis_x) + 1, &maximum) | touchscreen_get_prop_u32(dev, "touchscreen-fuzz-x", - input_abs_get_fuzz(input, axis), + input_abs_get_fuzz(input, axis_x), &fuzz); if (data_present) - touchscreen_set_params(input, axis, minimum, maximum - 1, fuzz); + touchscreen_set_params(input, axis_x, minimum, maximum - 1, fuzz); - axis = multitouch ? ABS_MT_POSITION_Y : ABS_Y; data_present = touchscreen_get_prop_u32(dev, "touchscreen-min-y", - input_abs_get_min(input, axis), + input_abs_get_min(input, axis_y), &minimum) | touchscreen_get_prop_u32(dev, "touchscreen-size-y", input_abs_get_max(input, - axis) + 1, + axis_y) + 1, &maximum) | touchscreen_get_prop_u32(dev, "touchscreen-fuzz-y", - input_abs_get_fuzz(input, axis), + input_abs_get_fuzz(input, axis_y), &fuzz); if (data_present) - touchscreen_set_params(input, axis, minimum, maximum - 1, fuzz); + touchscreen_set_params(input, axis_y, minimum, maximum - 1, fuzz); axis = multitouch ? ABS_MT_PRESSURE : ABS_PRESSURE; data_present = touchscreen_get_prop_u32(dev, @@ -117,15 +118,13 @@ void touchscreen_parse_properties(struct input_dev *input, bool multitouch, if (!prop) return; - axis = multitouch ? ABS_MT_POSITION_X : ABS_X; - - prop->max_x = input_abs_get_max(input, axis); - prop->max_y = input_abs_get_max(input, axis + 1); + prop->max_x = input_abs_get_max(input, axis_x); + prop->max_y = input_abs_get_max(input, axis_y); prop->invert_x = device_property_read_bool(dev, "touchscreen-inverted-x"); if (prop->invert_x) { - absinfo = &input->absinfo[axis]; + absinfo = &input->absinfo[axis_x]; absinfo->maximum -= absinfo->minimum; absinfo->minimum = 0; } @@ -133,7 +132,7 @@ void touchscreen_parse_properties(struct input_dev *input, bool multitouch, prop->invert_y = device_property_read_bool(dev, "touchscreen-inverted-y"); if (prop->invert_y) { - absinfo = &input->absinfo[axis + 1]; + absinfo = &input->absinfo[axis_y]; absinfo->maximum -= absinfo->minimum; absinfo->minimum = 0; } @@ -141,7 +140,7 @@ void touchscreen_parse_properties(struct input_dev *input, bool multitouch, prop->swap_x_y = device_property_read_bool(dev, "touchscreen-swapped-x-y"); if (prop->swap_x_y) - swap(input->absinfo[axis], input->absinfo[axis + 1]); + swap(input->absinfo[axis_x], input->absinfo[axis_y]); } EXPORT_SYMBOL(touchscreen_parse_properties); |