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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>
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@ -71,23 +71,25 @@ void touchscreen_parse_of_params(struct input_dev *dev, bool multitouch)
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axis = multitouch ? ABS_MT_POSITION_X : ABS_X;
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data_present = touchscreen_get_prop_u32(np, "touchscreen-size-x",
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input_abs_get_max(dev, axis),
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input_abs_get_max(dev,
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axis) + 1,
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&maximum) |
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touchscreen_get_prop_u32(np, "touchscreen-fuzz-x",
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input_abs_get_fuzz(dev, axis),
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&fuzz);
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if (data_present)
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touchscreen_set_params(dev, axis, maximum, fuzz);
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touchscreen_set_params(dev, axis, maximum - 1, fuzz);
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axis = multitouch ? ABS_MT_POSITION_Y : ABS_Y;
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data_present = touchscreen_get_prop_u32(np, "touchscreen-size-y",
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input_abs_get_max(dev, axis),
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input_abs_get_max(dev,
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axis) + 1,
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&maximum) |
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touchscreen_get_prop_u32(np, "touchscreen-fuzz-y",
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input_abs_get_fuzz(dev, axis),
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&fuzz);
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if (data_present)
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touchscreen_set_params(dev, axis, maximum, fuzz);
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touchscreen_set_params(dev, axis, maximum - 1, fuzz);
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axis = multitouch ? ABS_MT_PRESSURE : ABS_PRESSURE;
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data_present = touchscreen_get_prop_u32(np, "touchscreen-max-pressure",
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