tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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>
+6
-4
+6
-4
drivers/input/touchscreen/of_touchscreen.c
+6
-4
drivers/input/touchscreen/of_touchscreen.c
···
71
71
72
72
axis = multitouch ? ABS_MT_POSITION_X : ABS_X;
73
73
data_present = touchscreen_get_prop_u32(np, "touchscreen-size-x",
74
-
input_abs_get_max(dev, axis),
74
+
input_abs_get_max(dev,
75
+
axis) + 1,
75
76
&maximum) |
76
77
touchscreen_get_prop_u32(np, "touchscreen-fuzz-x",
77
78
input_abs_get_fuzz(dev, axis),
78
79
&fuzz);
79
80
if (data_present)
80
-
touchscreen_set_params(dev, axis, maximum, fuzz);
81
+
touchscreen_set_params(dev, axis, maximum - 1, fuzz);
81
82
82
83
axis = multitouch ? ABS_MT_POSITION_Y : ABS_Y;
83
84
data_present = touchscreen_get_prop_u32(np, "touchscreen-size-y",
84
-
input_abs_get_max(dev, axis),
85
+
input_abs_get_max(dev,
86
+
axis) + 1,
85
87
&maximum) |
86
88
touchscreen_get_prop_u32(np, "touchscreen-fuzz-y",
87
89
input_abs_get_fuzz(dev, axis),
88
90
&fuzz);
89
91
if (data_present)
90
-
touchscreen_set_params(dev, axis, maximum, fuzz);
92
+
touchscreen_set_params(dev, axis, maximum - 1, fuzz);
91
93
92
94
axis = multitouch ? ABS_MT_PRESSURE : ABS_PRESSURE;
93
95
data_present = touchscreen_get_prop_u32(np, "touchscreen-max-pressure",