Input: elants_i2c - report resolution information for touch major

This patch supports reporting resolution for ABS_MT_TOUCH_MAJOR event.
This information is needed in showing pressure/width radius.

Signed-off-by: Johnny Chuang <[email protected]>
Reviewed-by: Harry Cutts <[email protected]>
Reviewed-by: Peter Hutterer <[email protected]>
Acked-by: Benjamin Tissoires <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>

Author: ElanJohnnyChuang

drivers/input/touchscreen/elants_i2c.c

@@ -1309,6 +1309,7 @@ static int elants_i2c_probe(struct i2c_client *client,
 	input_set_abs_params(ts->input, ABS_MT_PRESSURE, 0, 255, 0, 0);
 	input_abs_set_res(ts->input, ABS_MT_POSITION_X, ts->x_res);
 	input_abs_set_res(ts->input, ABS_MT_POSITION_Y, ts->y_res);
+	input_abs_set_res(ts->input, ABS_MT_TOUCH_MAJOR, 1);
 
 	error = input_register_device(ts->input);
 	if (error) {