Input: synaptics - fuzz position for touchpad with reduced filtering

[~andy/linux] / drivers / input / mouse / synaptics.c

diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index 477d1eaea8b5783d255ef5c25127d3aec8b6fd40..363aedf8131dee26e769421463fecf51ecc5cca4 100644 (file)
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -684,23 +684,25 @@ static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse)
 static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)
 {
        int i;
+       int fuzz = SYN_CAP_REDUCED_FILTERING(priv->ext_cap_0c) ?
+                       SYN_REDUCED_FILTER_FUZZ : 0;
 
        __set_bit(INPUT_PROP_POINTER, dev->propbit);
 
        __set_bit(EV_ABS, dev->evbit);
-       input_set_abs_params(dev, ABS_X,
-                            XMIN_NOMINAL, priv->x_max ?: XMAX_NOMINAL, 0, 0);
-       input_set_abs_params(dev, ABS_Y,
-                            YMIN_NOMINAL, priv->y_max ?: YMAX_NOMINAL, 0, 0);
+       input_set_abs_params(dev, ABS_X, XMIN_NOMINAL,
+                            priv->x_max ?: XMAX_NOMINAL, fuzz, 0);
+       input_set_abs_params(dev, ABS_Y, YMIN_NOMINAL,
+                            priv->y_max ?: YMAX_NOMINAL, fuzz, 0);
        input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0);
 
        if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) {
                __set_bit(INPUT_PROP_SEMI_MT, dev->propbit);
                input_mt_init_slots(dev, 2);
                input_set_abs_params(dev, ABS_MT_POSITION_X, XMIN_NOMINAL,
-                                    priv->x_max ?: XMAX_NOMINAL, 0, 0);
+                                    priv->x_max ?: XMAX_NOMINAL, fuzz, 0);
                input_set_abs_params(dev, ABS_MT_POSITION_Y, YMIN_NOMINAL,
-                                    priv->y_max ?: YMAX_NOMINAL, 0, 0);
+                                    priv->y_max ?: YMAX_NOMINAL, fuzz, 0);
 
                input_abs_set_res(dev, ABS_MT_POSITION_X, priv->x_res);
                input_abs_set_res(dev, ABS_MT_POSITION_Y, priv->y_res);
@@ -974,4 +976,3 @@ bool synaptics_supported(void)
 }
 
 #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */
-