Input: synaptic_i2c - make unnecessarily global functions static

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/mouse/synaptics_i2c.c b/drivers/input/mouse/synaptics_i2c.c
index 7283c78..9867dfe 100644
--- a/drivers/input/mouse/synaptics_i2c.c
+++ b/drivers/input/mouse/synaptics_i2c.c
@@ -420,8 +420,8 @@
 }
 
 /* Control the Device polling rate / Work Handler sleep time */
-unsigned long synaptics_i2c_adjust_delay(struct synaptics_i2c *touch,
-					 bool have_data)
+static unsigned long synaptics_i2c_adjust_delay(struct synaptics_i2c *touch,
+						bool have_data)
 {
 	unsigned long delay, nodata_count_thres;
 
@@ -520,7 +520,7 @@
 	__set_bit(BTN_LEFT, input->keybit);
 }
 
-struct synaptics_i2c *synaptics_i2c_touch_create(struct i2c_client *client)
+static struct synaptics_i2c *synaptics_i2c_touch_create(struct i2c_client *client)
 {
 	struct synaptics_i2c *touch;