Input: psmouse - allow drivers to use psmouse_{de,}activate

Other drivers duplicate this code; no sense in having it be private
to psmouse-base.

Signed-off-by: Andres Salomon <[e-mail]>
Signed-off-by: Dmitry Torokhov <[e-mail]>

drivers/input/mouse/psmouse-base.c

···
  * psmouse_activate() enables the mouse so that we get motion reports from it.
  */
 
-static void psmouse_activate(struct psmouse *psmouse)
+int psmouse_activate(struct psmouse *psmouse)
 {
-	if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_ENABLE))
+	if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_ENABLE)) {
 		psmouse_warn(psmouse, "Failed to enable mouse on %s\n",
 			     psmouse->ps2dev.serio->phys);
+		return -1;
+	}
 
 	psmouse_set_state(psmouse, PSMOUSE_ACTIVATED);
+	return 0;
 }
-
 
 /*
  * psmouse_deactivate() puts the mouse into poll mode so that we don't get motion
  * reports from it unless we explicitly request it.
  */
 
-static void psmouse_deactivate(struct psmouse *psmouse)
+int psmouse_deactivate(struct psmouse *psmouse)
 {
-	if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_DISABLE))
+	if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_DISABLE)) {
 		psmouse_warn(psmouse, "Failed to deactivate mouse on %s\n",
 			     psmouse->ps2dev.serio->phys);
+		return -1;
+	}
 
 	psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
+	return 0;
 }
 
 

drivers/input/mouse/psmouse.h

···
 void psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state);
 void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution);
 psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse);
+int psmouse_activate(struct psmouse *psmouse);
+int psmouse_deactivate(struct psmouse *psmouse);
 
 struct psmouse_attribute {
 	struct device_attribute dattr;