Input: synaptics - tell users to report when they should be using rmi-smbus

Users should really consider switching to rmi-smbus instead of plain PS/2.
Notify them that they should report a missing pnpID in the file.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index 604aa3a..16c3046 100644 (file)
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -1739,8 +1739,16 @@ static int synaptics_setup_intertouch(struct psmouse *psmouse,
 
        if (synaptics_intertouch == SYNAPTICS_INTERTOUCH_NOT_SET) {
                if (!psmouse_matches_pnp_id(psmouse, topbuttonpad_pnp_ids) &&
-                   !psmouse_matches_pnp_id(psmouse, smbus_pnp_ids))
+                   !psmouse_matches_pnp_id(psmouse, smbus_pnp_ids)) {
+
+                       if (!psmouse_matches_pnp_id(psmouse, forcepad_pnp_ids))
+                               psmouse_info(psmouse,
+                                            "Your touchpad (%s) says it can support a different bus. "
+                                            "If i2c-hid and hid-rmi are not used, you might want to try setting psmouse.synaptics_intertouch to 1 and report this to linux-input@vger.kernel.org.\n",
+                                            psmouse->ps2dev.serio->firmware_id);
+
                        return -ENXIO;
+               }
        }
 
        psmouse_info(psmouse, "Trying to set up SMBus access\n");