Input: psmouse - allow disabing certain protocol extensions

Allow ALPS, LOGIPS2PP, LIFEBOOK, TRACKPOINT and TOUCHKIT protocol
extensions of psmouse to be disabled during compilation. This will
allow users save some memory when they are sure that they will only
use a certain type of mice.

Signed-off-by: Andres Salomon <dilinger@debian.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 15 insertions, 1 deletions

diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index 33a3251e0766..e6c9e7bb1f99 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -570,7 +570,9 @@ static int psmouse_extensions(struct psmouse *psmouse,
                 return PSMOUSE_THINKPS;
 
 /*
- * Try Synaptics TouchPad
+ * Try Synaptics TouchPad. Note that probing is done even if Synaptics protocol
+ * support is disabled in config - we need to know if it is synaptics so we
+ * can reset it properly after probing for intellimouse.
  */
         if (max_proto > PSMOUSE_PS2 && synaptics_detect(psmouse, set_properties) == 0) {
                 synaptics_hardware = 1;
@@ -661,12 +663,14 @@ static const struct psmouse_protocol psmouse_protocols[] = {
                 .maxproto       = 1,
                 .detect         = ps2bare_detect,
         },
+#ifdef CONFIG_MOUSE_PS2_LOGIPS2PP
         {
                 .type           = PSMOUSE_PS2PP,
                 .name           = "PS2++",
                 .alias          = "logitech",
                 .detect         = ps2pp_init,
         },
+#endif
         {
                 .type           = PSMOUSE_THINKPS,
                 .name           = "ThinkPS/2",
@@ -693,6 +697,7 @@ static const struct psmouse_protocol psmouse_protocols[] = {
                 .maxproto       = 1,
                 .detect         = im_explorer_detect,
         },
+#ifdef CONFIG_MOUSE_PS2_SYNAPTICS
         {
                 .type           = PSMOUSE_SYNAPTICS,
                 .name           = "SynPS/2",
@@ -700,6 +705,8 @@ static const struct psmouse_protocol psmouse_protocols[] = {
                 .detect         = synaptics_detect,
                 .init           = synaptics_init,
         },
+#endif
+#ifdef CONFIG_MOUSE_PS2_ALPS
         {
                 .type           = PSMOUSE_ALPS,
                 .name           = "AlpsPS/2",
@@ -707,24 +714,31 @@ static const struct psmouse_protocol psmouse_protocols[] = {
                 .detect         = alps_detect,
                 .init           = alps_init,
         },
+#endif
+#ifdef CONFIG_MOUSE_PS2_LIFEBOOK
         {
                 .type           = PSMOUSE_LIFEBOOK,
                 .name           = "LBPS/2",
                 .alias          = "lifebook",
                 .init           = lifebook_init,
         },
+#endif
+#ifdef CONFIG_MOUSE_PS2_TRACKPOINT
         {
                 .type           = PSMOUSE_TRACKPOINT,
                 .name           = "TPPS/2",
                 .alias          = "trackpoint",
                 .detect         = trackpoint_detect,
         },
+#endif
+#ifdef CONFIG_MOUSE_PS2_TOUCHKIT
         {
                 .type           = PSMOUSE_TOUCHKIT_PS2,
                 .name           = "touchkitPS/2",
                 .alias          = "touchkit",
                 .detect         = touchkit_ps2_detect,
         },
+#endif
         {
                 .type           = PSMOUSE_AUTO,
                 .name           = "auto",