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path: root/drivers/input/mouse/psmouse-base.c
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Diffstat (limited to 'drivers/input/mouse/psmouse-base.c')
-rw-r--r--drivers/input/mouse/psmouse-base.c23
1 files changed, 12 insertions, 11 deletions
diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index 525de2e7c08b..c2bd8665e9f2 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -750,19 +750,20 @@ static int psmouse_extensions(struct psmouse *psmouse,
*/
if (psmouse_do_detect(focaltech_detect, psmouse, set_properties) == 0) {
if (max_proto > PSMOUSE_IMEX) {
- if (!set_properties || focaltech_init(psmouse) == 0) {
- if (IS_ENABLED(CONFIG_MOUSE_PS2_FOCALTECH))
- return PSMOUSE_FOCALTECH;
- /*
- * Note that we need to also restrict
- * psmouse_max_proto so that psmouse_initialize()
- * does not try to reset rate and resolution,
- * because even that upsets the device.
- */
- psmouse_max_proto = PSMOUSE_PS2;
- return PSMOUSE_PS2;
+ if (IS_ENABLED(CONFIG_MOUSE_PS2_FOCALTECH) &&
+ (!set_properties || focaltech_init(psmouse) == 0)) {
+ return PSMOUSE_FOCALTECH;
}
}
+ /*
+ * Restrict psmouse_max_proto so that psmouse_initialize()
+ * does not try to reset rate and resolution, because even
+ * that upsets the device.
+ * This also causes us to basically fall through to basic
+ * protocol detection, where we fully reset the mouse,
+ * and set it up as bare PS/2 protocol device.
+ */
+ psmouse_max_proto = max_proto = PSMOUSE_PS2;
}
/*