Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

[pandora-kernel.git] / drivers / input / mouse / synaptics.c

diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index da392c2..aa186cf 100644 (file)
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -755,23 +755,26 @@ static int synaptics_reconnect(struct psmouse *psmouse)
 {
        struct synaptics_data *priv = psmouse->private;
        struct synaptics_data old_priv = *priv;
+       int retry = 0;
+       int error;
 
-       psmouse_reset(psmouse);
+       do {
+               psmouse_reset(psmouse);
+               error = synaptics_detect(psmouse, 0);
+       } while (error && ++retry < 3);
 
-       if (synaptics_detect(psmouse, 0))
+       if (error)
                return -1;
 
+       if (retry > 1)
+               printk(KERN_DEBUG "Synaptics reconnected after %d tries\n",
+                       retry);
+
        if (synaptics_query_hardware(psmouse)) {
                printk(KERN_ERR "Unable to query Synaptics hardware.\n");
                return -1;
        }
 
-       if (old_priv.identity != priv->identity ||
-           old_priv.model_id != priv->model_id ||
-           old_priv.capabilities != priv->capabilities ||
-           old_priv.ext_cap != priv->ext_cap)
-               return -1;
-
        if (synaptics_set_absolute_mode(psmouse)) {
                printk(KERN_ERR "Unable to initialize Synaptics hardware.\n");
                return -1;
@@ -782,6 +785,19 @@ static int synaptics_reconnect(struct psmouse *psmouse)
                return -1;
        }
 
+       if (old_priv.identity != priv->identity ||
+           old_priv.model_id != priv->model_id ||
+           old_priv.capabilities != priv->capabilities ||
+           old_priv.ext_cap != priv->ext_cap) {
+               printk(KERN_ERR "Synaptics hardware appears to be different: "
+                       "id(%ld-%ld), model(%ld-%ld), caps(%lx-%lx), ext(%lx-%lx).\n",
+                       old_priv.identity, priv->identity,
+                       old_priv.model_id, priv->model_id,
+                       old_priv.capabilities, priv->capabilities,
+                       old_priv.ext_cap, priv->ext_cap);
+               return -1;
+       }
+
        return 0;
 }