Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[sfrench/cifs-2.6.git] / drivers / input / mouse / alps.c
index 113d6f1516a54956f74635f7eb51231ab5490052..4d246861d692b810f3074aa7917cda86893ac6c2 100644 (file)
@@ -20,6 +20,7 @@
 #include <linux/input/mt.h>
 #include <linux/serio.h>
 #include <linux/libps2.h>
+#include <linux/dmi.h>
 
 #include "psmouse.h"
 #include "alps.h"
@@ -99,6 +100,7 @@ static const struct alps_nibble_commands alps_v6_nibble_commands[] = {
 #define ALPS_FOUR_BUTTONS      0x40    /* 4 direction button present */
 #define ALPS_PS2_INTERLEAVED   0x80    /* 3-byte PS/2 packet interleaved with
                                           6-byte ALPS packet */
+#define ALPS_DELL              0x100   /* device is a Dell laptop */
 #define ALPS_BUTTONPAD         0x200   /* device is a clickpad */
 
 static const struct alps_model_info alps_model_data[] = {
@@ -251,9 +253,9 @@ static void alps_process_packet_v1_v2(struct psmouse *psmouse)
                return;
        }
 
-       /* Non interleaved V2 dualpoint has separate stick button bits */
+       /* Dell non interleaved V2 dualpoint has separate stick button bits */
        if (priv->proto_version == ALPS_PROTO_V2 &&
-           priv->flags == (ALPS_PASS | ALPS_DUALPOINT)) {
+           priv->flags == (ALPS_DELL | ALPS_PASS | ALPS_DUALPOINT)) {
                left |= packet[0] & 1;
                right |= packet[0] & 2;
                middle |= packet[0] & 4;
@@ -2550,6 +2552,8 @@ static int alps_set_protocol(struct psmouse *psmouse,
        priv->byte0 = protocol->byte0;
        priv->mask0 = protocol->mask0;
        priv->flags = protocol->flags;
+       if (dmi_name_in_vendors("Dell"))
+               priv->flags |= ALPS_DELL;
 
        priv->x_max = 2000;
        priv->y_max = 1400;