Merge tag 'v3.19-rc4' into next

Merge with mainline to bring in the latest thermal and other changes.

8 files changed, 89 insertions, 28 deletions

diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index dd2fd397466a..f719f28d370c 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -846,8 +846,8 @@ static void alps_process_packet_v4(struct psmouse *psmouse)
                 f->fingers = alps_process_bitmap(priv, f);
         }
 
-        f->left = packet[4] & 0x01;
-        f->right = packet[4] & 0x02;
+        f->left = !!(packet[4] & 0x01);
+        f->right = !!(packet[4] & 0x02);
 
         f->st.x = ((packet[1] & 0x7f) << 4) | ((packet[3] & 0x30) >> 2) |
                   ((packet[0] & 0x30) >> 4);
@@ -1238,7 +1238,13 @@ static psmouse_ret_t alps_process_byte(struct psmouse *psmouse)
 {
         struct alps_data *priv = psmouse->private;
 
-        if ((psmouse->packet[0] & 0xc8) == 0x08) { /* PS/2 packet */
+        /*
+         * Check if we are dealing with a bare PS/2 packet, presumably from
+         * a device connected to the external PS/2 port. Because bare PS/2
+         * protocol does not have enough constant bits to self-synchronize
+         * properly we only do this if the device is fully synchronized.
+         */
+        if (!psmouse->out_of_sync_cnt && (psmouse->packet[0] & 0xc8) == 0x08) {
                 if (psmouse->pktcnt == 3) {
                         alps_report_bare_ps2_packet(psmouse, psmouse->packet,
                                                     true);
@@ -1262,12 +1268,27 @@ static psmouse_ret_t alps_process_byte(struct psmouse *psmouse)
         }
 
         /* Bytes 2 - pktsize should have 0 in the highest bit */
-        if ((priv->proto_version < ALPS_PROTO_V5) &&
+        if (priv->proto_version < ALPS_PROTO_V5 &&
             psmouse->pktcnt >= 2 && psmouse->pktcnt <= psmouse->pktsize &&
             (psmouse->packet[psmouse->pktcnt - 1] & 0x80)) {
                 psmouse_dbg(psmouse, "refusing packet[%i] = %x\n",
                             psmouse->pktcnt - 1,
                             psmouse->packet[psmouse->pktcnt - 1]);
+
+                if (priv->proto_version == ALPS_PROTO_V3 &&
+                    psmouse->pktcnt == psmouse->pktsize) {
+                        /*
+                         * Some Dell boxes, such as Latitude E6440 or E7440
+                         * with closed lid, quite often smash last byte of
+                         * otherwise valid packet with 0xff. Given that the
+                         * next packet is very likely to be valid let's
+                         * report PSMOUSE_FULL_PACKET but not process data,
+                         * rather than reporting PSMOUSE_BAD_DATA and
+                         * filling the logs.
+                         */
+                        return PSMOUSE_FULL_PACKET;
+                }
+
                 return PSMOUSE_BAD_DATA;
         }
 
@@ -2481,6 +2502,9 @@ int alps_init(struct psmouse *psmouse)
         /* We are having trouble resyncing ALPS touchpads so disable it for now */
         psmouse->resync_time = 0;
 
+        /* Allow 2 invalid packets without resetting device */
+        psmouse->resetafter = psmouse->pktsize * 2;
+
         return 0;
 
 init_fail:
diff --git a/drivers/input/mouse/amimouse.c b/drivers/input/mouse/amimouse.c
index 62ec52b2e347..a7fd8f22ba56 100644
--- a/drivers/input/mouse/amimouse.c
+++ b/drivers/input/mouse/amimouse.c
@@ -141,7 +141,6 @@ static struct platform_driver amimouse_driver = {
         .remove = __exit_p(amimouse_remove),
         .driver   = {
                 .name   = "amiga-mouse",
-                .owner  = THIS_MODULE,
         },
 };
 
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index 06fc6e76ffbe..f2b978026407 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -428,14 +428,6 @@ static void elantech_report_trackpoint(struct psmouse *psmouse,
         int x, y;
         u32 t;
 
-        if (dev_WARN_ONCE(&psmouse->ps2dev.serio->dev,
-                          !tp_dev,
-                          psmouse_fmt("Unexpected trackpoint message\n"))) {
-                if (etd->debug == 1)
-                        elantech_packet_dump(psmouse);
-                return;
-        }
-
         t = get_unaligned_le32(&packet[0]);
 
         switch (t & ~7U) {
@@ -563,6 +555,7 @@ static void elantech_input_sync_v4(struct psmouse *psmouse)
         } else {
                 input_report_key(dev, BTN_LEFT, packet[0] & 0x01);
                 input_report_key(dev, BTN_RIGHT, packet[0] & 0x02);
+                input_report_key(dev, BTN_MIDDLE, packet[0] & 0x04);
         }
 
         input_mt_report_pointer_emulation(dev, true);
@@ -792,6 +785,9 @@ static int elantech_packet_check_v4(struct psmouse *psmouse)
         unsigned char packet_type = packet[3] & 0x03;
         bool sanity_check;
 
+        if (etd->tp_dev && (packet[3] & 0x0f) == 0x06)
+                return PACKET_TRACKPOINT;
+
         /*
          * Sanity check based on the constant bits of a packet.
          * The constant bits change depending on the value of
@@ -877,10 +873,19 @@ static psmouse_ret_t elantech_process_byte(struct psmouse *psmouse)
 
         case 4:
                 packet_type = elantech_packet_check_v4(psmouse);
-                if (packet_type == PACKET_UNKNOWN)
+                switch (packet_type) {
+                case PACKET_UNKNOWN:
                         return PSMOUSE_BAD_DATA;
 
-                elantech_report_absolute_v4(psmouse, packet_type);
+                case PACKET_TRACKPOINT:
+                        elantech_report_trackpoint(psmouse, packet_type);
+                        break;
+
+                default:
+                        elantech_report_absolute_v4(psmouse, packet_type);
+                        break;
+                }
+
                 break;
         }
 
@@ -1120,6 +1125,22 @@ static void elantech_set_buttonpad_prop(struct psmouse *psmouse)
 }
 
 /*
+ * Some hw_version 4 models do have a middle button
+ */
+static const struct dmi_system_id elantech_dmi_has_middle_button[] = {
+#if defined(CONFIG_DMI) && defined(CONFIG_X86)
+        {
+                /* Fujitsu H730 has a middle button */
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "CELSIUS H730"),
+                },