3 files changed, 33 insertions, 8 deletions

diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index 09b93b11a274..e2a9867c19d5 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -1210,18 +1210,28 @@ static int elantech_reconnect(struct psmouse *psmouse)
  */
 static int elantech_set_properties(struct elantech_data *etd)
 {
+        /* This represents the version of IC body. */
         int ver = (etd->fw_version & 0x0f0000) >> 16;
 
+        /* Early version of Elan touchpads doesn't obey the rule. */
         if (etd->fw_version < 0x020030 || etd->fw_version == 0x020600)
                 etd->hw_version = 1;
-        else if (etd->fw_version < 0x150600)
-                etd->hw_version = 2;
-        else if (ver == 5)
-                etd->hw_version = 3;
-        else if (ver == 6)
-                etd->hw_version = 4;
-        else
-                return -1;
+        else {
+                switch (ver) {
+                case 2:
+                case 4:
+                        etd->hw_version = 2;
+                        break;
+                case 5:
+                        etd->hw_version = 3;
+                        break;
+                case 6:
+                        etd->hw_version = 4;
+                        break;
+                default:
+                        return -1;
+                }
+        }
 
         /*
          * Turn on packet checking by default.
diff --git a/drivers/input/serio/ams_delta_serio.c b/drivers/input/serio/ams_delta_serio.c
index 4b2a42f9f0bb..d4d08bd9205b 100644
--- a/drivers/input/serio/ams_delta_serio.c
+++ b/drivers/input/serio/ams_delta_serio.c
@@ -24,6 +24,7 @@
 #include <linux/irq.h>
 #include <linux/serio.h>
 #include <linux/slab.h>
+#include <linux/module.h>
 
 #include <asm/mach-types.h>
 #include <plat/board-ams-delta.h>
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index bb9f5d31f0d0..b4cfc6c8be89 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -431,6 +431,13 @@ static const struct dmi_system_id __initconst i8042_dmi_nomux_table[] = {
                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V13"),
                 },
         },
+        {
+                /* Newer HP Pavilion dv4 models */
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv4 Notebook PC"),
+                },
+        },
         { }
 };
 
@@ -560,6 +567,13 @@ static const struct dmi_system_id __initconst i8042_dmi_notimeout_table[] = {
                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V13"),
                 },
         },
+        {
+                /* Newer HP Pavilion dv4 models */
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv4 Notebook PC"),
+                },
+        },
         { }
 };