4 files changed, 82 insertions, 15 deletions

diff --git a/drivers/input/keyboard/adp5588-keys.c b/drivers/input/keyboard/adp5588-keys.c
index bb3b57bea8ba..5ef7fcf0e250 100644
--- a/drivers/input/keyboard/adp5588-keys.c
+++ b/drivers/input/keyboard/adp5588-keys.c
@@ -76,8 +76,18 @@ static int adp5588_gpio_get_value(struct gpio_chip *chip, unsigned off)
         struct adp5588_kpad *kpad = container_of(chip, struct adp5588_kpad, gc);
         unsigned int bank = ADP5588_BANK(kpad->gpiomap[off]);
         unsigned int bit = ADP5588_BIT(kpad->gpiomap[off]);
+        int val;
 
-        return !!(adp5588_read(kpad->client, GPIO_DAT_STAT1 + bank) & bit);
+        mutex_lock(&kpad->gpio_lock);
+
+        if (kpad->dir[bank] & bit)
+                val = kpad->dat_out[bank];
+        else
+                val = adp5588_read(kpad->client, GPIO_DAT_STAT1 + bank);
+
+        mutex_unlock(&kpad->gpio_lock);
+
+        return !!(val & bit);
 }
 
 static void adp5588_gpio_set_value(struct gpio_chip *chip,
diff --git a/drivers/input/misc/da9052_onkey.c b/drivers/input/misc/da9052_onkey.c
index 1f695f229ea8..184c8f21ab59 100644
--- a/drivers/input/misc/da9052_onkey.c
+++ b/drivers/input/misc/da9052_onkey.c
@@ -27,29 +27,32 @@ struct da9052_onkey {
 
 static void da9052_onkey_query(struct da9052_onkey *onkey)
 {
-        int key_stat;
+        int ret;
 
-        key_stat = da9052_reg_read(onkey->da9052, DA9052_EVENT_B_REG);
-        if (key_stat < 0) {
+        ret = da9052_reg_read(onkey->da9052, DA9052_STATUS_A_REG);
+        if (ret < 0) {
                 dev_err(onkey->da9052->dev,
-                        "Failed to read onkey event %d\n", key_stat);
+                        "Failed to read onkey event err=%d\n", ret);
         } else {
                 /*
                  * Since interrupt for deassertion of ONKEY pin is not
                  * generated, onkey event state determines the onkey
                  * button state.
                  */
-                key_stat &= DA9052_EVENTB_ENONKEY;
-                input_report_key(onkey->input, KEY_POWER, key_stat);
+                bool pressed = !(ret & DA9052_STATUSA_NONKEY);
+
+                input_report_key(onkey->input, KEY_POWER, pressed);
                 input_sync(onkey->input);
-        }
 
-        /*
-         * Interrupt is generated only when the ONKEY pin is asserted.
-         * Hence the deassertion of the pin is simulated through work queue.
-         */
-        if (key_stat)
-                schedule_delayed_work(&onkey->work, msecs_to_jiffies(50));
+                /*
+                 * Interrupt is generated only when the ONKEY pin
+                 * is asserted.  Hence the deassertion of the pin
+                 * is simulated through work queue.
+                 */
+                if (pressed)
+                        schedule_delayed_work(&onkey->work,
+                                                msecs_to_jiffies(50));
+        }
 }
 
 static void da9052_onkey_work(struct work_struct *work)
diff --git a/drivers/input/mouse/cypress_ps2.c b/drivers/input/mouse/cypress_ps2.c
index 87095e2f5153..8af34ffe208b 100644
--- a/drivers/input/mouse/cypress_ps2.c
+++ b/drivers/input/mouse/cypress_ps2.c
@@ -409,7 +409,6 @@ static int cypress_set_input_params(struct input_dev *input,
         __clear_bit(REL_X, input->relbit);
         __clear_bit(REL_Y, input->relbit);
 
-        __set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
         __set_bit(EV_KEY, input->evbit);
         __set_bit(BTN_LEFT, input->keybit);
         __set_bit(BTN_RIGHT, input->keybit);
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index 26386f9d2569..d8d49d10f9bb 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -265,11 +265,22 @@ static int synaptics_identify(struct psmouse *psmouse)
  * Read touchpad resolution and maximum reported coordinates
  * Resolution is left zero if touchpad does not support the query
  */
+
+static const int *quirk_min_max;
+
 static int synaptics_resolution(struct psmouse *psmouse)
 {
         struct synaptics_data *priv = psmouse->private;
         unsigned char resp[3];
 
+        if (quirk_min_max) {
+                priv->x_min = quirk_min_max[0];
+                priv->x_max = quirk_min_max[1];
+                priv->y_min = quirk_min_max[2];
+                priv->y_max = quirk_min_max[3];
+                return 0;
+        }
+
         if (SYN_ID_MAJOR(priv->identity) < 4)
                 return 0;
 
@@ -1485,10 +1496,54 @@ static const struct dmi_system_id olpc_dmi_table[] __initconst = {
         { }
 };
 
+static const struct dmi_system_id min_max_dmi_table[] __initconst = {
+#if defined(CONFIG_DMI)
+        {
+                /* Lenovo ThinkPad Helix */
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+                        DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad Helix"),
+                },
+                .driver_data = (int []){1024, 5052, 2258, 4832},
+        },
+        {
+                /* Lenovo ThinkPad X240 */
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+                        DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X240"),
+                },
+                .driver_data = (int []){1232, 5710, 1156, 4696},
+        },
+        {
+                /* Lenovo ThinkPad T440s */
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+                        DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T440"),
+                },
+                .driver_data = (int []){1024, 5112, 2024, 4832},
+        },
+        {
+                /* Lenovo ThinkPad T540p */
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+                        DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T540"),
+                },
+                .driver_data = (int []){1024, 5056, 2058, 4832},
+        },
+#endif
+        { }
+};
+
 void __init synaptics_module_init(void)
 {
+        const struct dmi_system_id *min_max_dmi;
+
         impaired_toshiba_kbc = dmi_check_system(toshiba_dmi_table);
         broken_olpc_ec = dmi_check_system(olpc_dmi_table);
+
+        min_max_dmi = dmi_first_match(min_max_dmi_table);
+        if (min_max_dmi)
+                quirk_min_max = min_max_dmi->driver_data;
 }
 
 static int __synaptics_init(struct psmouse *psmouse, bool absolute_mode)