8 files changed, 189 insertions, 37 deletions

diff --git a/drivers/input/keyboard/tc3589x-keypad.c b/drivers/input/keyboard/tc3589x-keypad.c
index 2fb0d76a04c4..208de7cbb7fa 100644
--- a/drivers/input/keyboard/tc3589x-keypad.c
+++ b/drivers/input/keyboard/tc3589x-keypad.c
@@ -70,8 +70,6 @@
 #define TC3589x_EVT_INT_CLR     0x2
 #define TC3589x_KBD_INT_CLR     0x1
 
-#define TC3589x_KBD_KEYMAP_SIZE     64
-
 /**
  * struct tc_keypad - data structure used by keypad driver
  * @tc3589x:    pointer to tc35893
@@ -88,7 +86,7 @@ struct tc_keypad {
         const struct tc3589x_keypad_platform_data *board;
         unsigned int krow;
         unsigned int kcol;
-        unsigned short keymap[TC3589x_KBD_KEYMAP_SIZE];
+        unsigned short *keymap;
         bool keypad_stopped;
 };
 
@@ -338,12 +336,14 @@ static int tc3589x_keypad_probe(struct platform_device *pdev)
 
         error = matrix_keypad_build_keymap(plat->keymap_data, NULL,
                                            TC3589x_MAX_KPROW, TC3589x_MAX_KPCOL,
-                                           keypad->keymap, input);
+                                           NULL, input);
         if (error) {
                 dev_err(&pdev->dev, "Failed to build keymap\n");
                 goto err_free_mem;
         }
 
+        keypad->keymap = input->keycode;
+
         input_set_capability(input, EV_MSC, MSC_SCAN);
         if (!plat->no_autorepeat)
                 __set_bit(EV_REP, input->evbit);
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 7b99fc7c9438..0238e0e14335 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -490,6 +490,29 @@ static void alps_decode_rushmore(struct alps_fields *f, unsigned char *p)
         f->y_map |= (p[5] & 0x20) << 6;
 }
 
+static void alps_decode_dolphin(struct alps_fields *f, unsigned char *p)
+{
+        f->first_mp = !!(p[0] & 0x02);
+        f->is_mp = !!(p[0] & 0x20);
+
+        f->fingers = ((p[0] & 0x6) >> 1 |
+                     (p[0] & 0x10) >> 2);
+        f->x_map = ((p[2] & 0x60) >> 5) |
+                   ((p[4] & 0x7f) << 2) |
+                   ((p[5] & 0x7f) << 9) |
+                   ((p[3] & 0x07) << 16) |
+                   ((p[3] & 0x70) << 15) |
+                   ((p[0] & 0x01) << 22);
+        f->y_map = (p[1] & 0x7f) |
+                   ((p[2] & 0x1f) << 7);
+
+        f->x = ((p[1] & 0x7f) | ((p[4] & 0x0f) << 7));
+        f->y = ((p[2] & 0x7f) | ((p[4] & 0xf0) << 3));
+        f->z = (p[0] & 4) ? 0 : p[5] & 0x7f;
+
+        alps_decode_buttons_v3(f, p);
+}
+
 static void alps_process_touchpad_packet_v3(struct psmouse *psmouse)
 {
         struct alps_data *priv = psmouse->private;
@@ -874,7 +897,8 @@ static psmouse_ret_t alps_process_byte(struct psmouse *psmouse)
         }
 
         /* Bytes 2 - pktsize should have 0 in the highest bit */
-        if (psmouse->pktcnt >= 2 && psmouse->pktcnt <= psmouse->pktsize &&
+        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,
@@ -994,8 +1018,7 @@ static int alps_rpt_cmd(struct psmouse *psmouse, int init_command,
         return 0;
 }
 
-static int alps_enter_command_mode(struct psmouse *psmouse,
-                                   unsigned char *resp)
+static int alps_enter_command_mode(struct psmouse *psmouse)
 {
         unsigned char param[4];
 
@@ -1004,14 +1027,12 @@ static int alps_enter_command_mode(struct psmouse *psmouse,
                 return -1;
         }
 
-        if (param[0] != 0x88 || (param[1] != 0x07 && param[1] != 0x08)) {
+        if ((param[0] != 0x88 || (param[1] != 0x07 && param[1] != 0x08)) &&
+            param[0] != 0x73) {
                 psmouse_dbg(psmouse,
                             "unknown response while entering command mode\n");
                 return -1;
         }
-
-        if (resp)
-                *resp = param[2];
         return 0;
 }
 
@@ -1176,7 +1197,7 @@ static int alps_passthrough_mode_v3(struct psmouse *psmouse,
 {
         int reg_val, ret = -1;
 
-        if (alps_enter_command_mode(psmouse, NULL))
+        if (alps_enter_command_mode(psmouse))
                 return -1;
 
         reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x0008);
@@ -1216,7 +1237,7 @@ static int alps_probe_trackstick_v3(struct psmouse *psmouse, int reg_base)
 {
         int ret = -EIO, reg_val;
 
-        if (alps_enter_command_mode(psmouse, NULL))
+        if (alps_enter_command_mode(psmouse))
                 goto error;
 
         reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x08);
@@ -1279,7 +1300,7 @@ static int alps_setup_trackstick_v3(struct psmouse *psmouse, int reg_base)
                  * supported by this driver. If bit 1 isn't set the packet
                  * format is different.
                  */
-                if (alps_enter_command_mode(psmouse, NULL) ||
+                if (alps_enter_command_mode(psmouse) ||
                     alps_command_mode_write_reg(psmouse,
                                                 reg_base + 0x08, 0x82) ||
                     alps_exit_command_mode(psmouse))
@@ -1306,7 +1327,7 @@ static int alps_hw_init_v3(struct psmouse *psmouse)
             alps_setup_trackstick_v3(psmouse, ALPS_REG_BASE_PINNACLE) == -EIO)
                 goto error;
 
-        if (alps_enter_command_mode(psmouse, NULL) ||
+        if (alps_enter_command_mode(psmouse) ||
             alps_absolute_mode_v3(psmouse)) {
                 psmouse_err(psmouse, "Failed to enter absolute mode\n");
                 goto error;
@@ -1381,7 +1402,7 @@ static int alps_hw_init_rushmore_v3(struct psmouse *psmouse)
                         priv->flags &= ~ALPS_DUALPOINT;
         }
 
-        if (alps_enter_command_mode(psmouse, NULL) ||
+        if (alps_enter_command_mode(psmouse) ||
             alps_command_mode_read_reg(psmouse, 0xc2d9) == -1 ||
             alps_command_mode_write_reg(psmouse, 0xc2cb, 0x00))
                 goto error;
@@ -1431,7 +1452,7 @@ static int alps_hw_init_v4(struct psmouse *psmouse)
         struct ps2dev *ps2dev = &psmouse->ps2dev;
         unsigned char param[4];
 
-        if (alps_enter_command_mode(psmouse, NULL))
+        if (alps_enter_command_mode(psmouse))
                 goto error;
 
         if (alps_absolute_mode_v4(psmouse)) {
@@ -1499,6 +1520,23 @@ error:
         return -1;
 }
 
+static int alps_hw_init_dolphin_v1(struct psmouse *psmouse)
+{
+        struct ps2dev *ps2dev = &psmouse->ps2dev;
+        unsigned char param[2];
+
+        /* This is dolphin "v1" as empirically defined by florin9doi */
+        param[0] = 0x64;
+        param[1] = 0x28;
+
+        if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) ||
+            ps2_command(ps2dev, &param[0], PSMOUSE_CMD_SETRATE) ||
+            ps2_command(ps2dev, &param[1], PSMOUSE_CMD_SETRATE))
+                return -1;
+
+        return 0;
+}
+
 static void alps_set_defaults(struct alps_data *priv)
 {
         priv->byte0 = 0x8f;
@@ -1532,6 +1570,21 @@ static void alps_set_defaults(struct alps_data *priv)
                 priv->nibble_commands = alps_v4_nibble_commands;
                 priv->addr_command = PSMOUSE_CMD_DISABLE;
                 break;
+        case ALPS_PROTO_V5:
+                priv->hw_init = alps_hw_init_dolphin_v1;
+                priv->process_packet = alps_process_packet_v3;
+                priv->decode_fields = alps_decode_dolphin;
+                priv->set_abs_params = alps_set_abs_params_mt;
+                priv->nibble_commands = alps_v3_nibble_commands;
+                priv->addr_command = PSMOUSE_CMD_RESET_WRAP;
+                priv->byte0 = 0xc8;
+                priv->mask0 = 0xc8;
+                priv->flags = 0;
+                priv->x_max = 1360;
+                priv->y_max = 660;
+                priv->x_bits = 23;
+                priv->y_bits = 12;
+                break;
         }
 }
 
@@ -1592,6 +1645,12 @@ static int alps_identify(struct psmouse *psmouse, struct alps_data *priv)
 
         if (alps_match_table(psmouse, priv, e7, ec) == 0) {
                 return 0;
+        } else if (e7[0] == 0x73 && e7[1] == 0x03 && e7[2] == 0x50 &&
+                   ec[0] == 0x73 && ec[1] == 0x01) {
+                priv->proto_version = ALPS_PROTO_V5;
+                alps_set_defaults(priv);
+
+                return 0;
         } else if (ec[0] == 0x88 && ec[1] == 0x08) {
                 priv->proto_version = ALPS_PROTO_V3;
                 alps_set_defaults(priv);
diff --git a/drivers/input/mouse/alps.h b/drivers/input/mouse/alps.h
index 970480551b6e..eee59853b9ce 100644
--- a/drivers/input/mouse/alps.h
+++ b/drivers/input/mouse/alps.h
@@ -16,6 +16,7 @@
 #define ALPS_PROTO_V2   2
 #define ALPS_PROTO_V3   3
 #define ALPS_PROTO_V4   4
+#define ALPS_PROTO_V5   5
 
 /**
  * struct alps_model_info - touchpad ID table
diff --git a/drivers/input/mouse/cypress_ps2.c b/drivers/input/mouse/cypress_ps2.c
index 1673dc6c8092..f51765fff054 100644
--- a/drivers/input/mouse/cypress_ps2.c
+++ b/drivers/input/mouse/cypress_ps2.c
@@ -236,6 +236,13 @@ static int cypress_read_fw_version(struct psmouse *psmouse)
         cytp->fw_version = param[2] & FW_VERSION_MASX;
         cytp->tp_metrics_supported = (param[2] & TP_METRICS_MASK) ? 1 : 0;
 
+        /*
+         * Trackpad fw_version 11 (in Dell XPS12) yields a bogus response to
+         * CYTP_CMD_READ_TP_METRICS so do not try to use it. LP: #1103594.
+         */
+        if (cytp->fw_version >= 11)
+                cytp->tp_metrics_supported = 0;
+
         psmouse_dbg(psmouse, "cytp->fw_version = %d\n", cytp->fw_version);
         psmouse_dbg(psmouse, "cytp->tp_metrics_supported = %d\n",
                  cytp->tp_metrics_supported);
@@ -258,6 +265,9 @@ static int cypress_read_tp_metrics(struct psmouse *psmouse)
         cytp->tp_res_x = cytp->tp_max_abs_x / cytp->tp_width;
         cytp->tp_res_y = cytp->tp_max_abs_y / cytp->tp_high;
 
+        if (!cytp->tp_metrics_supported)
+                return 0;
+
         memset(param, 0, sizeof(param));
         if (cypress_send_ext_cmd(psmouse, CYTP_CMD_READ_TP_METRICS, param) == 0) {
                 /* Update trackpad parameters. */
@@ -315,18 +325,15 @@ static int cypress_read_tp_metrics(struct psmouse *psmouse)
 
 static int cypress_query_hardware(struct psmouse *psmouse)
 {
-        struct cytp_data *cytp = psmouse->private;
         int ret;
 
         ret = cypress_read_fw_version(psmouse);
         if (ret)
                 return ret;
 
-        if (cytp->tp_metrics_supported) {
-                ret = cypress_read_tp_metrics(psmouse);
-                if (ret)
-                        return ret;
-        }
+        ret = cypress_read_tp_metrics(psmouse);
+        if (ret)
+                return ret;
 
         return 0;
 }
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index 41b6fbf60112..1daa97913b7d 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -2017,6 +2017,9 @@ static const struct wacom_features wacom_features_0x100 =
 static const struct wacom_features wacom_features_0x101 =
         { "Wacom ISDv4 101",      WACOM_PKGLEN_MTTPC,     26202, 16325,  255,
           0, MTTPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x10D =
+        { "Wacom ISDv4 10D",      WACOM_PKGLEN_MTTPC,     26202, 16325,  255,
+          0, MTTPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0x4001 =
         { "Wacom ISDv4 4001",      WACOM_PKGLEN_MTTPC,     26202, 16325,  255,
           0, MTTPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
@@ -2201,6 +2204,7 @@ const struct usb_device_id wacom_ids[] = {
         { USB_DEVICE_WACOM(0xEF) },
         { USB_DEVICE_WACOM(0x100) },
         { USB_DEVICE_WACOM(0x101) },
+        { USB_DEVICE_WACOM(0x10D) },
         { USB_DEVICE_WACOM(0x4001) },
         { USB_DEVICE_WACOM(0x47) },
         { USB_DEVICE_WACOM(0xF4) },
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index 4f702b3ec1a3..434c3df250ca 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -236,7 +236,12 @@ static void __ads7846_disable(struct ads7846 *ts)
 /* Must be called with ts->lock held */
 static void __ads7846_enable(struct ads7846 *ts)
 {
-        regulator_enable(ts->reg);
+        int error;
+
+        error = regulator_enable(ts->reg);
+        if (error != 0)
+                dev_err(&ts->spi->dev, "Failed to enable supply: %d\n", error);
+
         ads7846_restart(ts);
 }
 
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index d04f810cb1dd..59aa24002c7b 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -176,11 +176,17 @@
 /* Define for MXT_GEN_COMMAND_T6 */
 #define MXT_BOOT_VALUE          0xa5
 #define MXT_BACKUP_VALUE        0x55
-#define MXT_BACKUP_TIME         25      /* msec */
-#define MXT_RESET_TIME          65      /* msec */
+#define MXT_BACKUP_TIME         50      /* msec */
+#define MXT_RESET_TIME          200     /* msec */
 
 #define MXT_FWRESET_TIME        175     /* msec */
 
+/* MXT_SPT_GPIOPWM_T19 field */
+#define MXT_GPIO0_MASK          0x04
+#define MXT_GPIO1_MASK          0x08
+#define MXT_GPIO2_MASK          0x10
+#define MXT_GPIO3_MASK          0x20
+
 /* Command to unlock bootloader */
 #define MXT_UNLOCK_CMD_MSB      0xaa
 #define MXT_UNLOCK_CMD_LSB      0xdc
@@ -212,6 +218,8 @@
 /* Touchscreen absolute values */
 #define MXT_MAX_AREA            0xff
 
+#define MXT_PIXELS_PER_MM       20
+
 struct mxt_info {
         u8 family_id;
         u8 variant_id;
@@ -243,6 +251,8 @@ struct mxt_data {
         const struct mxt_platform_data *pdata;
         struct mxt_object *object_table;
         struct mxt_info info;
+        bool is_tp;
+
         unsigned int irq;
         unsigned int max_x;
         unsigned int max_y;
@@ -251,6 +261,7 @@ struct mxt_data {
         u8 T6_reportid;
         u8 T9_reportid_min;
         u8 T9_reportid_max;
+        u8 T19_reportid;
 };
 
 static bool mxt_object_readable(unsigned int type)
@@ -502,6 +513,21 @@ static int mxt_write_object(struct mxt_data *data,
         return mxt_write_reg(data->client, reg + offset, val);
 }
 
+static void mxt_input_button(struct mxt_data *data, struct mxt_message *message)
+{
+        struct input_dev *input = data->input_dev;
+        bool button;
+        int i;
+
+        /* Active-low switch */
+        for (i = 0; i < MXT_NUM_GPIO; i++) {
+                if (data->pdata->key_map[i] == KEY_RESERVED)
+                        continue;
+                button = !(message->message[0] & MXT_GPIO0_MASK << i);
+                input_report_key(input, data->pdata->key_map[i], button);
+        }
+}
+
 static void mxt_input_touchevent(struct mxt_data *data,
                                       struct mxt_message *message, int id)
 {
@@ -585,6 +611,9 @@ static irqreturn_t mxt_interrupt(int irq, void *dev_id)
                         int id = reportid - data->T9_reportid_min;
                         mxt_input_touchevent(data, &message, id);
                         update_input = true;
+                } else if (message.reportid == data->T19_reportid) {
+                        mxt_input_button(data, &message);
+                        update_input = true;
                 } else {
                         mxt_dump_message(dev, &message);
                 }
@@ -764,6 +793,9 @@ static int mxt_get_object_table(struct mxt_data *data)
                         data->T9_reportid_min = min_id;
                         data->T9_reportid_max = max_id;
                         break;
+                case MXT_SPT_GPIOPWM_T19:
+                        data->T19_reportid = min_id;
+                        break;
                 }
         }
 
@@ -777,7 +809,7 @@ static void mxt_free_object_table(struct mxt_data *data)
         data->T6_reportid = 0;
         data->T9_reportid_min = 0;
         data->T9_reportid_max = 0;
-
+        data->T19_reportid = 0;
 }
 
 static int mxt_initialize(struct mxt_data *data)
@@ -1115,9 +1147,13 @@ static int mxt_probe(struct i2c_client *client,
                 goto err_free_mem;
         }
 
-        input_dev->name = "Atmel maXTouch Touchscreen";
+        data->is_tp = pdata && pdata->is_tp;
+
+        input_dev->name = (data->is_tp) ? "Atmel maXTouch Touchpad" :
+                                          "Atmel maXTouch Touchscreen";
         snprintf(data->phys, sizeof(data->phys), "i2c-%u-%04x/input0",
                  client->adapter->nr, client->addr);
+
         input_dev->phys = data->phys;
 
         input_dev->id.bustype = BUS_I2C;
@@ -1140,6 +1176,29 @@ static int mxt_probe(struct i2c_client *client,
         __set_bit(EV_KEY, input_dev->evbit);
         __set_bit(BTN_TOUCH, input_dev->keybit);
 
+        if (data->is_tp) {
+                int i;
+                __set_bit(INPUT_PROP_POINTER, input_dev->propbit);
+                __set_bit(INPUT_PROP_BUTTONPAD, input_dev->propbit);
+
+                for (i = 0; i < MXT_NUM_GPIO; i++)
+                        if (pdata->key_map[i] != KEY_RESERVED)
+                                __set_bit(pdata->key_map[i], input_dev->keybit);
+
+                __set_bit(BTN_TOOL_FINGER, input_dev->keybit);
+                __set_bit(BTN_TOOL_DOUBLETAP, input_dev->keybit);
+                __set_bit(BTN_TOOL_TRIPLETAP, input_dev->keybit);
+                __set_bit(BTN_TOOL_QUADTAP, input_dev->keybit);
+                __set_bit(BTN_TOOL_QUINTTAP, input_dev->keybit);
+
+                input_abs_set_res(input_dev, ABS_X, MXT_PIXELS_PER_MM);
+                input_abs_set_res(input_dev, ABS_Y, MXT_PIXELS_PER_MM);
+                input_abs_set_res(input_dev, ABS_MT_POSITION_X,
+                                  MXT_PIXELS_PER_MM);
+                input_abs_set_res(input_dev, ABS_MT_POSITION_Y,
+                                  MXT_PIXELS_PER_MM);
+        }
+
         /* For single touch */
         input_set_abs_params(input_dev, ABS_X,
                              0, data->max_x, 0, 0);
@@ -1258,6 +1317,7 @@ static SIMPLE_DEV_PM_OPS(mxt_pm_ops, mxt_suspend, mxt_resume);
 static const struct i2c_device_id mxt_id[] = {
         { "qt602240_ts", 0 },
         { "atmel_mxt_ts", 0 },
+        { "atmel_mxt_tp", 0 },
         { "mXT224", 0 },
         { }
 };
diff --git a/drivers/input/touchscreen/mms114.c b/drivers/input/touchscreen/mms114.c
index 4a29ddf6bf1e..1443532fe6c4 100644
--- a/drivers/input/touchscreen/mms114.c
+++ b/drivers/input/touchscreen/mms114.c
@@ -314,15 +314,27 @@ static int mms114_start(struct mms114_data *data)
         struct i2c_client *client = data->client;
         int error;
 
-        if (data->core_reg)
-                regulator_enable(data->core_reg);
-        if (data->io_reg)
-                regulator_enable(data->io_reg);
+        error = regulator_enable(data->core_reg);
+        if (error) {
+                dev_err(&client->dev, "Failed to enable avdd: %d\n", error);
+                return error;
+        }
+
+        error = regulator_enable(data->io_reg);
+        if (error) {
+                dev_err(&client->dev, "Failed to enable vdd: %d\n", error);
+                regulator_disable(data->core_reg);
+                return error;
+        }
+
         mdelay(MMS114_POWERON_DELAY);
 
         error = mms114_setup_regs(data);
-        if (error < 0)
+        if (error < 0) {
+                regulator_disable(data->io_reg);
+                regulator_disable(data->core_reg);
                 return error;
+        }
 
         if (data->pdata->cfg_pin)
                 data->pdata->cfg_pin(true);
@@ -335,16 +347,20 @@ static int mms114_start(struct mms114_data *data)
 static void mms114_stop(struct mms114_data *data)
 {
         struct i2c_client *client = data->client;
+        int error;
 
         disable_irq(client->irq);
 
         if (data->pdata->cfg_pin)
                 data->pdata->cfg_pin(false);
 
-        if (data->io_reg)
-                regulator_disable(data->io_reg);
-        if (data->core_reg)
-                regulator_disable(data->core_reg);
+        error = regulator_disable(data->io_reg);
+        if (error)
+                dev_warn(&client->dev, "Failed to disable vdd: %d\n", error);
+
+        error = regulator_disable(data->core_reg);
+        if (error)
+                dev_warn(&client->dev, "Failed to disable avdd: %d\n", error);
 }
 
 static int mms114_input_open(struct input_dev *dev)