Signed-off-by: Nick Dyer <nick.dyer@xxxxxxxxxxx>
---
drivers/input/touchscreen/atmel_mxt_ts.c | 129 +++++++++++++++++-------------
1 file changed, 75 insertions(+), 54 deletions(-)
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index c91b22f..8d63780 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -1817,73 +1817,39 @@ static int mxt_handle_pdata(struct mxt_data *data)
return 0;
}
-static int mxt_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+static int mxt_initialize_t9_input_device(struct mxt_data *data)
{
- struct mxt_data *data;
+ struct device *dev = &data->client->dev;
+ const struct mxt_platform_data *pdata = data->pdata;
struct input_dev *input_dev;
int error;
unsigned int num_mt_slots;
unsigned int mt_flags = 0;
int i;
- data = kzalloc(sizeof(struct mxt_data), GFP_KERNEL);
input_dev = input_allocate_device();
- if (!data || !input_dev) {
- dev_err(&client->dev, "Failed to allocate memory\n");
- error = -ENOMEM;
- goto err_free_mem;
+ if (!input_dev) {
+ dev_err(dev, "Failed to allocate memory\n");
+ return -ENOMEM;
}
input_dev->name = "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;
- input_dev->dev.parent = &client->dev;
+ input_dev->dev.parent = dev;
input_dev->open = mxt_input_open;
input_dev->close = mxt_input_close;
- data->client = client;
- data->input_dev = input_dev;
- data->irq = client->irq;
- i2c_set_clientdata(client, data);
-
- error = mxt_handle_pdata(data);
- if (error)
- goto err_free_mem;
-
- init_completion(&data->bl_completion);
- init_completion(&data->reset_completion);
- init_completion(&data->crc_completion);
-
- error = request_threaded_irq(data->irq, NULL, mxt_interrupt,
- data->pdata->irqflags | IRQF_ONESHOT,
- client->name, data);
- if (error) {
- dev_err(&client->dev, "Failed to register interrupt\n");
- goto err_free_pdata;
- }
-
- disable_irq(client->irq);
-
- error = mxt_initialize(data);
- if (error)
- goto err_free_irq;
-
__set_bit(EV_ABS, input_dev->evbit);
- __set_bit(EV_KEY, input_dev->evbit);
- __set_bit(BTN_TOUCH, input_dev->keybit);
+ input_set_capability(input_dev, EV_KEY, BTN_TOUCH);
- if (data->pdata->t19_num_keys) {
+ if (pdata->t19_num_keys) {
__set_bit(INPUT_PROP_BUTTONPAD, input_dev->propbit);
- for (i = 0; i < data->pdata->t19_num_keys; i++)
- if (data->pdata->t19_keymap[i] != KEY_RESERVED)
+ for (i = 0; i < pdata->t19_num_keys; i++)
+ if (pdata->t19_keymap[i] != KEY_RESERVED)
input_set_capability(input_dev, EV_KEY,
- data->pdata->t19_keymap[i]);
+ pdata->t19_keymap[i]);
mt_flags |= INPUT_MT_POINTER;
@@ -1908,8 +1874,11 @@ static int mxt_probe(struct i2c_client *client,
/* For multi touch */
num_mt_slots = data->T9_reportid_max - data->T9_reportid_min + 1;
error = input_mt_init_slots(input_dev, num_mt_slots, mt_flags);
- if (error)
- goto err_free_object;
+ if (error) {
+ dev_err(dev, "Error %d initialising slots\n", error);
+ goto err_free_mem;
+ }
+
input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR,
0, MXT_MAX_AREA, 0, 0);
input_set_abs_params(input_dev, ABS_MT_POSITION_X,
@@ -1923,11 +1892,64 @@ static int mxt_probe(struct i2c_client *client,
error = input_register_device(input_dev);
if (error) {
- dev_err(&client->dev, "Error %d registering input device\n",
- error);
- goto err_free_object;
+ dev_err(dev, "Error %d registering input device\n", error);
+ goto err_free_mem;
}
+ data->input_dev = input_dev;
+
+ return 0;
+
+err_free_mem:
+ input_free_device(input_dev);
+ return error;
+}
+
+static int mxt_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct mxt_data *data;
+ int error;
+
+ data = kzalloc(sizeof(struct mxt_data), GFP_KERNEL);
+ if (!data) {
+ dev_err(&client->dev, "Failed to allocate memory\n");
+ return -ENOMEM;
+ }
+
+ snprintf(data->phys, sizeof(data->phys), "i2c-%u-%04x/input0",
+ client->adapter->nr, client->addr);
+
+ data->client = client;
+ data->irq = client->irq;
+ i2c_set_clientdata(client, data);
+
+ error = mxt_handle_pdata(data);
+ if (error)
+ goto err_free_mem;
+
+ init_completion(&data->bl_completion);
+ init_completion(&data->reset_completion);
+ init_completion(&data->crc_completion);
+
+ error = request_threaded_irq(data->irq, NULL, mxt_interrupt,
+ data->pdata->irqflags | IRQF_ONESHOT,
+ client->name, data);
+ if (error) {
+ dev_err(&client->dev, "Failed to register interrupt\n");
+ goto err_free_pdata;
+ }
+
+ disable_irq(data->irq);
+
+ error = mxt_initialize(data);
+ if (error)
+ goto err_free_irq;
+
+ error = mxt_initialize_t9_input_device(data);
+ if (error)
+ goto err_free_object;
+
error = sysfs_create_group(&client->dev.kobj, &mxt_attr_group);
if (error) {
dev_err(&client->dev, "Failure %d creating sysfs group\n",
@@ -1954,8 +1976,8 @@ static int mxt_probe(struct i2c_client *client,
err_remove_sysfs_group:
sysfs_remove_group(&client->dev.kobj, &mxt_attr_group);
err_unregister_device:
- input_unregister_device(input_dev);
- input_dev = NULL;
+ input_unregister_device(data->input_dev);
+ data->input_dev = NULL;
err_free_object:
kfree(data->object_table);
err_free_irq:
@@ -1964,7 +1986,6 @@ err_free_pdata:
if (!dev_get_platdata(&data->client->dev))
kfree(data->pdata);
err_free_mem:
- input_free_device(input_dev);
kfree(data);
return error;
}
--
1.7.10.4
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