static int __devinit gpio_keys_probe(struct platform_device *pdev)
{
const struct gpio_keys_platform_data *pdata = pdev->dev.platform_data;
struct gpio_keys_drvdata *ddata;
struct device *dev = &pdev->dev;
struct gpio_keys_platform_data alt_pdata;
struct input_dev *input;
int i, error;
int wakeup = 0;
if (!pdata) {
error = gpio_keys_get_devtree_pdata(dev, &alt_pdata);
if (error)
return error;
pdata = &alt_pdata;
}
ddata = kzalloc(sizeof(struct gpio_keys_drvdata) +
pdata->nbuttons * sizeof(struct gpio_button_data),
GFP_KERNEL);
input = input_allocate_device();
if (!ddata || !input) {
dev_err(dev, "failed to allocate state\n");
error = -ENOMEM;
goto fail1;
}
ddata->input = input;
ddata->n_buttons = pdata->nbuttons;
ddata->enable = pdata->enable;
ddata->disable = pdata->disable;
#ifdef CONFIG_SENSORS_HALL
ddata->gpio_flip_cover = pdata->gpio_flip_cover;
ddata->irq_flip_cover = gpio_to_irq(ddata->gpio_flip_cover);;
wake_lock_init(&ddata->flip_wake_lock, WAKE_LOCK_SUSPEND,
"flip wake lock");
#endif
mutex_init(&ddata->disable_lock);
platform_set_drvdata(pdev, ddata);
input_set_drvdata(input, ddata);
input->name = pdata->name ? : pdev->name;
input->phys = "gpio-keys/input0";
input->dev.parent = &pdev->dev;
#ifdef CONFIG_SENSORS_HALL
input->evbit[0] |= BIT_MASK(EV_SW);
input_set_capability(input, EV_SW, SW_FLIP);
#endif
input->open = gpio_keys_open;
input->close = gpio_keys_close;
input->id.bustype = BUS_HOST;
input->id.vendor = 0x0001;
input->id.product = 0x0001;
input->id.version = 0x0100;
/* Enable auto repeat feature of Linux input subsystem */
if (pdata->rep)
__set_bit(EV_REP, input->evbit);
for (i = 0; i < pdata->nbuttons; i++) {
struct gpio_keys_button *button = &pdata->buttons[i];
struct gpio_button_data *bdata = &ddata->data[i];
error = gpio_keys_setup_key(pdev, input, bdata, button);
if (error)
goto fail2;
if (button->wakeup)
wakeup = 1;
#ifdef KEY_BOOSTER
if (button->code == KEY_HOMEPAGE) {
error = gpio_key_init_dvfs(bdata);
if (error < 0) {
dev_err(dev, "Fail get dvfs level for touch booster\n");
goto fail2;
}
}
#endif
}
error = sysfs_create_group(&pdev->dev.kobj, &gpio_keys_attr_group);
if (error) {
dev_err(dev, "Unable to export keys/switches, error: %d\n",
error);
goto fail2;
}
ddata->sec_key =
device_create(sec_class, NULL, 0, ddata, "sec_key");
if (IS_ERR(ddata->sec_key))
dev_err(dev, "Failed to create sec_key device\n");
error = sysfs_create_group(&ddata->sec_key->kobj, &sec_key_attr_group);
if (error) {
dev_err(dev, "Failed to create the test sysfs: %d\n",
error);
goto fail2;
}
#ifdef CONFIG_SENSORS_HALL
init_hall_ic_irq(input);
#endif
error = input_register_device(input);
if (error) {
dev_err(dev, "Unable to register input device, error: %d\n",
error);
goto fail3;
}
/* get current state of buttons */
for (i = 0; i < pdata->nbuttons; i++)
gpio_keys_gpio_report_event(&ddata->data[i]);
input_sync(input);
device_init_wakeup(&pdev->dev, wakeup);
return 0;
fail3:
sysfs_remove_group(&pdev->dev.kobj, &gpio_keys_attr_group);
sysfs_remove_group(&ddata->sec_key->kobj, &sec_key_attr_group);
fail2:
while (--i >= 0)
gpio_remove_key(&ddata->data[i]);
platform_set_drvdata(pdev, NULL);
#ifdef CONFIG_SENSORS_HALL
wake_lock_destroy(&ddata->flip_wake_lock);
#endif
fail1:
input_free_device(input);
kfree(ddata);
/* If we have no platform_data, we allocated buttons dynamically. */
if (!pdev->dev.platform_data)
kfree(pdata->buttons);
return error;
}
static int hall_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct hall_drvdata *ddata;
struct input_dev *input;
int error;
int wakeup = 0;
ddata = kzalloc(sizeof(struct hall_drvdata), GFP_KERNEL);
if (!ddata) {
dev_err(dev, "failed to allocate state\n");
return -ENOMEM;
}
#ifdef CONFIG_OF
if(dev->of_node) {
error = of_hall_data_parsing_dt(ddata);
if (error < 0) {
pr_info("%s : fail to get the dt (HALL)\n", __func__);
goto fail1;
}
}
#endif
input = input_allocate_device();
if (!input) {
dev_err(dev, "failed to allocate state\n");
error = -ENOMEM;
goto fail1;
}
ddata->input = input;
wake_lock_init(&ddata->accessory_wake_lock, WAKE_LOCK_SUSPEND,
"hall accessory wake lock");
platform_set_drvdata(pdev, ddata);
input_set_drvdata(input, ddata);
input->name = "hall accessory";
input->phys = "hall accessory";
input->dev.parent = &pdev->dev;
input->evbit[0] |= BIT_MASK(EV_SW);
input_set_capability(input, EV_SW, SW_3D_ACC);
input->open = hall_open;
input->close = hall_close;
/* Enable auto repeat feature of Linux input subsystem */
__set_bit(EV_REP, input->evbit);
init_hall_ic_irq(input);
error = sysfs_create_group(&sec_key->kobj, &hall_attr_group);
if (error) {
dev_err(dev, "Unable to export keys/switches, error: %d\n",
error);
goto fail2;
}
error = input_register_device(input);
if (error) {
dev_err(dev, "Unable to register input device, error: %d\n",
error);
goto fail3;
}
device_init_wakeup(&pdev->dev, wakeup);
return 0;
fail3:
sysfs_remove_group(&pdev->dev.kobj, &hall_attr_group);
fail2:
platform_set_drvdata(pdev, NULL);
wake_lock_destroy(&ddata->accessory_wake_lock);
input_free_device(input);
fail1:
kfree(ddata);
return error;
}
