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leds: lt3593: drop pdata handling code

Telusuri Sumber 
The only user of this driver in mainline has now moved to DTS, so the pdata
code is no longer in use by anyone. Let's drop some dead code, and make the
driver depend on CONFIG_OF.

Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
This commit is contained in:
Daniel Mack
2019-03-20 22:52:27 +01:00
committed by Jacek Anaszewski
orang tua 5b6cd445db
melakukan dd08e136f7
2 mengubah file dengan 1 tambahan dan 56 penghapusan
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56
drivers/leds/leds-lt3593.c
Melihat File

@@ -60,50 +60,6 @@ static int lt3593_led_set(struct led_classdev *led_cdev,
return 0;
}
static struct lt3593_led_data *lt3593_led_probe_pdata(struct device *dev)
{
struct gpio_led_platform_data *pdata = dev_get_platdata(dev);
const struct gpio_led *template = &pdata->leds[0];
struct lt3593_led_data *led_data;
int ret, state;
if (pdata->num_leds != 1)
return ERR_PTR(-EINVAL);
led_data = devm_kzalloc(dev, sizeof(*led_data), GFP_KERNEL);
if (!led_data)
return ERR_PTR(-ENOMEM);
led_data->cdev.name = template->name;
led_data->cdev.default_trigger = template->default_trigger;
led_data->cdev.brightness_set_blocking = lt3593_led_set;
state = (template->default_state == LEDS_GPIO_DEFSTATE_ON);
led_data->cdev.brightness = state ? LED_FULL : LED_OFF;
if (!template->retain_state_suspended)
led_data->cdev.flags |= LED_CORE_SUSPENDRESUME;
ret = devm_gpio_request_one(dev, template->gpio, state ?
GPIOF_OUT_INIT_HIGH : GPIOF_OUT_INIT_LOW,
template->name);
if (ret < 0)
return ERR_PTR(ret);
led_data->gpiod = gpio_to_desc(template->gpio);
if (!led_data->gpiod)
return ERR_PTR(-EPROBE_DEFER);
ret = devm_led_classdev_register(dev, &led_data->cdev);
if (ret < 0)
return ERR_PTR(ret);
dev_info(dev, "registered LT3593 LED '%s' at GPIO %d\n",
template->name, template->gpio);
return led_data;
}
static int lt3593_led_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -113,14 +69,6 @@ static int lt3593_led_probe(struct platform_device *pdev)
enum gpiod_flags flags = GPIOD_OUT_LOW;
const char *tmp;
if (dev_get_platdata(dev)) {
led_data = lt3593_led_probe_pdata(dev);
if (IS_ERR(led_data))
return PTR_ERR(led_data);
goto out;
}
if (!dev->of_node)
return -ENODEV;
@@ -171,20 +119,16 @@ static int lt3593_led_probe(struct platform_device *pdev)
}
led_data->cdev.dev->of_node = dev->of_node;
out:
platform_set_drvdata(pdev, led_data);
return 0;
}
#ifdef CONFIG_OF
static const struct of_device_id of_lt3593_leds_match[] = {
{ .compatible = "lltc,lt3593", },
{},
};
MODULE_DEVICE_TABLE(of, of_lt3593_leds_match);
#endif
static struct platform_driver lt3593_led_driver = {
.probe = lt3593_led_probe,