openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

leds: lt3593: drop pdata handling code 

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
parent 5b6cd445db
commit dd08e136f7
2 changed files with 1 additions and 56 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/leds/Kconfig
View File

@ -533,6 +533,7 @@ config LEDS_LT3593
tristate "LED driver for LT3593 controllers"
depends on LEDS_CLASS
depends on GPIOLIB || COMPILE_TEST
depends on OF
help
This option enables support for LEDs driven by a Linear Technology
LT3593 controller. This controller uses a special one-wire pulse

56
drivers/leds/leds-lt3593.c
View 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,