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>

diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 2b5ae50..0414ade 100644 (file)
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -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

diff --git a/drivers/leds/leds-lt3593.c b/drivers/leds/leds-lt3593.c
index de3623e..54f0e5d 100644 (file)
--- a/drivers/leds/leds-lt3593.c
+++ b/drivers/leds/leds-lt3593.c
@@ -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,