diff options
Diffstat (limited to 'drivers/leds/leds-lt3593.c')
| -rw-r--r-- | drivers/leds/leds-lt3593.c | 60 |
1 files changed, 19 insertions, 41 deletions
diff --git a/drivers/leds/leds-lt3593.c b/drivers/leds/leds-lt3593.c index 2579678f97a..059f5b1f355 100644 --- a/drivers/leds/leds-lt3593.c +++ b/drivers/leds/leds-lt3593.c @@ -17,13 +17,13 @@ */ #include <linux/kernel.h> -#include <linux/init.h> #include <linux/platform_device.h> #include <linux/leds.h> #include <linux/workqueue.h> #include <linux/delay.h> #include <linux/gpio.h> #include <linux/slab.h> +#include <linux/module.h> struct lt3593_led_data { struct led_classdev cdev; @@ -81,22 +81,18 @@ static void lt3593_led_set(struct led_classdev *led_cdev, schedule_work(&led_dat->work); } -static int __devinit create_lt3593_led(const struct gpio_led *template, +static int create_lt3593_led(const struct gpio_led *template, struct lt3593_led_data *led_dat, struct device *parent) { int ret, state; /* skip leds on GPIOs that aren't available */ if (!gpio_is_valid(template->gpio)) { - printk(KERN_INFO "%s: skipping unavailable LT3593 LED at gpio %d (%s)\n", + dev_info(parent, "%s: skipping unavailable LT3593 LED at gpio %d (%s)\n", KBUILD_MODNAME, template->gpio, template->name); return 0; } - ret = gpio_request(template->gpio, template->name); - if (ret < 0) - return ret; - led_dat->cdev.name = template->name; led_dat->cdev.default_trigger = template->default_trigger; led_dat->gpio = template->gpio; @@ -109,24 +105,22 @@ static int __devinit create_lt3593_led(const struct gpio_led *template, if (!template->retain_state_suspended) led_dat->cdev.flags |= LED_CORE_SUSPENDRESUME; - ret = gpio_direction_output(led_dat->gpio, state); + ret = devm_gpio_request_one(parent, template->gpio, state ? + GPIOF_OUT_INIT_HIGH : GPIOF_OUT_INIT_LOW, + template->name); if (ret < 0) - goto err; + return ret; INIT_WORK(&led_dat->work, lt3593_led_work); ret = led_classdev_register(parent, &led_dat->cdev); if (ret < 0) - goto err; + return ret; - printk(KERN_INFO "%s: registered LT3593 LED '%s' at GPIO %d\n", + dev_info(parent, "%s: registered LT3593 LED '%s' at GPIO %d\n", KBUILD_MODNAME, template->name, template->gpio); return 0; - -err: - gpio_free(led_dat->gpio); - return ret; } static void delete_lt3593_led(struct lt3593_led_data *led) @@ -136,20 +130,20 @@ static void delete_lt3593_led(struct lt3593_led_data *led) led_classdev_unregister(&led->cdev); cancel_work_sync(&led->work); - gpio_free(led->gpio); } -static int __devinit lt3593_led_probe(struct platform_device *pdev) +static int lt3593_led_probe(struct platform_device *pdev) { - struct gpio_led_platform_data *pdata = pdev->dev.platform_data; + struct gpio_led_platform_data *pdata = dev_get_platdata(&pdev->dev); struct lt3593_led_data *leds_data; int i, ret = 0; if (!pdata) return -EBUSY; - leds_data = kzalloc(sizeof(struct lt3593_led_data) * pdata->num_leds, - GFP_KERNEL); + leds_data = devm_kzalloc(&pdev->dev, + sizeof(struct lt3593_led_data) * pdata->num_leds, + GFP_KERNEL); if (!leds_data) return -ENOMEM; @@ -168,15 +162,13 @@ err: for (i = i - 1; i >= 0; i--) delete_lt3593_led(&leds_data[i]); - kfree(leds_data); - return ret; } -static int __devexit lt3593_led_remove(struct platform_device *pdev) +static int lt3593_led_remove(struct platform_device *pdev) { int i; - struct gpio_led_platform_data *pdata = pdev->dev.platform_data; + struct gpio_led_platform_data *pdata = dev_get_platdata(&pdev->dev); struct lt3593_led_data *leds_data; leds_data = platform_get_drvdata(pdev); @@ -184,35 +176,21 @@ static int __devexit lt3593_led_remove(struct platform_device *pdev) for (i = 0; i < pdata->num_leds; i++) delete_lt3593_led(&leds_data[i]); - kfree(leds_data); - return 0; } static struct platform_driver lt3593_led_driver = { .probe = lt3593_led_probe, - .remove = __devexit_p(lt3593_led_remove), + .remove = lt3593_led_remove, .driver = { .name = "leds-lt3593", .owner = THIS_MODULE, }, }; -MODULE_ALIAS("platform:leds-lt3593"); - -static int __init lt3593_led_init(void) -{ - return platform_driver_register(<3593_led_driver); -} - -static void __exit lt3593_led_exit(void) -{ - platform_driver_unregister(<3593_led_driver); -} - -module_init(lt3593_led_init); -module_exit(lt3593_led_exit); +module_platform_driver(lt3593_led_driver); MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>"); MODULE_DESCRIPTION("LED driver for LT3593 controllers"); MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:leds-lt3593"); |