diff options
Diffstat (limited to 'drivers/leds/leds-gpio.c')
| -rw-r--r-- | drivers/leds/leds-gpio.c | 32 |
1 files changed, 15 insertions, 17 deletions
diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c index a0d931bcb37..57ff20fecf5 100644 --- a/drivers/leds/leds-gpio.c +++ b/drivers/leds/leds-gpio.c @@ -11,16 +11,15 @@ * */ #include <linux/kernel.h> -#include <linux/init.h> #include <linux/platform_device.h> #include <linux/gpio.h> #include <linux/leds.h> +#include <linux/of.h> #include <linux/of_platform.h> #include <linux/of_gpio.h> #include <linux/slab.h> #include <linux/workqueue.h> #include <linux/module.h> -#include <linux/pinctrl/consumer.h> #include <linux/err.h> struct gpio_led_data { @@ -107,6 +106,10 @@ static int create_gpio_led(const struct gpio_led *template, return 0; } + ret = devm_gpio_request(parent, 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; @@ -126,10 +129,7 @@ static int create_gpio_led(const struct gpio_led *template, if (!template->retain_state_suspended) led_dat->cdev.flags |= LED_CORE_SUSPENDRESUME; - ret = devm_gpio_request_one(parent, template->gpio, - (led_dat->active_low ^ state) ? - GPIOF_OUT_INIT_HIGH : GPIOF_OUT_INIT_LOW, - template->name); + ret = gpio_direction_output(led_dat->gpio, led_dat->active_low ^ state); if (ret < 0) return ret; @@ -170,11 +170,11 @@ static struct gpio_leds_priv *gpio_leds_create_of(struct platform_device *pdev) int count, ret; /* count LEDs in this device, so we know how much to allocate */ - count = of_get_child_count(np); + count = of_get_available_child_count(np); if (!count) return ERR_PTR(-ENODEV); - for_each_child_of_node(np, child) + for_each_available_child_of_node(np, child) if (of_get_gpio(child, 0) == -EPROBE_DEFER) return ERR_PTR(-EPROBE_DEFER); @@ -183,7 +183,7 @@ static struct gpio_leds_priv *gpio_leds_create_of(struct platform_device *pdev) if (!priv) return ERR_PTR(-ENOMEM); - for_each_child_of_node(np, child) { + for_each_available_child_of_node(np, child) { struct gpio_led led = {}; enum of_gpio_flags flags; const char *state; @@ -203,6 +203,9 @@ static struct gpio_leds_priv *gpio_leds_create_of(struct platform_device *pdev) led.default_state = LEDS_GPIO_DEFSTATE_OFF; } + if (of_get_property(child, "retain-state-suspended", NULL)) + led.retain_state_suspended = 1; + ret = create_gpio_led(&led, &priv->leds[priv->num_leds++], &pdev->dev, NULL); if (ret < 0) { @@ -223,6 +226,8 @@ static const struct of_device_id of_gpio_leds_match[] = { { .compatible = "gpio-leds", }, {}, }; + +MODULE_DEVICE_TABLE(of, of_gpio_leds_match); #else /* CONFIG_OF_GPIO */ static struct gpio_leds_priv *gpio_leds_create_of(struct platform_device *pdev) { @@ -233,15 +238,10 @@ static struct gpio_leds_priv *gpio_leds_create_of(struct platform_device *pdev) static int gpio_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 gpio_leds_priv *priv; - struct pinctrl *pinctrl; int i, ret = 0; - pinctrl = devm_pinctrl_get_select_default(&pdev->dev); - if (IS_ERR(pinctrl)) - dev_warn(&pdev->dev, - "pins are not configured from the driver\n"); if (pdata && pdata->num_leds) { priv = devm_kzalloc(&pdev->dev, @@ -281,8 +281,6 @@ static int gpio_led_remove(struct platform_device *pdev) for (i = 0; i < priv->num_leds; i++) delete_gpio_led(&priv->leds[i]); - platform_set_drvdata(pdev, NULL); - return 0; } |