This patch converts the leds-netxbig driver to use the devres functions
devm_gpio_request_one() and devm_led_classdev_register(). This allows to
simplify the code a bit.
Signed-off-by: Simon Guinot <simon.guinot@xxxxxxxxxxxx>
---
drivers/leds/leds-netxbig.c | 108 ++++++++++++--------------------------------
1 file changed, 28 insertions(+), 80 deletions(-)
diff --git a/drivers/leds/leds-netxbig.c b/drivers/leds/leds-netxbig.c
index e1f3c2632278..b166fd9f4186 100644
--- a/drivers/leds/leds-netxbig.c
+++ b/drivers/leds/leds-netxbig.c
@@ -71,7 +71,8 @@ static void gpio_ext_set_value(struct netxbig_gpio_ext *gpio_ext,
spin_unlock_irqrestore(&gpio_ext_lock, flags);
}
-static int gpio_ext_init(struct netxbig_gpio_ext *gpio_ext)
+static int gpio_ext_init(struct platform_device *pdev,
+ struct netxbig_gpio_ext *gpio_ext)
{
int err;
int i;
@@ -81,46 +82,28 @@ static int gpio_ext_init(struct netxbig_gpio_ext *gpio_ext)
/* Configure address GPIOs. */
for (i = 0; i < gpio_ext->num_addr; i++) {
- err = gpio_request_one(gpio_ext->addr[i], GPIOF_OUT_INIT_LOW,
- "GPIO extension addr");
+ err = devm_gpio_request_one(&pdev->dev, gpio_ext->addr[i],
+ GPIOF_OUT_INIT_LOW,
+ "GPIO extension addr");
if (err)
- goto err_free_addr;
+ return err;
}
/* Configure data GPIOs. */
for (i = 0; i < gpio_ext->num_data; i++) {
- err = gpio_request_one(gpio_ext->data[i], GPIOF_OUT_INIT_LOW,
- "GPIO extension data");
+ err = devm_gpio_request_one(&pdev->dev, gpio_ext->data[i],
+ GPIOF_OUT_INIT_LOW,
+ "GPIO extension data");
if (err)
- goto err_free_data;
+ return err;
}
/* Configure "enable select" GPIO. */
- err = gpio_request_one(gpio_ext->enable, GPIOF_OUT_INIT_LOW,
- "GPIO extension enable");
+ err = devm_gpio_request_one(&pdev->dev, gpio_ext->enable,
+ GPIOF_OUT_INIT_LOW,
+ "GPIO extension enable");
if (err)
- goto err_free_data;
+ return err;
return 0;
-
-err_free_data:
- for (i = i - 1; i >= 0; i--)
- gpio_free(gpio_ext->data[i]);
- i = gpio_ext->num_addr;
-err_free_addr:
- for (i = i - 1; i >= 0; i--)
- gpio_free(gpio_ext->addr[i]);
-
- return err;
-}
-
-static void gpio_ext_free(struct netxbig_gpio_ext *gpio_ext)
-{
- int i;
-
- gpio_free(gpio_ext->enable);
- for (i = gpio_ext->num_addr - 1; i >= 0; i--)
- gpio_free(gpio_ext->addr[i]);
- for (i = gpio_ext->num_data - 1; i >= 0; i--)
- gpio_free(gpio_ext->data[i]);
}
/*
@@ -141,11 +124,6 @@ struct netxbig_led_data {
spinlock_t lock;
};
-struct netxbig_led_priv {
- struct netxbig_led_platform_data *pdata;
- struct netxbig_led_data leds_data[];
-};
-
static int netxbig_led_get_timer_mode(enum netxbig_led_mode *mode,
unsigned long delay_on,
unsigned long delay_off,
@@ -305,18 +283,11 @@ static struct attribute *netxbig_led_attrs[] = {
};
ATTRIBUTE_GROUPS(netxbig_led);
-static void delete_netxbig_led(struct netxbig_led_data *led_dat)
-{
- led_classdev_unregister(&led_dat->cdev);
-}
-
-static int create_netxbig_led(struct platform_device *pdev, int led,
- struct netxbig_led_priv *priv)
+static int create_netxbig_led(struct platform_device *pdev,
+ struct netxbig_led_platform_data *pdata,
+ struct netxbig_led_data *led_dat,
+ const struct netxbig_led *template)
{
- struct netxbig_led_platform_data *pdata = priv->pdata;
- struct netxbig_led_data *led_dat = &priv->leds_data[led];
- const struct netxbig_led *template = &priv->pdata->leds[led];
-
spin_lock_init(&led_dat->lock);
led_dat->gpio_ext = pdata->gpio_ext;
led_dat->cdev.name = template->name;
@@ -349,7 +320,7 @@ static int create_netxbig_led(struct platform_device *pdev, int led,
if (led_dat->mode_val[NETXBIG_LED_SATA] != NETXBIG_LED_INVALID_MODE)
led_dat->cdev.groups = netxbig_led_groups;
- return led_classdev_register(&pdev->dev, &led_dat->cdev);
+ return devm_led_classdev_register(&pdev->dev, &led_dat->cdev);
}
#ifdef CONFIG_OF_GPIO
@@ -579,7 +550,7 @@ netxbig_leds_get_of_pdata(struct device *dev,
static int netxbig_led_probe(struct platform_device *pdev)
{
struct netxbig_led_platform_data *pdata = dev_get_platdata(&pdev->dev);
- struct netxbig_led_priv *priv;
+ struct netxbig_led_data *leds_data;
int i;
int ret;
@@ -592,51 +563,28 @@ static int netxbig_led_probe(struct platform_device *pdev)
return ret;
}
- priv = devm_kzalloc(&pdev->dev, sizeof(*priv) +
- pdata->num_leds * sizeof(struct netxbig_led_data),
- GFP_KERNEL);
- if (!priv)
+ leds_data = devm_kzalloc(&pdev->dev,
+ pdata->num_leds * sizeof(*leds_data),
+ GFP_KERNEL);
+ if (!leds_data)
return -ENOMEM;
- priv->pdata = pdata;
- ret = gpio_ext_init(pdata->gpio_ext);
+ ret = gpio_ext_init(pdev, pdata->gpio_ext);
if (ret < 0)
return ret;
for (i = 0; i < pdata->num_leds; i++) {
- ret = create_netxbig_led(pdev, i, priv);
+ ret = create_netxbig_led(pdev, pdata,
+ &leds_data[i], &pdata->leds[i]);
if (ret < 0)
- goto err_free_leds;
+ return ret;
}
- platform_set_drvdata(pdev, priv);
-
- return 0;
-
-err_free_leds:
- for (i = i - 1; i >= 0; i--)
- delete_netxbig_led(&priv->leds_data[i]);
-
- gpio_ext_free(pdata->gpio_ext);
- return ret;
-}
-
-static int netxbig_led_remove(struct platform_device *pdev)
-{
- struct netxbig_led_priv *priv = platform_get_drvdata(pdev);
- struct netxbig_led_platform_data *pdata = priv->pdata;
- int i;
-
- for (i = 0; i < pdata->num_leds; i++)
- delete_netxbig_led(&priv->leds_data[i]);
-
- gpio_ext_free(pdata->gpio_ext);
return 0;
}
static struct platform_driver netxbig_led_driver = {
.probe = netxbig_led_probe,
- .remove = netxbig_led_remove,
.driver = {
.name = "leds-netxbig",
.of_match_table = of_match_ptr(of_netxbig_leds_match),
--
2.1.4
--
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