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khadas: drivers/leds

Browse source 
- squashed, scripts/packaging/etc removed, grouped by directory
- source
  - https://github.com/khadas/linux/commits/khadas-edges-5.10.y
  - 85a8b25939
This commit is contained in:
Ricardo Pardini 2023-03-30 11:36:53 +08:00 • committed by Mecid Urganci
parent d5c5392ffd
commit 1b54ee2f63
1 changed files with 38 additions and 2 deletions
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40
drivers/leds/leds-gpio.c
View file

@ -79,6 +79,25 @@ static int create_gpio_led(const struct gpio_led *template,
struct led_init_data init_data = {};
int ret, state;
led_dat->gpiod = template->gpiod;
if (!led_dat->gpiod) {
unsigned long flags = GPIOF_OUT_INIT_LOW;
if (!gpio_is_valid(template->gpio)) {
dev_info(parent, "Skipping unavailable LED gpio %d (%s)\n",
template->gpio, template->name);
return 0;
}
if (template->active_low)
flags |= GPIOF_ACTIVE_LOW;
ret = devm_gpio_request_one(parent, template->gpio, flags,
template->name);
if (ret < 0)
return ret;
led_dat->gpiod = gpio_to_desc(template->gpio);
if (!led_dat->gpiod)
return -EINVAL;
}
led_dat->cdev.name = template->name;
led_dat->cdev.default_trigger = template->default_trigger;
led_dat->can_sleep = gpiod_cansleep(led_dat->gpiod);
if (!led_dat->can_sleep)
@ -127,6 +146,12 @@ struct gpio_leds_priv {
struct gpio_led_data leds[];
};
static inline int sizeof_gpio_leds_priv(int num_leds)
{
return sizeof(struct gpio_leds_priv) +
(sizeof(struct gpio_led_data) * num_leds);
}
static struct gpio_leds_priv *gpio_leds_create(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@ -146,19 +171,30 @@ static struct gpio_leds_priv *gpio_leds_create(struct platform_device *pdev)
struct gpio_led_data *led_dat = &priv->leds[priv->num_leds];
struct gpio_led led = {};
struct device_node *np = to_of_node(child);
ret = fwnode_property_read_string(child, "label", &led.name);
if (ret && IS_ENABLED(CONFIG_OF) && np)
led.name = np->name;
if (!led.name) {
fwnode_handle_put(child);
return ERR_PTR(-EINVAL);
}
/*
* Acquire gpiod from DT with uninitialized label, which
* will be updated after LED class device is registered,
* Only then the final LED name is known.
*/
led.gpiod = devm_fwnode_get_gpiod_from_child(dev, NULL, child,
GPIOD_ASIS,
NULL);
GPIOD_ASIS,led.name);
if (IS_ERR(led.gpiod)) {
fwnode_handle_put(child);
return ERR_CAST(led.gpiod);
}
fwnode_property_read_string(child, "linux,default-trigger",
&led.default_trigger);
led_dat->gpiod = led.gpiod;
led.default_state = led_init_default_state_get(child);