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path: root/drivers/leds/leds-an30259a.c
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Diffstat (limited to 'drivers/leds/leds-an30259a.c')
-rw-r--r--drivers/leds/leds-an30259a.c86
1 files changed, 35 insertions, 51 deletions
diff --git a/drivers/leds/leds-an30259a.c b/drivers/leds/leds-an30259a.c
index 1c1f0c8c56f4..a42cc4bc6917 100644
--- a/drivers/leds/leds-an30259a.c
+++ b/drivers/leds/leds-an30259a.c
@@ -13,7 +13,6 @@
#include <linux/mutex.h>
#include <linux/of.h>
#include <linux/regmap.h>
-#include <uapi/linux/uleds.h>
#define AN30259A_MAX_LEDS 3
@@ -54,19 +53,17 @@
#define AN30259A_BLINK_MAX_TIME 7500 /* ms */
#define AN30259A_SLOPE_RESOLUTION 500 /* ms */
-#define STATE_OFF 0
-#define STATE_KEEP 1
-#define STATE_ON 2
+#define AN30259A_NAME "an30259a"
struct an30259a;
struct an30259a_led {
struct an30259a *chip;
+ struct fwnode_handle *fwnode;
struct led_classdev cdev;
u32 num;
- u32 default_state;
+ enum led_default_state default_state;
bool sloping;
- char label[LED_MAX_NAME_SIZE];
};
struct an30259a {
@@ -201,13 +198,12 @@ error:
static int an30259a_dt_init(struct i2c_client *client,
struct an30259a *chip)
{
- struct device_node *np = client->dev.of_node, *child;
+ struct device_node *np = dev_of_node(&client->dev), *child;
int count, ret;
int i = 0;
- const char *str;
struct an30259a_led *led;
- count = of_get_child_count(np);
+ count = of_get_available_child_count(np);
if (!count || count > AN30259A_MAX_LEDS)
return -EINVAL;
@@ -226,26 +222,8 @@ static int an30259a_dt_init(struct i2c_client *client,
led->num = source;
led->chip = chip;
-
- if (of_property_read_string(child, "label", &str))
- snprintf(led->label, sizeof(led->label), "an30259a::");
- else
- snprintf(led->label, sizeof(led->label), "an30259a:%s",
- str);
-
- led->cdev.name = led->label;
-
- if (!of_property_read_string(child, "default-state", &str)) {
- if (!strcmp(str, "on"))
- led->default_state = STATE_ON;
- else if (!strcmp(str, "keep"))
- led->default_state = STATE_KEEP;
- else
- led->default_state = STATE_OFF;
- }
-
- of_property_read_string(child, "linux,default-trigger",
- &led->cdev.default_trigger);
+ led->fwnode = of_fwnode_handle(child);
+ led->default_state = led_init_default_state_get(led->fwnode);
i++;
}
@@ -270,10 +248,10 @@ static void an30259a_init_default_state(struct an30259a_led *led)
int led_on, err;
switch (led->default_state) {
- case STATE_ON:
+ case LEDS_DEFSTATE_ON:
led->cdev.brightness = LED_FULL;
break;
- case STATE_KEEP:
+ case LEDS_DEFSTATE_KEEP:
err = regmap_read(chip->regmap, AN30259A_REG_LED_ON, &led_on);
if (err)
break;
@@ -305,39 +283,46 @@ static int an30259a_probe(struct i2c_client *client)
if (err < 0)
return err;
- mutex_init(&chip->mutex);
+ err = devm_mutex_init(&client->dev, &chip->mutex);
+ if (err)
+ return err;
+
chip->client = client;
i2c_set_clientdata(client, chip);
chip->regmap = devm_regmap_init_i2c(client, &an30259a_regmap_config);
+ if (IS_ERR(chip->regmap)) {
+ err = PTR_ERR(chip->regmap);
+ dev_err(&client->dev, "Failed to allocate register map: %d\n",
+ err);
+ goto exit;
+ }
+
for (i = 0; i < chip->num_leds; i++) {
+ struct led_init_data init_data = {};
+
an30259a_init_default_state(&chip->leds[i]);
chip->leds[i].cdev.brightness_set_blocking =
an30259a_brightness_set;
chip->leds[i].cdev.blink_set = an30259a_blink_set;
- err = devm_led_classdev_register(&client->dev,
- &chip->leds[i].cdev);
+ init_data.fwnode = chip->leds[i].fwnode;
+ init_data.devicename = AN30259A_NAME;
+ init_data.default_label = ":";
+
+ err = devm_led_classdev_register_ext(&client->dev,
+ &chip->leds[i].cdev,
+ &init_data);
if (err < 0)
goto exit;
}
return 0;
exit:
- mutex_destroy(&chip->mutex);
return err;
}
-static int an30259a_remove(struct i2c_client *client)
-{
- struct an30259a *chip = i2c_get_clientdata(client);
-
- mutex_destroy(&chip->mutex);
-
- return 0;
-}
-
static const struct of_device_id an30259a_match_table[] = {
{ .compatible = "panasonic,an30259a", },
{ /* sentinel */ },
@@ -346,23 +331,22 @@ static const struct of_device_id an30259a_match_table[] = {
MODULE_DEVICE_TABLE(of, an30259a_match_table);
static const struct i2c_device_id an30259a_id[] = {
- { "an30259a", 0 },
- { /* sentinel */ },
+ { "an30259a" },
+ { /* sentinel */ }
};
MODULE_DEVICE_TABLE(i2c, an30259a_id);
static struct i2c_driver an30259a_driver = {
.driver = {
- .name = "leds-an32059a",
- .of_match_table = of_match_ptr(an30259a_match_table),
+ .name = "leds-an30259a",
+ .of_match_table = an30259a_match_table,
},
- .probe_new = an30259a_probe,
- .remove = an30259a_remove,
+ .probe = an30259a_probe,
.id_table = an30259a_id,
};
module_i2c_driver(an30259a_driver);
MODULE_AUTHOR("Simon Shields <simon@lineageos.org>");
-MODULE_DESCRIPTION("AN32059A LED driver");
+MODULE_DESCRIPTION("AN30259A LED driver");
MODULE_LICENSE("GPL v2");