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authorDan Murphy <dmurphy@ti.com>2017-12-18 21:23:07 +0100
committerJacek Anaszewski <jacek.anaszewski@gmail.com>2018-01-08 21:28:12 +0100
commita2169c9b762ac64899b2aefb170ea0e16178afd6 (patch)
tree02f249b0168bf12ebbb6addc79731adfc9cbcb24 /drivers/leds
parentleds: lp8860: Add DT parsing to retrieve the trigger node (diff)
downloadlinux-a2169c9b762ac64899b2aefb170ea0e16178afd6.tar.xz
linux-a2169c9b762ac64899b2aefb170ea0e16178afd6.zip
leds: lp8860: Various fixes to align with LED framework
Update the driver to conform with the LED framework: - use devm_led_classdev_register - destroy mutex on exit - remove dependency on CONFIG_OF in the driver and move to the Kconfig - update the MODULE_LICENSE to GPL v2 - remove setting of MAX brightness as the LED framework does this. Signed-off-by: Dan Murphy <dmurphy@ti.com> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Diffstat (limited to 'drivers/leds')
-rw-r--r--drivers/leds/Kconfig2
-rw-r--r--drivers/leds/leds-lp8860.c13
2 files changed, 6 insertions, 9 deletions
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 1d215b39cefd..3e763d2a0cb3 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -354,7 +354,7 @@ config LEDS_LP8788
config LEDS_LP8860
tristate "LED support for the TI LP8860 4 channel LED driver"
- depends on LEDS_CLASS && I2C
+ depends on LEDS_CLASS && I2C && OF
select REGMAP_I2C
help
If you say yes here you get support for the TI LP8860 4 channel
diff --git a/drivers/leds/leds-lp8860.c b/drivers/leds/leds-lp8860.c
index 94b996b343ce..39c72a908f3b 100644
--- a/drivers/leds/leds-lp8860.c
+++ b/drivers/leds/leds-lp8860.c
@@ -421,7 +421,6 @@ static int lp8860_probe(struct i2c_client *client,
led->client = client;
led->led_dev.name = led->label;
- led->led_dev.max_brightness = LED_FULL;
led->led_dev.brightness_set_blocking = lp8860_brightness_set;
mutex_init(&led->lock);
@@ -448,7 +447,7 @@ static int lp8860_probe(struct i2c_client *client,
if (ret)
return ret;
- ret = led_classdev_register(&client->dev, &led->led_dev);
+ ret = devm_led_classdev_register(&client->dev, &led->led_dev);
if (ret) {
dev_err(&client->dev, "led register err: %d\n", ret);
return ret;
@@ -462,8 +461,6 @@ static int lp8860_remove(struct i2c_client *client)
struct lp8860_led *led = i2c_get_clientdata(client);
int ret;
- led_classdev_unregister(&led->led_dev);
-
if (led->enable_gpio)
gpiod_direction_output(led->enable_gpio, 0);
@@ -474,6 +471,8 @@ static int lp8860_remove(struct i2c_client *client)
"Failed to disable regulator\n");
}
+ mutex_destroy(&led->lock);
+
return 0;
}
@@ -483,18 +482,16 @@ static const struct i2c_device_id lp8860_id[] = {
};
MODULE_DEVICE_TABLE(i2c, lp8860_id);
-#ifdef CONFIG_OF
static const struct of_device_id of_lp8860_leds_match[] = {
{ .compatible = "ti,lp8860", },
{},
};
MODULE_DEVICE_TABLE(of, of_lp8860_leds_match);
-#endif
static struct i2c_driver lp8860_driver = {
.driver = {
.name = "lp8860",
- .of_match_table = of_match_ptr(of_lp8860_leds_match),
+ .of_match_table = of_lp8860_leds_match,
},
.probe = lp8860_probe,
.remove = lp8860_remove,
@@ -504,4 +501,4 @@ module_i2c_driver(lp8860_driver);
MODULE_DESCRIPTION("Texas Instruments LP8860 LED driver");
MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");