openwrtv3/target/linux/generic/patches-4.4/085-0005-leds-gpio-use-OF-variant-of-LED-registering-function.patch
Rafał Miłecki 318f2d6101 kernel: fix of_node handling in LEDs core code
This backports fixes for setting of_node and making it possible to read
extra info from DT. This was partially fixed by:
[PATCH] leds: leds-gpio: Set of_node for created LED devices
but it didn't work during initialization.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2017-03-08 13:06:16 +01:00

60 lines
2 KiB
Diff

From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Mon, 6 Mar 2017 06:19:45 +0100
Subject: [PATCH] leds: gpio: use OF variant of LED registering function
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
In leds-gpio we support LEDs specified in DT so we should use
(devm_)of_led_classdev_register. This allows passing DT node as argument
for use by the LED subsystem.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
---
drivers/leds/leds-gpio.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
--- a/drivers/leds/leds-gpio.c
+++ b/drivers/leds/leds-gpio.c
@@ -87,7 +87,7 @@ static int gpio_blink_set(struct led_cla
static int create_gpio_led(const struct gpio_led *template,
struct gpio_led_data *led_dat, struct device *parent,
- gpio_blink_set_t blink_set)
+ struct device_node *np, gpio_blink_set_t blink_set)
{
int ret, state;
@@ -143,7 +143,7 @@ static int create_gpio_led(const struct
INIT_WORK(&led_dat->work, gpio_led_work);
- return devm_led_classdev_register(parent, &led_dat->cdev);
+ return devm_of_led_classdev_register(parent, np, &led_dat->cdev);
}
static void delete_gpio_led(struct gpio_led_data *led)
@@ -219,7 +219,7 @@ static struct gpio_leds_priv *gpio_leds_
if (fwnode_property_present(child, "retain-state-suspended"))
led.retain_state_suspended = 1;
- ret = create_gpio_led(&led, led_dat, dev, NULL);
+ ret = create_gpio_led(&led, led_dat, dev, np, NULL);
if (ret < 0) {
fwnode_handle_put(child);
goto err;
@@ -256,9 +256,9 @@ static int gpio_led_probe(struct platfor
priv->num_leds = pdata->num_leds;
for (i = 0; i < priv->num_leds; i++) {
- ret = create_gpio_led(&pdata->leds[i],
- &priv->leds[i],
- &pdev->dev, pdata->gpio_blink_set);
+ ret = create_gpio_led(&pdata->leds[i], &priv->leds[i],
+ &pdev->dev, NULL,
+ pdata->gpio_blink_set);
if (ret < 0)
return ret;
}