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authorRafał Miłecki <rafal@milecki.pl>2017-03-08 12:38:43 +0100
committerRafał Miłecki <rafal@milecki.pl>2017-03-08 13:06:16 +0100
commit318f2d61016e69206ab9ec63017eb47e246c0b75 (patch)
tree8d9b0f889c8994bc50fb5a9265033b659ca27b14 /target/linux/generic/patches-4.9/080-0002-leds-gpio-use-OF-variant-of-LED-registering-function.patch
parent4124847772604773d05fbc8bd5d84f7c7b80edca (diff)
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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>
Diffstat (limited to 'target/linux/generic/patches-4.9/080-0002-leds-gpio-use-OF-variant-of-LED-registering-function.patch')
-rw-r--r--target/linux/generic/patches-4.9/080-0002-leds-gpio-use-OF-variant-of-LED-registering-function.patch60
1 files changed, 60 insertions, 0 deletions
diff --git a/target/linux/generic/patches-4.9/080-0002-leds-gpio-use-OF-variant-of-LED-registering-function.patch b/target/linux/generic/patches-4.9/080-0002-leds-gpio-use-OF-variant-of-LED-registering-function.patch
new file mode 100644
index 0000000000..0247fffb2a
--- /dev/null
+++ b/target/linux/generic/patches-4.9/080-0002-leds-gpio-use-OF-variant-of-LED-registering-function.patch
@@ -0,0 +1,60 @@
+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
+@@ -77,7 +77,7 @@ 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;
+
+@@ -139,7 +139,7 @@ static int create_gpio_led(const struct
+ if (ret < 0)
+ return ret;
+
+- return devm_led_classdev_register(parent, &led_dat->cdev);
++ return devm_of_led_classdev_register(parent, np, &led_dat->cdev);
+ }
+
+ struct gpio_leds_priv {
+@@ -206,7 +206,7 @@ static struct gpio_leds_priv *gpio_leds_
+ if (fwnode_property_present(child, "panic-indicator"))
+ led.panic_indicator = 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);
+ return ERR_PTR(ret);
+@@ -240,9 +240,9 @@ 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;
+ }