kernel: split patches folder up into backport, pending and hack folders

[openwrt/openwrt.git] / target / linux / generic / backport-4.9 / 080-0001-leds-core-add-OF-variants-of-LED-registering-functio.patch

diff --git a/target/linux/generic/backport-4.9/080-0001-leds-core-add-OF-variants-of-LED-registering-functio.patch b/target/linux/generic/backport-4.9/080-0001-leds-core-add-OF-variants-of-LED-registering-functio.patch
new file mode 100644 (file)
index 0000000..5b1b307
--- /dev/null
+++ b/target/linux/generic/backport-4.9/080-0001-leds-core-add-OF-variants-of-LED-registering-functio.patch
@@ -0,0 +1,120 @@
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Mon, 6 Mar 2017 06:19:44 +0100
+Subject: [PATCH] leds: core: add OF variants of LED registering functions
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+These new functions allow passing an additional device_node argument
+that will be internally set for created LED device. Thanks to this LED
+core code and triggers will be able to access DT node for reading extra
+info.
+
+The easiest solution for achieving this was reworking old functions to
+more generic ones & adding simple defines for API compatibility.
+
+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/led-class.c | 26 ++++++++++++++++----------
+ include/linux/leds.h     | 14 ++++++++++----
+ 2 files changed, 26 insertions(+), 14 deletions(-)
+
+--- a/drivers/leds/led-class.c
++++ b/drivers/leds/led-class.c
+@@ -181,11 +181,14 @@ static int led_classdev_next_name(const
+ }
+ 
+ /**
+- * led_classdev_register - register a new object of led_classdev class.
+- * @parent: The device to register.
++ * of_led_classdev_register - register a new object of led_classdev class.
++ *
++ * @parent: parent of LED device
+  * @led_cdev: the led_classdev structure for this device.
++ * @np: DT node describing this LED
+  */
+-int led_classdev_register(struct device *parent, struct led_classdev *led_cdev)
++int of_led_classdev_register(struct device *parent, struct device_node *np,
++                          struct led_classdev *led_cdev)
+ {
+       char name[64];
+       int ret;
+@@ -198,6 +201,7 @@ int led_classdev_register(struct device
+                               led_cdev, led_cdev->groups, "%s", name);
+       if (IS_ERR(led_cdev->dev))
+               return PTR_ERR(led_cdev->dev);
++      led_cdev->dev->of_node = np;
+ 
+       if (ret)
+               dev_warn(parent, "Led %s renamed to %s due to name collision",
+@@ -228,7 +232,7 @@ int led_classdev_register(struct device
+ 
+       return 0;
+ }
+-EXPORT_SYMBOL_GPL(led_classdev_register);
++EXPORT_SYMBOL_GPL(of_led_classdev_register);
+ 
+ /**
+  * led_classdev_unregister - unregisters a object of led_properties class.
+@@ -270,12 +274,14 @@ static void devm_led_classdev_release(st
+ }
+ 
+ /**
+- * devm_led_classdev_register - resource managed led_classdev_register()
+- * @parent: The device to register.
++ * devm_of_led_classdev_register - resource managed led_classdev_register()
++ *
++ * @parent: parent of LED device
+  * @led_cdev: the led_classdev structure for this device.
+  */
+-int devm_led_classdev_register(struct device *parent,
+-                             struct led_classdev *led_cdev)
++int devm_of_led_classdev_register(struct device *parent,
++                                struct device_node *np,
++                                struct led_classdev *led_cdev)
+ {
+       struct led_classdev **dr;
+       int rc;
+@@ -284,7 +290,7 @@ int devm_led_classdev_register(struct de
+       if (!dr)
+               return -ENOMEM;
+ 
+-      rc = led_classdev_register(parent, led_cdev);
++      rc = of_led_classdev_register(parent, np, led_cdev);
+       if (rc) {
+               devres_free(dr);
+               return rc;
+@@ -295,7 +301,7 @@ int devm_led_classdev_register(struct de
+ 
+       return 0;
+ }
+-EXPORT_SYMBOL_GPL(devm_led_classdev_register);
++EXPORT_SYMBOL_GPL(devm_of_led_classdev_register);
+ 
+ static int devm_led_classdev_match(struct device *dev, void *res, void *data)
+ {
+--- a/include/linux/leds.h
++++ b/include/linux/leds.h
+@@ -109,10 +109,16 @@ struct led_classdev {
+       struct mutex            led_access;
+ };
+ 
+-extern int led_classdev_register(struct device *parent,
+-                               struct led_classdev *led_cdev);
+-extern int devm_led_classdev_register(struct device *parent,
+-                                    struct led_classdev *led_cdev);
++extern int of_led_classdev_register(struct device *parent,
++                                  struct device_node *np,
++                                  struct led_classdev *led_cdev);
++#define led_classdev_register(parent, led_cdev)                               \
++      of_led_classdev_register(parent, NULL, led_cdev)
++extern int devm_of_led_classdev_register(struct device *parent,
++                                       struct device_node *np,
++                                       struct led_classdev *led_cdev);
++#define devm_led_classdev_register(parent, led_cdev)                  \
++      devm_of_led_classdev_register(parent, NULL, led_cdev)
+ extern void led_classdev_unregister(struct led_classdev *led_cdev);
+ extern void devm_led_classdev_unregister(struct device *parent,
+                                        struct led_classdev *led_cdev);