target/linux/generic/backport-5.4/801-v5.6-leds-populate-the-device-s-of_node.patch

   1 From 7a349e8c535d7327bf80710323c725df47149b8d Mon Sep 17 00:00:00 2001
   2 From: Jean-Jacques Hiblot <jjhiblot@ti.com>
   3 Date: Sun, 5 Jan 2020 23:31:14 +0100
   4 Subject: [PATCH] leds: populate the device's of_node
   5
   6 If initialization data is available and its fwnode is actually a
   7 of_node, store this information in the led device's structure. This
   8 will allow the device to use or provide OF-based API such (devm_xxx).
   9
  10 Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
  11 Signed-off-by: Pavel Machek <pavel@ucw.cz>
  12 [backport to 5.4]
  13 ---
  14
  15 --- a/drivers/leds/led-class.c
  16 +++ b/drivers/leds/led-class.c
  17 @@ -19,6 +19,7 @@
  18  #include <linux/spinlock.h>
  19  #include <linux/timer.h>
  20  #include <uapi/linux/uleds.h>
  21 +#include <linux/of.h>
  22  #include "leds.h"
  23
  24  static struct class *leds_class;
  25 @@ -277,8 +278,10 @@ int led_classdev_register_ext(struct dev
  26                 mutex_unlock(&led_cdev->led_access);
  27                 return PTR_ERR(led_cdev->dev);
  28         }
  29 -       if (init_data && init_data->fwnode)
  30 +       if (init_data && init_data->fwnode) {
  31                 led_cdev->dev->fwnode = init_data->fwnode;
  32 +               led_cdev->dev->of_node = to_of_node(init_data->fwnode);
  33 +       }
  34
  35         if (ret)
  36                 dev_warn(parent, "Led %s renamed to %s due to name collision",