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kernel: 5.4: backport led register fix

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Fixes issues with loading trigger-sources for usbport trigger from DTS.

Signed-off-by: Sungbo Eo <mans0n@gorani.run>
This commit is contained in:
Sungbo Eo 2020-03-09 02:35:29 +09:00 committed by Petr Štetiar
parent 6256ca3232
commit 04a87fedda
1 changed files with 36 additions and 0 deletions
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36
target/linux/generic/backport-5.4/801-v5.6-leds-populate-the-device-s-of_node.patch Normal file
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@ -0,0 +1,36 @@
From 7a349e8c535d7327bf80710323c725df47149b8d Mon Sep 17 00:00:00 2001
From: Jean-Jacques Hiblot <jjhiblot@ti.com>
Date: Sun, 5 Jan 2020 23:31:14 +0100
Subject: [PATCH] leds: populate the device's of_node
If initialization data is available and its fwnode is actually a
of_node, store this information in the led device's structure. This
will allow the device to use or provide OF-based API such (devm_xxx).
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
[backport to 5.4]
---
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -19,6 +19,7 @@
#include <linux/spinlock.h>
#include <linux/timer.h>
#include <uapi/linux/uleds.h>
+#include <linux/of.h>
#include "leds.h"
static struct class *leds_class;
@@ -276,8 +277,10 @@ int led_classdev_register_ext(struct dev
mutex_unlock(&led_cdev->led_access);
return PTR_ERR(led_cdev->dev);
}
- if (init_data && init_data->fwnode)
+ if (init_data && init_data->fwnode) {
led_cdev->dev->fwnode = init_data->fwnode;
+ led_cdev->dev->of_node = to_of_node(init_data->fwnode);
+ }
if (ret)
dev_warn(parent, "Led %s renamed to %s due to name collision",