mirror of https://github.com/hak5/openwrt.git
54 lines
1.9 KiB
Diff
54 lines
1.9 KiB
Diff
From bff23714bc36a1322d0f14519022df0d1a4b21f3 Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
|
|
Date: Fri, 8 Jul 2016 14:53:38 +0200
|
|
Subject: [PATCH] leds: leds-gpio: Set of_node for created LED devices
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
When working with Device Tree we iterate over children of "gpio-leds"
|
|
compatible node and create LED device for each of them. We take care of
|
|
all common DT properties (label, default trigger, state, etc.), however
|
|
some triggers may want to support more of them.
|
|
|
|
It could be useful for timer trigger to support setting delay on/off
|
|
values with Device Tree property. Or for transient trigger to support
|
|
e.g. duration property.
|
|
|
|
We obviously should handle such properties in triggers, not in generic
|
|
code. To let trigger drivers read properties from DT node we need to set
|
|
of_node to point the relevant node. This change allows using all kind of
|
|
of helpers in e.g. "activate" callbacks.
|
|
|
|
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
|
|
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
|
|
---
|
|
drivers/leds/leds-gpio.c | 5 +++--
|
|
1 file changed, 3 insertions(+), 2 deletions(-)
|
|
|
|
--- a/drivers/leds/leds-gpio.c
|
|
+++ b/drivers/leds/leds-gpio.c
|
|
@@ -182,6 +182,7 @@ static struct gpio_leds_priv *gpio_leds_
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
device_for_each_child_node(dev, child) {
|
|
+ struct gpio_led_data *led_dat = &priv->leds[priv->num_leds];
|
|
struct gpio_led led = {};
|
|
const char *state = NULL;
|
|
|
|
@@ -220,12 +221,12 @@ 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, &priv->leds[priv->num_leds],
|
|
- dev, NULL);
|
|
+ ret = create_gpio_led(&led, led_dat, dev, NULL);
|
|
if (ret < 0) {
|
|
fwnode_handle_put(child);
|
|
goto err;
|
|
}
|
|
+ led_dat->cdev.dev->of_node = np;
|
|
priv->num_leds++;
|
|
}
|
|
|