linux-kernel - [PATCH] leds: leds-gpio: add shutdown function

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Message-Id: <1444713432-24433-1-git-send-email-hs@denx.de>
Date:	Tue, 13 Oct 2015 07:17:12 +0200
From:	Heiko Schocher <hs@...x.de>
To:	linux-kernel@...r.kernel.org
Cc:	Heiko Schocher <hs@...x.de>,
	Jacek Anaszewski <j.anaszewski@...sung.com>,
	Richard Purdie <rpurdie@...ys.net>, linux-leds@...r.kernel.org,
	Georg.Soffel@...ch-si.com
Subject: [PATCH] leds: leds-gpio: add shutdown function

add a shutdown function for setting the gpio-leds
into off state when shuting down.

Signed-off-by: Heiko Schocher <hs@...x.de>
---

 drivers/leds/leds-gpio.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c
index af1876a..5db4515 100644
--- a/drivers/leds/leds-gpio.c
+++ b/drivers/leds/leds-gpio.c
@@ -291,9 +291,22 @@ static int gpio_led_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static void gpio_led_shutdown(struct platform_device *pdev)
+{
+	struct gpio_leds_priv *priv = platform_get_drvdata(pdev);
+	int i;
+
+	for (i = 0; i < priv->num_leds; i++) {
+		struct gpio_led_data *led = &priv->leds[i];
+
+		gpio_led_set(&led->cdev, LED_OFF);
+	}
+}
+
 static struct platform_driver gpio_led_driver = {
 	.probe		= gpio_led_probe,
 	.remove		= gpio_led_remove,
+	.shutdown	= gpio_led_shutdown,
 	.driver		= {
 		.name	= "leds-gpio",
 		.of_match_table = of_gpio_leds_match,
-- 
2.1.0

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