From defb512d2576992c63ba1c18c24eea31cfeaa26e Mon Sep 17 00:00:00 2001
From: Richard Purdie <rpurdie@linux.intel.com>
Date: Tue, 17 Feb 2009 15:04:07 +0000
Subject: [PATCH] leds: Add suspend/resume state flags to leds-gpio
Add an option to preserve LED state when suspending/resuming to the LED
gpio driver. Based on a suggestion from Robert Jarzmik.
Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
---
drivers/leds/leds-gpio.c | 3 ++-
include/linux/leds.h | 3 ++-
2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c
index 0daa2d21cbdec..8fa352ac20f84 100644
--- a/drivers/leds/leds-gpio.c
+++ b/drivers/leds/leds-gpio.c
@@ -93,7 +93,8 @@ static int __devinit create_gpio_led(const struct gpio_led *template,
}
led_dat->cdev.brightness_set = gpio_led_set;
led_dat->cdev.brightness = LED_OFF;
- led_dat->cdev.flags |= LED_CORE_SUSPENDRESUME;
+ if (!template->retain_state_suspended)
+ led_dat->cdev.flags |= LED_CORE_SUSPENDRESUME;
ret = gpio_direction_output(led_dat->gpio, led_dat->active_low);
if (ret < 0)
diff --git a/include/linux/leds.h b/include/linux/leds.h
index 17d277e0c4a64..376fe07732ea9 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -141,7 +141,8 @@ struct gpio_led {
const char *name;
const char *default_trigger;
unsigned gpio;
- u8 active_low;
+ u8 active_low : 1;
+ u8 retain_state_suspended : 1;
};
struct gpio_led_platform_data {
--
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