acer-wmi: deactive mail led when power off

This patch deactive mail led when laptop is going to hibernete/suspend
or power off. After resume from hibernate/suspend correctly restore
mail led state.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Tested-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index a8acf35d7475..4c8209376985 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -991,6 +991,7 @@ static int __devinit acer_led_init(struct device *dev)
 
 static void acer_led_exit(void)
 {
+        set_u32(LED_OFF, ACER_CAP_MAILLED);
         led_classdev_unregister(&mail_led);
 }
 
@@ -1553,6 +1554,7 @@ pm_message_t state)
 
         if (has_cap(ACER_CAP_MAILLED)) {
                 get_u32(&value, ACER_CAP_MAILLED);
+                set_u32(LED_OFF, ACER_CAP_MAILLED);
                 data->mailled = value;
         }
 
@@ -1580,6 +1582,17 @@ static int acer_platform_resume(struct platform_device *device)
         return 0;
 }
 
+static void acer_platform_shutdown(struct platform_device *device)
+{
+        struct acer_data *data = &interface->data;
+
+        if (!data)
+                return;
+
+        if (has_cap(ACER_CAP_MAILLED))
+                set_u32(LED_OFF, ACER_CAP_MAILLED);
+}
+
 static struct platform_driver acer_platform_driver = {
         .driver = {
                 .name = "acer-wmi",
@@ -1589,6 +1602,7 @@ static struct platform_driver acer_platform_driver = {
         .remove = acer_platform_remove,
         .suspend = acer_platform_suspend,
         .resume = acer_platform_resume,
+        .shutdown = acer_platform_shutdown,
 };
 
 static struct platform_device *acer_platform_device;