Re: [PATCH] thinkpad_acpi: Fix inconsistent mute LED after resume

[Takashi Iwai <tiwai@suse.de>]

At Wed, 12 Feb 2014 20:37:36 +0000,
Matthew Garrett wrote:
> 
> On Wed, 2014-02-12 at 16:32 +0100, Takashi Iwai wrote:
> > The mute LED states have to be restored after resume.
> 
> Oh, never mind, we're not doing this through the LED class, are we?

Good point.  It seems that leds_class has pm_ops but it's enabled only
when a flag is set.

I added the original bug reporter to Cc.  (Don't know the name,
Bugzilla shows only the email address.)
Could you check the patch below works instead of the previous fix?


Takashi

---
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index defb6afc1409..16edf75d9c00 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -4796,6 +4796,7 @@ static struct tpacpi_led_classdev tpacpi_led_thinklight = {
 		.name		= "tpacpi::thinklight",
 		.brightness_set	= &light_sysfs_set,
 		.brightness_get	= &light_sysfs_get,
+		.flags		= LED_CORE_SUSPENDRESUME,
 	}
 };