At Sat, 19 Apr 2014 13:20:01 -0400,
Bryan Quigley wrote:
>
> 400362f1d8dcfda3562e80e88cfc2a92cffaf9bf is the first bad commit
> commit 400362f1d8dcfda3562e80e88cfc2a92cffaf9bf
> Author: Takashi Iwai <ti...@suse.de>
> Date: Mon Jan 20 16:51:16 2014 +0100
>
> ALSA: usb-audio: Resume mixer values properly
>
> Implement reset_resume callback so that the mixer values are properly
> restored. Still no boot quirks are called, so it might not work well
> on some devices.
>
> Confirmed that a revert of that commit only fixes the issue.
Does the patch below work? I'm on vacation now, so the reply may be
delayed.
thanks,
Takashi
---
diff --git a/sound/usb/card.c b/sound/usb/card.c
index 893d5a1..d26fd9b 100644
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -711,6 +711,7 @@ static int __usb_audio_resume(struct usb_interface *intf,
bool reset_resume)
return 0;
if (--chip->num_suspended_intf)
return 0;
+ usb_autopm_get_interface_no_resume(chip->pm_intf);
/*
* ALSA leaves material resumption to user space
* we just notify and restart the mixers
@@ -726,6 +727,7 @@ static int __usb_audio_resume(struct usb_interface *intf,
bool reset_resume)
chip->autosuspended = 0;
err_out:
+ usb_autopm_put_interface(chip->pm_intf);
return err;
}
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