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authorTakashi Iwai <tiwai@suse.de>2014-01-20 16:51:16 +0100
committerTakashi Iwai <tiwai@suse.de>2014-02-03 09:51:34 +0100
commit400362f1d8dcfda3562e80e88cfc2a92cffaf9bf (patch)
tree05328d792a4a0e7a928da1b3c04f6ba4b2123658 /sound/usb/card.c
parent63f4b3a475e84c5aa77f720f0f66989c686a14fb (diff)
downloadlinux-400362f1d8dcfda3562e80e88cfc2a92cffaf9bf.tar.bz2
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. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/card.c')
-rw-r--r--sound/usb/card.c18
1 files changed, 15 insertions, 3 deletions
diff --git a/sound/usb/card.c b/sound/usb/card.c
index d979050e6a6a..025224136129 100644
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -691,12 +691,12 @@ static int usb_audio_suspend(struct usb_interface *intf, pm_message_t message)
}
list_for_each_entry(mixer, &chip->mixer_list, list)
- snd_usb_mixer_inactivate(mixer);
+ snd_usb_mixer_suspend(mixer);
return 0;
}
-static int usb_audio_resume(struct usb_interface *intf)
+static int __usb_audio_resume(struct usb_interface *intf, bool reset_resume)
{
struct snd_usb_audio *chip = usb_get_intfdata(intf);
struct usb_mixer_interface *mixer;
@@ -711,7 +711,7 @@ static int usb_audio_resume(struct usb_interface *intf)
* we just notify and restart the mixers
*/
list_for_each_entry(mixer, &chip->mixer_list, list) {
- err = snd_usb_mixer_activate(mixer);
+ err = snd_usb_mixer_resume(mixer, reset_resume);
if (err < 0)
goto err_out;
}
@@ -723,9 +723,20 @@ static int usb_audio_resume(struct usb_interface *intf)
err_out:
return err;
}
+
+static int usb_audio_resume(struct usb_interface *intf)
+{
+ return __usb_audio_resume(intf, false);
+}
+
+static int usb_audio_reset_resume(struct usb_interface *intf)
+{
+ return __usb_audio_resume(intf, true);
+}
#else
#define usb_audio_suspend NULL
#define usb_audio_resume NULL
+#define usb_audio_reset_resume NULL
#endif /* CONFIG_PM */
static struct usb_device_id usb_audio_ids [] = {
@@ -747,6 +758,7 @@ static struct usb_driver usb_audio_driver = {
.disconnect = usb_audio_disconnect,
.suspend = usb_audio_suspend,
.resume = usb_audio_resume,
+ .reset_resume = usb_audio_reset_resume,
.id_table = usb_audio_ids,
.supports_autosuspend = 1,
};