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-rw-r--r--sound/usb/card.c19
-rw-r--r--sound/usb/usbaudio.h2
2 files changed, 13 insertions, 8 deletions
diff --git a/sound/usb/card.c b/sound/usb/card.c
index fd6fd1726ea0..359f7a04be1c 100644
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -843,9 +843,6 @@ static int usb_audio_suspend(struct usb_interface *intf, pm_message_t message)
if (chip == (void *)-1L)
return 0;
- chip->autosuspended = !!PMSG_IS_AUTO(message);
- if (!chip->autosuspended)
- snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
if (!chip->num_suspended_intf++) {
list_for_each_entry(as, &chip->pcm_list, list) {
snd_usb_pcm_suspend(as);
@@ -858,6 +855,11 @@ static int usb_audio_suspend(struct usb_interface *intf, pm_message_t message)
snd_usb_mixer_suspend(mixer);
}
+ if (!PMSG_IS_AUTO(message) && !chip->system_suspend) {
+ snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
+ chip->system_suspend = chip->num_suspended_intf;
+ }
+
return 0;
}
@@ -871,10 +873,10 @@ static int __usb_audio_resume(struct usb_interface *intf, bool reset_resume)
if (chip == (void *)-1L)
return 0;
- if (--chip->num_suspended_intf)
- return 0;
atomic_inc(&chip->active); /* avoid autopm */
+ if (chip->num_suspended_intf > 1)
+ goto out;
list_for_each_entry(as, &chip->pcm_list, list) {
err = snd_usb_pcm_resume(as);
@@ -896,9 +898,12 @@ static int __usb_audio_resume(struct usb_interface *intf, bool reset_resume)
snd_usbmidi_resume(p);
}
- if (!chip->autosuspended)
+ out:
+ if (chip->num_suspended_intf == chip->system_suspend) {
snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0);
- chip->autosuspended = 0;
+ chip->system_suspend = 0;
+ }
+ chip->num_suspended_intf--;
err_out:
atomic_dec(&chip->active); /* allow autopm after this point */
diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h
index 1c892c7f14d7..e0ebfb25fbd5 100644
--- a/sound/usb/usbaudio.h
+++ b/sound/usb/usbaudio.h
@@ -26,7 +26,7 @@ struct snd_usb_audio {
struct usb_interface *pm_intf;
u32 usb_id;
struct mutex mutex;
- unsigned int autosuspended:1;
+ unsigned int system_suspend;
atomic_t active;
atomic_t shutdown;
atomic_t usage_count;