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-rw-r--r--sound/usb/mixer.c44
-rw-r--r--sound/usb/mixer.h1
-rw-r--r--sound/usb/mixer_quirks.c2
3 files changed, 36 insertions, 11 deletions
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 5a2d9a768f70..2faf5767c7f8 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -3631,20 +3631,43 @@ static int restore_mixer_value(struct usb_mixer_elem_list *list)
return 0;
}
+static int default_mixer_resume(struct usb_mixer_elem_list *list)
+{
+ struct usb_mixer_elem_info *cval = mixer_elem_list_to_info(list);
+
+ /* get connector value to "wake up" the USB audio */
+ if (cval->val_type == USB_MIXER_BOOLEAN && cval->channels == 1)
+ get_connector_value(cval, NULL, NULL);
+
+ return 0;
+}
+
+static int default_mixer_reset_resume(struct usb_mixer_elem_list *list)
+{
+ int err = default_mixer_resume(list);
+
+ if (err < 0)
+ return err;
+ return restore_mixer_value(list);
+}
+
int snd_usb_mixer_resume(struct usb_mixer_interface *mixer, bool reset_resume)
{
struct usb_mixer_elem_list *list;
+ usb_mixer_elem_resume_func_t f;
int id, err;
- if (reset_resume) {
- /* restore cached mixer values */
- for (id = 0; id < MAX_ID_ELEMS; id++) {
- for_each_mixer_elem(list, mixer, id) {
- if (list->resume) {
- err = list->resume(list);
- if (err < 0)
- return err;
- }
+ /* restore cached mixer values */
+ for (id = 0; id < MAX_ID_ELEMS; id++) {
+ for_each_mixer_elem(list, mixer, id) {
+ if (reset_resume)
+ f = list->reset_resume;
+ else
+ f = list->resume;
+ if (f) {
+ err = f(list);
+ if (err < 0)
+ return err;
}
}
}
@@ -3663,6 +3686,7 @@ void snd_usb_mixer_elem_init_std(struct usb_mixer_elem_list *list,
list->id = unitid;
list->dump = snd_usb_mixer_dump_cval;
#ifdef CONFIG_PM
- list->resume = restore_mixer_value;
+ list->resume = default_mixer_resume;
+ list->reset_resume = default_mixer_reset_resume;
#endif
}
diff --git a/sound/usb/mixer.h b/sound/usb/mixer.h
index c29e27ac43a7..e5a01f17bf3c 100644
--- a/sound/usb/mixer.h
+++ b/sound/usb/mixer.h
@@ -69,6 +69,7 @@ struct usb_mixer_elem_list {
bool is_std_info;
usb_mixer_elem_dump_func_t dump;
usb_mixer_elem_resume_func_t resume;
+ usb_mixer_elem_resume_func_t reset_resume;
};
/* iterate over mixer element list of the given unit id */
diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index 5b77e8140ba6..e64cd4b11fc6 100644
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -151,7 +151,7 @@ static int add_single_ctl_with_resume(struct usb_mixer_interface *mixer,
*listp = list;
list->mixer = mixer;
list->id = id;
- list->resume = resume;
+ list->reset_resume = resume;
kctl = snd_ctl_new1(knew, list);
if (!kctl) {
kfree(list);