unsigned char ext:1; /* has external widgets */
unsigned char force:1; /* force state */
unsigned char ignore_suspend:1; /* kept enabled over suspend */
+ unsigned char new_power:1; /* power from this run */
+ unsigned char power_checked:1; /* power checked this run */
int subseq; /* sort within widget type */
int (*power_check)(struct snd_soc_dapm_widget *w);
static int dapm_widget_power_check(struct snd_soc_dapm_widget *w)
{
+ if (w->power_checked)
+ return w->new_power;
+
if (w->force)
- return 1;
+ w->new_power = 1;
else
- return w->power_check(w);
+ w->new_power = w->power_check(w);
+
+ w->power_checked = true;
+
+ return w->new_power;
}
/* Generic check to see if a widget should be powered.
memset(&card->dapm_stats, 0, sizeof(card->dapm_stats));
+ list_for_each_entry(w, &card->widgets, list) {
+ w->power_checked = false;
+ }
+
/* Check which widgets we need to power and store them in
* lists indicating if they should be powered up or down. We
* only check widgets that have been flagged as dirty but note