diff options
Diffstat (limited to 'sound/soc')
| -rw-r--r-- | sound/soc/soc-dapm.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index c68c204a48a..8997fb34ddd 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -966,6 +966,22 @@ static int dapm_power_widgets(struct snd_soc_codec *codec, int event) } } + /* If there are no DAPM widgets then try to figure out power from the + * event type. + */ + if (list_empty(&codec->dapm_widgets)) { + switch (event) { + case SND_SOC_DAPM_STREAM_START: + case SND_SOC_DAPM_STREAM_RESUME: + sys_power = 1; + break; + case SND_SOC_DAPM_STREAM_NOP: + sys_power = codec->bias_level != SND_SOC_BIAS_STANDBY; + default: + break; + } + } + /* If we're changing to all on or all off then prepare */ if ((sys_power && codec->bias_level == SND_SOC_BIAS_STANDBY) || (!sys_power && codec->bias_level == SND_SOC_BIAS_ON)) { |