ASoC: dpcm: Add runtime dynamic route update
This patch allows DPCM to dynamically alter the FE to BE PCM links
at runtime based on mixer setting updates. DAPM is looked up after
every mixer update and we perform a DPCM runtime update if the
mixer has a change of value.
This patchs adds/changes the following :-
o Adds DPCM runtime update core.
o Changes soc_dapm_mixer_update_power() and soc_dapm_mux_update_power()
to return if a change has occured rather than 0. No other users check
atm.
Signed-off-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 214323f..02db2c0 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -1846,7 +1846,7 @@
dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP);
}
- return 0;
+ return found;
}
int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_widget *widget,
@@ -1858,6 +1858,8 @@
mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
ret = soc_dapm_mux_update_power(widget, kcontrol, mux, e);
mutex_unlock(&card->dapm_mutex);
+ if (ret > 0)
+ soc_dpcm_runtime_update(widget);
return ret;
}
EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power);
@@ -1890,7 +1892,7 @@
dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP);
}
- return 0;
+ return found;
}
int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_widget *widget,
@@ -1902,6 +1904,8 @@
mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
ret = soc_dapm_mixer_update_power(widget, kcontrol, connect);
mutex_unlock(&card->dapm_mutex);
+ if (ret > 0)
+ soc_dpcm_runtime_update(widget);
return ret;
}
EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power);