From f17a14789e55f45514d1d72a4e51dcc6bdd8d463 Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Date: Thu, 12 Mar 2020 10:52:14 +0100
Subject: [PATCH] ASoC: export DPCM runtime update functions
Git-commit: f17a14789e55f45514d1d72a4e51dcc6bdd8d463
Patch-mainline: v5.7-rc1
References: jsc#SLE-16518

This makes DPCM runtime update functions available for external
calling. As an example, virtualised ASoC component drivers may need
to call these when managing shared DAPM routes that are used by more
than one driver (i.e. when host driver and guest drivers have a DAPM
path from guest PCM to host DAI where some parts are owned by host
driver and others by guest driver).

Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Link: https://lore.kernel.org/r/20200312095214.15126-3-guennadi.liakhovetski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 include/sound/soc-dpcm.h | 4 ++--
 sound/soc/soc-dapm.c     | 8 ++++----
 sound/soc/soc-pcm.c      | 5 ++++-
 3 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/include/sound/soc-dpcm.h b/include/sound/soc-dpcm.h
index 40223577ec4a..0f6c50b17bba 100644
--- a/include/sound/soc-dpcm.h
+++ b/include/sound/soc-dpcm.h
@@ -132,8 +132,8 @@ int snd_soc_dpcm_be_can_update(struct snd_soc_pcm_runtime *fe,
 struct snd_pcm_substream *
 	snd_soc_dpcm_get_substream(struct snd_soc_pcm_runtime *be, int stream);
 
-/* internal use only */
-int soc_dpcm_runtime_update(struct snd_soc_card *);
+/* update audio routing between PCMs and any DAI links */
+int snd_soc_dpcm_runtime_update(struct snd_soc_card *card);
 
 #ifdef CONFIG_DEBUG_FS
 void soc_dpcm_debugfs_add(struct snd_soc_pcm_runtime *rtd);
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index e00a465a7c32..d5eb52fe115b 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -2291,7 +2291,7 @@ int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm,
 	card->update = NULL;
 	mutex_unlock(&card->dapm_mutex);
 	if (ret > 0)
-		soc_dpcm_runtime_update(card);
+		snd_soc_dpcm_runtime_update(card);
 	return ret;
 }
 EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power);
@@ -2356,7 +2356,7 @@ int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm,
 	card->update = NULL;
 	mutex_unlock(&card->dapm_mutex);
 	if (ret > 0)
-		soc_dpcm_runtime_update(card);
+		snd_soc_dpcm_runtime_update(card);
 	return ret;
 }
 EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power);
@@ -3396,7 +3396,7 @@ int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol,
 	mutex_unlock(&card->dapm_mutex);
 
 	if (ret > 0)
-		soc_dpcm_runtime_update(card);
+		snd_soc_dpcm_runtime_update(card);
 
 	return change;
 }
@@ -3501,7 +3501,7 @@ int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol,
 	mutex_unlock(&card->dapm_mutex);
 
 	if (ret > 0)
-		soc_dpcm_runtime_update(card);
+		snd_soc_dpcm_runtime_update(card);
 
 	return change;
 }
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index bf4c5dc903ce..2b915f41e955 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -295,6 +295,7 @@ void snd_soc_runtime_activate(struct snd_soc_pcm_runtime *rtd, int stream)
 {
 	snd_soc_runtime_action(rtd, stream, 1);
 }
+EXPORT_SYMBOL_GPL(snd_soc_runtime_activate);
 
 /**
  * snd_soc_runtime_deactivate() - Decrement active count for PCM runtime components
@@ -310,6 +311,7 @@ void snd_soc_runtime_deactivate(struct snd_soc_pcm_runtime *rtd, int stream)
 {
 	snd_soc_runtime_action(rtd, stream, -1);
 }
+EXPORT_SYMBOL_GPL(snd_soc_runtime_deactivate);
 
 /**
  * snd_soc_runtime_ignore_pmdown_time() - Check whether to ignore the power down delay
@@ -2969,7 +2971,7 @@ static int soc_dpcm_fe_runtime_update(struct snd_soc_pcm_runtime *fe, int new)
 /* Called by DAPM mixer/mux changes to update audio routing between PCMs and
  * any DAI links.
  */
-int soc_dpcm_runtime_update(struct snd_soc_card *card)
+int snd_soc_dpcm_runtime_update(struct snd_soc_card *card)
 {
 	struct snd_soc_pcm_runtime *fe;
 	int ret = 0;
@@ -2993,6 +2995,7 @@ int soc_dpcm_runtime_update(struct snd_soc_card *card)
 	mutex_unlock(&card->mutex);
 	return ret;
 }
+EXPORT_SYMBOL_GPL(snd_soc_dpcm_runtime_update);
 
 static void dpcm_fe_dai_cleanup(struct snd_pcm_substream *fe_substream)
 {
-- 
2.16.4