[alsa-devel] Applied "ASoC: soc-core: add snd_soc_dapm_init()" to the asoc tree

[Mark Brown]

The patch

   ASoC: soc-core: add snd_soc_dapm_init()

has been applied to the asoc tree at

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.4

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From 95c267dd20431f0eb54ca204bd73a7d85c532a37 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
Date: Fri, 23 Aug 2019 09:58:52 +0900
Subject: [PATCH] ASoC: soc-core: add snd_soc_dapm_init()

It is easy to read code if it is cleanly using paired function/naming,
like start <-> stop, register <-> unregister, etc, etc.
But, current ALSA SoC code is very random, unbalance, not paired, etc.
It is easy to create bug at the such code, and it will be difficult to
debug.

soc-dapm has snd_soc_dapm_free() which cleanups debugfs, widgets, list.
But, there is no paired initialize function.
This patch adds snd_soc_dapm_init() and initilaizing dapm

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
Link: https://lore.kernel.org/r/87pnkw7lbj.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie at kernel.org>
---
 include/sound/soc-dapm.h |  3 +++
 sound/soc/soc-core.c     | 14 ++------------
 sound/soc/soc-dapm.c     | 21 +++++++++++++++++++++
 3 files changed, 26 insertions(+), 12 deletions(-)

diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index 2aa73d6dd7be..dd993dd29229 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -416,6 +416,9 @@ int snd_soc_dapm_update_dai(struct snd_pcm_substream *substream,
 /* dapm path setup */
 int snd_soc_dapm_new_widgets(struct snd_soc_card *card);
 void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm);
+void snd_soc_dapm_init(struct snd_soc_dapm_context *dapm,
+		       struct snd_soc_card *card,
+		       struct snd_soc_component *component);
 int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm,
 			    const struct snd_soc_dapm_route *route, int num);
 int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm,
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 21c005a044e8..8e831ae59eb8 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1023,14 +1023,7 @@ static int soc_probe_component(struct snd_soc_card *card,
 
 	soc_init_component_debugfs(component);
 
-	INIT_LIST_HEAD(&dapm->list);
-	dapm->card		= card;
-	dapm->dev		= component->dev;
-	dapm->component		= component;
-	dapm->bias_level	= SND_SOC_BIAS_OFF;
-	dapm->idle_bias_off	= !component->driver->idle_bias_on;
-	dapm->suspend_bias_off	= component->driver->suspend_bias_off;
-	list_add(&dapm->list, &card->dapm_list);
+	snd_soc_dapm_init(dapm, card, component);
 
 	ret = snd_soc_dapm_new_controls(dapm,
 					component->driver->dapm_widgets,
@@ -1937,10 +1930,7 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card)
 	}
 	mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT);
 
-	card->dapm.bias_level = SND_SOC_BIAS_OFF;
-	card->dapm.dev = card->dev;
-	card->dapm.card = card;
-	list_add(&card->dapm.list, &card->dapm_list);
+	snd_soc_dapm_init(&card->dapm, card, NULL);
 
 	/* check whether any platform is ignore machine FE and using topology */
 	soc_check_tplg_fes(card);
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 10819b3e0b98..b6378f025836 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -4717,6 +4717,27 @@ void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm)
 }
 EXPORT_SYMBOL_GPL(snd_soc_dapm_free);
 
+void snd_soc_dapm_init(struct snd_soc_dapm_context *dapm,
+		       struct snd_soc_card *card,
+		       struct snd_soc_component *component)
+{
+	dapm->card		= card;
+	dapm->component		= component;
+	dapm->bias_level	= SND_SOC_BIAS_OFF;
+
+	if (component) {
+		dapm->dev		= component->dev;
+		dapm->idle_bias_off	= !component->driver->idle_bias_on,
+		dapm->suspend_bias_off	= component->driver->suspend_bias_off;
+	} else {
+		dapm->dev		= card->dev;
+	}
+
+	INIT_LIST_HEAD(&dapm->list);
+	list_add(&dapm->list, &card->dapm_list);
+}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_init);
+
 static void soc_dapm_shutdown_dapm(struct snd_soc_dapm_context *dapm)
 {
 	struct snd_soc_card *card = dapm->card;
-- 
2.20.1