linux-kernel - [PATCH v2 2/3] ASoC: simple-card: move hp and mic detection to soc

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Date:   Mon, 11 Jun 2018 14:15:58 +0900
From:   Katsuhiro Suzuki <suzuki.katsuhiro@...ionext.com>
To:     Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
        Mark Brown <broonie@...nel.org>, alsa-devel@...a-project.org
Cc:     Masami Hiramatsu <masami.hiramatsu@...aro.org>,
        Jassi Brar <jaswinder.singh@...aro.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Katsuhiro Suzuki <suzuki.katsuhiro@...ionext.com>
Subject: [PATCH v2 2/3] ASoC: simple-card: move hp and mic detection to soc_card probe

This patch moves headphone and microphone detection to probe() of
snd_soc_card from init() of snd_soc_dai_link. This is because init()
is called (and an input device /dev/input/eventX is created too)
twice or above if simple card has two or more DAI links.

Signed-off-by: Katsuhiro Suzuki <suzuki.katsuhiro@...ionext.com>

---

Changes from v1:
  - Newly added
---
 sound/soc/generic/simple-card.c | 25 +++++++++++++++++--------
 1 file changed, 17 insertions(+), 8 deletions(-)

diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c
index 1bbd9e46bf2a..9eb26ee06892 100644
--- a/sound/soc/generic/simple-card.c
+++ b/sound/soc/generic/simple-card.c
@@ -149,14 +149,6 @@ static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd)
 	if (ret < 0)
 		return ret;
 
-	ret = asoc_simple_card_init_hp(rtd->card, &priv->hp_jack, PREFIX);
-	if (ret < 0)
-		return ret;
-
-	ret = asoc_simple_card_init_mic(rtd->card, &priv->mic_jack, PREFIX);
-	if (ret < 0)
-		return ret;
-
 	return 0;
 }
 
@@ -350,6 +342,22 @@ static int asoc_simple_card_parse_of(struct simple_card_data *priv)
 	return ret;
 }
 
+static int asoc_simple_soc_card_probe(struct snd_soc_card *card)
+{
+	struct simple_card_data *priv = snd_soc_card_get_drvdata(card);
+	int ret;
+
+	ret = asoc_simple_card_init_hp(card, &priv->hp_jack, NULL);
+	if (ret < 0)
+		return ret;
+
+	ret = asoc_simple_card_init_mic(card, &priv->mic_jack, NULL);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
 static int asoc_simple_card_probe(struct platform_device *pdev)
 {
 	struct simple_card_data *priv;
@@ -385,6 +393,7 @@ static int asoc_simple_card_probe(struct platform_device *pdev)
 	card->dev		= dev;
 	card->dai_link		= priv->dai_link;
 	card->num_links		= num;
+	card->probe		= asoc_simple_soc_card_probe;
 
 	if (np && of_device_is_available(np)) {
 
-- 
2.17.1