linux-kernel - [PATCH 1/3] ASoC: jack: Add a jack detect callback via codec

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Date:	Mon, 18 Apr 2016 16:17:30 +0800
From:	Xing Zheng <zhengxing@...k-chips.com>
To:	linux-rockchip@...ts.infradead.org
Cc:	heiko@...ech.de, Adam.Thomson@...semi.com,
	sugar.zhang@...k-chips.com, jay.xu@...k-chips.com,
	broonie@...nel.org, Xing Zheng <zhengxing@...k-chips.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 1/3] ASoC: jack: Add a jack detect callback via codec

This patch add a callback when a codec have the jack detect feature.

Signed-off-by: Xing Zheng <zhengxing@...k-chips.com>
---

 include/sound/soc.h  |    6 ++++++
 sound/soc/soc-jack.c |    8 ++++++++
 2 files changed, 14 insertions(+)

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 02b4a21..ff105a4 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -547,6 +547,10 @@ static inline void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
 }
 #endif
 
+/* init jack detect via codec */
+void snd_soc_jack_codec_detect(struct snd_soc_codec *codec,
+				struct snd_soc_jack *jack);
+
 /* codec register bit access */
 int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned int reg,
 				unsigned int mask, unsigned int value);
@@ -920,6 +924,8 @@ struct snd_soc_codec_driver {
 			     enum snd_soc_dapm_type, int);
 
 	bool ignore_pmdown_time;  /* Doesn't benefit from pmdown delay */
+
+	void (*detect_jack)(struct snd_soc_codec *codec, struct snd_soc_jack *jack);
 };
 
 /* SoC platform interface */
diff --git a/sound/soc/soc-jack.c b/sound/soc/soc-jack.c
index fbaa1bb..e292fb4 100644
--- a/sound/soc/soc-jack.c
+++ b/sound/soc/soc-jack.c
@@ -436,3 +436,11 @@ void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
 }
 EXPORT_SYMBOL_GPL(snd_soc_jack_free_gpios);
 #endif	/* CONFIG_GPIOLIB */
+
+void snd_soc_jack_codec_detect(struct snd_soc_codec *codec,
+				struct snd_soc_jack *jack)
+{
+	if (codec && codec->driver && codec->driver->detect_jack)
+		codec->driver->detect_jack(codec, jack);
+}
+EXPORT_SYMBOL_GPL(snd_soc_jack_codec_detect);
-- 
1.7.9.5