This patch add an export of a function. We can fill the detect_jack function in the struct snd_soc_codec_driver, and to tell sound machine driver (simple-card) that the codec supports the jack detection feature.
Then, the machine driver (simple-card) call the export function of the sound framework to initialize jack detection via the codec. Signed-off-by: Xing Zheng <[email protected]> --- Changes in v1: - clean up the commit message and notes include/sound/soc.h | 7 +++++++ sound/soc/soc-jack.c | 17 +++++++++++++++++ 2 files changed, 24 insertions(+) diff --git a/include/sound/soc.h b/include/sound/soc.h index 02b4a21..64e3f4a 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 +/* call and init jack detect via the 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 +924,9 @@ struct snd_soc_codec_driver { enum snd_soc_dapm_type, int); bool ignore_pmdown_time; /* Doesn't benefit from pmdown delay */ + + /* fill this function if the codec supports jack detection */ + 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..ccaf546 100644 --- a/sound/soc/soc-jack.c +++ b/sound/soc/soc-jack.c @@ -436,3 +436,20 @@ void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count, } EXPORT_SYMBOL_GPL(snd_soc_jack_free_gpios); #endif /* CONFIG_GPIOLIB */ + +/** + * snd_soc_jack_codec_detect - Call and init jack detection if the codec support it + * + * @codec: ASoC codec + * @jack: ASoC jack + * + * Call and initialize the codec jack detection if the codec supports it and fills + * the detect_jack function in the struct snd_soc_codec_driver. + */ +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
