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ASoC: ac97: add gpio chip

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The AC97 specification provides a guide for 16 GPIOs in the codecs. If
the gpiolib is compiled in the kernel, declare a gpio chip.

This was tested with a pxa27x board (mioa701) and a wm9713 codec.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Robert Jarzmik
2015-11-11 13:12:51 +01:00
committed by Mark Brown
parent 8005c49d9a
commit 9bf5c3d11f
2 changed files with 128 additions and 0 deletions
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3
include/sound/ac97_codec.h
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@@ -417,11 +417,13 @@
#define AC97_RATES_MIC_ADC 4
#define AC97_RATES_SPDIF 5
#define AC97_NUM_GPIOS 16
/*
*
*/
struct snd_ac97;
struct snd_ac97_gpio_priv;
struct snd_pcm_chmap;
struct snd_ac97_build_ops {
@@ -529,6 +531,7 @@ struct snd_ac97 {
struct delayed_work power_work;
#endif
struct device dev;
struct snd_ac97_gpio_priv *gpio_priv;
struct snd_pcm_chmap *chmaps[2]; /* channel-maps (optional) */
};