Add headset jack detection for SDP3430 boards using SoC jack reporting interface. Headset detection on SDP3430 board is achieved through TWL4030 GPIO_2 pin.

Signed-off-by: Misael Lopez Cruz x0052729@ti.com --- sound/soc/omap/sdp3430.c | 49 ++++++++++++++++++++++++++++++++++++++++++++- 1 files changed, 47 insertions(+), 2 deletions(-)

diff --git a/sound/soc/omap/sdp3430.c b/sound/soc/omap/sdp3430.c index 4eab4b4..b595aa4 100644 --- a/sound/soc/omap/sdp3430.c +++ b/sound/soc/omap/sdp3430.c @@ -28,6 +28,7 @@ #include <sound/pcm.h> #include <sound/soc.h> #include <sound/soc-dapm.h> +#include <sound/jack.h>

#include <asm/mach-types.h> #include <mach/hardware.h> @@ -122,7 +123,7 @@ static int sdp3430_twl4030_init(struct snd_soc_codec *codec) /* SDP3430 connected pins */ snd_soc_dapm_enable_pin(codec, "Ext Mic"); snd_soc_dapm_enable_pin(codec, "Ext Spk"); - snd_soc_dapm_enable_pin(codec, "Headset Jack"); + snd_soc_dapm_disable_pin(codec, "Headset Jack");

/* TWL4030 not connected pins */ snd_soc_dapm_nc_pin(codec, "AUXL"); @@ -144,6 +145,29 @@ static int sdp3430_twl4030_init(struct snd_soc_codec *codec) return ret; }

+/* Headset jack */ +struct snd_soc_jack *hs_jack; + +/* Headset jack DAPM pins */ +struct snd_soc_jack_pin hs_jack_pins[] = { + { + .pin = "Headset Jack", + .mask = SND_JACK_HEADSET, + .invert = 0, + }, +}; + +/* Headset jack gpios */ +struct snd_soc_jack_gpio hs_jack_gpios[] = { + { + .gpio = (OMAP_MAX_GPIO_LINES + 2), + .name = "hsdet-gpio", + .report = SND_JACK_HEADSET, + .invert = 0, + .debounce_time = 200, + }, +}; + /* Digital audio interface glue - connects codec <--> CPU */ static struct snd_soc_dai_link sdp3430_dai = { .name = "TWL4030", @@ -194,8 +218,25 @@ static int __init sdp3430_soc_init(void) if (ret) goto err1;

- return 0; + /* Headset jack detection */ + hs_jack = kzalloc(sizeof(struct snd_soc_jack), GFP_KERNEL); + if (!hs_jack) + return -ENOMEM; + + ret = snd_soc_jack_new(&snd_soc_sdp3430, "SDP3430 headset jack", + SND_JACK_HEADSET, hs_jack); + if (ret) + return ret; + + ret = snd_soc_jack_add_pins(hs_jack, ARRAY_SIZE(hs_jack_pins), + hs_jack_pins); + if (ret) + return ret; + + ret = snd_soc_jack_add_gpios(hs_jack, ARRAY_SIZE(hs_jack_gpios), + hs_jack_gpios);

+ return ret; err1: printk(KERN_ERR "Unable to add platform device\n"); platform_device_put(sdp3430_snd_device); @@ -206,6 +247,10 @@ module_init(sdp3430_soc_init);

static void __exit sdp3430_soc_exit(void) { + snd_soc_jack_free_gpios(hs_jack, ARRAY_SIZE(hs_jack_gpios), + hs_jack_gpios); + kfree(hs_jack); + platform_device_unregister(sdp3430_snd_device); } module_exit(sdp3430_soc_exit);