This patch is adding support of headphone autodetection on PAZ00 board.

Signed-off-by: Leon Romanovsky leon@leon.nu --- arch/arm/boot/dts/tegra-paz00.dts | 1 + sound/soc/tegra/tegra_alc5632.c | 40 +++++++++++++++++++++++++++++++++--- 2 files changed, 37 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/tegra-paz00.dts b/arch/arm/boot/dts/tegra-paz00.dts index 692d20c..f95bade 100644 --- a/arch/arm/boot/dts/tegra-paz00.dts +++ b/arch/arm/boot/dts/tegra-paz00.dts @@ -64,6 +64,7 @@

nvidia,audio-codec = <&alc5632>; nvidia,i2s-controller = <&tegra_i2s1>; + nvidia,hp-det-gpios = <&gpio 178 0>; /* gpio PW2 */ };

serial@70006000 { diff --git a/sound/soc/tegra/tegra_alc5632.c b/sound/soc/tegra/tegra_alc5632.c index 22348e8..ce211af 100644 --- a/sound/soc/tegra/tegra_alc5632.c +++ b/sound/soc/tegra/tegra_alc5632.c @@ -18,6 +18,7 @@ #include <linux/platform_device.h> #include <linux/slab.h> #include <linux/gpio.h> +#include <linux/of_gpio.h>

#include <sound/core.h> #include <sound/jack.h> @@ -34,9 +35,14 @@

#define DRV_NAME "tegra-alc5632"

+#define GPIO_HP_DET BIT(1) + + struct tegra_alc5632 { struct tegra_asoc_utils_data util_data; struct platform_device *pcm_dev; + int gpio_requested; + int gpio_hp_det; };

static int tegra_alc5632_asoc_hw_params(struct snd_pcm_substream *substream, @@ -86,6 +92,13 @@ static struct snd_soc_jack_pin tegra_alc5632_hs_jack_pins[] = { }, };

+static struct snd_soc_jack_gpio tegra_alc5632_hp_jack_gpio = { + .name = "Headphone detect", + .report = SND_JACK_HEADPHONE, + .debounce_time = 150, + .invert = 1, +}; + static const struct snd_soc_dapm_widget tegra_alc5632_dapm_widgets[] = { SND_SOC_DAPM_SPK("Int Spk", NULL), SND_SOC_DAPM_HP("Headset Stereophone", NULL), @@ -114,6 +127,9 @@ static int tegra_alc5632_asoc_init(struct snd_soc_pcm_runtime *rtd) { struct snd_soc_codec *codec = rtd->codec; struct snd_soc_dapm_context *dapm = &codec->dapm; + struct device_node *np = codec->card->dev->of_node; + struct tegra_alc5632 *machine = snd_soc_card_get_drvdata(codec->card); + int ret;

snd_soc_jack_new(codec, "Headset Jack", SND_JACK_HEADSET, &tegra_alc5632_hs_jack); @@ -121,6 +137,16 @@ static int tegra_alc5632_asoc_init(struct snd_soc_pcm_runtime *rtd) ARRAY_SIZE(tegra_alc5632_hs_jack_pins), tegra_alc5632_hs_jack_pins);

+ machine->gpio_hp_det = of_get_named_gpio(np, "nvidia,hp-det-gpios", 0); + + if (gpio_is_valid(machine->gpio_hp_det)) { + tegra_alc5632_hp_jack_gpio.gpio = machine->gpio_hp_det; + snd_soc_jack_add_gpios(&tegra_alc5632_hs_jack, + 1, + &tegra_alc5632_hp_jack_gpio); + machine->gpio_requested |= GPIO_HP_DET; + } + snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1");

return 0; @@ -243,13 +269,19 @@ err: static int __devexit tegra_alc5632_remove(struct platform_device *pdev) { struct snd_soc_card *card = platform_get_drvdata(pdev); - struct tegra_alc5632 *alc5632 = snd_soc_card_get_drvdata(card); + struct tegra_alc5632 *machine = snd_soc_card_get_drvdata(card); + + if (machine->gpio_requested & GPIO_HP_DET) + snd_soc_jack_free_gpios(&tegra_alc5632_hs_jack, + 1, + &tegra_alc5632_hp_jack_gpio); + machine->gpio_requested = 0;

snd_soc_unregister_card(card);

- tegra_asoc_utils_fini(&alc5632->util_data); - if (!IS_ERR(alc5632->pcm_dev)) - platform_device_unregister(alc5632->pcm_dev); + tegra_asoc_utils_fini(&machine->util_data); + if (!IS_ERR(machine->pcm_dev)) + platform_device_unregister(machine->pcm_dev);

return 0; }