NAUDINT interrupt line is provided by the TWL6030 codec to signal externally events like headset plug/unplug, hook, power-up sequence completion, etc.

Signed-off-by: Misael Lopez Cruz x0052729@ti.com --- sound/soc/codecs/twl6030.c | 70 ++++++++++++++++++++++++++++++++++++++++--- sound/soc/codecs/twl6030.h | 14 +++++++++ 2 files changed, 79 insertions(+), 5 deletions(-)

diff --git a/sound/soc/codecs/twl6030.c b/sound/soc/codecs/twl6030.c index 8548442..56fe136 100644 --- a/sound/soc/codecs/twl6030.c +++ b/sound/soc/codecs/twl6030.c @@ -46,6 +46,7 @@ struct twl6030_data { struct snd_soc_codec codec; int audpwron; + int naudint; int codec_powered; int pll; int non_lp; @@ -61,7 +62,7 @@ static const u8 twl6030_reg[TWL6030_CACHEREGNUM] = { 0x4B, /* TWL6030_ASICID (ro) 0x01 */ 0x00, /* TWL6030_ASICREV (ro) 0x02 */ 0x00, /* TWL6030_INTID 0x03 */ - 0x7B, /* TWL6030_INTMR 0x04 */ + 0x00, /* TWL6030_INTMR 0x04 */ 0x00, /* TWL6030_NCPCTRL 0x05 */ 0x00, /* TWL6030_LDOCTL 0x06 */ 0x00, /* TWL6030_HPPLLCTL 0x07 */ @@ -367,6 +368,39 @@ static int twl6030_power_mode_event(struct snd_soc_dapm_widget *w, return 0; }

+/* audio interrupt handler */ +static irqreturn_t twl6030_naudint_handler(int irq, void *data) +{ + struct snd_soc_codec *codec = data; + u8 intid; + + twl_i2c_read_u8(TWL6030_MODULE_AUDIO, &intid, TWL6030_REG_INTID); + + switch (intid) { + case TWL6030_THINT: + dev_alert(codec->dev, "die temp over-limit detection\n"); + break; + case TWL6030_PLUGINT: + case TWL6030_UNPLUGINT: + case TWL6030_HOOKINT: + break; + case TWL6030_HFINT: + dev_alert(codec->dev, "hf drivers over current detection\n"); + break; + case TWL6030_VIBINT: + dev_alert(codec->dev, "vib drivers over current detection\n"); + break; + case TWL6030_READYINT: + dev_alert(codec->dev, "codec is ready\n"); + break; + default: + dev_err(codec->dev, "unknown audio interrupt %d\n", intid); + break; + } + + return IRQ_HANDLED; +} + /* * MICATT volume control: * from -6 to 0 dB in 6 dB steps @@ -993,19 +1027,23 @@ static int __devinit twl6030_codec_probe(struct platform_device *pdev) struct twl_codec_data *twl_codec = pdev->dev.platform_data; struct snd_soc_codec *codec; struct twl6030_data *priv; - int audpwron; + int audpwron, naudint; int ret = 0;

priv = kzalloc(sizeof(struct twl6030_data), GFP_KERNEL); if (priv == NULL) return -ENOMEM;

- if (twl_codec) + if (twl_codec) { audpwron = twl_codec->audpwron_gpio; - else + naudint = twl_codec->naudint_irq; + } else { audpwron = -EINVAL; + naudint = 0; + }

priv->audpwron = audpwron; + priv->naudint = naudint;

codec = &priv->codec; codec->dev = &pdev->dev; @@ -1043,13 +1081,28 @@ static int __devinit twl6030_codec_probe(struct platform_device *pdev) priv->codec_powered = 0; }

+ if (naudint) { + /* audio interrupt */ + ret = request_threaded_irq(naudint, NULL, + twl6030_naudint_handler, + IRQF_TRIGGER_LOW | IRQF_ONESHOT, + "twl6030_codec", codec); + if (ret) + goto gpio2_err; + } else { + dev_warn(codec->dev, + "no naudint irq, audio interrupts disabled\n"); + twl6030_write_reg_cache(codec, TWL6030_REG_INTMR, + TWL6030_ALLINT_MSK); + } + /* init vio registers */ twl6030_init_vio_regs(codec);

/* power on device */ ret = twl6030_set_bias_level(codec, SND_SOC_BIAS_STANDBY); if (ret) - goto gpio2_err; + goto irq_err;

ret = snd_soc_register_codec(codec); if (ret) @@ -1068,6 +1121,9 @@ dai_err: twl6030_codec = NULL; reg_err: twl6030_set_bias_level(codec, SND_SOC_BIAS_OFF); +irq_err: + if (naudint) + free_irq(naudint, codec); gpio2_err: if (gpio_is_valid(audpwron)) gpio_free(audpwron); @@ -1082,10 +1138,14 @@ static int __devexit twl6030_codec_remove(struct platform_device *pdev) { struct twl6030_data *priv = twl6030_codec->private_data; int audpwron = priv->audpwron; + int naudint = priv->naudint;

if (gpio_is_valid(audpwron)) gpio_free(audpwron);

+ if (naudint) + free_irq(naudint, twl6030_codec); + snd_soc_unregister_dai(&twl6030_dai); snd_soc_unregister_codec(twl6030_codec);

diff --git a/sound/soc/codecs/twl6030.h b/sound/soc/codecs/twl6030.h index 87f1e1e..786fd80 100644 --- a/sound/soc/codecs/twl6030.h +++ b/sound/soc/codecs/twl6030.h @@ -67,6 +67,20 @@ #define TWL6030_VIOREGNUM 18 #define TWL6030_VDDREGNUM 21

+/* INTID (0x03) fields */ + +#define TWL6030_THINT 0x01 +#define TWL6030_PLUGINT 0x02 +#define TWL6030_UNPLUGINT 0x04 +#define TWL6030_HOOKINT 0x08 +#define TWL6030_HFINT 0x10 +#define TWL6030_VIBINT 0x20 +#define TWL6030_READYINT 0x40 + +/* INTMR (0x04) fields */ + +#define TWL6030_ALLINT_MSK 0x7B + /* NCPCTL (0x05) fields */

#define TWL6030_NCPENA 0x01