static int max97236_probe(struct snd_soc_codec *codec)
{
struct max97236_priv *max97236 = snd_soc_codec_get_drvdata(codec);
unsigned int reg;
int ret;
#ifdef MAX97236_AUTOMODE1_JACK_DETECTION
dev_info(codec->dev, "built on %s at %s, mode is DETECT1\n",
__DATE__,
__TIME__);
#else
dev_info(codec->dev, "built on %s at %s, mode is DETECT0\n",
__DATE__,
__TIME__);
#endif
dev_info(codec->dev, "build number %s\n", MAX97236_REVISION);
max97236->codec = codec;
codec->control_data = max97236->regmap;
codec->dapm.idle_bias_off = 1;
codec->cache_sync = 1;
max97236->jack_state = M97236_JACK_STATE_UNKNOWN;
clk_cdev1 = clk_get_sys("extern1", NULL);
ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_REGMAP);
if (ret != 0) {
dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
goto err_access;
}
/* Disable all interrupts until we're ready to handle them */
regmap_write(max97236->regmap, M97236_REG_04_IRQ_MASK1, 0x00);
regmap_write(max97236->regmap, M97236_REG_05_IRQ_MASK2, 0x00);
regmap_write(max97236->regmap, M97236_REG_09_MICROPHONE,
M97236_BIAS_MASK);
regmap_write(max97236->regmap, M97236_REG_16_KEYSCAN_DELAY, 0x18);
ret = regmap_read(max97236->regmap, M97236_REG_0B_REV_ID, ®);
if (ret < 0) {
dev_err(codec->dev, "Cannot read device version: %d\n", ret);
goto err_access;
}
reg >>= M97236_ID_SHIFT;
dev_info(codec->dev, "MAX97236 Vendor ID = 0x%02x\n", reg);
if (reg == M97236_REVA) {
max97236->devtype = MAX97236;
} else {
dev_err(codec->dev, "Unrecognized device 0x%02X\n", reg);
ret = -1;
goto err_access;
}
/* configure clock divider registers */
max97236_set_clk_dividers(max97236);
dev_info(codec->dev, "gpio = %d\n", max97236->irq);
/* Register for interrupts */
if (max97236->irq) {
ret = gpio_request(max97236->irq, "max97236_hs_irq");
if (ret)
dev_err(codec->dev, "failed to allocate gpio\n");
gpio_direction_input(max97236->irq);
/* register an audio interrupt */
ret = request_threaded_irq(gpio_to_irq(max97236->irq), NULL,
max97236_interrupt,
IRQF_TRIGGER_FALLING,
"max97236_interrupt", codec);
if (ret)
dev_err(codec->dev, "Failed to request IRQ: %d\n", ret);
}
max97236->ignore_int = 0;
INIT_DELAYED_WORK(&max97236->jack_work, max97236_jack_work);
wake_lock_init(&jack_key_lock , WAKE_LOCK_SUSPEND, "jack key wake lock" );
/* Clear any interrupts then enable jack detection */
regmap_read(max97236->regmap, M97236_REG_00_STATUS1,
®);
regmap_read(max97236->regmap, M97236_REG_01_STATUS2,
®);
#ifdef MAX97236_AUTOMODE1_JACK_DETECTION
max97236_configure_for_detection(max97236,
M97236_AUTO_MODE_1);
#else
max97236_configure_for_detection(max97236,
M97236_AUTO_MODE_0);
#endif
max97236_handle_pdata(codec);
max97236_add_widgets(codec);
wake_lock_init(&wakelock, WAKE_LOCK_SUSPEND, "headset detect");
wake_lock_init(&wakelock_h, WAKE_LOCK_SUSPEND, "headset event detect");
err_access:
return ret;
}
static int max97236_probe(struct snd_soc_codec *codec)
{
struct max97236_priv *max97236 = snd_soc_codec_get_drvdata(codec);
struct max97236_pdata *pdata = max97236->pdata;
unsigned int reg;
int ret;
#ifdef MAX97236_AUTOMODE1_JACK_DETECTION
dev_info(codec->dev, "built on %s at %s, mode is DETECT1\n",
__DATE__,
__TIME__);
#else
dev_info(codec->dev, "built on %s at %s, mode is DETECT0\n",
__DATE__,
__TIME__);
#endif
dev_info(codec->dev, "build number %s\n", MAX97236_REVISION);
codec->cache_bypass = 1;
max97236->codec = codec;
codec->control_data = max97236->regmap;
ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_REGMAP);
if (ret != 0) {
dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
goto err_access;
}
/* Disable all interrupts until we're ready to handle them */
regmap_write(max97236->regmap, M97236_REG_04_IRQ_MASK1, 0x00);
regmap_write(max97236->regmap, M97236_REG_05_IRQ_MASK2, 0x00);
regmap_write(max97236->regmap, M97236_REG_09_MICROPHONE,
M97236_BIAS_MASK);
regmap_write(max97236->regmap, M97236_REG_16_KEYSCAN_DELAY, 0x18);
ret = regmap_read(max97236->regmap, M97236_REG_0B_REV_ID, ®);
if (ret < 0) {
dev_err(codec->dev, "Cannot read device version: %d\n", ret);
goto err_access;
}
reg >>= M97236_ID_SHIFT;
dev_info(codec->dev, "MAX97236 ID = 0x%02x\n", reg);
if (reg == M97236_REVA) {
max97236->devtype = MAX97236;
} else {
dev_err(codec->dev, "Unrecognized device 0x%02X\n", reg);
ret = -1;
goto err_access;
}
/* configure clock divider registers */
max97236_set_clk_dividers(max97236, extclk_freq);
if (gpio_is_valid(pdata->irq_gpio)) {
ret = gpio_request(pdata->irq_gpio, "max97236_interrupt");
if (ret) {
dev_err(codec->dev,
"%s: Failed to request max97236_interrupt GPIO, rc=%d\n",
__func__, ret);
}
ret = gpio_direction_input(pdata->irq_gpio);
if (ret) {
dev_err(codec->dev,
"%s: Failed to configure max97236_interrupt GPIO, rc=%d\n",
__func__, ret);
gpio_free(pdata->irq_gpio);
}
max97236->irq = gpio_to_irq(pdata->irq_gpio);
dev_info(codec->dev,"Setting irq: GPIO %d -> irq %d\n",
pdata->irq_gpio, max97236->irq);
if ((request_threaded_irq(max97236->irq, NULL, max97236_interrupt,
IRQF_TRIGGER_FALLING|IRQF_ONESHOT, "max97236_interrupt", codec)) < 0) {
dev_err(codec->dev, "request_irq failed\n");
ret = -1;
goto err_access;
}
}
max97236->ignore_int = 0;
INIT_DELAYED_WORK(&max97236->jack_work, max97236_jack_work);
if (pdata->vreg) {
ret = regulator_set_voltage(pdata->vreg, 2850000, 2850000);
if (ret) {
dev_err(codec->dev, "Setting regulator voltage failed for "
"regulator err = %d\n", ret);
}
ret = regulator_set_optimum_mode(pdata->vreg, 150);
if (ret < 0) {
dev_err(codec->dev, "Setting regulator optimum mode failed for "
"regulator err = %d\n", ret);
}
ret = regulator_enable(pdata->vreg);
if (ret) {
dev_err(codec->dev, "failed to enable supply err = %d\n", ret);
}
}
max97236_handle_pdata(codec);
max97236_add_widgets(codec);
err_access:
return ret;
}