Beispiel #1
0
static int drv2667_init(struct drv2667_data *haptics)
{
	int error;

	/* Set default haptic frequency to 195Hz on Page 1*/
	haptics->frequency = 195;
	haptics->page = DRV2667_PAGE_1;

	error = regmap_register_patch(haptics->regmap,
				      drv2667_init_regs,
				      ARRAY_SIZE(drv2667_init_regs));
	if (error) {
		dev_err(&haptics->client->dev,
			"Failed to write init registers: %d\n",
			error);
		return error;
	}

	error = regmap_write(haptics->regmap, DRV2667_PAGE, haptics->page);
	if (error) {
		dev_err(&haptics->client->dev, "Failed to set page: %d\n",
			error);
		goto error_out;
	}

	error = drv2667_set_waveform_freq(haptics);
	if (error)
		goto error_page;

	error = regmap_register_patch(haptics->regmap,
				      drv2667_page1_init,
				      ARRAY_SIZE(drv2667_page1_init));
	if (error) {
		dev_err(&haptics->client->dev,
			"Failed to write page registers: %d\n",
			error);
		return error;
	}

	error = regmap_write(haptics->regmap, DRV2667_PAGE, DRV2667_PAGE_0);
	return error;

error_page:
	regmap_write(haptics->regmap, DRV2667_PAGE, DRV2667_PAGE_0);
error_out:
	return error;
}
Beispiel #2
0
static int tscs42xx_i2c_probe(struct i2c_client *i2c,
		const struct i2c_device_id *id)
{
	struct tscs42xx *tscs42xx;
	int ret = 0;

	tscs42xx = devm_kzalloc(&i2c->dev, sizeof(*tscs42xx), GFP_KERNEL);
	if (!tscs42xx) {
		ret = -ENOMEM;
		dev_err(&i2c->dev,
			"Failed to allocate memory for data (%d)\n", ret);
		return ret;
	}
	i2c_set_clientdata(i2c, tscs42xx);
	tscs42xx->dev = &i2c->dev;

	tscs42xx->regmap = devm_regmap_init_i2c(i2c, &tscs42xx_regmap);
	if (IS_ERR(tscs42xx->regmap)) {
		ret = PTR_ERR(tscs42xx->regmap);
		dev_err(tscs42xx->dev, "Failed to allocate regmap (%d)\n", ret);
		return ret;
	}

	init_coeff_ram_cache(tscs42xx);

	ret = part_is_valid(tscs42xx);
	if (ret <= 0) {
		dev_err(tscs42xx->dev, "No valid part (%d)\n", ret);
		ret = -ENODEV;
		return ret;
	}

	ret = regmap_write(tscs42xx->regmap, R_RESET, RV_RESET_ENABLE);
	if (ret < 0) {
		dev_err(tscs42xx->dev, "Failed to reset device (%d)\n", ret);
		return ret;
	}

	ret = regmap_register_patch(tscs42xx->regmap, tscs42xx_patch,
			ARRAY_SIZE(tscs42xx_patch));
	if (ret < 0) {
		dev_err(tscs42xx->dev, "Failed to apply patch (%d)\n", ret);
		return ret;
	}

	mutex_init(&tscs42xx->audio_params_lock);
	mutex_init(&tscs42xx->coeff_ram_lock);
	mutex_init(&tscs42xx->pll_lock);

	ret = snd_soc_register_codec(tscs42xx->dev, &soc_codec_dev_tscs42xx,
			&tscs42xx_dai, 1);
	if (ret) {
		dev_err(tscs42xx->dev, "Failed to register codec (%d)\n", ret);
		return ret;
	}

	return 0;
}
Beispiel #3
0
static int rt5616_i2c_probe(struct i2c_client *i2c,
		    const struct i2c_device_id *id)
{
	struct rt5616_priv *rt5616;
	unsigned int val;
	int ret;

	rt5616 = devm_kzalloc(&i2c->dev, sizeof(struct rt5616_priv),
				GFP_KERNEL);
	if (rt5616 == NULL)
		return -ENOMEM;

	i2c_set_clientdata(i2c, rt5616);

	rt5616->regmap = devm_regmap_init_i2c(i2c, &rt5616_regmap);
	if (IS_ERR(rt5616->regmap)) {
		ret = PTR_ERR(rt5616->regmap);
		dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
			ret);
		return ret;
	}

	regmap_read(rt5616->regmap, RT5616_DEVICE_ID, &val);
	if (val != 0x6281) {
		dev_err(&i2c->dev,
			"Device with ID register %#x is not rt5616\n",
			val);
		return -ENODEV;
	}
	regmap_write(rt5616->regmap, RT5616_RESET, 0);
	regmap_update_bits(rt5616->regmap, RT5616_PWR_ANLG1,
		RT5616_PWR_VREF1 | RT5616_PWR_MB |
		RT5616_PWR_BG | RT5616_PWR_VREF2,
		RT5616_PWR_VREF1 | RT5616_PWR_MB |
		RT5616_PWR_BG | RT5616_PWR_VREF2);
	mdelay(10);
	regmap_update_bits(rt5616->regmap, RT5616_PWR_ANLG1,
		RT5616_PWR_FV1 | RT5616_PWR_FV2,
		RT5616_PWR_FV1 | RT5616_PWR_FV2);

	ret = regmap_register_patch(rt5616->regmap, init_list,
				    ARRAY_SIZE(init_list));
	if (ret != 0)
		dev_warn(&i2c->dev, "Failed to apply regmap patch: %d\n", ret);

	regmap_update_bits(rt5616->regmap, RT5616_PWR_ANLG1,
		RT5616_PWR_LDO_DVO_MASK, RT5616_PWR_LDO_DVO_1_2V);

	return snd_soc_register_codec(&i2c->dev, &soc_codec_dev_rt5616,
			rt5616_dai, ARRAY_SIZE(rt5616_dai));

}
static int cs42l52_i2c_probe(struct i2c_client *i2c_client,
			     const struct i2c_device_id *id)
{
	struct cs42l52_private *cs42l52;
	int ret;
	unsigned int devid = 0;
	unsigned int reg;

	cs42l52 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs42l52_private),
			       GFP_KERNEL);
	if (cs42l52 == NULL)
		return -ENOMEM;
	cs42l52->dev = &i2c_client->dev;

	cs42l52->regmap = devm_regmap_init_i2c(i2c_client, &cs42l52_regmap);
	if (IS_ERR(cs42l52->regmap)) {
		ret = PTR_ERR(cs42l52->regmap);
		dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret);
		return ret;
	}

	i2c_set_clientdata(i2c_client, cs42l52);

	if (dev_get_platdata(&i2c_client->dev))
		memcpy(&cs42l52->pdata, dev_get_platdata(&i2c_client->dev),
		       sizeof(cs42l52->pdata));

	ret = regmap_register_patch(cs42l52->regmap, cs42l52_threshold_patch,
				    ARRAY_SIZE(cs42l52_threshold_patch));
	if (ret != 0)
		dev_warn(cs42l52->dev, "Failed to apply regmap patch: %d\n",
			 ret);

	ret = regmap_read(cs42l52->regmap, CS42L52_CHIP, &reg);
	devid = reg & CS42L52_CHIP_ID_MASK;
	if (devid != CS42L52_CHIP_ID) {
		ret = -ENODEV;
		dev_err(&i2c_client->dev,
			"CS42L52 Device ID (%X). Expected %X\n",
			devid, CS42L52_CHIP_ID);
		return ret;
	}

	regcache_cache_only(cs42l52->regmap, true);

	ret =  snd_soc_register_codec(&i2c_client->dev,
			&soc_codec_dev_cs42l52, &cs42l52_dai, 1);
	if (ret < 0)
		return ret;
	return 0;
}
Beispiel #5
0
static int cs35l32_i2c_probe(struct i2c_client *i2c_client,
				       const struct i2c_device_id *id)
{
	struct cs35l32_private *cs35l32;
	struct cs35l32_platform_data *pdata =
		dev_get_platdata(&i2c_client->dev);
	int ret, i;
	unsigned int devid = 0;
	unsigned int reg;


	cs35l32 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs35l32_private),
			       GFP_KERNEL);
	if (!cs35l32) {
		dev_err(&i2c_client->dev, "could not allocate codec\n");
		return -ENOMEM;
	}

	i2c_set_clientdata(i2c_client, cs35l32);

	cs35l32->regmap = devm_regmap_init_i2c(i2c_client, &cs35l32_regmap);
	if (IS_ERR(cs35l32->regmap)) {
		ret = PTR_ERR(cs35l32->regmap);
		dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret);
		return ret;
	}

	if (pdata) {
		cs35l32->pdata = *pdata;
	} else {
		pdata = devm_kzalloc(&i2c_client->dev,
				     sizeof(struct cs35l32_platform_data),
				GFP_KERNEL);
		if (!pdata) {
			dev_err(&i2c_client->dev, "could not allocate pdata\n");
			return -ENOMEM;
		}
		if (i2c_client->dev.of_node) {
			ret = cs35l32_handle_of_data(i2c_client,
						     &cs35l32->pdata);
			if (ret != 0)
				return ret;
		}
	}

	for (i = 0; i < ARRAY_SIZE(cs35l32->supplies); i++)
		cs35l32->supplies[i].supply = cs35l32_supply_names[i];

	ret = devm_regulator_bulk_get(&i2c_client->dev,
				      ARRAY_SIZE(cs35l32->supplies),
				      cs35l32->supplies);
	if (ret != 0) {
		dev_err(&i2c_client->dev,
			"Failed to request supplies: %d\n", ret);
		return ret;
	}

	ret = regulator_bulk_enable(ARRAY_SIZE(cs35l32->supplies),
				    cs35l32->supplies);
	if (ret != 0) {
		dev_err(&i2c_client->dev,
			"Failed to enable supplies: %d\n", ret);
		return ret;
	}

	/* Reset the Device */
	cs35l32->reset_gpio = devm_gpiod_get(&i2c_client->dev,
		"reset-gpios");
	if (IS_ERR(cs35l32->reset_gpio)) {
		ret = PTR_ERR(cs35l32->reset_gpio);
		if (ret != -ENOENT && ret != -ENOSYS)
			return ret;

		cs35l32->reset_gpio = NULL;
	} else {
		ret = gpiod_direction_output(cs35l32->reset_gpio, 0);
		if (ret)
			return ret;
		gpiod_set_value_cansleep(cs35l32->reset_gpio, 1);
	}

	/* initialize codec */
	ret = regmap_read(cs35l32->regmap, CS35L32_DEVID_AB, &reg);
	devid = (reg & 0xFF) << 12;

	ret = regmap_read(cs35l32->regmap, CS35L32_DEVID_CD, &reg);
	devid |= (reg & 0xFF) << 4;

	ret = regmap_read(cs35l32->regmap, CS35L32_DEVID_E, &reg);
	devid |= (reg & 0xF0) >> 4;

	if (devid != CS35L32_CHIP_ID) {
		ret = -ENODEV;
		dev_err(&i2c_client->dev,
			"CS35L32 Device ID (%X). Expected %X\n",
			devid, CS35L32_CHIP_ID);
		return ret;
	}

	ret = regmap_read(cs35l32->regmap, CS35L32_REV_ID, &reg);
	if (ret < 0) {
		dev_err(&i2c_client->dev, "Get Revision ID failed\n");
		return ret;
	}

	ret = regmap_register_patch(cs35l32->regmap, cs35l32_monitor_patch,
				    ARRAY_SIZE(cs35l32_monitor_patch));
	if (ret < 0) {
		dev_err(&i2c_client->dev, "Failed to apply errata patch\n");
		return ret;
	}

	dev_info(&i2c_client->dev,
		 "Cirrus Logic CS35L32, Revision: %02X\n", reg & 0xFF);

	/* Setup VBOOST Management */
	if (cs35l32->pdata.boost_mng)
		regmap_update_bits(cs35l32->regmap, CS35L32_AUDIO_LED_MNGR,
				   CS35L32_BOOST_MASK,
				cs35l32->pdata.boost_mng);

	/* Setup ADSP Format Config */
	if (cs35l32->pdata.sdout_share)
		regmap_update_bits(cs35l32->regmap, CS35L32_ADSP_CTL,
				    CS35L32_ADSP_SHARE_MASK,
				cs35l32->pdata.sdout_share << 3);

	/* Setup ADSP Data Configuration */
	if (cs35l32->pdata.sdout_datacfg)
		regmap_update_bits(cs35l32->regmap, CS35L32_ADSP_CTL,
				   CS35L32_ADSP_DATACFG_MASK,
				cs35l32->pdata.sdout_datacfg << 4);

	/* Setup Low Battery Recovery  */
	if (cs35l32->pdata.batt_recov)
		regmap_update_bits(cs35l32->regmap, CS35L32_BATT_THRESHOLD,
				   CS35L32_BATT_REC_MASK,
				cs35l32->pdata.batt_recov << 1);

	/* Setup Low Battery Threshold */
	if (cs35l32->pdata.batt_thresh)
		regmap_update_bits(cs35l32->regmap, CS35L32_BATT_THRESHOLD,
				   CS35L32_BATT_THRESH_MASK,
				cs35l32->pdata.batt_thresh << 4);

	/* Power down the AMP */
	regmap_update_bits(cs35l32->regmap, CS35L32_PWRCTL1, CS35L32_PDN_AMP,
			    CS35L32_PDN_AMP);

	/* Clear MCLK Error Bit since we don't have the clock yet */
	ret = regmap_read(cs35l32->regmap, CS35L32_INT_STATUS_1, &reg);

	ret =  snd_soc_register_codec(&i2c_client->dev,
			&soc_codec_dev_cs35l32, cs35l32_dai,
			ARRAY_SIZE(cs35l32_dai));
	if (ret < 0)
		goto err_disable;

	return 0;

err_disable:
	regulator_bulk_disable(ARRAY_SIZE(cs35l32->supplies),
			       cs35l32->supplies);
	return ret;
}
Beispiel #6
0
static int wm8993_i2c_probe(struct i2c_client *i2c,
			    const struct i2c_device_id *id)
{
	struct wm8993_priv *wm8993;
	unsigned int reg;
	int ret, i;

	wm8993 = devm_kzalloc(&i2c->dev, sizeof(struct wm8993_priv),
			      GFP_KERNEL);
	if (wm8993 == NULL)
		return -ENOMEM;

	wm8993->dev = &i2c->dev;
	init_completion(&wm8993->fll_lock);

	wm8993->regmap = devm_regmap_init_i2c(i2c, &wm8993_regmap);
	if (IS_ERR(wm8993->regmap)) {
		ret = PTR_ERR(wm8993->regmap);
		dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret);
		return ret;
	}

	i2c_set_clientdata(i2c, wm8993);

	for (i = 0; i < ARRAY_SIZE(wm8993->supplies); i++)
		wm8993->supplies[i].supply = wm8993_supply_names[i];

	ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(wm8993->supplies),
				 wm8993->supplies);
	if (ret != 0) {
		dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret);
		return ret;
	}

	ret = regulator_bulk_enable(ARRAY_SIZE(wm8993->supplies),
				    wm8993->supplies);
	if (ret != 0) {
		dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret);
		return ret;
	}

	ret = regmap_read(wm8993->regmap, WM8993_SOFTWARE_RESET, &reg);
	if (ret != 0) {
		dev_err(&i2c->dev, "Failed to read chip ID: %d\n", ret);
		goto err_enable;
	}

	if (reg != 0x8993) {
		dev_err(&i2c->dev, "Invalid ID register value %x\n", reg);
		ret = -EINVAL;
		goto err_enable;
	}

	ret = regmap_write(wm8993->regmap, WM8993_SOFTWARE_RESET, 0xffff);
	if (ret != 0)
		goto err_enable;

	ret = regmap_register_patch(wm8993->regmap, wm8993_regmap_patch,
				    ARRAY_SIZE(wm8993_regmap_patch));
	if (ret != 0)
		dev_warn(wm8993->dev, "Failed to apply regmap patch: %d\n",
			 ret);

	if (i2c->irq) {
		/* Put GPIO1 into interrupt mode (only GPIO1 can output IRQ) */
		ret = regmap_update_bits(wm8993->regmap, WM8993_GPIO1,
					 WM8993_GPIO1_PD |
					 WM8993_GPIO1_SEL_MASK, 7);
		if (ret != 0)
			goto err_enable;

		ret = request_threaded_irq(i2c->irq, NULL, wm8993_irq,
					   IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
					   "wm8993", wm8993);
		if (ret != 0)
			goto err_enable;

	}

	regulator_bulk_disable(ARRAY_SIZE(wm8993->supplies), wm8993->supplies);

	regcache_cache_only(wm8993->regmap, true);

	ret = snd_soc_register_codec(&i2c->dev,
			&soc_codec_dev_wm8993, &wm8993_dai, 1);
	if (ret != 0) {
		dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);
		goto err_irq;
	}

	return 0;

err_irq:
	if (i2c->irq)
		free_irq(i2c->irq, wm8993);
err_enable:
	regulator_bulk_disable(ARRAY_SIZE(wm8993->supplies), wm8993->supplies);
	return ret;
}
Beispiel #7
0
/*
 * Instantiate the generic non-control parts of the device.
 */
static int wm8994_device_init(struct wm8994 *wm8994, int irq)
{
	struct wm8994_pdata *pdata;
	struct regmap_config *regmap_config;
	const struct reg_default *regmap_patch = NULL;
	const char *devname;
	int ret, i, patch_regs = 0;
	int pulls = 0;

	if (dev_get_platdata(wm8994->dev)) {
		pdata = dev_get_platdata(wm8994->dev);
		wm8994->pdata = *pdata;
	}
	pdata = &wm8994->pdata;

	ret = wm8994_set_pdata_from_of(wm8994);
	if (ret != 0)
		return ret;

	dev_set_drvdata(wm8994->dev, wm8994);

	/* Add the on-chip regulators first for bootstrapping */
	ret = mfd_add_devices(wm8994->dev, -1,
			      wm8994_regulator_devs,
			      ARRAY_SIZE(wm8994_regulator_devs),
			      NULL, 0, NULL);
	if (ret != 0) {
		dev_err(wm8994->dev, "Failed to add children: %d\n", ret);
		goto err;
	}

	switch (wm8994->type) {
	case WM1811:
		wm8994->num_supplies = ARRAY_SIZE(wm1811_main_supplies);
		break;
	case WM8994:
		wm8994->num_supplies = ARRAY_SIZE(wm8994_main_supplies);
		break;
	case WM8958:
		wm8994->num_supplies = ARRAY_SIZE(wm8958_main_supplies);
		break;
	default:
		BUG();
		goto err;
	}

	wm8994->supplies = devm_kzalloc(wm8994->dev,
					sizeof(struct regulator_bulk_data) *
					wm8994->num_supplies, GFP_KERNEL);
	if (!wm8994->supplies) {
		ret = -ENOMEM;
		goto err;
	}

	switch (wm8994->type) {
	case WM1811:
		for (i = 0; i < ARRAY_SIZE(wm1811_main_supplies); i++)
			wm8994->supplies[i].supply = wm1811_main_supplies[i];
		break;
	case WM8994:
		for (i = 0; i < ARRAY_SIZE(wm8994_main_supplies); i++)
			wm8994->supplies[i].supply = wm8994_main_supplies[i];
		break;
	case WM8958:
		for (i = 0; i < ARRAY_SIZE(wm8958_main_supplies); i++)
			wm8994->supplies[i].supply = wm8958_main_supplies[i];
		break;
	default:
		BUG();
		goto err;
	}
		
	ret = devm_regulator_bulk_get(wm8994->dev, wm8994->num_supplies,
				 wm8994->supplies);
	if (ret != 0) {
		dev_err(wm8994->dev, "Failed to get supplies: %d\n", ret);
		goto err;
	}

	ret = regulator_bulk_enable(wm8994->num_supplies,
				    wm8994->supplies);
	if (ret != 0) {
		dev_err(wm8994->dev, "Failed to enable supplies: %d\n", ret);
		goto err;
	}

	ret = wm8994_reg_read(wm8994, WM8994_SOFTWARE_RESET);
	if (ret < 0) {
		dev_err(wm8994->dev, "Failed to read ID register\n");
		goto err_enable;
	}
	switch (ret) {
	case 0x1811:
		devname = "WM1811";
		if (wm8994->type != WM1811)
			dev_warn(wm8994->dev, "Device registered as type %d\n",
				 wm8994->type);
		wm8994->type = WM1811;
		break;
	case 0x8994:
		devname = "WM8994";
		if (wm8994->type != WM8994)
			dev_warn(wm8994->dev, "Device registered as type %d\n",
				 wm8994->type);
		wm8994->type = WM8994;
		break;
	case 0x8958:
		devname = "WM8958";
		if (wm8994->type != WM8958)
			dev_warn(wm8994->dev, "Device registered as type %d\n",
				 wm8994->type);
		wm8994->type = WM8958;
		break;
	default:
		dev_err(wm8994->dev, "Device is not a WM8994, ID is %x\n",
			ret);
		ret = -EINVAL;
		goto err_enable;
	}

	ret = wm8994_reg_read(wm8994, WM8994_CHIP_REVISION);
	if (ret < 0) {
		dev_err(wm8994->dev, "Failed to read revision register: %d\n",
			ret);
		goto err_enable;
	}
	wm8994->revision = ret & WM8994_CHIP_REV_MASK;
	wm8994->cust_id = (ret & WM8994_CUST_ID_MASK) >> WM8994_CUST_ID_SHIFT;

	switch (wm8994->type) {
	case WM8994:
		switch (wm8994->revision) {
		case 0:
		case 1:
			dev_warn(wm8994->dev,
				 "revision %c not fully supported\n",
				 'A' + wm8994->revision);
			break;
		case 2:
		case 3:
		default:
			regmap_patch = wm8994_revc_patch;
			patch_regs = ARRAY_SIZE(wm8994_revc_patch);
			break;
		}
		break;

	case WM8958:
		switch (wm8994->revision) {
		case 0:
			regmap_patch = wm8958_reva_patch;
			patch_regs = ARRAY_SIZE(wm8958_reva_patch);
			break;
		default:
			break;
		}
		break;

	case WM1811:
		/* Revision C did not change the relevant layer */
		if (wm8994->revision > 1)
			wm8994->revision++;

		regmap_patch = wm1811_reva_patch;
		patch_regs = ARRAY_SIZE(wm1811_reva_patch);
		break;

	default:
		break;
	}

	dev_info(wm8994->dev, "%s revision %c CUST_ID %02x\n", devname,
		 'A' + wm8994->revision, wm8994->cust_id);

	switch (wm8994->type) {
	case WM1811:
		regmap_config = &wm1811_regmap_config;
		break;
	case WM8994:
		regmap_config = &wm8994_regmap_config;
		break;
	case WM8958:
		regmap_config = &wm8958_regmap_config;
		break;
	default:
		dev_err(wm8994->dev, "Unknown device type %d\n", wm8994->type);
		return -EINVAL;
	}

	ret = regmap_reinit_cache(wm8994->regmap, regmap_config);
	if (ret != 0) {
		dev_err(wm8994->dev, "Failed to reinit register cache: %d\n",
			ret);
		return ret;
	}

	/* Explicitly put the device into reset in case regulators
	 * don't get disabled in order to ensure we know the device
	 * state.
	 */
	ret = wm8994_reg_write(wm8994, WM8994_SOFTWARE_RESET,
			       wm8994_reg_read(wm8994, WM8994_SOFTWARE_RESET));
	if (ret != 0) {
		dev_err(wm8994->dev, "Failed to reset device: %d\n", ret);
		return ret;
	}

	if (regmap_patch) {
		ret = regmap_register_patch(wm8994->regmap, regmap_patch,
					    patch_regs);
		if (ret != 0) {
			dev_err(wm8994->dev, "Failed to register patch: %d\n",
				ret);
			goto err;
		}
	}

	wm8994->irq_base = pdata->irq_base;
	wm8994->gpio_base = pdata->gpio_base;

	/* GPIO configuration is only applied if it's non-zero */
	for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
		if (pdata->gpio_defaults[i]) {
			wm8994_set_bits(wm8994, WM8994_GPIO_1 + i,
					0xffff, pdata->gpio_defaults[i]);
		}
	}

	wm8994->ldo_ena_always_driven = pdata->ldo_ena_always_driven;

	if (pdata->spkmode_pu)
		pulls |= WM8994_SPKMODE_PU;

	/* Disable unneeded pulls */
	wm8994_set_bits(wm8994, WM8994_PULL_CONTROL_2,
			WM8994_LDO1ENA_PD | WM8994_LDO2ENA_PD |
			WM8994_SPKMODE_PU | WM8994_CSNADDR_PD,
			pulls);

	/* In some system designs where the regulators are not in use,
	 * we can achieve a small reduction in leakage currents by
	 * floating LDO outputs.  This bit makes no difference if the
	 * LDOs are enabled, it only affects cases where the LDOs were
	 * in operation and are then disabled.
	 */
	for (i = 0; i < WM8994_NUM_LDO_REGS; i++) {
		if (wm8994_ldo_in_use(pdata, i))
			wm8994_set_bits(wm8994, WM8994_LDO_1 + i,
					WM8994_LDO1_DISCH, WM8994_LDO1_DISCH);
		else
			wm8994_set_bits(wm8994, WM8994_LDO_1 + i,
					WM8994_LDO1_DISCH, 0);
	}

	wm8994_irq_init(wm8994);

	ret = mfd_add_devices(wm8994->dev, -1,
			      wm8994_devs, ARRAY_SIZE(wm8994_devs),
			      NULL, 0, NULL);
	if (ret != 0) {
		dev_err(wm8994->dev, "Failed to add children: %d\n", ret);
		goto err_irq;
	}

	pm_runtime_enable(wm8994->dev);
	pm_runtime_idle(wm8994->dev);

	return 0;

err_irq:
	wm8994_irq_exit(wm8994);
err_enable:
	regulator_bulk_disable(wm8994->num_supplies,
			       wm8994->supplies);
err:
	mfd_remove_devices(wm8994->dev);
	return ret;
}
Beispiel #8
0
static int cs35l32_i2c_probe(struct i2c_client *i2c_client,
				       const struct i2c_device_id *id) {
	struct cs35l32_private *cs35l32;
	struct device_node *np = i2c_client->dev.of_node;
	u32 val32;
	int ret;
	unsigned int devid = 0;
	unsigned int reg;
	
	
	cs35l32 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs35l32_private),
			       GFP_KERNEL);
	if (!cs35l32) {
		dev_err(&i2c_client->dev, "could not allocate codec\n");
		return -ENOMEM;
	}

	i2c_set_clientdata(i2c_client, cs35l32);

	cs35l32->regmap = devm_regmap_init_i2c(i2c_client, &cs35l32_regmap);
	if (IS_ERR(cs35l32->regmap)) {
		ret = PTR_ERR(cs35l32->regmap);
		dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret);
		return ret;
	}

	if (of_property_read_u32(np, "cs35l32,boost-mng", &val32) >= 0)
		cs35l32->pdata.boost_mng = val32;
	
	if (of_property_read_u32(np, "cs35l32,sdout-datacfg", &val32) >= 0)
		cs35l32->pdata.sdout_datacfg = val32;
		
	if (of_property_read_u32(np, "cs35l32,sdout-share", &val32) >= 0)
		cs35l32->pdata.sdout_share = val32;

	cs35l32->pdata.gpio_nreset = of_get_named_gpio_flags(np,
								"cs35l32,gpio-nreset", 0, NULL);

	ret = gpio_request(cs35l32->pdata.gpio_nreset, "cs35l32 reset");
	if (ret < 0) {
		dev_err(&i2c_client->dev,
			 "failed to request the gpio %d\n",
				cs35l32->pdata.gpio_nreset);
		return ret;
	}
	/*bring the chip out of reset*/
	gpio_direction_output(cs35l32->pdata.gpio_nreset, 0);
	msleep(20);
	gpio_set_value_cansleep(cs35l32->pdata.gpio_nreset, 1);
	msleep(20);

	ret = regmap_register_patch(cs35l32->regmap, cs35l32_monitor_patch,
				    ARRAY_SIZE(cs35l32_monitor_patch));
	if (ret < 0) {
		dev_err(&i2c_client->dev, "failed to register regmap(try again : 0x40)\n");
		i2c_client->addr = 0x40;
		ret = regmap_register_patch(cs35l32->regmap, cs35l32_monitor_patch,
				    ARRAY_SIZE(cs35l32_monitor_patch));
		if (ret < 0)
			dev_err(&i2c_client->dev, "failed to register regmap retry again\n");
	}

	/* initialize codec */
	ret = regmap_read(cs35l32->regmap, CS35L32_DEVID_AB, &reg);
	devid = (reg & 0xFF) << 12;

	ret = regmap_read(cs35l32->regmap, CS35L32_DEVID_CD, &reg);
	devid |= (reg & 0xFF) << 4;

	ret = regmap_read(cs35l32->regmap, CS35L32_DEVID_E, &reg);
	devid |= (reg & 0xF0) >> 4;

	if ((devid != CS35L32_CHIP_ID) && (devid != CS35L32_CHIP_ID_VZW)) {
		ret = -ENODEV;
		dev_err(&i2c_client->dev,
			"CS35L32 Device ID (%X). Expected %X\n",
			devid, CS35L32_CHIP_ID);
		return ret;
	}

	ret = regmap_read(cs35l32->regmap, CS35L32_REV_ID, &reg);
	if (ret < 0) {
		dev_err(&i2c_client->dev, "Get Revision ID failed\n");
		return ret;;
	}

	dev_info(&i2c_client->dev,
		 "Cirrus Logic CS35L32, Revision: %02X\n", reg & 0xFF);

	regcache_cache_only(cs35l32->regmap, false);

	ret =  snd_soc_register_codec(&i2c_client->dev,
			&soc_codec_dev_cs35l32, cs35l32_dai, ARRAY_SIZE(cs35l32_dai));
	
	if (ret < 0)
		return ret;
	return 0;
}
Beispiel #9
0
static int cs42l52_i2c_probe(struct i2c_client *i2c_client,
			     const struct i2c_device_id *id)
{
	struct cs42l52_private *cs42l52;
	struct cs42l52_platform_data *pdata = dev_get_platdata(&i2c_client->dev);
	int ret;
	unsigned int devid = 0;
	unsigned int reg;
	u32 val32;

	cs42l52 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs42l52_private),
			       GFP_KERNEL);
	if (cs42l52 == NULL)
		return -ENOMEM;
	cs42l52->dev = &i2c_client->dev;

	cs42l52->regmap = devm_regmap_init_i2c(i2c_client, &cs42l52_regmap);
	if (IS_ERR(cs42l52->regmap)) {
		ret = PTR_ERR(cs42l52->regmap);
		dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret);
		return ret;
	}
	if (pdata) {
		cs42l52->pdata = *pdata;
	} else {
		pdata = devm_kzalloc(&i2c_client->dev,
				     sizeof(struct cs42l52_platform_data),
				GFP_KERNEL);
		if (!pdata) {
			dev_err(&i2c_client->dev, "could not allocate pdata\n");
			return -ENOMEM;
		}
		if (i2c_client->dev.of_node) {
			if (of_property_read_bool(i2c_client->dev.of_node,
				"cirrus,mica-differential-cfg"))
				pdata->mica_diff_cfg = true;

			if (of_property_read_bool(i2c_client->dev.of_node,
				"cirrus,micb-differential-cfg"))
				pdata->micb_diff_cfg = true;

			if (of_property_read_u32(i2c_client->dev.of_node,
				"cirrus,micbias-lvl", &val32) >= 0)
				pdata->micbias_lvl = val32;

			if (of_property_read_u32(i2c_client->dev.of_node,
				"cirrus,chgfreq-divisor", &val32) >= 0)
				pdata->chgfreq = val32;

			pdata->reset_gpio =
				of_get_named_gpio(i2c_client->dev.of_node,
						"cirrus,reset-gpio", 0);
		}
		cs42l52->pdata = *pdata;
	}

	if (cs42l52->pdata.reset_gpio) {
		ret = devm_gpio_request_one(&i2c_client->dev,
					    cs42l52->pdata.reset_gpio,
					    GPIOF_OUT_INIT_HIGH,
					    "CS42L52 /RST");
		if (ret < 0) {
			dev_err(&i2c_client->dev, "Failed to request /RST %d: %d\n",
				cs42l52->pdata.reset_gpio, ret);
			return ret;
		}
		gpio_set_value_cansleep(cs42l52->pdata.reset_gpio, 0);
		gpio_set_value_cansleep(cs42l52->pdata.reset_gpio, 1);
	}

	i2c_set_clientdata(i2c_client, cs42l52);

	ret = regmap_register_patch(cs42l52->regmap, cs42l52_threshold_patch,
				    ARRAY_SIZE(cs42l52_threshold_patch));
	if (ret != 0)
		dev_warn(cs42l52->dev, "Failed to apply regmap patch: %d\n",
			 ret);

	ret = regmap_read(cs42l52->regmap, CS42L52_CHIP, &reg);
	devid = reg & CS42L52_CHIP_ID_MASK;
	if (devid != CS42L52_CHIP_ID) {
		ret = -ENODEV;
		dev_err(&i2c_client->dev,
			"CS42L52 Device ID (%X). Expected %X\n",
			devid, CS42L52_CHIP_ID);
		return ret;
	}

	dev_info(&i2c_client->dev, "Cirrus Logic CS42L52, Revision: %02X\n",
		 reg & CS42L52_CHIP_REV_MASK);

	/* Set Platform Data */
	if (cs42l52->pdata.mica_diff_cfg)
		regmap_update_bits(cs42l52->regmap, CS42L52_MICA_CTL,
				   CS42L52_MIC_CTL_TYPE_MASK,
				cs42l52->pdata.mica_diff_cfg <<
				CS42L52_MIC_CTL_TYPE_SHIFT);

	if (cs42l52->pdata.micb_diff_cfg)
		regmap_update_bits(cs42l52->regmap, CS42L52_MICB_CTL,
				   CS42L52_MIC_CTL_TYPE_MASK,
				cs42l52->pdata.micb_diff_cfg <<
				CS42L52_MIC_CTL_TYPE_SHIFT);

	if (cs42l52->pdata.chgfreq)
		regmap_update_bits(cs42l52->regmap, CS42L52_CHARGE_PUMP,
				   CS42L52_CHARGE_PUMP_MASK,
				cs42l52->pdata.chgfreq <<
				CS42L52_CHARGE_PUMP_SHIFT);

	if (cs42l52->pdata.micbias_lvl)
		regmap_update_bits(cs42l52->regmap, CS42L52_IFACE_CTL2,
				   CS42L52_IFACE_CTL2_BIAS_LVL,
				cs42l52->pdata.micbias_lvl);

	ret =  snd_soc_register_codec(&i2c_client->dev,
			&soc_codec_dev_cs42l52, &cs42l52_dai, 1);
	if (ret < 0)
		return ret;
	return 0;
}
Beispiel #10
0
static int cs35l33_i2c_probe(struct i2c_client *i2c_client,
				       const struct i2c_device_id *id)
{
	struct cs35l33_private *cs35l33;
	struct cs35l33_pdata *pdata = dev_get_platdata(&i2c_client->dev);
	int ret, devid, i;
	unsigned int reg;

	cs35l33 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs35l33_private),
			       GFP_KERNEL);
	if (!cs35l33)
		return -ENOMEM;

	i2c_set_clientdata(i2c_client, cs35l33);
	cs35l33->regmap = devm_regmap_init_i2c(i2c_client, &cs35l33_regmap);
	if (IS_ERR(cs35l33->regmap)) {
		ret = PTR_ERR(cs35l33->regmap);
		dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret);
		return ret;
	}

	regcache_cache_only(cs35l33->regmap, true);

	for (i = 0; i < ARRAY_SIZE(cs35l33_core_supplies); i++)
		cs35l33->core_supplies[i].supply
			= cs35l33_core_supplies[i];
	cs35l33->num_core_supplies = ARRAY_SIZE(cs35l33_core_supplies);

	ret = devm_regulator_bulk_get(&i2c_client->dev,
			cs35l33->num_core_supplies,
			cs35l33->core_supplies);
	if (ret != 0) {
		dev_err(&i2c_client->dev,
			"Failed to request core supplies: %d\n",
			ret);
		return ret;
	}

	if (pdata) {
		cs35l33->pdata = *pdata;
	} else {
		cs35l33_of_get_pdata(&i2c_client->dev, cs35l33);
		pdata = &cs35l33->pdata;
	}

	ret = devm_request_threaded_irq(&i2c_client->dev, i2c_client->irq, NULL,
			cs35l33_irq_thread, IRQF_ONESHOT | IRQF_TRIGGER_LOW,
			"cs35l33", cs35l33);
	if (ret != 0)
		dev_warn(&i2c_client->dev, "Failed to request IRQ: %d\n", ret);

	/* We could issue !RST or skip it based on AMP topology */
	cs35l33->reset_gpio = devm_gpiod_get_optional(&i2c_client->dev,
			"reset-gpios", GPIOD_OUT_HIGH);
	if (IS_ERR(cs35l33->reset_gpio)) {
		dev_err(&i2c_client->dev, "%s ERROR: Can't get reset GPIO\n",
			__func__);
		return PTR_ERR(cs35l33->reset_gpio);
	}

	ret = regulator_bulk_enable(cs35l33->num_core_supplies,
					cs35l33->core_supplies);
	if (ret != 0) {
		dev_err(&i2c_client->dev,
			"Failed to enable core supplies: %d\n",
			ret);
		return ret;
	}

	gpiod_set_value_cansleep(cs35l33->reset_gpio, 1);

	msleep(CS35L33_BOOT_DELAY);
	regcache_cache_only(cs35l33->regmap, false);

	/* initialize codec */
	ret = regmap_read(cs35l33->regmap, CS35L33_DEVID_AB, &reg);
	devid = (reg & 0xFF) << 12;
	ret = regmap_read(cs35l33->regmap, CS35L33_DEVID_CD, &reg);
	devid |= (reg & 0xFF) << 4;
	ret = regmap_read(cs35l33->regmap, CS35L33_DEVID_E, &reg);
	devid |= (reg & 0xF0) >> 4;

	if (devid != CS35L33_CHIP_ID) {
		dev_err(&i2c_client->dev,
			"CS35L33 Device ID (%X). Expected ID %X\n",
			devid, CS35L33_CHIP_ID);
		goto err_enable;
	}

	ret = regmap_read(cs35l33->regmap, CS35L33_REV_ID, &reg);
	if (ret < 0) {
		dev_err(&i2c_client->dev, "Get Revision ID failed\n");
		goto err_enable;
	}

	dev_info(&i2c_client->dev,
		 "Cirrus Logic CS35L33, Revision: %02X\n", reg & 0xFF);

	ret = regmap_register_patch(cs35l33->regmap,
			cs35l33_patch, ARRAY_SIZE(cs35l33_patch));
	if (ret < 0) {
		dev_err(&i2c_client->dev,
			"Error in applying regmap patch: %d\n", ret);
		goto err_enable;
	}

	/* disable mclk and tdm */
	regmap_update_bits(cs35l33->regmap, CS35L33_CLK_CTL,
		CS35L33_MCLKDIS | CS35L33_SDOUT_3ST_TDM,
		CS35L33_MCLKDIS | CS35L33_SDOUT_3ST_TDM);

	pm_runtime_set_autosuspend_delay(&i2c_client->dev, 100);
	pm_runtime_use_autosuspend(&i2c_client->dev);
	pm_runtime_set_active(&i2c_client->dev);
	pm_runtime_enable(&i2c_client->dev);

	ret = devm_snd_soc_register_component(&i2c_client->dev,
			&soc_component_dev_cs35l33, &cs35l33_dai, 1);
	if (ret < 0) {
		dev_err(&i2c_client->dev, "%s: Register component failed\n",
			__func__);
		goto err_enable;
	}

	return 0;

err_enable:
	regulator_bulk_disable(cs35l33->num_core_supplies,
			       cs35l33->core_supplies);

	return ret;
}
Beispiel #11
0
static int twl6040_probe(struct i2c_client *client,
			 const struct i2c_device_id *id)
{
	struct device_node *node = client->dev.of_node;
	struct twl6040 *twl6040;
	struct mfd_cell *cell = NULL;
	int irq, ret, children = 0;

	if (!node) {
		dev_err(&client->dev, "of node is missing\n");
		return -EINVAL;
	}

	/* In order to operate correctly we need valid interrupt config */
	if (!client->irq) {
		dev_err(&client->dev, "Invalid IRQ configuration\n");
		return -EINVAL;
	}

	twl6040 = devm_kzalloc(&client->dev, sizeof(struct twl6040),
			       GFP_KERNEL);
	if (!twl6040)
		return -ENOMEM;

	twl6040->regmap = devm_regmap_init_i2c(client, &twl6040_regmap_config);
	if (IS_ERR(twl6040->regmap))
		return PTR_ERR(twl6040->regmap);

	i2c_set_clientdata(client, twl6040);

	twl6040->clk32k = devm_clk_get(&client->dev, "clk32k");
	if (IS_ERR(twl6040->clk32k)) {
		if (PTR_ERR(twl6040->clk32k) == -EPROBE_DEFER)
			return -EPROBE_DEFER;
		dev_dbg(&client->dev, "clk32k is not handled\n");
		twl6040->clk32k = NULL;
	}

	twl6040->mclk = devm_clk_get(&client->dev, "mclk");
	if (IS_ERR(twl6040->mclk)) {
		if (PTR_ERR(twl6040->mclk) == -EPROBE_DEFER)
			return -EPROBE_DEFER;
		dev_dbg(&client->dev, "mclk is not handled\n");
		twl6040->mclk = NULL;
	}

	twl6040->supplies[0].supply = "vio";
	twl6040->supplies[1].supply = "v2v1";
	ret = devm_regulator_bulk_get(&client->dev, TWL6040_NUM_SUPPLIES,
				      twl6040->supplies);
	if (ret != 0) {
		dev_err(&client->dev, "Failed to get supplies: %d\n", ret);
		return ret;
	}

	ret = regulator_bulk_enable(TWL6040_NUM_SUPPLIES, twl6040->supplies);
	if (ret != 0) {
		dev_err(&client->dev, "Failed to enable supplies: %d\n", ret);
		return ret;
	}

	twl6040->dev = &client->dev;
	twl6040->irq = client->irq;

	mutex_init(&twl6040->mutex);
	init_completion(&twl6040->ready);

	regmap_register_patch(twl6040->regmap, twl6040_patch,
			      ARRAY_SIZE(twl6040_patch));

	twl6040->rev = twl6040_reg_read(twl6040, TWL6040_REG_ASICREV);
	if (twl6040->rev < 0) {
		dev_err(&client->dev, "Failed to read revision register: %d\n",
			twl6040->rev);
		ret = twl6040->rev;
		goto gpio_err;
	}

	/* ERRATA: Automatic power-up is not possible in ES1.0 */
	if (twl6040_get_revid(twl6040) > TWL6040_REV_ES1_0)
		twl6040->audpwron = of_get_named_gpio(node,
						      "ti,audpwron-gpio", 0);
	else
		twl6040->audpwron = -EINVAL;

	if (gpio_is_valid(twl6040->audpwron)) {
		ret = devm_gpio_request_one(&client->dev, twl6040->audpwron,
					    GPIOF_OUT_INIT_LOW, "audpwron");
		if (ret)
			goto gpio_err;

		/* Clear any pending interrupt */
		twl6040_reg_read(twl6040, TWL6040_REG_INTID);
	}

	ret = regmap_add_irq_chip(twl6040->regmap, twl6040->irq, IRQF_ONESHOT,
				  0, &twl6040_irq_chip, &twl6040->irq_data);
	if (ret < 0)
		goto gpio_err;

	twl6040->irq_ready = regmap_irq_get_virq(twl6040->irq_data,
						 TWL6040_IRQ_READY);
	twl6040->irq_th = regmap_irq_get_virq(twl6040->irq_data,
					      TWL6040_IRQ_TH);

	ret = devm_request_threaded_irq(twl6040->dev, twl6040->irq_ready, NULL,
					twl6040_readyint_handler, IRQF_ONESHOT,
					"twl6040_irq_ready", twl6040);
	if (ret) {
		dev_err(twl6040->dev, "READY IRQ request failed: %d\n", ret);
		goto readyirq_err;
	}

	ret = devm_request_threaded_irq(twl6040->dev, twl6040->irq_th, NULL,
					twl6040_thint_handler, IRQF_ONESHOT,
					"twl6040_irq_th", twl6040);
	if (ret) {
		dev_err(twl6040->dev, "Thermal IRQ request failed: %d\n", ret);
		goto readyirq_err;
	}

	/*
	 * The main functionality of twl6040 to provide audio on OMAP4+ systems.
	 * We can add the ASoC codec child whenever this driver has been loaded.
	 */
	irq = regmap_irq_get_virq(twl6040->irq_data, TWL6040_IRQ_PLUG);
	cell = &twl6040->cells[children];
	cell->name = "twl6040-codec";
	twl6040_codec_rsrc[0].start = irq;
	twl6040_codec_rsrc[0].end = irq;
	cell->resources = twl6040_codec_rsrc;
	cell->num_resources = ARRAY_SIZE(twl6040_codec_rsrc);
	children++;

	/* Vibra input driver support */
	if (twl6040_has_vibra(node)) {
		irq = regmap_irq_get_virq(twl6040->irq_data, TWL6040_IRQ_VIB);

		cell = &twl6040->cells[children];
		cell->name = "twl6040-vibra";
		twl6040_vibra_rsrc[0].start = irq;
		twl6040_vibra_rsrc[0].end = irq;
		cell->resources = twl6040_vibra_rsrc;
		cell->num_resources = ARRAY_SIZE(twl6040_vibra_rsrc);
		children++;
	}

	/* GPO support */
	cell = &twl6040->cells[children];
	cell->name = "twl6040-gpo";
	children++;

	/* PDM clock support  */
	cell = &twl6040->cells[children];
	cell->name = "twl6040-pdmclk";
	children++;

	/* The chip is powered down so mark regmap to cache only and dirty */
	regcache_cache_only(twl6040->regmap, true);
	regcache_mark_dirty(twl6040->regmap);

	ret = mfd_add_devices(&client->dev, -1, twl6040->cells, children,
			      NULL, 0, NULL);
	if (ret)
		goto readyirq_err;

	return 0;

readyirq_err:
	regmap_del_irq_chip(twl6040->irq, twl6040->irq_data);
gpio_err:
	regulator_bulk_disable(TWL6040_NUM_SUPPLIES, twl6040->supplies);
	return ret;
}
static __devinit int wm8994_device_init(struct wm8994 *wm8994, int irq)
{
	struct wm8994_pdata *pdata = wm8994->dev->platform_data;
	struct regmap_config *regmap_config;
	const struct reg_default *regmap_patch = NULL;
	const char *devname;
	int ret, i, patch_regs;
	int pulls = 0;

	dev_set_drvdata(wm8994->dev, wm8994);

	
	ret = mfd_add_devices(wm8994->dev, -1,
			      wm8994_regulator_devs,
			      ARRAY_SIZE(wm8994_regulator_devs),
			      NULL, 0);
	if (ret != 0) {
		dev_err(wm8994->dev, "Failed to add children: %d\n", ret);
		goto err;
	}

	switch (wm8994->type) {
	case WM1811:
		wm8994->num_supplies = ARRAY_SIZE(wm1811_main_supplies);
		break;
	case WM8994:
		wm8994->num_supplies = ARRAY_SIZE(wm8994_main_supplies);
		break;
	case WM8958:
		wm8994->num_supplies = ARRAY_SIZE(wm8958_main_supplies);
		break;
	default:
		BUG();
		goto err;
	}

	wm8994->supplies = devm_kzalloc(wm8994->dev,
					sizeof(struct regulator_bulk_data) *
					wm8994->num_supplies, GFP_KERNEL);
	if (!wm8994->supplies) {
		ret = -ENOMEM;
		goto err;
	}

	switch (wm8994->type) {
	case WM1811:
		for (i = 0; i < ARRAY_SIZE(wm1811_main_supplies); i++)
			wm8994->supplies[i].supply = wm1811_main_supplies[i];
		break;
	case WM8994:
		for (i = 0; i < ARRAY_SIZE(wm8994_main_supplies); i++)
			wm8994->supplies[i].supply = wm8994_main_supplies[i];
		break;
	case WM8958:
		for (i = 0; i < ARRAY_SIZE(wm8958_main_supplies); i++)
			wm8994->supplies[i].supply = wm8958_main_supplies[i];
		break;
	default:
		BUG();
		goto err;
	}
		
	ret = regulator_bulk_get(wm8994->dev, wm8994->num_supplies,
				 wm8994->supplies);
	if (ret != 0) {
		dev_err(wm8994->dev, "Failed to get supplies: %d\n", ret);
		goto err;
	}

	ret = regulator_bulk_enable(wm8994->num_supplies,
				    wm8994->supplies);
	if (ret != 0) {
		dev_err(wm8994->dev, "Failed to enable supplies: %d\n", ret);
		goto err_get;
	}

	ret = wm8994_reg_read(wm8994, WM8994_SOFTWARE_RESET);
	if (ret < 0) {
		dev_err(wm8994->dev, "Failed to read ID register\n");
		goto err_enable;
	}
	switch (ret) {
	case 0x1811:
		devname = "WM1811";
		if (wm8994->type != WM1811)
			dev_warn(wm8994->dev, "Device registered as type %d\n",
				 wm8994->type);
		wm8994->type = WM1811;
		break;
	case 0x8994:
		devname = "WM8994";
		if (wm8994->type != WM8994)
			dev_warn(wm8994->dev, "Device registered as type %d\n",
				 wm8994->type);
		wm8994->type = WM8994;
		break;
	case 0x8958:
		devname = "WM8958";
		if (wm8994->type != WM8958)
			dev_warn(wm8994->dev, "Device registered as type %d\n",
				 wm8994->type);
		wm8994->type = WM8958;
		break;
	default:
		dev_err(wm8994->dev, "Device is not a WM8994, ID is %x\n",
			ret);
		ret = -EINVAL;
		goto err_enable;
	}

	ret = wm8994_reg_read(wm8994, WM8994_CHIP_REVISION);
	if (ret < 0) {
		dev_err(wm8994->dev, "Failed to read revision register: %d\n",
			ret);
		goto err_enable;
	}
	wm8994->revision = ret;

	switch (wm8994->type) {
	case WM8994:
		switch (wm8994->revision) {
		case 0:
		case 1:
			dev_warn(wm8994->dev,
				 "revision %c not fully supported\n",
				 'A' + wm8994->revision);
			break;
		case 2:
		case 3:
			regmap_patch = wm8994_revc_patch;
			patch_regs = ARRAY_SIZE(wm8994_revc_patch);
			break;
		default:
			break;
		}
		break;

	case WM8958:
		switch (wm8994->revision) {
		case 0:
			regmap_patch = wm8958_reva_patch;
			patch_regs = ARRAY_SIZE(wm8958_reva_patch);
			break;
		default:
			break;
		}
		break;

	case WM1811:
		
		if (wm8994->revision > 1)
			wm8994->revision++;
		switch (wm8994->revision) {
		case 0:
		case 1:
		case 2:
		case 3:
		case 4:
			regmap_patch = wm1811_reva_patch;
			patch_regs = ARRAY_SIZE(wm1811_reva_patch);
			break;
		default:
			break;
		}
		break;

	default:
		break;
	}

	dev_info(wm8994->dev, "%s revision %c\n", devname,
		 'A' + wm8994->revision);

	switch (wm8994->type) {
	case WM1811:
		regmap_config = &wm1811_regmap_config;
		break;
	case WM8994:
		regmap_config = &wm8994_regmap_config;
		break;
	case WM8958:
		regmap_config = &wm8958_regmap_config;
		break;
	default:
		dev_err(wm8994->dev, "Unknown device type %d\n", wm8994->type);
		return -EINVAL;
	}

	ret = regmap_reinit_cache(wm8994->regmap, regmap_config);
	if (ret != 0) {
		dev_err(wm8994->dev, "Failed to reinit register cache: %d\n",
			ret);
		return ret;
	}

	if (regmap_patch) {
		ret = regmap_register_patch(wm8994->regmap, regmap_patch,
					    patch_regs);
		if (ret != 0) {
			dev_err(wm8994->dev, "Failed to register patch: %d\n",
				ret);
			goto err;
		}
	}

	if (pdata) {
		wm8994->irq_base = pdata->irq_base;
		wm8994->gpio_base = pdata->gpio_base;

		
		for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
			if (pdata->gpio_defaults[i]) {
				wm8994_set_bits(wm8994, WM8994_GPIO_1 + i,
						0xffff,
						pdata->gpio_defaults[i]);
			}
		}

		wm8994->ldo_ena_always_driven = pdata->ldo_ena_always_driven;

		if (pdata->spkmode_pu)
			pulls |= WM8994_SPKMODE_PU;
	}

	
	wm8994_set_bits(wm8994, WM8994_PULL_CONTROL_2,
			WM8994_LDO1ENA_PD | WM8994_LDO2ENA_PD |
			WM8994_SPKMODE_PU | WM8994_CSNADDR_PD,
			pulls);

	for (i = 0; i < WM8994_NUM_LDO_REGS; i++) {
		if (wm8994_ldo_in_use(pdata, i))
			wm8994_set_bits(wm8994, WM8994_LDO_1 + i,
					WM8994_LDO1_DISCH, WM8994_LDO1_DISCH);
		else
			wm8994_set_bits(wm8994, WM8994_LDO_1 + i,
					WM8994_LDO1_DISCH, 0);
	}

	wm8994_irq_init(wm8994);

	ret = mfd_add_devices(wm8994->dev, -1,
			      wm8994_devs, ARRAY_SIZE(wm8994_devs),
			      NULL, 0);
	if (ret != 0) {
		dev_err(wm8994->dev, "Failed to add children: %d\n", ret);
		goto err_irq;
	}

	pm_runtime_enable(wm8994->dev);
	pm_runtime_idle(wm8994->dev);

	return 0;

err_irq:
	wm8994_irq_exit(wm8994);
err_enable:
	regulator_bulk_disable(wm8994->num_supplies,
			       wm8994->supplies);
err_get:
	regulator_bulk_free(wm8994->num_supplies, wm8994->supplies);
err:
	mfd_remove_devices(wm8994->dev);
	return ret;
}