int arizona_dev_init(struct arizona *arizona)
{
	struct device *dev = arizona->dev;
	const char *type_name = "Unknown";
	unsigned int reg, val;
	int (*apply_patch)(struct arizona *) = NULL;
	int ret, i;
	char revision_char;

	dev_set_drvdata(arizona->dev, arizona);
	mutex_init(&arizona->clk_lock);
	init_completion(&arizona->gpio_allocated);

	if (dev_get_platdata(arizona->dev))
		memcpy(&arizona->pdata, dev_get_platdata(arizona->dev),
		       sizeof(arizona->pdata));
	else
		arizona_of_get_core_pdata(arizona);

	regcache_cache_only(arizona->regmap, true);

	switch (arizona->type) {
	case WM5102:
	case WM5110:
	case WM8280:
	case WM8997:
		for (i = 0; i < ARRAY_SIZE(wm5102_core_supplies); i++)
			arizona->core_supplies[i].supply
				= wm5102_core_supplies[i];
		arizona->num_core_supplies = ARRAY_SIZE(wm5102_core_supplies);
		break;
	default:
		dev_err(arizona->dev, "Unknown device type %d\n",
			arizona->type);
		return -EINVAL;
	}

	/* Mark DCVDD as external, LDO1 driver will clear if internal */
	arizona->external_dcvdd = true;

	ret = mfd_add_devices(arizona->dev, -1, early_devs,
			      ARRAY_SIZE(early_devs), NULL, 0, NULL);
	if (ret != 0) {
		dev_err(dev, "Failed to add early children: %d\n", ret);
		return ret;
	}

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

	arizona->dcvdd = devm_regulator_get(arizona->dev, "DCVDD");
	if (IS_ERR(arizona->dcvdd)) {
		ret = PTR_ERR(arizona->dcvdd);
		dev_err(dev, "Failed to request DCVDD: %d\n", ret);
		goto err_early;
	}

	if (arizona->pdata.reset) {
		/* Start out with /RESET low to put the chip into reset */
		ret = gpio_request_one(arizona->pdata.reset,
				       GPIOF_DIR_OUT | GPIOF_INIT_LOW,
				       "arizona /RESET");
		if (ret != 0) {
			dev_err(dev, "Failed to request /RESET: %d\n", ret);
			goto err_early;
		}
	}

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

	ret = regulator_enable(arizona->dcvdd);
	if (ret != 0) {
		dev_err(dev, "Failed to enable DCVDD: %d\n", ret);
		goto err_enable;
	}

	switch (arizona->type) {
	case WM5110:
	case WM8280:
		msleep(5);
		break;
	default:
		break;
	}

	if (arizona->pdata.reset) {
		gpio_set_value_cansleep(arizona->pdata.reset, 1);
		msleep(1);
	}

	regcache_cache_only(arizona->regmap, false);

	/* Verify that this is a chip we know about */
	ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, &reg);
	if (ret != 0) {
		dev_err(dev, "Failed to read ID register: %d\n", ret);
		goto err_reset;
	}

	switch (reg) {
	case 0x5102:
	case 0x5110:
	case 0x8997:
		break;
	default:
		dev_err(arizona->dev, "Unknown device ID: %x\n", reg);
		goto err_reset;
	}

	/* If we have a /RESET GPIO we'll already be reset */
	if (!arizona->pdata.reset) {
		regcache_mark_dirty(arizona->regmap);

		ret = arizona_soft_reset(arizona);
		if (ret != 0)
			goto err_reset;

		ret = regcache_sync(arizona->regmap);
		if (ret != 0) {
			dev_err(dev, "Failed to sync device: %d\n", ret);
			goto err_reset;
		}
	}

	/* Ensure device startup is complete */
	switch (arizona->type) {
	case WM5102:
		ret = regmap_read(arizona->regmap, 0x19, &val);
		if (ret != 0)
			dev_err(dev,
				"Failed to check write sequencer state: %d\n",
				ret);
		else if (val & 0x01)
			break;
		/* Fall through */
	default:
		ret = arizona_wait_for_boot(arizona);
		if (ret != 0) {
			dev_err(arizona->dev,
				"Device failed initial boot: %d\n", ret);
			goto err_reset;
		}
		break;
	}

	/* Read the device ID information & do device specific stuff */
	ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, &reg);
	if (ret != 0) {
		dev_err(dev, "Failed to read ID register: %d\n", ret);
		goto err_reset;
	}

	ret = regmap_read(arizona->regmap, ARIZONA_DEVICE_REVISION,
			  &arizona->rev);
	if (ret != 0) {
		dev_err(dev, "Failed to read revision register: %d\n", ret);
		goto err_reset;
	}
	arizona->rev &= ARIZONA_DEVICE_REVISION_MASK;

	switch (reg) {
#ifdef CONFIG_MFD_WM5102
	case 0x5102:
		type_name = "WM5102";
		if (arizona->type != WM5102) {
			dev_err(arizona->dev, "WM5102 registered as %d\n",
				arizona->type);
			arizona->type = WM5102;
		}
		apply_patch = wm5102_patch;
		arizona->rev &= 0x7;
		revision_char = arizona->rev + 'A';
		break;
#endif
#ifdef CONFIG_MFD_FLORIDA
	case 0x5110:
		switch (arizona->type) {
		case WM8280:
			if (arizona->rev >= 0x5) {
				type_name = "WM8281";
				revision_char = arizona->rev + 60;
			} else {
				type_name = "WM8280";
				revision_char = arizona->rev + 61;
			}
			break;

		case WM5110:
			type_name = "WM5110";
			revision_char = arizona->rev + 'A';
			break;

		default:
			dev_err(arizona->dev, "Florida codec registered as %d\n",
				arizona->type);
			arizona->type = WM8280;
			type_name = "Florida";
			revision_char = arizona->rev + 61;
			break;
		}
		apply_patch = florida_patch;
		break;
#endif
#ifdef CONFIG_MFD_WM8997
	case 0x8997:
		type_name = "WM8997";
		revision_char = arizona->rev + 'A';
		if (arizona->type != WM8997) {
			dev_err(arizona->dev, "WM8997 registered as %d\n",
				arizona->type);
			arizona->type = WM8997;
		}
		apply_patch = wm8997_patch;
		break;
#endif
	default:
		dev_err(arizona->dev, "Unknown device ID %x\n", reg);
		goto err_reset;
	}

	dev_info(dev, "%s revision %c\n", type_name, revision_char);

	if (apply_patch) {
		ret = apply_patch(arizona);
		if (ret != 0) {
			dev_err(arizona->dev, "Failed to apply patch: %d\n",
				ret);
			goto err_reset;
		}

		switch (arizona->type) {
		case WM5102:
			ret = arizona_apply_hardware_patch(arizona);
			if (ret != 0) {
				dev_err(arizona->dev,
					"Failed to apply hardware patch: %d\n",
					ret);
				goto err_reset;
			}
			break;
		case WM5110:
		case WM8280:
			ret = arizona_apply_sleep_patch(arizona);
			if (ret != 0) {
				dev_err(arizona->dev,
					"Failed to apply sleep patch: %d\n",
					ret);
				goto err_reset;
			}
			break;
		default:
			break;
		}
	}

	for (i = 0; i < ARRAY_SIZE(arizona->pdata.gpio_defaults); i++) {
		if (!arizona->pdata.gpio_defaults[i])
			continue;

		regmap_write(arizona->regmap, ARIZONA_GPIO1_CTRL + i,
			     arizona->pdata.gpio_defaults[i]);
	}

	pm_runtime_set_autosuspend_delay(arizona->dev, 100);
	pm_runtime_use_autosuspend(arizona->dev);
	pm_runtime_enable(arizona->dev);

	/* Chip default */
	if (!arizona->pdata.clk32k_src)
		arizona->pdata.clk32k_src = ARIZONA_32KZ_MCLK2;

	switch (arizona->pdata.clk32k_src) {
	case ARIZONA_32KZ_MCLK1:
	case ARIZONA_32KZ_MCLK2:
		regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
				   ARIZONA_CLK_32K_SRC_MASK,
				   arizona->pdata.clk32k_src - 1);
		arizona_clk32k_enable(arizona);
		break;
	case ARIZONA_32KZ_NONE:
		regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
				   ARIZONA_CLK_32K_SRC_MASK, 2);
		break;
	default:
		dev_err(arizona->dev, "Invalid 32kHz clock source: %d\n",
			arizona->pdata.clk32k_src);
		ret = -EINVAL;
		goto err_reset;
	}

	for (i = 0; i < ARIZONA_MAX_MICBIAS; i++) {
		if (!arizona->pdata.micbias[i].mV &&
		    !arizona->pdata.micbias[i].bypass)
			continue;

		/* Apply default for bypass mode */
		if (!arizona->pdata.micbias[i].mV)
			arizona->pdata.micbias[i].mV = 2800;

		val = (arizona->pdata.micbias[i].mV - 1500) / 100;

		val <<= ARIZONA_MICB1_LVL_SHIFT;

		if (arizona->pdata.micbias[i].ext_cap)
			val |= ARIZONA_MICB1_EXT_CAP;

		if (arizona->pdata.micbias[i].discharge)
			val |= ARIZONA_MICB1_DISCH;

		if (arizona->pdata.micbias[i].soft_start)
			val |= ARIZONA_MICB1_RATE;

		if (arizona->pdata.micbias[i].bypass)
			val |= ARIZONA_MICB1_BYPASS;

		regmap_update_bits(arizona->regmap,
				   ARIZONA_MIC_BIAS_CTRL_1 + i,
				   ARIZONA_MICB1_LVL_MASK |
				   ARIZONA_MICB1_DISCH |
				   ARIZONA_MICB1_BYPASS |
				   ARIZONA_MICB1_RATE, val);
	}

	for (i = 0; i < ARIZONA_MAX_INPUT; i++) {
		/* Default for both is 0 so noop with defaults */
		val = arizona->pdata.dmic_ref[i]
			<< ARIZONA_IN1_DMIC_SUP_SHIFT;
		val |= arizona->pdata.inmode[i] << ARIZONA_IN1_MODE_SHIFT;

		regmap_update_bits(arizona->regmap,
				   ARIZONA_IN1L_CONTROL + (i * 8),
				   ARIZONA_IN1_DMIC_SUP_MASK |
				   ARIZONA_IN1_MODE_MASK, val);
	}

	for (i = 0; i < ARIZONA_MAX_OUTPUT; i++) {
		/* Default is 0 so noop with defaults */
		if (arizona->pdata.out_mono[i])
			val = ARIZONA_OUT1_MONO;
		else
			val = 0;

		regmap_update_bits(arizona->regmap,
				   ARIZONA_OUTPUT_PATH_CONFIG_1L + (i * 8),
				   ARIZONA_OUT1_MONO, val);
	}

	for (i = 0; i < ARIZONA_MAX_PDM_SPK; i++) {
		if (arizona->pdata.spk_mute[i])
			regmap_update_bits(arizona->regmap,
					   ARIZONA_PDM_SPK1_CTRL_1 + (i * 2),
					   ARIZONA_SPK1_MUTE_ENDIAN_MASK |
					   ARIZONA_SPK1_MUTE_SEQ1_MASK,
					   arizona->pdata.spk_mute[i]);

		if (arizona->pdata.spk_fmt[i])
			regmap_update_bits(arizona->regmap,
					   ARIZONA_PDM_SPK1_CTRL_2 + (i * 2),
					   ARIZONA_SPK1_FMT_MASK,
					   arizona->pdata.spk_fmt[i]);
	}

	/* Set up for interrupts */
	ret = arizona_irq_init(arizona);
	if (ret != 0)
		goto err_reset;

	arizona_request_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, "CLKGEN error",
			    arizona_clkgen_err, arizona);
	arizona_request_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, "Overclocked",
			    arizona_overclocked, arizona);
	arizona_request_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, "Underclocked",
			    arizona_underclocked, arizona);

	switch (arizona->type) {
	case WM5102:
		ret = mfd_add_devices(arizona->dev, -1, wm5102_devs,
				      ARRAY_SIZE(wm5102_devs), NULL, 0, NULL);
		break;
	case WM8280:
	case WM5110:
		ret = mfd_add_devices(arizona->dev, -1, florida_devs,
				      ARRAY_SIZE(florida_devs), NULL, 0, NULL);
		break;
	case WM8997:
		ret = mfd_add_devices(arizona->dev, -1, wm8997_devs,
				      ARRAY_SIZE(wm8997_devs), NULL, 0, NULL);
		break;
	}

	if (ret != 0) {
		dev_err(arizona->dev, "Failed to add subdevices: %d\n", ret);
		goto err_irq;
	}

#ifdef CONFIG_PM_RUNTIME
	regulator_disable(arizona->dcvdd);
#endif

	return 0;

err_irq:
	arizona_irq_exit(arizona);
err_reset:
	if (arizona->pdata.reset) {
		gpio_set_value_cansleep(arizona->pdata.reset, 0);
		gpio_free(arizona->pdata.reset);
	}
	regulator_disable(arizona->dcvdd);
err_enable:
	regulator_bulk_disable(arizona->num_core_supplies,
			       arizona->core_supplies);
err_early:
	mfd_remove_devices(dev);
	return ret;
}
Exemple #2
0
static int cs53l30_i2c_probe(struct i2c_client *client,
			     const struct i2c_device_id *id)
{
	const struct device_node *np = client->dev.of_node;
	struct device *dev = &client->dev;
	struct cs53l30_private *cs53l30;
	unsigned int devid = 0;
	unsigned int reg;
	int ret = 0, i;
	u8 val;

	cs53l30 = devm_kzalloc(dev, sizeof(*cs53l30), GFP_KERNEL);
	if (!cs53l30)
		return -ENOMEM;

	for (i = 0; i < ARRAY_SIZE(cs53l30->supplies); i++)
		cs53l30->supplies[i].supply = cs53l30_supply_names[i];

	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(cs53l30->supplies),
				      cs53l30->supplies);
	if (ret) {
		dev_err(dev, "failed to get supplies: %d\n", ret);
		return ret;
	}

	ret = regulator_bulk_enable(ARRAY_SIZE(cs53l30->supplies),
				    cs53l30->supplies);
	if (ret) {
		dev_err(dev, "failed to enable supplies: %d\n", ret);
		return ret;
	}

	/* Reset the Device */
	cs53l30->reset_gpio = devm_gpiod_get_optional(dev, "reset",
						      GPIOD_OUT_LOW);
	if (IS_ERR(cs53l30->reset_gpio)) {
		ret = PTR_ERR(cs53l30->reset_gpio);
		goto error;
	}

	gpiod_set_value_cansleep(cs53l30->reset_gpio, 1);

	i2c_set_clientdata(client, cs53l30);

	cs53l30->mclk_rate = 0;

	cs53l30->regmap = devm_regmap_init_i2c(client, &cs53l30_regmap);
	if (IS_ERR(cs53l30->regmap)) {
		ret = PTR_ERR(cs53l30->regmap);
		dev_err(dev, "regmap_init() failed: %d\n", ret);
		goto error;
	}

	/* Initialize codec */
	ret = regmap_read(cs53l30->regmap, CS53L30_DEVID_AB, &reg);
	devid = reg << 12;

	ret = regmap_read(cs53l30->regmap, CS53L30_DEVID_CD, &reg);
	devid |= reg << 4;

	ret = regmap_read(cs53l30->regmap, CS53L30_DEVID_E, &reg);
	devid |= (reg & 0xF0) >> 4;

	if (devid != CS53L30_DEVID) {
		ret = -ENODEV;
		dev_err(dev, "Device ID (%X). Expected %X\n",
			devid, CS53L30_DEVID);
		goto error;
	}

	ret = regmap_read(cs53l30->regmap, CS53L30_REVID, &reg);
	if (ret < 0) {
		dev_err(dev, "failed to get Revision ID: %d\n", ret);
		goto error;
	}

	/* Check if MCLK provided */
	cs53l30->mclk = devm_clk_get(dev, "mclk");
	if (IS_ERR(cs53l30->mclk)) {
		if (PTR_ERR(cs53l30->mclk) != -ENOENT) {
			ret = PTR_ERR(cs53l30->mclk);
			goto error;
		}
		/* Otherwise mark the mclk pointer to NULL */
		cs53l30->mclk = NULL;
	}

	/* Fetch the MUTE control */
	cs53l30->mute_gpio = devm_gpiod_get_optional(dev, "mute",
						     GPIOD_OUT_HIGH);
	if (IS_ERR(cs53l30->mute_gpio)) {
		ret = PTR_ERR(cs53l30->mute_gpio);
		goto error;
	}

	if (cs53l30->mute_gpio) {
		/* Enable MUTE controls via MUTE pin */
		regmap_write(cs53l30->regmap, CS53L30_MUTEP_CTL1,
			     CS53L30_MUTEP_CTL1_MUTEALL);
		/* Flip the polarity of MUTE pin */
		if (gpiod_is_active_low(cs53l30->mute_gpio))
			regmap_update_bits(cs53l30->regmap, CS53L30_MUTEP_CTL2,
					   CS53L30_MUTE_PIN_POLARITY, 0);
	}

	if (!of_property_read_u8(np, "cirrus,micbias-lvl", &val))
		regmap_update_bits(cs53l30->regmap, CS53L30_MICBIAS_CTL,
				   CS53L30_MIC_BIAS_CTRL_MASK, val);

	if (of_property_read_bool(np, "cirrus,use-sdout2"))
		cs53l30->use_sdout2 = true;

	dev_info(dev, "Cirrus Logic CS53L30, Revision: %02X\n", reg & 0xFF);

	ret = snd_soc_register_codec(dev, &cs53l30_driver, &cs53l30_dai, 1);
	if (ret) {
		dev_err(dev, "failed to register codec: %d\n", ret);
		goto error;
	}

	return 0;

error:
	regulator_bulk_disable(ARRAY_SIZE(cs53l30->supplies),
			       cs53l30->supplies);
	return ret;
}
Exemple #3
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_optional(&i2c_client->dev,
		"reset", GPIOD_OUT_LOW);
	if (IS_ERR(cs35l32->reset_gpio))
		return PTR_ERR(cs35l32->reset_gpio);

	if (cs35l32->reset_gpio)
		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;
}
int hw_sensor_get_dt_data(struct platform_device *pdev,
	sensor_t *sensor)
{
	struct device_node *of_node = pdev->dev.of_node;
	hwsensor_board_info_t *sensor_info = NULL;
	int rc = 0;
	u32 i, index = 0;
	char *gpio_tag = NULL;
	const char *gpio_ctrl_types[IO_MAX] =
		{"reset", "fsin", "pwdn", "vcm_pwdn", "suspend", "reset2"};

	cam_debug("enter %s", __func__);
	sensor_info = kzalloc(sizeof(hwsensor_board_info_t),
				GFP_KERNEL);
	if (!sensor_info) {
		cam_err("%s failed %d\n", __func__, __LINE__);
		return -ENOMEM;
	}
	sensor->board_info= sensor_info;

	rc = of_property_read_string(of_node, "huawei,sensor_name",
		&sensor_info->name);
	cam_debug("%s huawei,sensor_name %s, rc %d\n", __func__,
		sensor_info->name, rc);
	if (rc < 0) {
		cam_err("%s failed %d\n", __func__, __LINE__);
		goto fail;
	}

	rc = of_property_read_u32(of_node, "huawei,sensor_index",
		&sensor_info->sensor_index);
	cam_debug("%s huawei,sensor_index %d, rc %d\n", __func__,
		sensor_info->sensor_index, rc);
	if (rc < 0) {
		cam_err("%s failed %d\n", __func__, __LINE__);
		goto fail;
	}

	rc = of_property_read_u32(of_node, "huawei,interface_type",
		&sensor_info->interface_type);
	cam_debug("%s huawei,interface_type %d, rc %d\n", __func__,
		sensor_info->interface_type, rc);
	if (rc < 0) {
		cam_err("%s failed %d\n", __func__, __LINE__);
		goto fail;
	}

	rc = of_property_read_u32(of_node, "huawei,csi_lane",
		&sensor_info->csi_lane);
	cam_debug("%s huawei,csi_lane %d, rc %d\n", __func__,
		sensor_info->csi_lane, rc);
	if (rc < 0) {
		cam_err("%s failed %d\n", __func__, __LINE__);
		goto fail;
	}

	rc = of_property_read_u32(of_node, "huawei,csi_mipi_clk",
		&sensor_info->csi_mipi_clk);
	cam_debug("%s huawei,csi_mipi_clk %d, rc %d\n", __func__,
		sensor_info->csi_mipi_clk, rc);
	if (rc < 0) {
		cam_err("%s failed %d\n", __func__, __LINE__);
		goto fail;
	}

	rc = of_property_read_u32(of_node, "huawei,csi_index",
		&sensor_info->csi_index);
	cam_debug("%s huawei,csi_index %d, rc %d\n", __func__,
		sensor_info->csi_index, rc);
	if (rc < 0) {
		cam_err("%s failed %d\n", __func__, __LINE__);
		goto fail;
	}

	rc = of_property_read_u32(of_node, "huawei,pd_valid",
		&sensor_info->power_conf.pd_valid);
	cam_debug("%s huawei,pd_valid %d, rc %d\n", __func__,
		sensor_info->power_conf.pd_valid, rc);
	if (rc < 0) {
		cam_err("%s failed %d\n", __func__, __LINE__);
		goto fail;
	}

	rc = of_property_read_u32(of_node, "huawei,reset_valid",
		&sensor_info->power_conf.reset_valid);
	cam_debug("%s huawei,reset_valid %d, rc %d\n", __func__,
		sensor_info->power_conf.reset_valid, rc);
	if (rc < 0) {
		cam_err("%s failed %d\n", __func__, __LINE__);
		goto fail;
	}

	rc = of_property_read_u32(of_node, "huawei,vcmpd_valid",
		&sensor_info->power_conf.vcmpd_valid);
	cam_debug("%s huawei,vcmpd_valid %d, rc %d\n", __func__,
		sensor_info->power_conf.vcmpd_valid, rc);
	if (rc < 0) {
		cam_err("%s failed %d\n", __func__, __LINE__);
		goto fail;
	}

	rc = of_property_read_u32(of_node, "huawei,i2c-index",
		&sensor_info->i2c_config.index);
	cam_debug("%s huawei,i2c-index %d, rc %d\n", __func__,
		sensor_info->i2c_config.index, rc);
	if (rc < 0) {
		cam_err("%s failed %d\n", __func__, __LINE__);
		goto fail;
	}

	rc = of_property_read_u32(of_node, "huawei,i2c-speed",
		&sensor_info->i2c_config.speed);
	cam_debug("%s huawei,i2c-speed %d, rc %d\n", __func__,
		sensor_info->i2c_config.speed, rc);
	if (rc < 0) {
		cam_err("%s failed %d\n", __func__, __LINE__);
		goto fail;
	}

	rc = of_property_read_u32(of_node, "huawei,i2c-addr",
		&sensor_info->i2c_config.addr);
	cam_debug("%s huawei,i2c-addr 0x%x, rc %d\n", __func__,
		sensor_info->i2c_config.addr, rc);
	if (rc < 0) {
		cam_err("%s failed %d\n", __func__, __LINE__);
		goto fail;
	}

	rc = of_property_read_u32(of_node, "huawei,i2c-addr_bits",
		&sensor_info->i2c_config.addr_bits);
	cam_debug("%s huawei,i2c-addr_bits %d, rc %d\n", __func__,
		sensor_info->i2c_config.addr_bits, rc);
	if (rc < 0) {
		cam_err("%s failed %d\n", __func__, __LINE__);
		goto fail;
	}

	rc = of_property_read_u32(of_node, "huawei,i2c-val_bits",
		&sensor_info->i2c_config.val_bits);
	cam_debug("%s huawei,i2c-val_bits %d, rc %d\n", __func__,
		sensor_info->i2c_config.val_bits, rc);
	if (rc < 0) {
		cam_err("%s failed %d\n", __func__, __LINE__);
		goto fail;
	}

	rc = of_property_read_u32(of_node, "huawei,sensor_chipid",
		&sensor_info->sensor_chipid);
	cam_debug("%s huawei,sensor_chipid 0x%x, rc %d\n", __func__,
		sensor_info->sensor_chipid, rc);
	if (rc < 0) {
		cam_err("%s failed %d\n", __func__, __LINE__);
		goto fail;
	}

	rc = of_property_read_u32(of_node, "huawei,camif_id",
		&sensor_info->camif_id);
	cam_debug("%s huawei,camif_id 0x%x, rc %d\n", __func__,
		sensor_info->camif_id, rc);
	if (rc < 0) {
		cam_err("%s failed %d\n", __func__, __LINE__);
		goto fail;
	}

	rc = of_property_read_u32(of_node, "huawei,vcm_enable",
		&sensor_info->vcm_enable);
	cam_debug("%s huawei,vcm_enable %d, rc %d\n", __func__,
		sensor_info->vcm_enable, rc);
	if (rc < 0) {
		cam_err("%s failed %d\n", __func__, __LINE__);
		goto fail;
	}

	rc = of_property_read_u32(of_node, "huawei,sensor_type",
		&sensor_info->sensor_type);
	cam_debug("%s huawei,sensor_type %d, rc %d\n", __func__,
		sensor_info->sensor_type, rc);
	if (rc < 0) {
		cam_err("%s failed %d\n", __func__, __LINE__);
		goto fail;
	}

	if (sensor_info->vcm_enable) {
		rc = of_property_read_string(of_node, "huawei,vcm_name",
			&sensor_info->vcm_name);
		cam_debug("%s huawei,vcm_name %s, rc %d\n", __func__,
			sensor_info->vcm_name, rc);
		if (rc < 0) {
			cam_err("%s failed %d\n", __func__, __LINE__);
			goto fail;
		}
	}

	if (hw_is_fpga_board())
		return rc;

	/* get ldo */
	sensor_info->ldo_num = of_property_count_strings(of_node, "huawei,ldo-names");
	if(sensor_info->ldo_num < 0) {
			cam_err("%s failed %d\n", __func__, __LINE__);
			goto fail;
	}
	cam_debug("ldo num = %d", sensor_info->ldo_num);
	for (i = 0; i < sensor_info->ldo_num; i++) {
		rc = of_property_read_string_index(of_node, "huawei,ldo-names",
			i, &sensor_info->ldo[i].supply);
		if(rc < 0) {
			cam_err("%s failed %d\n", __func__, __LINE__);
			goto fail;
		}
	}

	rc = devm_regulator_bulk_get(&(pdev->dev), sensor_info->ldo_num, sensor_info->ldo);
	if (rc < 0) {
		cam_err("%s failed %d\n", __func__, __LINE__);
		goto fail;
	}

	sensor_info->gpio_num = of_gpio_count(of_node);
	if(sensor_info->gpio_num < 0 ) {
			cam_err("%s failed %d\n", __func__, __LINE__);
			goto fail;
	}
	for(i = 0; i < sensor_info->gpio_num; i++) {
		rc = of_property_read_string_index(of_node, "huawei,gpio-ctrl-types",
			i, (const char **)&gpio_tag);
		if(rc < 0) {
			cam_err("%s failed %d\n", __func__, __LINE__);
			goto fail;
		}
		for(index = 0; index < IO_MAX; index++) {
			if(!strcmp(gpio_ctrl_types[index], gpio_tag))
				sensor_info->gpios[index].gpio = of_get_gpio(of_node, i);
		}
		cam_info("gpio ctrl types: %s\n", gpio_tag);
	}

	return rc;
fail:
	cam_err("%s error exit.\n", __func__);
	kfree(sensor_info);
	sensor_info = NULL;
	return rc;
}
Exemple #5
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 int __devinit wm2000_i2c_probe(struct i2c_client *i2c,
				      const struct i2c_device_id *i2c_id)
{
	struct wm2000_priv *wm2000;
	struct wm2000_platform_data *pdata;
	const char *filename;
	const struct firmware *fw = NULL;
	int ret, i;
	int reg;
	u16 id;

	wm2000 = devm_kzalloc(&i2c->dev, sizeof(struct wm2000_priv),
			      GFP_KERNEL);
	if (wm2000 == NULL) {
		dev_err(&i2c->dev, "Unable to allocate private data\n");
		return -ENOMEM;
	}

	dev_set_drvdata(&i2c->dev, wm2000);

	wm2000->regmap = devm_regmap_init_i2c(i2c, &wm2000_regmap);
	if (IS_ERR(wm2000->regmap)) {
		ret = PTR_ERR(wm2000->regmap);
		dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
			ret);
		goto out;
	}

	for (i = 0; i < WM2000_NUM_SUPPLIES; i++)
		wm2000->supplies[i].supply = wm2000_supplies[i];

	ret = devm_regulator_bulk_get(&i2c->dev, WM2000_NUM_SUPPLIES,
				      wm2000->supplies);
	if (ret != 0) {
		dev_err(&i2c->dev, "Failed to get supplies: %d\n", ret);
		return ret;
	}

	ret = regulator_bulk_enable(WM2000_NUM_SUPPLIES, wm2000->supplies);
	if (ret != 0) {
		dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret);
		return ret;
	}

	/* Verify that this is a WM2000 */
	reg = wm2000_read(i2c, WM2000_REG_ID1);
	id = reg << 8;
	reg = wm2000_read(i2c, WM2000_REG_ID2);
	id |= reg & 0xff;

	if (id != 0x2000) {
		dev_err(&i2c->dev, "Device is not a WM2000 - ID %x\n", id);
		ret = -ENODEV;
		goto err_supplies;
	}

	reg = wm2000_read(i2c, WM2000_REG_REVISON);
	dev_info(&i2c->dev, "revision %c\n", reg + 'A');

	filename = "wm2000_anc.bin";
	pdata = dev_get_platdata(&i2c->dev);
	if (pdata) {
		wm2000->mclk_div = pdata->mclkdiv2;
		wm2000->speech_clarity = !pdata->speech_enh_disable;

		if (pdata->download_file)
			filename = pdata->download_file;
	}

	ret = request_firmware(&fw, filename, &i2c->dev);
	if (ret != 0)
		goto err_supplies;

	/* Pre-cook the concatenation of the register address onto the image */
	wm2000->anc_download_size = fw->size + 2;
	wm2000->anc_download = devm_kzalloc(&i2c->dev,
					    wm2000->anc_download_size,
					    GFP_KERNEL);
	if (wm2000->anc_download == NULL) {
		dev_err(&i2c->dev, "Out of memory\n");
		ret = -ENOMEM;
		goto err_supplies;
	}

	wm2000->anc_download[0] = 0x80;
	wm2000->anc_download[1] = 0x00;
	memcpy(wm2000->anc_download + 2, fw->data, fw->size);

	wm2000->anc_eng_ena = 1;
	wm2000->anc_active = 1;
	wm2000->spk_ena = 1;
	wm2000->i2c = i2c;

	wm2000_reset(wm2000);

	ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_wm2000, NULL, 0);

err_supplies:
	regulator_bulk_disable(WM2000_NUM_SUPPLIES, wm2000->supplies);

out:
	release_firmware(fw);
	return ret;
}
Exemple #7
0
static int tas5720_probe(struct i2c_client *client,
			 const struct i2c_device_id *id)
{
	struct device *dev = &client->dev;
	struct tas5720_data *data;
	const struct regmap_config *regmap_config;
	int ret;
	int i;

	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
	if (!data)
		return -ENOMEM;

	data->tas5720_client = client;
	data->devtype = id->driver_data;

	switch (id->driver_data) {
	case TAS5720:
		regmap_config = &tas5720_regmap_config;
		break;
	case TAS5722:
		regmap_config = &tas5722_regmap_config;
		break;
	default:
		dev_err(dev, "unexpected private driver data\n");
		return -EINVAL;
	}
	data->regmap = devm_regmap_init_i2c(client, regmap_config);
	if (IS_ERR(data->regmap)) {
		ret = PTR_ERR(data->regmap);
		dev_err(dev, "failed to allocate register map: %d\n", ret);
		return ret;
	}

	for (i = 0; i < ARRAY_SIZE(data->supplies); i++)
		data->supplies[i].supply = tas5720_supply_names[i];

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

	dev_set_drvdata(dev, data);

	switch (id->driver_data) {
	case TAS5720:
		ret = devm_snd_soc_register_component(&client->dev,
					&soc_component_dev_tas5720,
					tas5720_dai,
					ARRAY_SIZE(tas5720_dai));
		break;
	case TAS5722:
		ret = devm_snd_soc_register_component(&client->dev,
					&soc_component_dev_tas5722,
					tas5720_dai,
					ARRAY_SIZE(tas5720_dai));
		break;
	default:
		dev_err(dev, "unexpected private driver data\n");
		return -EINVAL;
	}
	if (ret < 0) {
		dev_err(dev, "failed to register component: %d\n", ret);
		return ret;
	}

	return 0;
}
Exemple #8
0
static int silead_ts_probe(struct i2c_client *client,
			   const struct i2c_device_id *id)
{
	struct silead_ts_data *data;
	struct device *dev = &client->dev;
	int error;

	if (!i2c_check_functionality(client->adapter,
				     I2C_FUNC_I2C |
				     I2C_FUNC_SMBUS_READ_I2C_BLOCK |
				     I2C_FUNC_SMBUS_WRITE_I2C_BLOCK)) {
		dev_err(dev, "I2C functionality check failed\n");
		return -ENXIO;
	}

	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
	if (!data)
		return -ENOMEM;

	i2c_set_clientdata(client, data);
	data->client = client;

	error = silead_ts_set_default_fw_name(data, id);
	if (error)
		return error;

	silead_ts_read_props(client);

	/* We must have the IRQ provided by DT or ACPI subsytem */
	if (client->irq <= 0)
		return -ENODEV;

	data->regulators[0].supply = "vddio";
	data->regulators[1].supply = "avdd";
	error = devm_regulator_bulk_get(dev, ARRAY_SIZE(data->regulators),
					data->regulators);
	if (error)
		return error;

	/*
	 * Enable regulators at probe and disable them at remove, we need
	 * to keep the chip powered otherwise it forgets its firmware.
	 */
	error = regulator_bulk_enable(ARRAY_SIZE(data->regulators),
				      data->regulators);
	if (error)
		return error;

	error = devm_add_action_or_reset(dev, silead_disable_regulator, data);
	if (error)
		return error;

	/* Power GPIO pin */
	data->gpio_power = devm_gpiod_get_optional(dev, "power", GPIOD_OUT_LOW);
	if (IS_ERR(data->gpio_power)) {
		if (PTR_ERR(data->gpio_power) != -EPROBE_DEFER)
			dev_err(dev, "Shutdown GPIO request failed\n");
		return PTR_ERR(data->gpio_power);
	}

	error = silead_ts_setup(client);
	if (error)
		return error;

	error = silead_ts_request_input_dev(data);
	if (error)
		return error;

	error = devm_request_threaded_irq(dev, client->irq,
					  NULL, silead_ts_threaded_irq_handler,
					  IRQF_ONESHOT, client->name, data);
	if (error) {
		if (error != -EPROBE_DEFER)
			dev_err(dev, "IRQ request failed %d\n", error);
		return error;
	}

	return 0;
}
Exemple #9
0
int mpu3050_common_probe(struct device *dev,
			 struct regmap *map,
			 int irq,
			 const char *name)
{
	struct iio_dev *indio_dev;
	struct mpu3050 *mpu3050;
	unsigned int val;
	int ret;

	indio_dev = devm_iio_device_alloc(dev, sizeof(*mpu3050));
	if (!indio_dev)
		return -ENOMEM;
	mpu3050 = iio_priv(indio_dev);

	mpu3050->dev = dev;
	mpu3050->map = map;
	mutex_init(&mpu3050->lock);
	/* Default fullscale: 2000 degrees per second */
	mpu3050->fullscale = FS_2000_DPS;
	/* 1 kHz, divide by 100, default frequency = 10 Hz */
	mpu3050->lpf = MPU3050_DLPF_CFG_188HZ;
	mpu3050->divisor = 99;

	/* Read the mounting matrix, if present */
	ret = of_iio_read_mount_matrix(dev, "mount-matrix",
				       &mpu3050->orientation);
	if (ret)
		return ret;

	/* Fetch and turn on regulators */
	mpu3050->regs[0].supply = mpu3050_reg_vdd;
	mpu3050->regs[1].supply = mpu3050_reg_vlogic;
	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(mpu3050->regs),
				      mpu3050->regs);
	if (ret) {
		dev_err(dev, "Cannot get regulators\n");
		return ret;
	}

	ret = mpu3050_power_up(mpu3050);
	if (ret)
		return ret;

	ret = regmap_read(map, MPU3050_CHIP_ID_REG, &val);
	if (ret) {
		dev_err(dev, "could not read device ID\n");
		ret = -ENODEV;

		goto err_power_down;
	}

	if ((val & MPU3050_CHIP_ID_MASK) != MPU3050_CHIP_ID) {
		dev_err(dev, "unsupported chip id %02x\n",
				(u8)(val & MPU3050_CHIP_ID_MASK));
		ret = -ENODEV;
		goto err_power_down;
	}

	ret = regmap_read(map, MPU3050_PRODUCT_ID_REG, &val);
	if (ret) {
		dev_err(dev, "could not read device ID\n");
		ret = -ENODEV;

		goto err_power_down;
	}
	dev_info(dev, "found MPU-3050 part no: %d, version: %d\n",
		 ((val >> 4) & 0xf), (val & 0xf));

	ret = mpu3050_hw_init(mpu3050);
	if (ret)
		goto err_power_down;

	indio_dev->dev.parent = dev;
	indio_dev->channels = mpu3050_channels;
	indio_dev->num_channels = ARRAY_SIZE(mpu3050_channels);
	indio_dev->info = &mpu3050_info;
	indio_dev->available_scan_masks = mpu3050_scan_masks;
	indio_dev->modes = INDIO_DIRECT_MODE;
	indio_dev->name = name;

	ret = iio_triggered_buffer_setup(indio_dev, iio_pollfunc_store_time,
					 mpu3050_trigger_handler,
					 &mpu3050_buffer_setup_ops);
	if (ret) {
		dev_err(dev, "triggered buffer setup failed\n");
		goto err_power_down;
	}

	ret = iio_device_register(indio_dev);
	if (ret) {
		dev_err(dev, "device register failed\n");
		goto err_cleanup_buffer;
	}

	dev_set_drvdata(dev, indio_dev);

	/* Check if we have an assigned IRQ to use as trigger */
	if (irq) {
		ret = mpu3050_trigger_probe(indio_dev, irq);
		if (ret)
			dev_err(dev, "failed to register trigger\n");
	}

	/* Enable runtime PM */
	pm_runtime_get_noresume(dev);
	pm_runtime_set_active(dev);
	pm_runtime_enable(dev);
	/*
	 * Set autosuspend to two orders of magnitude larger than the
	 * start-up time. 100ms start-up time means 10000ms autosuspend,
	 * i.e. 10 seconds.
	 */
	pm_runtime_set_autosuspend_delay(dev, 10000);
	pm_runtime_use_autosuspend(dev);
	pm_runtime_put(dev);

	return 0;

err_cleanup_buffer:
	iio_triggered_buffer_cleanup(indio_dev);
err_power_down:
	mpu3050_power_down(mpu3050);

	return ret;
}
Exemple #10
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;
}
Exemple #11
0
static int tegra_ahci_probe(struct platform_device *pdev)
{
	struct ahci_host_priv *hpriv;
	struct tegra_ahci_priv *tegra;
	struct resource *res;
	int ret;

	hpriv = ahci_platform_get_resources(pdev);
	if (IS_ERR(hpriv))
		return PTR_ERR(hpriv);

	tegra = devm_kzalloc(&pdev->dev, sizeof(*tegra), GFP_KERNEL);
	if (!tegra)
		return -ENOMEM;

	hpriv->plat_data = tegra;

	tegra->pdev = pdev;

	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
	tegra->sata_regs = devm_ioremap_resource(&pdev->dev, res);
	if (IS_ERR(tegra->sata_regs))
		return PTR_ERR(tegra->sata_regs);

	tegra->sata_rst = devm_reset_control_get(&pdev->dev, "sata");
	if (IS_ERR(tegra->sata_rst)) {
		dev_err(&pdev->dev, "Failed to get sata reset\n");
		return PTR_ERR(tegra->sata_rst);
	}

	tegra->sata_oob_rst = devm_reset_control_get(&pdev->dev, "sata-oob");
	if (IS_ERR(tegra->sata_oob_rst)) {
		dev_err(&pdev->dev, "Failed to get sata-oob reset\n");
		return PTR_ERR(tegra->sata_oob_rst);
	}

	tegra->sata_cold_rst = devm_reset_control_get(&pdev->dev, "sata-cold");
	if (IS_ERR(tegra->sata_cold_rst)) {
		dev_err(&pdev->dev, "Failed to get sata-cold reset\n");
		return PTR_ERR(tegra->sata_cold_rst);
	}

	tegra->sata_clk = devm_clk_get(&pdev->dev, "sata");
	if (IS_ERR(tegra->sata_clk)) {
		dev_err(&pdev->dev, "Failed to get sata clock\n");
		return PTR_ERR(tegra->sata_clk);
	}

	tegra->supplies[0].supply = "avdd";
	tegra->supplies[1].supply = "hvdd";
	tegra->supplies[2].supply = "vddio";
	tegra->supplies[3].supply = "target-5v";
	tegra->supplies[4].supply = "target-12v";

	ret = devm_regulator_bulk_get(&pdev->dev, ARRAY_SIZE(tegra->supplies),
				      tegra->supplies);
	if (ret) {
		dev_err(&pdev->dev, "Failed to get regulators\n");
		return ret;
	}

	ret = tegra_ahci_controller_init(hpriv);
	if (ret)
		return ret;

	ret = ahci_platform_init_host(pdev, hpriv, &ahci_tegra_port_info);
	if (ret)
		goto deinit_controller;

	return 0;

deinit_controller:
	tegra_ahci_controller_deinit(hpriv);

	return ret;
};
Exemple #12
0
static int dwc2_lowlevel_hw_init(struct dwc2_hsotg *hsotg)
{
	int i, ret;

	/* Set default UTMI width */
	hsotg->phyif = GUSBCFG_PHYIF16;

	/*
	 * Attempt to find a generic PHY, then look for an old style
	 * USB PHY and then fall back to pdata
	 */
	hsotg->phy = devm_phy_get(hsotg->dev, "usb2-phy");
	if (IS_ERR(hsotg->phy)) {
		ret = PTR_ERR(hsotg->phy);
		switch (ret) {
		case -ENODEV:
		case -ENOSYS:
			hsotg->phy = NULL;
			break;
		case -EPROBE_DEFER:
			return ret;
		default:
			dev_err(hsotg->dev, "error getting phy %d\n", ret);
			return ret;
		}
	}

	if (!hsotg->phy) {
		hsotg->uphy = devm_usb_get_phy(hsotg->dev, USB_PHY_TYPE_USB2);
		if (IS_ERR(hsotg->uphy)) {
			ret = PTR_ERR(hsotg->uphy);
			switch (ret) {
			case -ENODEV:
			case -ENXIO:
				hsotg->uphy = NULL;
				break;
			case -EPROBE_DEFER:
				return ret;
			default:
				dev_err(hsotg->dev, "error getting usb phy %d\n",
					ret);
				return ret;
			}
		}
	}

	hsotg->plat = dev_get_platdata(hsotg->dev);

	if (hsotg->phy) {
		/*
		 * If using the generic PHY framework, check if the PHY bus
		 * width is 8-bit and set the phyif appropriately.
		 */
		if (phy_get_bus_width(hsotg->phy) == 8)
			hsotg->phyif = GUSBCFG_PHYIF8;
	}

	/* Clock */
	hsotg->clk = devm_clk_get(hsotg->dev, "otg");
	if (IS_ERR(hsotg->clk)) {
		hsotg->clk = NULL;
		dev_dbg(hsotg->dev, "cannot get otg clock\n");
	}

	/* Regulators */
	for (i = 0; i < ARRAY_SIZE(hsotg->supplies); i++)
		hsotg->supplies[i].supply = dwc2_hsotg_supply_names[i];

	ret = devm_regulator_bulk_get(hsotg->dev, ARRAY_SIZE(hsotg->supplies),
				      hsotg->supplies);
	if (ret) {
		dev_err(hsotg->dev, "failed to request supplies: %d\n", ret);
		return ret;
	}
	return 0;
}
Exemple #13
0
static int wm8523_i2c_probe(struct i2c_client *i2c,
			    const struct i2c_device_id *id)
{
	struct wm8523_priv *wm8523;
	unsigned int val;
	int ret, i;

	wm8523 = devm_kzalloc(&i2c->dev, sizeof(struct wm8523_priv),
			      GFP_KERNEL);
	if (wm8523 == NULL)
		return -ENOMEM;

	wm8523->regmap = devm_regmap_init_i2c(i2c, &wm8523_regmap);
	if (IS_ERR(wm8523->regmap)) {
		ret = PTR_ERR(wm8523->regmap);
		dev_err(&i2c->dev, "Failed to create regmap: %d\n", ret);
		return ret;
	}

	for (i = 0; i < ARRAY_SIZE(wm8523->supplies); i++)
		wm8523->supplies[i].supply = wm8523_supply_names[i];

	ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(wm8523->supplies),
				      wm8523->supplies);
	if (ret != 0) {
		dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret);
		return ret;
	}

	ret = regulator_bulk_enable(ARRAY_SIZE(wm8523->supplies),
				    wm8523->supplies);
	if (ret != 0) {
		dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret);
		return ret;
	}

	ret = regmap_read(wm8523->regmap, WM8523_DEVICE_ID, &val);
	if (ret < 0) {
		dev_err(&i2c->dev, "Failed to read ID register\n");
		goto err_enable;
	}
	if (val != 0x8523) {
		dev_err(&i2c->dev, "Device is not a WM8523, ID is %x\n", ret);
		ret = -EINVAL;
		goto err_enable;
	}

	ret = regmap_read(wm8523->regmap, WM8523_REVISION, &val);
	if (ret < 0) {
		dev_err(&i2c->dev, "Failed to read revision register\n");
		goto err_enable;
	}
	dev_info(&i2c->dev, "revision %c\n",
		 (val & WM8523_CHIP_REV_MASK) + 'A');

	ret = regmap_write(wm8523->regmap, WM8523_DEVICE_ID, 0x8523);
	if (ret != 0) {
		dev_err(&i2c->dev, "Failed to reset device: %d\n", ret);
		goto err_enable;
	}

	regulator_bulk_disable(ARRAY_SIZE(wm8523->supplies), wm8523->supplies);

	i2c_set_clientdata(i2c, wm8523);

	ret =  snd_soc_register_codec(&i2c->dev,
			&soc_codec_dev_wm8523, &wm8523_dai, 1);

	return ret;

err_enable:
	regulator_bulk_disable(ARRAY_SIZE(wm8523->supplies), wm8523->supplies);
	return ret;
}
int __devinit arizona_dev_init(struct arizona *arizona)
{
	struct device *dev = arizona->dev;
	const char *type_name;
	unsigned int reg, val;
	int (*apply_patch)(struct arizona *) = NULL;
	int ret, i;

	dev_set_drvdata(arizona->dev, arizona);
	mutex_init(&arizona->clk_lock);
	mutex_init(&arizona->reg_setting_lock);

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

	regcache_cache_only(arizona->regmap, true);

	switch (arizona->type) {
	case WM5102:
	case WM5110:
		for (i = 0; i < ARRAY_SIZE(wm5102_core_supplies); i++)
			arizona->core_supplies[i].supply
				= wm5102_core_supplies[i];
		arizona->num_core_supplies = ARRAY_SIZE(wm5102_core_supplies);
		break;
	default:
		dev_err(arizona->dev, "Unknown device type %d\n",
			arizona->type);
		return -EINVAL;
	}

	ret = mfd_add_devices(arizona->dev, -1, early_devs,
			      ARRAY_SIZE(early_devs), NULL, 0);
	if (ret != 0) {
		dev_err(dev, "Failed to add early children: %d\n", ret);
		return ret;
	}

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

	arizona->dcvdd = devm_regulator_get(arizona->dev, "DCVDD");
	if (IS_ERR(arizona->dcvdd)) {
		ret = PTR_ERR(arizona->dcvdd);
		dev_err(dev, "Failed to request DCVDD: %d\n", ret);
		goto err_early;
	}

	if (arizona->pdata.reset) {
		/* Start out with /RESET low to put the chip into reset */
		ret = gpio_request_one(arizona->pdata.reset,
				       GPIOF_DIR_OUT | GPIOF_INIT_LOW,
				       "arizona /RESET");
		if (ret != 0) {
			dev_err(dev, "Failed to request /RESET: %d\n", ret);
			goto err_early;
		}
	}

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

	ret = regulator_enable(arizona->dcvdd);
	if (ret != 0) {
		dev_err(dev, "Failed to enable DCVDD: %d\n", ret);
		goto err_enable;
	}

	if (arizona->pdata.control_init_time)
		msleep(arizona->pdata.control_init_time);

	if (arizona->pdata.reset) {
		gpio_set_value_cansleep(arizona->pdata.reset, 1);
		msleep(1);
	}

	regcache_cache_only(arizona->regmap, false);

	ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, &reg);
	if (ret != 0) {
		dev_err(dev, "Failed to read ID register: %d\n", ret);
		goto err_reset;
	}

	ret = regmap_read(arizona->regmap, ARIZONA_DEVICE_REVISION,
			  &arizona->rev);
	if (ret != 0) {
		dev_err(dev, "Failed to read revision register: %d\n", ret);
		goto err_reset;
	}
	arizona->rev &= ARIZONA_DEVICE_REVISION_MASK;

	switch (reg) {
#ifdef CONFIG_MFD_WM5102
	case 0x5102:
		type_name = "WM5102";
		if (arizona->type != WM5102) {
			dev_err(arizona->dev, "WM5102 registered as %d\n",
				arizona->type);
			arizona->type = WM5102;
		}
		apply_patch = wm5102_patch;
		arizona->rev &= 0x7;
		break;
#endif
#ifdef CONFIG_MFD_WM5110
	case 0x5110:
		type_name = "WM5110";
		if (arizona->type != WM5110) {
			dev_err(arizona->dev, "WM5110 registered as %d\n",
				arizona->type);
			arizona->type = WM5110;
		}
		apply_patch = wm5110_patch;
		break;
#endif
	default:
		dev_err(arizona->dev, "Unknown device ID %x\n", reg);
		goto err_reset;
	}

	dev_info(dev, "%s revision %c\n", type_name, arizona->rev + 'A');

	/* If we have a /RESET GPIO we'll already be reset */
	if (!arizona->pdata.reset) {
		ret = regmap_write(arizona->regmap, ARIZONA_SOFTWARE_RESET, 0);
		if (ret != 0) {
			dev_err(dev, "Failed to reset device: %d\n", ret);
			goto err_reset;
		}
		msleep(1);
	}

	switch (arizona->type) {
	case WM5102:
		ret = regmap_read(arizona->regmap, 0x19, &val);
		if (ret != 0)
			dev_err(dev,
				"Failed to check write sequencer state: %d\n",
				ret);
		else if (val & 0x01)
			break;
		/* Fall through */
	default:
		ret = arizona_wait_for_boot(arizona);
		if (ret != 0) {
			dev_err(arizona->dev,
				"Device failed initial boot: %d\n", ret);
			goto err_reset;
		}
		break;
	}

	if (apply_patch) {
		ret = apply_patch(arizona);
		if (ret != 0) {
			dev_err(arizona->dev, "Failed to apply patch: %d\n",
				ret);
			goto err_reset;
		}

		switch (arizona->type) {
		case WM5102:
			ret = arizona_apply_hardware_patch(arizona);
			if (ret != 0) {
				dev_err(arizona->dev,
					"Failed to apply hardware patch: %d\n",
					ret);
				goto err_reset;
			}
			break;
		default:
			break;
		}
	}

	for (i = 0; i < ARRAY_SIZE(arizona->pdata.gpio_defaults); i++) {
		if (!arizona->pdata.gpio_defaults[i])
			continue;

		regmap_write(arizona->regmap, ARIZONA_GPIO1_CTRL + i,
			     arizona->pdata.gpio_defaults[i]);
	}

	pm_runtime_enable(arizona->dev);

	/* Chip default */
	if (!arizona->pdata.clk32k_src)
		arizona->pdata.clk32k_src = ARIZONA_32KZ_MCLK2;

	switch (arizona->pdata.clk32k_src) {
	case ARIZONA_32KZ_MCLK1:
	case ARIZONA_32KZ_MCLK2:
		regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
				   ARIZONA_CLK_32K_SRC_MASK,
				   arizona->pdata.clk32k_src - 1);
		arizona_clk32k_enable(arizona);
		break;
	case ARIZONA_32KZ_NONE:
		regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
				   ARIZONA_CLK_32K_SRC_MASK, 2);
		break;
	default:
		dev_err(arizona->dev, "Invalid 32kHz clock source: %d\n",
			arizona->pdata.clk32k_src);
		ret = -EINVAL;
		goto err_reset;
	}

	for (i = 0; i < ARIZONA_MAX_MICBIAS; i++) {
		if (!arizona->pdata.micbias[i].mV &&
		    !arizona->pdata.micbias[i].bypass)
			continue;

		/* Apply default for bypass mode */
		if (!arizona->pdata.micbias[i].mV)
			arizona->pdata.micbias[i].mV = 2800;

		val = (arizona->pdata.micbias[i].mV - 1500) / 100;

		val <<= ARIZONA_MICB1_LVL_SHIFT;

		if (arizona->pdata.micbias[i].ext_cap)
			val |= ARIZONA_MICB1_EXT_CAP;

		if (arizona->pdata.micbias[i].discharge)
			val |= ARIZONA_MICB1_DISCH;

		if (arizona->pdata.micbias[i].fast_start)
			val |= ARIZONA_MICB1_RATE;

		if (arizona->pdata.micbias[i].bypass)
			val |= ARIZONA_MICB1_BYPASS;

		regmap_update_bits(arizona->regmap,
				   ARIZONA_MIC_BIAS_CTRL_1 + i,
				   ARIZONA_MICB1_LVL_MASK |
				   ARIZONA_MICB1_DISCH |
				   ARIZONA_MICB1_BYPASS |
				   ARIZONA_MICB1_RATE, val);
	}

	for (i = 0; i < ARIZONA_MAX_INPUT; i++) {
		/* Default for both is 0 so noop with defaults */
		val = arizona->pdata.dmic_ref[i]
			<< ARIZONA_IN1_DMIC_SUP_SHIFT;
		val |= arizona->pdata.inmode[i] << ARIZONA_IN1_MODE_SHIFT;

		regmap_update_bits(arizona->regmap,
				   ARIZONA_IN1L_CONTROL + (i * 8),
				   ARIZONA_IN1_DMIC_SUP_MASK |
				   ARIZONA_IN1_MODE_MASK, val);
	}

	for (i = 0; i < ARIZONA_MAX_OUTPUT; i++) {
		/* Default is 0 so noop with defaults */
		if (arizona->pdata.out_mono[i])
			val = ARIZONA_OUT1_MONO;
		else
			val = 0;

		regmap_update_bits(arizona->regmap,
				   ARIZONA_OUTPUT_PATH_CONFIG_1L + (i * 8),
				   ARIZONA_OUT1_MONO, val);
	}

	for (i = 0; i < ARIZONA_MAX_PDM_SPK; i++) {
		if (arizona->pdata.spk_mute[i])
			regmap_update_bits(arizona->regmap,
					   ARIZONA_PDM_SPK1_CTRL_1 + (i * 2),
					   ARIZONA_SPK1_MUTE_ENDIAN_MASK |
					   ARIZONA_SPK1_MUTE_SEQ1_MASK,
					   arizona->pdata.spk_mute[i]);

		if (arizona->pdata.spk_fmt[i])
			regmap_update_bits(arizona->regmap,
					   ARIZONA_PDM_SPK1_CTRL_2 + (i * 2),
					   ARIZONA_SPK1_FMT_MASK,
					   arizona->pdata.spk_fmt[i]);
	}

	/* set virtual IRQs */
	arizona->virq[0] = arizona->pdata.irq_base;
	arizona->virq[1] = arizona->pdata.irq_base + ARIZONA_NUM_IRQ;

	switch (arizona->pdata.mic_spk_clamp) {
	case ARIZONA_MIC_CLAMP_SPKLN:
		regmap_update_bits(arizona->regmap, ARIZONA_SPK_CTRL_2,
				   0x3c, 0xc);
		break;
	case ARIZONA_MIC_CLAMP_SPKLP:
		regmap_update_bits(arizona->regmap, ARIZONA_SPK_CTRL_2,
				   0x3c, 0x1c);
		break;
	case ARIZONA_MIC_CLAMP_SPKRN:
		regmap_update_bits(arizona->regmap, ARIZONA_SPK_CTRL_3,
				   0x3c, 0xc);
		break;
	case ARIZONA_MIC_CLAMP_SPKRP:
		regmap_update_bits(arizona->regmap, ARIZONA_SPK_CTRL_3,
				   0x3c, 0x1c);
		break;
	default:
		break;
	}

	/* Set up for interrupts */
	ret = arizona_irq_init(arizona);
	if (ret != 0)
		goto err_reset;

	arizona_request_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, "CLKGEN error",
			    arizona_clkgen_err, arizona);
	arizona_request_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, "Overclocked",
			    arizona_overclocked, arizona);
	arizona_request_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, "Underclocked",
			    arizona_underclocked, arizona);

	switch (arizona->type) {
	case WM5102:
		ret = mfd_add_devices(arizona->dev, -1, wm5102_devs,
				      ARRAY_SIZE(wm5102_devs), NULL, 0);
		break;
	case WM5110:
		ret = mfd_add_devices(arizona->dev, -1, wm5110_devs,
				      ARRAY_SIZE(wm5110_devs), NULL, 0);
		break;
	}

	if (ret != 0) {
		dev_err(arizona->dev, "Failed to add subdevices: %d\n", ret);
		goto err_irq;
	}

	if (arizona->pdata.init_done)
		arizona->pdata.init_done();

#ifdef CONFIG_PM_RUNTIME
	regulator_disable(arizona->dcvdd);
#endif

	return 0;

err_irq:
	arizona_irq_exit(arizona);
err_reset:
	if (arizona->pdata.reset) {
		gpio_set_value_cansleep(arizona->pdata.reset, 0);
		gpio_free(arizona->pdata.reset);
	}
	regulator_disable(arizona->dcvdd);
err_enable:
	regulator_bulk_disable(arizona->num_core_supplies,
			       arizona->core_supplies);
err_early:
	mfd_remove_devices(dev);
	return ret;
}
Exemple #15
0
static int tas5086_i2c_probe(struct i2c_client *i2c,
			     const struct i2c_device_id *id)
{
	struct tas5086_private *priv;
	struct device *dev = &i2c->dev;
	int gpio_nreset = -EINVAL;
	int i, ret;

	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
	if (!priv)
		return -ENOMEM;

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

	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(priv->supplies),
				      priv->supplies);
	if (ret < 0) {
		dev_err(dev, "Failed to get regulators: %d\n", ret);
		return ret;
	}

	priv->regmap = devm_regmap_init(dev, NULL, i2c, &tas5086_regmap);
	if (IS_ERR(priv->regmap)) {
		ret = PTR_ERR(priv->regmap);
		dev_err(&i2c->dev, "Failed to create regmap: %d\n", ret);
		return ret;
	}

	i2c_set_clientdata(i2c, priv);

	if (of_match_device(of_match_ptr(tas5086_dt_ids), dev)) {
		struct device_node *of_node = dev->of_node;
		gpio_nreset = of_get_named_gpio(of_node, "reset-gpio", 0);
	}

	if (gpio_is_valid(gpio_nreset))
		if (devm_gpio_request(dev, gpio_nreset, "TAS5086 Reset"))
			gpio_nreset = -EINVAL;

	priv->gpio_nreset = gpio_nreset;

	ret = regulator_bulk_enable(ARRAY_SIZE(priv->supplies), priv->supplies);
	if (ret < 0) {
		dev_err(dev, "Failed to enable regulators: %d\n", ret);
		return ret;
	}

	tas5086_reset(priv);

	/* The TAS5086 always returns 0x03 in its TAS5086_DEV_ID register */
	ret = regmap_read(priv->regmap, TAS5086_DEV_ID, &i);
	if (ret == 0 && i != 0x3) {
		dev_err(dev,
			"Failed to identify TAS5086 codec (got %02x)\n", i);
		ret = -ENODEV;
	}

	/*
	 * The chip has been identified, so we can turn off the power
	 * again until the dai link is set up.
	 */
	regulator_bulk_disable(ARRAY_SIZE(priv->supplies), priv->supplies);

	if (ret == 0)
		ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_tas5086,
					     &tas5086_dai, 1);

	return ret;
}
Exemple #16
0
static int si476x_core_probe(struct i2c_client *client,
			     const struct i2c_device_id *id)
{
	int rval;
	struct si476x_core          *core;
	struct si476x_platform_data *pdata;
	struct mfd_cell *cell;
	int              cell_num;

	core = devm_kzalloc(&client->dev, sizeof(*core), GFP_KERNEL);
	if (!core) {
		dev_err(&client->dev,
			"failed to allocate 'struct si476x_core'\n");
		return -ENOMEM;
	}
	core->client = client;

	core->regmap = devm_regmap_init_si476x(core);
	if (IS_ERR(core->regmap)) {
		rval = PTR_ERR(core->regmap);
		dev_err(&client->dev,
			"Failed to allocate register map: %d\n",
			rval);
		return rval;
	}

	i2c_set_clientdata(client, core);

	atomic_set(&core->is_alive, 0);
	core->power_state = SI476X_POWER_DOWN;

	pdata = dev_get_platdata(&client->dev);
	if (pdata) {
		memcpy(&core->power_up_parameters,
		       &pdata->power_up_parameters,
		       sizeof(core->power_up_parameters));

		core->gpio_reset = -1;
		if (gpio_is_valid(pdata->gpio_reset)) {
			rval = gpio_request(pdata->gpio_reset, "si476x reset");
			if (rval) {
				dev_err(&client->dev,
					"Failed to request gpio: %d\n", rval);
				return rval;
			}
			core->gpio_reset = pdata->gpio_reset;
			gpio_direction_output(core->gpio_reset, 0);
		}

		core->diversity_mode = pdata->diversity_mode;
		memcpy(&core->pinmux, &pdata->pinmux,
		       sizeof(struct si476x_pinmux));
	} else {
		dev_err(&client->dev, "No platform data provided\n");
		return -EINVAL;
	}

	core->supplies[0].supply = "vd";
	core->supplies[1].supply = "va";
	core->supplies[2].supply = "vio1";
	core->supplies[3].supply = "vio2";

	rval = devm_regulator_bulk_get(&client->dev,
				       ARRAY_SIZE(core->supplies),
				       core->supplies);
	if (rval) {
		dev_err(&client->dev, "Failet to gett all of the regulators\n");
		goto free_gpio;
	}

	mutex_init(&core->cmd_lock);
	init_waitqueue_head(&core->command);
	init_waitqueue_head(&core->tuning);

	rval = kfifo_alloc(&core->rds_fifo,
			   SI476X_DRIVER_RDS_FIFO_DEPTH *
			   sizeof(struct v4l2_rds_data),
			   GFP_KERNEL);
	if (rval) {
		dev_err(&client->dev, "Could not allocate the FIFO\n");
		goto free_gpio;
	}
	mutex_init(&core->rds_drainer_status_lock);
	init_waitqueue_head(&core->rds_read_queue);
	INIT_WORK(&core->rds_fifo_drainer, si476x_core_drain_rds_fifo);

	if (client->irq) {
		rval = devm_request_threaded_irq(&client->dev,
						 client->irq, NULL,
						 si476x_core_interrupt,
						 IRQF_TRIGGER_FALLING |
						 IRQF_ONESHOT,
						 client->name, core);
		if (rval < 0) {
			dev_err(&client->dev, "Could not request IRQ %d\n",
				client->irq);
			goto free_kfifo;
		}
		disable_irq(client->irq);
		dev_dbg(&client->dev, "IRQ requested.\n");

		core->rds_fifo_depth = 20;
	} else {
		INIT_DELAYED_WORK(&core->status_monitor,
				  si476x_core_poll_loop);
		dev_info(&client->dev,
			 "No IRQ number specified, will use polling\n");

		core->rds_fifo_depth = 5;
	}

	core->chip_id = id->driver_data;

	rval = si476x_core_get_revision_info(core);
	if (rval < 0) {
		rval = -ENODEV;
		goto free_kfifo;
	}

	cell_num = 0;

	cell = &core->cells[SI476X_RADIO_CELL];
	cell->name = "si476x-radio";
	cell_num++;

#ifdef CONFIG_SND_SOC_SI476X
	if ((core->chip_id == SI476X_CHIP_SI4761 ||
	     core->chip_id == SI476X_CHIP_SI4764)	&&
	    core->pinmux.dclk == SI476X_DCLK_DAUDIO     &&
	    core->pinmux.dfs  == SI476X_DFS_DAUDIO      &&
	    core->pinmux.dout == SI476X_DOUT_I2S_OUTPUT &&
	    core->pinmux.xout == SI476X_XOUT_TRISTATE) {
		cell = &core->cells[SI476X_CODEC_CELL];
		cell->name          = "si476x-codec";
		cell_num++;
	}
#endif
	rval = mfd_add_devices(&client->dev,
			       (client->adapter->nr << 8) + client->addr,
			       core->cells, cell_num,
			       NULL, 0, NULL);
	if (!rval)
		return 0;

free_kfifo:
	kfifo_free(&core->rds_fifo);

free_gpio:
	if (gpio_is_valid(core->gpio_reset))
		gpio_free(core->gpio_reset);

	return rval;
}
int pcm512x_probe(struct device *dev, struct regmap *regmap)
{
	struct pcm512x_priv *pcm512x;
	int i, ret;

	pcm512x = devm_kzalloc(dev, sizeof(struct pcm512x_priv), GFP_KERNEL);
	if (!pcm512x)
		return -ENOMEM;

	dev_set_drvdata(dev, pcm512x);
	pcm512x->regmap = regmap;

	for (i = 0; i < ARRAY_SIZE(pcm512x->supplies); i++)
		pcm512x->supplies[i].supply = pcm512x_supply_names[i];

	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(pcm512x->supplies),
				      pcm512x->supplies);
	if (ret != 0) {
		dev_err(dev, "Failed to get supplies: %d\n", ret);
		return ret;
	}

	pcm512x->supply_nb[0].notifier_call = pcm512x_regulator_event_0;
	pcm512x->supply_nb[1].notifier_call = pcm512x_regulator_event_1;
	pcm512x->supply_nb[2].notifier_call = pcm512x_regulator_event_2;

	for (i = 0; i < ARRAY_SIZE(pcm512x->supplies); i++) {
		ret = regulator_register_notifier(pcm512x->supplies[i].consumer,
						  &pcm512x->supply_nb[i]);
		if (ret != 0) {
			dev_err(dev,
				"Failed to register regulator notifier: %d\n",
				ret);
		}
	}

	ret = regulator_bulk_enable(ARRAY_SIZE(pcm512x->supplies),
				    pcm512x->supplies);
	if (ret != 0) {
		dev_err(dev, "Failed to enable supplies: %d\n", ret);
		return ret;
	}

	/* Reset the device, verifying I/O in the process for I2C */
	ret = regmap_write(regmap, PCM512x_RESET,
			   PCM512x_RSTM | PCM512x_RSTR);
	if (ret != 0) {
		dev_err(dev, "Failed to reset device: %d\n", ret);
		goto err;
	}

	ret = regmap_write(regmap, PCM512x_RESET, 0);
	if (ret != 0) {
		dev_err(dev, "Failed to reset device: %d\n", ret);
		goto err;
	}

	pcm512x->sclk = devm_clk_get(dev, NULL);
	if (IS_ERR(pcm512x->sclk)) {
		if (PTR_ERR(pcm512x->sclk) == -EPROBE_DEFER)
			return -EPROBE_DEFER;

		dev_info(dev, "No SCLK, using BCLK: %ld\n",
			 PTR_ERR(pcm512x->sclk));

		/* Disable reporting of missing SCLK as an error */
		regmap_update_bits(regmap, PCM512x_ERROR_DETECT,
				   PCM512x_IDCH, PCM512x_IDCH);

		/* Switch PLL input to BCLK */
		regmap_update_bits(regmap, PCM512x_PLL_REF,
				   PCM512x_SREF, PCM512x_SREF);
	} else {
		ret = clk_prepare_enable(pcm512x->sclk);
		if (ret != 0) {
			dev_err(dev, "Failed to enable SCLK: %d\n", ret);
			return ret;
		}
	}

	/* Default to standby mode */
	ret = regmap_update_bits(pcm512x->regmap, PCM512x_POWER,
				 PCM512x_RQST, PCM512x_RQST);
	if (ret != 0) {
		dev_err(dev, "Failed to request standby: %d\n",
			ret);
		goto err_clk;
	}

	pm_runtime_set_active(dev);
	pm_runtime_enable(dev);
	pm_runtime_idle(dev);

	ret = snd_soc_register_codec(dev, &pcm512x_codec_driver,
				    &pcm512x_dai, 1);
	if (ret != 0) {
		dev_err(dev, "Failed to register CODEC: %d\n", ret);
		goto err_pm;
	}

	return 0;

err_pm:
	pm_runtime_disable(dev);
err_clk:
	if (!IS_ERR(pcm512x->sclk))
		clk_disable_unprepare(pcm512x->sclk);
err:
	regulator_bulk_disable(ARRAY_SIZE(pcm512x->supplies),
				     pcm512x->supplies);
	return ret;
}
Exemple #18
0
int pcm512x_probe(struct device *dev, struct regmap *regmap)
{
	struct pcm512x_priv *pcm512x;
	int i, ret;

	pcm512x = devm_kzalloc(dev, sizeof(struct pcm512x_priv), GFP_KERNEL);
	if (!pcm512x)
		return -ENOMEM;

	dev_set_drvdata(dev, pcm512x);
	pcm512x->regmap = regmap;

	for (i = 0; i < ARRAY_SIZE(pcm512x->supplies); i++)
		pcm512x->supplies[i].supply = pcm512x_supply_names[i];

	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(pcm512x->supplies),
				      pcm512x->supplies);
	if (ret != 0) {
		dev_err(dev, "Failed to get supplies: %d\n", ret);
		return ret;
	}

	pcm512x->supply_nb[0].notifier_call = pcm512x_regulator_event_0;
	pcm512x->supply_nb[1].notifier_call = pcm512x_regulator_event_1;
	pcm512x->supply_nb[2].notifier_call = pcm512x_regulator_event_2;

	for (i = 0; i < ARRAY_SIZE(pcm512x->supplies); i++) {
		ret = regulator_register_notifier(pcm512x->supplies[i].consumer,
						  &pcm512x->supply_nb[i]);
		if (ret != 0) {
			dev_err(dev,
				"Failed to register regulator notifier: %d\n",
				ret);
		}
	}

	ret = regulator_bulk_enable(ARRAY_SIZE(pcm512x->supplies),
				    pcm512x->supplies);
	if (ret != 0) {
		dev_err(dev, "Failed to enable supplies: %d\n", ret);
		return ret;
	}

	/* Reset the device, verifying I/O in the process for I2C */
	ret = regmap_write(regmap, PCM512x_RESET,
			   PCM512x_RSTM | PCM512x_RSTR);
	if (ret != 0) {
		dev_err(dev, "Failed to reset device: %d\n", ret);
		goto err;
	}

	ret = regmap_write(regmap, PCM512x_RESET, 0);
	if (ret != 0) {
		dev_err(dev, "Failed to reset device: %d\n", ret);
		goto err;
	}

	pcm512x->sclk = devm_clk_get(dev, NULL);
	if (PTR_ERR(pcm512x->sclk) == -EPROBE_DEFER)
		return -EPROBE_DEFER;
	if (!IS_ERR(pcm512x->sclk)) {
		ret = clk_prepare_enable(pcm512x->sclk);
		if (ret != 0) {
			dev_err(dev, "Failed to enable SCLK: %d\n", ret);
			return ret;
		}
	}

	/* Default to standby mode */
	ret = regmap_update_bits(pcm512x->regmap, PCM512x_POWER,
				 PCM512x_RQST, PCM512x_RQST);
	if (ret != 0) {
		dev_err(dev, "Failed to request standby: %d\n",
			ret);
		goto err_clk;
	}

	pm_runtime_set_active(dev);
	pm_runtime_enable(dev);
	pm_runtime_idle(dev);

#ifdef CONFIG_OF
	if (dev->of_node) {
		const struct device_node *np = dev->of_node;
		u32 val;

		if (of_property_read_u32(np, "pll-in", &val) >= 0) {
			if (val > 6) {
				dev_err(dev, "Invalid pll-in\n");
				ret = -EINVAL;
				goto err_clk;
			}
			pcm512x->pll_in = val;
		}

		if (of_property_read_u32(np, "pll-out", &val) >= 0) {
			if (val > 6) {
				dev_err(dev, "Invalid pll-out\n");
				ret = -EINVAL;
				goto err_clk;
			}
			pcm512x->pll_out = val;
		}

		if (!pcm512x->pll_in != !pcm512x->pll_out) {
			dev_err(dev,
				"Error: both pll-in and pll-out, or none\n");
			ret = -EINVAL;
			goto err_clk;
		}
		if (pcm512x->pll_in && pcm512x->pll_in == pcm512x->pll_out) {
			dev_err(dev, "Error: pll-in == pll-out\n");
			ret = -EINVAL;
			goto err_clk;
		}
	}
#endif

	ret = snd_soc_register_codec(dev, &pcm512x_codec_driver,
				    &pcm512x_dai, 1);
	if (ret != 0) {
		dev_err(dev, "Failed to register CODEC: %d\n", ret);
		goto err_pm;
	}

	return 0;

err_pm:
	pm_runtime_disable(dev);
err_clk:
	if (!IS_ERR(pcm512x->sclk))
		clk_disable_unprepare(pcm512x->sclk);
err:
	regulator_bulk_disable(ARRAY_SIZE(pcm512x->supplies),
				     pcm512x->supplies);
	return ret;
}
Exemple #19
0
static int cs35l34_i2c_probe(struct i2c_client *i2c_client,
			      const struct i2c_device_id *id)
{
	struct cs35l34_private *cs35l34;
	struct cs35l34_platform_data *pdata =
		dev_get_platdata(&i2c_client->dev);
	int i;
	int ret;
	unsigned int devid = 0;
	unsigned int reg;

	cs35l34 = devm_kzalloc(&i2c_client->dev,
			       sizeof(struct cs35l34_private),
			       GFP_KERNEL);
	if (!cs35l34) {
		dev_err(&i2c_client->dev, "could not allocate codec\n");
		return -ENOMEM;
	}

	i2c_set_clientdata(i2c_client, cs35l34);
	cs35l34->regmap = devm_regmap_init_i2c(i2c_client, &cs35l34_regmap);
	if (IS_ERR(cs35l34->regmap)) {
		ret = PTR_ERR(cs35l34->regmap);
		dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret);
		return ret;
	}

	cs35l34->num_core_supplies = ARRAY_SIZE(cs35l34_core_supplies);
	for (i = 0; i < ARRAY_SIZE(cs35l34_core_supplies); i++)
		cs35l34->core_supplies[i].supply = cs35l34_core_supplies[i];

	ret = devm_regulator_bulk_get(&i2c_client->dev,
		cs35l34->num_core_supplies,
		cs35l34->core_supplies);
	if (ret != 0) {
		dev_err(&i2c_client->dev,
			"Failed to request core supplies %d\n", ret);
		return ret;
	}

	ret = regulator_bulk_enable(cs35l34->num_core_supplies,
					cs35l34->core_supplies);
	if (ret != 0) {
		dev_err(&i2c_client->dev,
			"Failed to enable core supplies: %d\n", ret);
		return ret;
	}

	if (pdata) {
		cs35l34->pdata = *pdata;
	} else {
		pdata = devm_kzalloc(&i2c_client->dev,
				sizeof(struct cs35l34_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 = cs35l34_handle_of_data(i2c_client, pdata);
			if (ret != 0)
				return ret;

		}
		cs35l34->pdata = *pdata;
	}

	ret = devm_request_threaded_irq(&i2c_client->dev, i2c_client->irq, NULL,
			cs35l34_irq_thread, IRQF_ONESHOT | IRQF_TRIGGER_LOW,
			"cs35l34", cs35l34);
	if (ret != 0)
		dev_err(&i2c_client->dev, "Failed to request IRQ: %d\n", ret);

	cs35l34->reset_gpio = devm_gpiod_get_optional(&i2c_client->dev,
				"reset-gpios", GPIOD_OUT_LOW);
	if (IS_ERR(cs35l34->reset_gpio))
		return PTR_ERR(cs35l34->reset_gpio);

	gpiod_set_value_cansleep(cs35l34->reset_gpio, 1);

	msleep(CS35L34_START_DELAY);

	ret = regmap_read(cs35l34->regmap, CS35L34_DEVID_AB, &reg);

	devid = (reg & 0xFF) << 12;
	ret = regmap_read(cs35l34->regmap, CS35L34_DEVID_CD, &reg);
	devid |= (reg & 0xFF) << 4;
	ret = regmap_read(cs35l34->regmap, CS35L34_DEVID_E, &reg);
	devid |= (reg & 0xF0) >> 4;

	if (devid != CS35L34_CHIP_ID) {
		dev_err(&i2c_client->dev,
			"CS35l34 Device ID (%X). Expected ID %X\n",
			devid, CS35L34_CHIP_ID);
		ret = -ENODEV;
		goto err_regulator;
	}

	ret = regmap_read(cs35l34->regmap, CS35L34_REV_ID, &reg);
	if (ret < 0) {
		dev_err(&i2c_client->dev, "Get Revision ID failed\n");
		goto err_regulator;
	}

	dev_info(&i2c_client->dev,
		 "Cirrus Logic CS35l34 (%x), Revision: %02X\n", devid,
		reg & 0xFF);

	/* Unmask critical interrupts */
	regmap_update_bits(cs35l34->regmap, CS35L34_INT_MASK_1,
				CS35L34_M_CAL_ERR | CS35L34_M_ALIVE_ERR |
				CS35L34_M_AMP_SHORT | CS35L34_M_OTW |
				CS35L34_M_OTE, 0);
	regmap_update_bits(cs35l34->regmap, CS35L34_INT_MASK_3,
				CS35L34_M_BST_HIGH | CS35L34_M_LBST_SHORT, 0);

	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 =  snd_soc_register_codec(&i2c_client->dev,
			&soc_codec_dev_cs35l34, &cs35l34_dai, 1);
	if (ret < 0) {
		dev_err(&i2c_client->dev,
			"%s: Register codec failed\n", __func__);
		goto err_regulator;
	}

	return 0;

err_regulator:
	regulator_bulk_disable(cs35l34->num_core_supplies,
		cs35l34->core_supplies);

	return ret;
}
Exemple #20
0
/**
 * cs4270_i2c_probe - initialize the I2C interface of the CS4270
 * @i2c_client: the I2C client object
 * @id: the I2C device ID (ignored)
 *
 * This function is called whenever the I2C subsystem finds a device that
 * matches the device ID given via a prior call to i2c_add_driver().
 */
static int cs4270_i2c_probe(struct i2c_client *i2c_client,
	const struct i2c_device_id *id)
{
	struct device_node *np = i2c_client->dev.of_node;
	struct cs4270_private *cs4270;
	unsigned int val;
	int ret, i;

	cs4270 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs4270_private),
			      GFP_KERNEL);
	if (!cs4270) {
		dev_err(&i2c_client->dev, "could not allocate codec\n");
		return -ENOMEM;
	}

	/* get the power supply regulators */
	for (i = 0; i < ARRAY_SIZE(supply_names); i++)
		cs4270->supplies[i].supply = supply_names[i];

	ret = devm_regulator_bulk_get(&i2c_client->dev,
				      ARRAY_SIZE(cs4270->supplies),
				      cs4270->supplies);
	if (ret < 0)
		return ret;

	/* See if we have a way to bring the codec out of reset */
	if (np) {
		enum of_gpio_flags flags;
		int gpio = of_get_named_gpio_flags(np, "reset-gpio", 0, &flags);

		if (gpio_is_valid(gpio)) {
			ret = devm_gpio_request_one(&i2c_client->dev, gpio,
				     flags & OF_GPIO_ACTIVE_LOW ?
					GPIOF_OUT_INIT_LOW : GPIOF_OUT_INIT_HIGH,
				     "cs4270 reset");
			if (ret < 0)
				return ret;
		}
	}

	cs4270->regmap = devm_regmap_init_i2c(i2c_client, &cs4270_regmap);
	if (IS_ERR(cs4270->regmap))
		return PTR_ERR(cs4270->regmap);

	/* Verify that we have a CS4270 */
	ret = regmap_read(cs4270->regmap, CS4270_CHIPID, &val);
	if (ret < 0) {
		dev_err(&i2c_client->dev, "failed to read i2c at addr %X\n",
		       i2c_client->addr);
		return ret;
	}
	/* The top four bits of the chip ID should be 1100. */
	if ((val & 0xF0) != 0xC0) {
		dev_err(&i2c_client->dev, "device at addr %X is not a CS4270\n",
		       i2c_client->addr);
		return -ENODEV;
	}

	dev_info(&i2c_client->dev, "found device at i2c address %X\n",
		i2c_client->addr);
	dev_info(&i2c_client->dev, "hardware revision %X\n", val & 0xF);

	i2c_set_clientdata(i2c_client, cs4270);

	ret = snd_soc_register_codec(&i2c_client->dev,
			&soc_codec_device_cs4270, &cs4270_dai, 1);
	return ret;
}
Exemple #21
0
static int wm0010_spi_probe(struct spi_device *spi)
{
	unsigned long gpio_flags;
	int ret;
	int trigger;
	int irq;
	struct wm0010_priv *wm0010;

	wm0010 = devm_kzalloc(&spi->dev, sizeof(*wm0010),
			      GFP_KERNEL);
	if (!wm0010)
		return -ENOMEM;

	mutex_init(&wm0010->lock);
	spin_lock_init(&wm0010->irq_lock);

	spi_set_drvdata(spi, wm0010);
	wm0010->dev = &spi->dev;

	if (dev_get_platdata(&spi->dev))
		memcpy(&wm0010->pdata, dev_get_platdata(&spi->dev),
		       sizeof(wm0010->pdata));

	init_completion(&wm0010->boot_completion);

	wm0010->core_supplies[0].supply = "AVDD";
	wm0010->core_supplies[1].supply = "DCVDD";
	ret = devm_regulator_bulk_get(wm0010->dev, ARRAY_SIZE(wm0010->core_supplies),
				      wm0010->core_supplies);
	if (ret != 0) {
		dev_err(wm0010->dev, "Failed to obtain core supplies: %d\n",
			ret);
		return ret;
	}

	wm0010->dbvdd = devm_regulator_get(wm0010->dev, "DBVDD");
	if (IS_ERR(wm0010->dbvdd)) {
		ret = PTR_ERR(wm0010->dbvdd);
		dev_err(wm0010->dev, "Failed to obtain DBVDD: %d\n", ret);
		return ret;
	}

	if (wm0010->pdata.gpio_reset) {
		wm0010->gpio_reset = wm0010->pdata.gpio_reset;

		if (wm0010->pdata.reset_active_high)
			wm0010->gpio_reset_value = 1;
		else
			wm0010->gpio_reset_value = 0;

		if (wm0010->gpio_reset_value)
			gpio_flags = GPIOF_OUT_INIT_HIGH;
		else
			gpio_flags = GPIOF_OUT_INIT_LOW;

		ret = devm_gpio_request_one(wm0010->dev, wm0010->gpio_reset,
					    gpio_flags, "wm0010 reset");
		if (ret < 0) {
			dev_err(wm0010->dev,
				"Failed to request GPIO for DSP reset: %d\n",
				ret);
			return ret;
		}
	} else {
		dev_err(wm0010->dev, "No reset GPIO configured\n");
		return -EINVAL;
	}

	wm0010->state = WM0010_POWER_OFF;

	irq = spi->irq;
	if (wm0010->pdata.irq_flags)
		trigger = wm0010->pdata.irq_flags;
	else
		trigger = IRQF_TRIGGER_FALLING;
	trigger |= IRQF_ONESHOT;

	ret = request_threaded_irq(irq, NULL, wm0010_irq, trigger | IRQF_ONESHOT,
				   "wm0010", wm0010);
	if (ret) {
		dev_err(wm0010->dev, "Failed to request IRQ %d: %d\n",
			irq, ret);
		return ret;
	}
	wm0010->irq = irq;

	ret = irq_set_irq_wake(irq, 1);
	if (ret) {
		dev_err(wm0010->dev, "Failed to set IRQ %d as wake source: %d\n",
			irq, ret);
		return ret;
	}

	if (spi->max_speed_hz)
		wm0010->board_max_spi_speed = spi->max_speed_hz;
	else
		wm0010->board_max_spi_speed = 0;

	ret = snd_soc_register_codec(&spi->dev,
				     &soc_codec_dev_wm0010, wm0010_dai,
				     ARRAY_SIZE(wm0010_dai));
	if (ret < 0)
		return ret;

	return 0;
}
Exemple #22
0
static int sta32x_i2c_probe(struct i2c_client *i2c,
                            const struct i2c_device_id *id)
{
    struct device *dev = &i2c->dev;
    struct sta32x_priv *sta32x;
    int ret, i;

    sta32x = devm_kzalloc(&i2c->dev, sizeof(struct sta32x_priv),
                          GFP_KERNEL);
    if (!sta32x)
        return -ENOMEM;

    mutex_init(&sta32x->coeff_lock);
    sta32x->pdata = dev_get_platdata(dev);

#ifdef CONFIG_OF
    if (dev->of_node) {
        ret = sta32x_probe_dt(dev, sta32x);
        if (ret < 0)
            return ret;
    }
#endif

    /* GPIOs */
    sta32x->gpiod_nreset = devm_gpiod_get(dev, "reset");
    if (IS_ERR(sta32x->gpiod_nreset)) {
        ret = PTR_ERR(sta32x->gpiod_nreset);
        if (ret != -ENOENT && ret != -ENOSYS)
            return ret;

        sta32x->gpiod_nreset = NULL;
    } else {
        gpiod_direction_output(sta32x->gpiod_nreset, 0);
    }

    /* regulators */
    for (i = 0; i < ARRAY_SIZE(sta32x->supplies); i++)
        sta32x->supplies[i].supply = sta32x_supply_names[i];

    ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(sta32x->supplies),
                                  sta32x->supplies);
    if (ret != 0) {
        dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret);
        return ret;
    }

    sta32x->regmap = devm_regmap_init_i2c(i2c, &sta32x_regmap);
    if (IS_ERR(sta32x->regmap)) {
        ret = PTR_ERR(sta32x->regmap);
        dev_err(dev, "Failed to init regmap: %d\n", ret);
        return ret;
    }

    i2c_set_clientdata(i2c, sta32x);

    ret = snd_soc_register_codec(dev, &sta32x_codec, &sta32x_dai, 1);
    if (ret < 0)
        dev_err(dev, "Failed to register codec (%d)\n", ret);

    return ret;
}
static int bh1770_probe(struct i2c_client *client,
				const struct i2c_device_id *id)
{
	struct bh1770_chip *chip;
	int err;

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

	i2c_set_clientdata(client, chip);
	chip->client  = client;

	mutex_init(&chip->mutex);
	init_waitqueue_head(&chip->wait);
	INIT_DELAYED_WORK(&chip->prox_work, bh1770_prox_work);

	if (client->dev.platform_data == NULL) {
		dev_err(&client->dev, "platform data is mandatory\n");
		return -EINVAL;
	}

	chip->pdata		= client->dev.platform_data;
	chip->lux_calib		= BH1770_LUX_NEUTRAL_CALIB_VALUE;
	chip->lux_rate_index	= BH1770_LUX_DEFAULT_RATE;
	chip->lux_threshold_lo	= BH1770_LUX_DEF_THRES;
	chip->lux_threshold_hi	= BH1770_LUX_DEF_THRES;

	if (chip->pdata->glass_attenuation == 0)
		chip->lux_ga = BH1770_NEUTRAL_GA;
	else
		chip->lux_ga = chip->pdata->glass_attenuation;

	chip->prox_threshold	= BH1770_PROX_DEF_THRES;
	chip->prox_led		= chip->pdata->led_def_curr;
	chip->prox_abs_thres	= BH1770_PROX_DEF_ABS_THRES;
	chip->prox_persistence	= BH1770_DEFAULT_PERSISTENCE;
	chip->prox_rate_threshold = BH1770_PROX_DEF_RATE_THRESH;
	chip->prox_rate		= BH1770_PROX_DEFAULT_RATE;
	chip->prox_data		= 0;

	chip->regs[0].supply = reg_vcc;
	chip->regs[1].supply = reg_vleds;

	err = devm_regulator_bulk_get(&client->dev,
				      ARRAY_SIZE(chip->regs), chip->regs);
	if (err < 0) {
		dev_err(&client->dev, "Cannot get regulators\n");
		return err;
	}

	err = regulator_bulk_enable(ARRAY_SIZE(chip->regs),
				chip->regs);
	if (err < 0) {
		dev_err(&client->dev, "Cannot enable regulators\n");
		return err;
	}

	usleep_range(BH1770_STARTUP_DELAY, BH1770_STARTUP_DELAY * 2);
	err = bh1770_detect(chip);
	if (err < 0)
		goto fail0;

	/* Start chip */
	bh1770_chip_on(chip);
	pm_runtime_set_active(&client->dev);
	pm_runtime_enable(&client->dev);

	chip->lux_corr = bh1770_get_corr_value(chip);
	if (chip->lux_corr == 0) {
		dev_err(&client->dev, "Improper correction values\n");
		err = -EINVAL;
		goto fail0;
	}

	if (chip->pdata->setup_resources) {
		err = chip->pdata->setup_resources();
		if (err) {
			err = -EINVAL;
			goto fail0;
		}
	}

	err = sysfs_create_group(&chip->client->dev.kobj,
				&bh1770_attribute_group);
	if (err < 0) {
		dev_err(&chip->client->dev, "Sysfs registration failed\n");
		goto fail1;
	}

	/*
	 * Chip needs level triggered interrupt to work. However,
	 * level triggering doesn't work always correctly with power
	 * management. Select both
	 */
	err = request_threaded_irq(client->irq, NULL,
				bh1770_irq,
				IRQF_TRIGGER_FALLING | IRQF_ONESHOT |
				IRQF_TRIGGER_LOW,
				"bh1770", chip);
	if (err) {
		dev_err(&client->dev, "could not get IRQ %d\n",
			client->irq);
		goto fail2;
	}
	regulator_bulk_disable(ARRAY_SIZE(chip->regs), chip->regs);
	return err;
fail2:
	sysfs_remove_group(&chip->client->dev.kobj,
			&bh1770_attribute_group);
fail1:
	if (chip->pdata->release_resources)
		chip->pdata->release_resources();
fail0:
	regulator_bulk_disable(ARRAY_SIZE(chip->regs), chip->regs);
	return err;
}
static int stm32_usbphyc_probe(struct platform_device *pdev)
{
	struct stm32_usbphyc *usbphyc;
	struct device *dev = &pdev->dev;
	struct device_node *child, *np = dev->of_node;
	struct resource *res;
	struct phy_provider *phy_provider;
	u32 version;
	int ret, port = 0;

	usbphyc = devm_kzalloc(dev, sizeof(*usbphyc), GFP_KERNEL);
	if (!usbphyc)
		return -ENOMEM;
	usbphyc->dev = dev;
	dev_set_drvdata(dev, usbphyc);

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	usbphyc->base = devm_ioremap_resource(dev, res);
	if (IS_ERR(usbphyc->base))
		return PTR_ERR(usbphyc->base);

	usbphyc->clk = devm_clk_get(dev, 0);
	if (IS_ERR(usbphyc->clk)) {
		ret = PTR_ERR(usbphyc->clk);
		dev_err(dev, "clk get failed: %d\n", ret);
		return ret;
	}

	ret = clk_prepare_enable(usbphyc->clk);
	if (ret) {
		dev_err(dev, "clk enable failed: %d\n", ret);
		return ret;
	}

	usbphyc->rst = devm_reset_control_get(dev, 0);
	if (!IS_ERR(usbphyc->rst)) {
		reset_control_assert(usbphyc->rst);
		udelay(2);
		reset_control_deassert(usbphyc->rst);
	}

	usbphyc->switch_setup = -EINVAL;
	usbphyc->nphys = of_get_child_count(np);
	usbphyc->phys = devm_kcalloc(dev, usbphyc->nphys,
				     sizeof(*usbphyc->phys), GFP_KERNEL);
	if (!usbphyc->phys) {
		ret = -ENOMEM;
		goto clk_disable;
	}

	for_each_child_of_node(np, child) {
		struct stm32_usbphyc_phy *usbphyc_phy;
		struct phy *phy;
		u32 index;
		int i;

		phy = devm_phy_create(dev, child, &stm32_usbphyc_phy_ops);
		if (IS_ERR(phy)) {
			ret = PTR_ERR(phy);
			if (ret != -EPROBE_DEFER)
				dev_err(dev, "failed to create phy%d: %d\n",
					port, ret);
			goto put_child;
		}

		usbphyc_phy = devm_kzalloc(dev, sizeof(*usbphyc_phy),
					   GFP_KERNEL);
		if (!usbphyc_phy) {
			ret = -ENOMEM;
			goto put_child;
		}

		for (i = 0; i < NUM_SUPPLIES; i++)
			usbphyc_phy->supplies[i].supply = supplies_names[i];

		ret = devm_regulator_bulk_get(&phy->dev, NUM_SUPPLIES,
					      usbphyc_phy->supplies);
		if (ret) {
			if (ret != -EPROBE_DEFER)
				dev_err(&phy->dev,
					"failed to get regulators: %d\n", ret);
			goto put_child;
		}

		ret = of_property_read_u32(child, "reg", &index);
		if (ret || index > usbphyc->nphys) {
			dev_err(&phy->dev, "invalid reg property: %d\n", ret);
			goto put_child;
		}

		usbphyc->phys[port] = usbphyc_phy;
		phy_set_bus_width(phy, 8);
		phy_set_drvdata(phy, usbphyc_phy);

		usbphyc->phys[port]->phy = phy;
		usbphyc->phys[port]->usbphyc = usbphyc;
		usbphyc->phys[port]->index = index;
		usbphyc->phys[port]->active = false;

		port++;
	}

	phy_provider = devm_of_phy_provider_register(dev,
						     stm32_usbphyc_of_xlate);
	if (IS_ERR(phy_provider)) {
		ret = PTR_ERR(phy_provider);
		dev_err(dev, "failed to register phy provider: %d\n", ret);
		goto clk_disable;
	}

	version = readl_relaxed(usbphyc->base + STM32_USBPHYC_VERSION);
	dev_info(dev, "registered rev:%lu.%lu\n",
		 FIELD_GET(MAJREV, version), FIELD_GET(MINREV, version));

	return 0;

put_child:
	of_node_put(child);
clk_disable:
	clk_disable_unprepare(usbphyc->clk);

	return ret;
}
static int msm_otg_probe(struct platform_device *pdev)
{
	struct regulator_bulk_data regs[3];
	int ret = 0;
	struct device_node *np = pdev->dev.of_node;
	struct msm_otg_platform_data *pdata;
	struct resource *res;
	struct msm_otg *motg;
	struct usb_phy *phy;
	void __iomem *phy_select;

	motg = devm_kzalloc(&pdev->dev, sizeof(struct msm_otg), GFP_KERNEL);
	if (!motg) {
		dev_err(&pdev->dev, "unable to allocate msm_otg\n");
		return -ENOMEM;
	}

	pdata = dev_get_platdata(&pdev->dev);
	if (!pdata) {
		if (!np)
			return -ENXIO;
		ret = msm_otg_read_dt(pdev, motg);
		if (ret)
			return ret;
	}

	motg->phy.otg = devm_kzalloc(&pdev->dev, sizeof(struct usb_otg),
				     GFP_KERNEL);
	if (!motg->phy.otg) {
		dev_err(&pdev->dev, "unable to allocate msm_otg\n");
		return -ENOMEM;
	}

	phy = &motg->phy;
	phy->dev = &pdev->dev;

	motg->phy_reset_clk = devm_clk_get(&pdev->dev,
					   np ? "phy" : "usb_phy_clk");
	if (IS_ERR(motg->phy_reset_clk)) {
		dev_err(&pdev->dev, "failed to get usb_phy_clk\n");
		return PTR_ERR(motg->phy_reset_clk);
	}

	motg->clk = devm_clk_get(&pdev->dev, np ? "core" : "usb_hs_clk");
	if (IS_ERR(motg->clk)) {
		dev_err(&pdev->dev, "failed to get usb_hs_clk\n");
		return PTR_ERR(motg->clk);
	}

	/*
	 * If USB Core is running its protocol engine based on CORE CLK,
	 * CORE CLK  must be running at >55Mhz for correct HSUSB
	 * operation and USB core cannot tolerate frequency changes on
	 * CORE CLK.
	 */
	motg->pclk = devm_clk_get(&pdev->dev, np ? "iface" : "usb_hs_pclk");
	if (IS_ERR(motg->pclk)) {
		dev_err(&pdev->dev, "failed to get usb_hs_pclk\n");
		return PTR_ERR(motg->pclk);
	}

	/*
	 * USB core clock is not present on all MSM chips. This
	 * clock is introduced to remove the dependency on AXI
	 * bus frequency.
	 */
	motg->core_clk = devm_clk_get(&pdev->dev,
				      np ? "alt_core" : "usb_hs_core_clk");

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	motg->regs = devm_ioremap_resource(&pdev->dev, res);
	if (IS_ERR(motg->regs))
		return PTR_ERR(motg->regs);

	/*
	 * NOTE: The PHYs can be multiplexed between the chipidea controller
	 * and the dwc3 controller, using a single bit. It is important that
	 * the dwc3 driver does not set this bit in an incompatible way.
	 */
	if (motg->phy_number) {
		phy_select = devm_ioremap_nocache(&pdev->dev, USB2_PHY_SEL, 4);
		if (IS_ERR(phy_select))
			return PTR_ERR(phy_select);
		/* Enable second PHY with the OTG port */
		writel(0x1, phy_select);
	}

	dev_info(&pdev->dev, "OTG regs = %p\n", motg->regs);

	motg->irq = platform_get_irq(pdev, 0);
	if (motg->irq < 0) {
		dev_err(&pdev->dev, "platform_get_irq failed\n");
		return motg->irq;
	}

	regs[0].supply = "vddcx";
	regs[1].supply = "v3p3";
	regs[2].supply = "v1p8";

	ret = devm_regulator_bulk_get(motg->phy.dev, ARRAY_SIZE(regs), regs);
	if (ret)
		return ret;

	motg->vddcx = regs[0].consumer;
	motg->v3p3  = regs[1].consumer;
	motg->v1p8  = regs[2].consumer;

	clk_set_rate(motg->clk, 60000000);

	clk_prepare_enable(motg->clk);
	clk_prepare_enable(motg->pclk);

	if (!IS_ERR(motg->core_clk))
		clk_prepare_enable(motg->core_clk);

	ret = msm_hsusb_init_vddcx(motg, 1);
	if (ret) {
		dev_err(&pdev->dev, "hsusb vddcx configuration failed\n");
		goto disable_clks;
	}

	ret = msm_hsusb_ldo_init(motg, 1);
	if (ret) {
		dev_err(&pdev->dev, "hsusb vreg configuration failed\n");
		goto disable_vddcx;
	}
	ret = msm_hsusb_ldo_set_mode(motg, 1);
	if (ret) {
		dev_err(&pdev->dev, "hsusb vreg enable failed\n");
		goto disable_ldo;
	}

	writel(0, USB_USBINTR);
	writel(0, USB_OTGSC);

	INIT_WORK(&motg->sm_work, msm_otg_sm_work);
	INIT_DELAYED_WORK(&motg->chg_work, msm_chg_detect_work);
	ret = devm_request_irq(&pdev->dev, motg->irq, msm_otg_irq, IRQF_SHARED,
					"msm_otg", motg);
	if (ret) {
		dev_err(&pdev->dev, "request irq failed\n");
		goto disable_ldo;
	}

	phy->init = msm_phy_init;
	phy->set_power = msm_otg_set_power;
	phy->notify_disconnect = msm_phy_notify_disconnect;
	phy->type = USB_PHY_TYPE_USB2;

	phy->io_ops = &msm_otg_io_ops;

	phy->otg->phy = &motg->phy;
	phy->otg->set_host = msm_otg_set_host;
	phy->otg->set_peripheral = msm_otg_set_peripheral;

	msm_usb_reset(phy);

	ret = usb_add_phy_dev(&motg->phy);
	if (ret) {
		dev_err(&pdev->dev, "usb_add_phy failed\n");
		goto disable_ldo;
	}

	platform_set_drvdata(pdev, motg);
	device_init_wakeup(&pdev->dev, 1);

	if (motg->pdata->mode == USB_DR_MODE_OTG &&
		motg->pdata->otg_control == OTG_USER_CONTROL) {
		ret = msm_otg_debugfs_init(motg);
		if (ret)
			dev_dbg(&pdev->dev, "Can not create mode change file\n");
	}

	pm_runtime_set_active(&pdev->dev);
	pm_runtime_enable(&pdev->dev);

	return 0;

disable_ldo:
	msm_hsusb_ldo_init(motg, 0);
disable_vddcx:
	msm_hsusb_init_vddcx(motg, 0);
disable_clks:
	clk_disable_unprepare(motg->pclk);
	clk_disable_unprepare(motg->clk);
	if (!IS_ERR(motg->core_clk))
		clk_disable_unprepare(motg->core_clk);
	return ret;
}
Exemple #26
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;
	}

	if (cs35l33->reset_gpio)
		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 =  snd_soc_register_codec(&i2c_client->dev,
			&soc_codec_dev_cs35l33, &cs35l33_dai, 1);
	if (ret < 0) {
		dev_err(&i2c_client->dev, "%s: Register codec failed\n",
			__func__);
		goto err_enable;
	}

	return 0;

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

	return ret;
}