+ for (i = 0; i < ARRAY_SIZE(wm5100->core_supplies); i++)
+ wm5100->core_supplies[i].supply = wm5100_core_supply_names[i];
+
+ ret = regulator_bulk_get(&i2c->dev, ARRAY_SIZE(wm5100->core_supplies),
+ wm5100->core_supplies);
+ if (ret != 0) {
+ dev_err(&i2c->dev, "Failed to request core supplies: %d\n",
+ ret);
+ goto err_regmap;
+ }
+
+ wm5100->cpvdd = regulator_get(&i2c->dev, "CPVDD");
+ if (IS_ERR(wm5100->cpvdd)) {
+ ret = PTR_ERR(wm5100->cpvdd);
+ dev_err(&i2c->dev, "Failed to get CPVDD: %d\n", ret);
+ goto err_core;
+ }
+
+ wm5100->dbvdd2 = regulator_get(&i2c->dev, "DBVDD2");
+ if (IS_ERR(wm5100->dbvdd2)) {
+ ret = PTR_ERR(wm5100->dbvdd2);
+ dev_err(&i2c->dev, "Failed to get DBVDD2: %d\n", ret);
+ goto err_cpvdd;
+ }
+
+ wm5100->dbvdd3 = regulator_get(&i2c->dev, "DBVDD3");
+ if (IS_ERR(wm5100->dbvdd3)) {
+ ret = PTR_ERR(wm5100->dbvdd3);
+ dev_err(&i2c->dev, "Failed to get DBVDD2: %d\n", ret);
+ goto err_dbvdd2;
+ }
+
+ ret = regulator_bulk_enable(ARRAY_SIZE(wm5100->core_supplies),
+ wm5100->core_supplies);
+ if (ret != 0) {
+ dev_err(&i2c->dev, "Failed to enable core supplies: %d\n",
+ ret);
+ goto err_dbvdd3;
+ }
+
+ if (wm5100->pdata.ldo_ena) {
+ ret = gpio_request_one(wm5100->pdata.ldo_ena,
+ GPIOF_OUT_INIT_HIGH, "WM5100 LDOENA");
+ if (ret < 0) {
+ dev_err(&i2c->dev, "Failed to request LDOENA %d: %d\n",
+ wm5100->pdata.ldo_ena, ret);
+ goto err_enable;
+ }
+ msleep(2);
+ }
+
+ if (wm5100->pdata.reset) {
+ ret = gpio_request_one(wm5100->pdata.reset,
+ GPIOF_OUT_INIT_HIGH, "WM5100 /RESET");
+ if (ret < 0) {
+ dev_err(&i2c->dev, "Failed to request /RESET %d: %d\n",
+ wm5100->pdata.reset, ret);
+ goto err_ldo;
+ }
+ }
+
+ ret = regmap_read(wm5100->regmap, WM5100_SOFTWARE_RESET, ®);
+ if (ret < 0) {
+ dev_err(&i2c->dev, "Failed to read ID register\n");
+ goto err_reset;
+ }
+ switch (reg) {
+ case 0x8997:
+ case 0x5100:
+ break;
+
+ default:
+ dev_err(&i2c->dev, "Device is not a WM5100, ID is %x\n", reg);
+ ret = -EINVAL;
+ goto err_reset;
+ }
+
+ ret = regmap_read(wm5100->regmap, WM5100_DEVICE_REVISION, ®);
+ if (ret < 0) {
+ dev_err(&i2c->dev, "Failed to read revision register\n");
+ goto err_reset;
+ }
+ wm5100->rev = reg & WM5100_DEVICE_REVISION_MASK;
+
+ dev_info(&i2c->dev, "revision %c\n", wm5100->rev + 'A');
+
+ ret = wm5100_reset(wm5100);
+ if (ret < 0) {
+ dev_err(&i2c->dev, "Failed to issue reset\n");
+ goto err_reset;
+ }
+
+ wm5100_init_gpio(i2c);
+
+ for (i = 0; i < ARRAY_SIZE(wm5100->pdata.gpio_defaults); i++) {
+ if (!wm5100->pdata.gpio_defaults[i])
+ continue;
+
+ regmap_write(wm5100->regmap, WM5100_GPIO_CTRL_1 + i,
+ wm5100->pdata.gpio_defaults[i]);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(wm5100->pdata.in_mode); i++) {
+ regmap_update_bits(wm5100->regmap, wm5100_mic_ctrl_reg[i],
+ WM5100_IN1_MODE_MASK |
+ WM5100_IN1_DMIC_SUP_MASK,
+ (wm5100->pdata.in_mode[i] <<
+ WM5100_IN1_MODE_SHIFT) |
+ (wm5100->pdata.dmic_sup[i] <<
+ WM5100_IN1_DMIC_SUP_SHIFT));
+ }
+