diff --git a/drivers/iio/frequency/adf4350.c b/drivers/iio/frequency/adf4350.c index 85e289700c3c..4abf80f75ef5 100644 --- a/drivers/iio/frequency/adf4350.c +++ b/drivers/iio/frequency/adf4350.c @@ -33,7 +33,6 @@ enum { struct adf4350_state { struct spi_device *spi; - struct regulator *reg; struct gpio_desc *lock_detect_gpiod; struct adf4350_platform_data *pdata; struct clk *clk; @@ -469,6 +468,15 @@ static struct adf4350_platform_data *adf4350_parse_dt(struct device *dev) return pdata; } +static void adf4350_power_down(void *data) +{ + struct iio_dev *indio_dev = data; + struct adf4350_state *st = iio_priv(indio_dev); + + st->regs[ADF4350_REG2] |= ADF4350_REG2_POWER_DOWN_EN; + adf4350_sync_config(st); +} + static int adf4350_probe(struct spi_device *spi) { struct adf4350_platform_data *pdata; @@ -491,31 +499,21 @@ static int adf4350_probe(struct spi_device *spi) } if (!pdata->clkin) { - clk = devm_clk_get(&spi->dev, "clkin"); + clk = devm_clk_get_enabled(&spi->dev, "clkin"); if (IS_ERR(clk)) - return -EPROBE_DEFER; - - ret = clk_prepare_enable(clk); - if (ret < 0) - return ret; + return PTR_ERR(clk); } indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); - if (indio_dev == NULL) { - ret = -ENOMEM; - goto error_disable_clk; - } + if (indio_dev == NULL) + return -ENOMEM; st = iio_priv(indio_dev); - st->reg = devm_regulator_get(&spi->dev, "vcc"); - if (!IS_ERR(st->reg)) { - ret = regulator_enable(st->reg); - if (ret) - goto error_disable_clk; - } + ret = devm_regulator_get_enable(&spi->dev, "vcc"); + if (ret) + return ret; - spi_set_drvdata(spi, indio_dev); st->spi = spi; st->pdata = pdata; @@ -544,47 +542,21 @@ static int adf4350_probe(struct spi_device *spi) st->lock_detect_gpiod = devm_gpiod_get_optional(&spi->dev, NULL, GPIOD_IN); - if (IS_ERR(st->lock_detect_gpiod)) { - ret = PTR_ERR(st->lock_detect_gpiod); - goto error_disable_reg; - } + if (IS_ERR(st->lock_detect_gpiod)) + return PTR_ERR(st->lock_detect_gpiod); if (pdata->power_up_frequency) { ret = adf4350_set_freq(st, pdata->power_up_frequency); if (ret) - goto error_disable_reg; + return ret; } - ret = iio_device_register(indio_dev); + ret = devm_add_action_or_reset(&spi->dev, adf4350_power_down, indio_dev); if (ret) - goto error_disable_reg; + return dev_err_probe(&spi->dev, ret, + "Failed to add action to managed power down\n"); - return 0; - -error_disable_reg: - if (!IS_ERR(st->reg)) - regulator_disable(st->reg); -error_disable_clk: - clk_disable_unprepare(clk); - - return ret; -} - -static void adf4350_remove(struct spi_device *spi) -{ - struct iio_dev *indio_dev = spi_get_drvdata(spi); - struct adf4350_state *st = iio_priv(indio_dev); - struct regulator *reg = st->reg; - - st->regs[ADF4350_REG2] |= ADF4350_REG2_POWER_DOWN_EN; - adf4350_sync_config(st); - - iio_device_unregister(indio_dev); - - clk_disable_unprepare(st->clk); - - if (!IS_ERR(reg)) - regulator_disable(reg); + return devm_iio_device_register(&spi->dev, indio_dev); } static const struct of_device_id adf4350_of_match[] = { @@ -607,7 +579,6 @@ static struct spi_driver adf4350_driver = { .of_match_table = adf4350_of_match, }, .probe = adf4350_probe, - .remove = adf4350_remove, .id_table = adf4350_id, }; module_spi_driver(adf4350_driver);