diff options
Diffstat (limited to 'drivers/iio/health/afe4403.c')
| -rw-r--r-- | drivers/iio/health/afe4403.c | 79 |
1 files changed, 30 insertions, 49 deletions
diff --git a/drivers/iio/health/afe4403.c b/drivers/iio/health/afe4403.c index df3bc5c3d378..13e1dd4dd62c 100644 --- a/drivers/iio/health/afe4403.c +++ b/drivers/iio/health/afe4403.c @@ -23,7 +23,7 @@ #include <linux/iio/triggered_buffer.h> #include <linux/iio/trigger_consumer.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include "afe440x.h" @@ -321,8 +321,7 @@ static irqreturn_t afe4403_trigger_handler(int irq, void *private) if (ret) goto err; - for_each_set_bit(bit, indio_dev->active_scan_mask, - indio_dev->masklength) { + iio_for_each_active_channel(indio_dev, bit) { ret = spi_write_then_read(afe->spi, &afe4403_channel_values[bit], 1, rx, sizeof(rx)); @@ -346,6 +345,13 @@ err: return IRQ_HANDLED; } +static void afe4403_regulator_disable(void *data) +{ + struct regulator *regulator = data; + + regulator_disable(regulator); +} + #define AFE4403_TIMING_PAIRS \ { AFE440X_LED2STC, 0x000050 }, \ { AFE440X_LED2ENDC, 0x0003e7 }, \ @@ -415,9 +421,8 @@ static int afe4403_suspend(struct device *dev) struct afe4403_data *afe = iio_priv(indio_dev); int ret; - ret = regmap_update_bits(afe->regmap, AFE440X_CONTROL2, - AFE440X_CONTROL2_PDN_AFE, - AFE440X_CONTROL2_PDN_AFE); + ret = regmap_set_bits(afe->regmap, AFE440X_CONTROL2, + AFE440X_CONTROL2_PDN_AFE); if (ret) return ret; @@ -442,8 +447,8 @@ static int afe4403_resume(struct device *dev) return ret; } - ret = regmap_update_bits(afe->regmap, AFE440X_CONTROL2, - AFE440X_CONTROL2_PDN_AFE, 0); + ret = regmap_clear_bits(afe->regmap, AFE440X_CONTROL2, + AFE440X_CONTROL2_PDN_AFE); if (ret) return ret; @@ -495,19 +500,24 @@ static int afe4403_probe(struct spi_device *spi) dev_err(afe->dev, "Unable to enable regulator\n"); return ret; } + ret = devm_add_action_or_reset(afe->dev, afe4403_regulator_disable, afe->regulator); + if (ret) { + dev_err(afe->dev, "Unable to add regulator disable action\n"); + return ret; + } ret = regmap_write(afe->regmap, AFE440X_CONTROL0, AFE440X_CONTROL0_SW_RESET); if (ret) { dev_err(afe->dev, "Unable to reset device\n"); - goto err_disable_reg; + return ret; } ret = regmap_multi_reg_write(afe->regmap, afe4403_reg_sequences, ARRAY_SIZE(afe4403_reg_sequences)); if (ret) { dev_err(afe->dev, "Unable to set register defaults\n"); - goto err_disable_reg; + return ret; } indio_dev->modes = INDIO_DIRECT_MODE; @@ -523,16 +533,15 @@ static int afe4403_probe(struct spi_device *spi) iio_device_id(indio_dev)); if (!afe->trig) { dev_err(afe->dev, "Unable to allocate IIO trigger\n"); - ret = -ENOMEM; - goto err_disable_reg; + return -ENOMEM; } iio_trigger_set_drvdata(afe->trig, indio_dev); - ret = iio_trigger_register(afe->trig); + ret = devm_iio_trigger_register(afe->dev, afe->trig); if (ret) { dev_err(afe->dev, "Unable to register IIO trigger\n"); - goto err_disable_reg; + return ret; } ret = devm_request_threaded_irq(afe->dev, afe->irq, @@ -542,52 +551,25 @@ static int afe4403_probe(struct spi_device *spi) afe->trig); if (ret) { dev_err(afe->dev, "Unable to request IRQ\n"); - goto err_trig; + return ret; } } - ret = iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time, - afe4403_trigger_handler, NULL); + ret = devm_iio_triggered_buffer_setup(afe->dev, indio_dev, + &iio_pollfunc_store_time, + afe4403_trigger_handler, NULL); if (ret) { dev_err(afe->dev, "Unable to setup buffer\n"); - goto err_trig; + return ret; } - ret = iio_device_register(indio_dev); + ret = devm_iio_device_register(afe->dev, indio_dev); if (ret) { dev_err(afe->dev, "Unable to register IIO device\n"); - goto err_buff; + return ret; } return 0; - -err_buff: - iio_triggered_buffer_cleanup(indio_dev); -err_trig: - if (afe->irq > 0) - iio_trigger_unregister(afe->trig); -err_disable_reg: - regulator_disable(afe->regulator); - - return ret; -} - -static void afe4403_remove(struct spi_device *spi) -{ - struct iio_dev *indio_dev = spi_get_drvdata(spi); - struct afe4403_data *afe = iio_priv(indio_dev); - int ret; - - iio_device_unregister(indio_dev); - - iio_triggered_buffer_cleanup(indio_dev); - - if (afe->irq > 0) - iio_trigger_unregister(afe->trig); - - ret = regulator_disable(afe->regulator); - if (ret) - dev_warn(afe->dev, "Unable to disable regulator\n"); } static const struct spi_device_id afe4403_ids[] = { @@ -603,7 +585,6 @@ static struct spi_driver afe4403_spi_driver = { .pm = pm_sleep_ptr(&afe4403_pm_ops), }, .probe = afe4403_probe, - .remove = afe4403_remove, .id_table = afe4403_ids, }; module_spi_driver(afe4403_spi_driver); |