diff options
| -rw-r--r-- | drivers/iio/adc/ad7779.c | 86 |
1 files changed, 46 insertions, 40 deletions
diff --git a/drivers/iio/adc/ad7779.c b/drivers/iio/adc/ad7779.c index 845adc510239..4e6fa6370593 100644 --- a/drivers/iio/adc/ad7779.c +++ b/drivers/iio/adc/ad7779.c @@ -752,6 +752,51 @@ static int ad7779_conf(struct ad7779_state *st, struct gpio_desc *start_gpio) return 0; } +static int ad7779_setup_without_backend(struct ad7779_state *st, struct iio_dev *indio_dev) +{ + int ret; + struct device *dev = &st->spi->dev; + + indio_dev->info = &ad7779_info; + indio_dev->channels = st->chip_info->channels; + indio_dev->num_channels = ARRAY_SIZE(ad7779_channels); + + st->trig = devm_iio_trigger_alloc(dev, "%s-dev%d", indio_dev->name, + iio_device_id(indio_dev)); + if (!st->trig) + return -ENOMEM; + + st->trig->ops = &ad7779_trigger_ops; + + iio_trigger_set_drvdata(st->trig, st); + + ret = devm_request_irq(dev, st->spi->irq, iio_trigger_generic_data_rdy_poll, + IRQF_ONESHOT | IRQF_NO_AUTOEN, indio_dev->name, + st->trig); + if (ret) + return dev_err_probe(dev, ret, "request IRQ %d failed\n", + st->spi->irq); + + ret = devm_iio_trigger_register(dev, st->trig); + if (ret) + return ret; + + indio_dev->trig = iio_trigger_get(st->trig); + + init_completion(&st->completion); + + ret = devm_iio_triggered_buffer_setup(dev, indio_dev, + &iio_pollfunc_store_time, + &ad7779_trigger_handler, + &ad7779_buffer_setup_ops); + if (ret) + return ret; + + return ad7779_spi_write_mask(st, AD7779_REG_DOUT_FORMAT, + AD7779_DCLK_CLK_DIV_MSK, + FIELD_PREP(AD7779_DCLK_CLK_DIV_MSK, 7)); +} + static int ad7779_probe(struct spi_device *spi) { struct iio_dev *indio_dev; @@ -760,9 +805,6 @@ static int ad7779_probe(struct spi_device *spi) struct device *dev = &spi->dev; int ret = -EINVAL; - if (!spi->irq) - return dev_err_probe(dev, ret, "DRDY irq not present\n"); - indio_dev = devm_iio_device_alloc(dev, sizeof(*st)); if (!indio_dev) return -ENOMEM; @@ -804,45 +846,9 @@ static int ad7779_probe(struct spi_device *spi) return ret; indio_dev->name = st->chip_info->name; - indio_dev->info = &ad7779_info; indio_dev->modes = INDIO_DIRECT_MODE; - indio_dev->channels = st->chip_info->channels; - indio_dev->num_channels = ARRAY_SIZE(ad7779_channels); - - st->trig = devm_iio_trigger_alloc(dev, "%s-dev%d", indio_dev->name, - iio_device_id(indio_dev)); - if (!st->trig) - return -ENOMEM; - st->trig->ops = &ad7779_trigger_ops; - - iio_trigger_set_drvdata(st->trig, st); - - ret = devm_request_irq(dev, spi->irq, iio_trigger_generic_data_rdy_poll, - IRQF_ONESHOT | IRQF_NO_AUTOEN, indio_dev->name, - st->trig); - if (ret) - return dev_err_probe(dev, ret, "request IRQ %d failed\n", - st->spi->irq); - - ret = devm_iio_trigger_register(dev, st->trig); - if (ret) - return ret; - - indio_dev->trig = iio_trigger_get(st->trig); - - init_completion(&st->completion); - - ret = devm_iio_triggered_buffer_setup(dev, indio_dev, - &iio_pollfunc_store_time, - &ad7779_trigger_handler, - &ad7779_buffer_setup_ops); - if (ret) - return ret; - - ret = ad7779_spi_write_mask(st, AD7779_REG_DOUT_FORMAT, - AD7779_DCLK_CLK_DIV_MSK, - FIELD_PREP(AD7779_DCLK_CLK_DIV_MSK, 7)); + ret = ad7779_setup_without_backend(st, indio_dev); if (ret) return ret; |