diff options
Diffstat (limited to 'drivers/iio/addac/ad74413r.c')
| -rw-r--r-- | drivers/iio/addac/ad74413r.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/iio/addac/ad74413r.c b/drivers/iio/addac/ad74413r.c index 29b3a5775f23..61030053cbea 100644 --- a/drivers/iio/addac/ad74413r.c +++ b/drivers/iio/addac/ad74413r.c @@ -71,6 +71,7 @@ struct ad74413r_state { struct regmap *regmap; struct device *dev; struct iio_trigger *trig; + struct gpio_desc *reset_gpio; size_t adc_active_channels; struct spi_message adc_samples_msg; @@ -393,6 +394,13 @@ static int ad74413r_reset(struct ad74413r_state *st) { int ret; + if (st->reset_gpio) { + gpiod_set_value_cansleep(st->reset_gpio, 1); + fsleep(50); + gpiod_set_value_cansleep(st->reset_gpio, 0); + return 0; + } + ret = regmap_write(st->regmap, AD74413R_REG_CMD_KEY, AD74413R_CMD_KEY_RESET1); if (ret) @@ -1322,6 +1330,10 @@ static int ad74413r_probe(struct spi_device *spi) if (IS_ERR(st->regmap)) return PTR_ERR(st->regmap); + st->reset_gpio = devm_gpiod_get_optional(st->dev, "reset", GPIOD_OUT_LOW); + if (IS_ERR(st->reset_gpio)) + return PTR_ERR(st->reset_gpio); + st->refin_reg = devm_regulator_get(st->dev, "refin"); if (IS_ERR(st->refin_reg)) return dev_err_probe(st->dev, PTR_ERR(st->refin_reg), |