From: Rodrigo Alencar <[email protected]> Add RESET pin GPIO support through an optional reset controller, which is local to the probe function and deasserted by default.
Signed-off-by: Rodrigo Alencar <[email protected]> --- drivers/iio/dac/ad5686.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/iio/dac/ad5686.c b/drivers/iio/dac/ad5686.c index cfbc1624e01c..f239880d1cc7 100644 --- a/drivers/iio/dac/ad5686.c +++ b/drivers/iio/dac/ad5686.c @@ -12,6 +12,7 @@ #include <linux/export.h> #include <linux/module.h> #include <linux/regulator/consumer.h> +#include <linux/reset.h> #include <linux/sysfs.h> #include <linux/wordpart.h> @@ -509,6 +510,7 @@ int ad5686_probe(struct device *dev, const struct ad5686_chip_info *chip_info, const char *name, const struct ad5686_bus_ops *ops) { + struct reset_control *rstc; struct iio_dev *indio_dev; struct ad5686_state *st; int ret, i, shift; @@ -544,6 +546,11 @@ int ad5686_probe(struct device *dev, return dev_err_probe(dev, -EINVAL, "invalid or not provided vref voltage\n"); + rstc = devm_reset_control_get_optional_exclusive_deasserted(dev, NULL); + if (IS_ERR(rstc)) + return dev_err_probe(dev, PTR_ERR(rstc), + "Failed to get reset controller\n"); + /* Set all the power down mode for all channels to 1K pulldown */ st->pwr_down_mode = ~0U; st->pwr_down_mask = ~0U; -- 2.43.0
