Commit a444fa59 authored by Beniamin Bia's avatar Beniamin Bia Committed by Jonathan Cameron
Browse files

iio: adc: ad7606: Add debug mode for ad7616 



Support for register access was added for devices which have software
mode.

Signed-off-by: default avatarBeniamin Bia <beniamin.bia@analog.com>
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent f2a22e1e

drivers/iio/adc/ad7606.c

+32 −1
Original line number Diff line number Diff line
@@ -60,6 +60,29 @@ static int ad7606_reset(struct ad7606_state *st) 
	return -ENODEV;

}



static int ad7606_reg_access(struct iio_dev *indio_dev,

			     unsigned int reg,

			     unsigned int writeval,

			     unsigned int *readval)

{

	struct ad7606_state *st = iio_priv(indio_dev);

	int ret;



	mutex_lock(&st->lock);

	if (readval) {

		ret = st->bops->reg_read(st, reg);

		if (ret < 0)

			goto err_unlock;

		*readval = ret;

		ret = 0;

	} else {

		ret = st->bops->reg_write(st, reg, writeval);

	}

err_unlock:

	mutex_unlock(&st->lock);

	return ret;

}



static int ad7606_read_samples(struct ad7606_state *st)

{

	unsigned int num = st->chip_info->num_channels;
@@ -501,6 +524,14 @@ static const struct iio_info ad7606_info_os_and_range = { 
	.validate_trigger = &ad7606_validate_trigger,

};



static const struct iio_info ad7606_info_os_range_and_debug = {

	.read_raw = &ad7606_read_raw,

	.write_raw = &ad7606_write_raw,

	.debugfs_reg_access = &ad7606_reg_access,

	.attrs = &ad7606_attribute_group_os_and_range,

	.validate_trigger = &ad7606_validate_trigger,

};



static const struct iio_info ad7606_info_os = {

	.read_raw = &ad7606_read_raw,

	.write_raw = &ad7606_write_raw,
@@ -617,7 +648,7 @@ int ad7606_probe(struct device *dev, int irq, void __iomem *base_address, 


		/* After reset, in software mode, ±10 V is set by default */

		memset32(st->range, 2, ARRAY_SIZE(st->range));

		indio_dev->info = &ad7606_info_os_and_range;

		indio_dev->info = &ad7606_info_os_range_and_debug;



		ret = st->bops->sw_mode_config(indio_dev);

		if (ret < 0)