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iio: adc: ad7606: Add debug mode for ad7616 

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

Signed-off-by: Beniamin Bia <beniamin.bia@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
alistair/sunxi64-5.4-dsi
Beniamin Bia 2019-07-18 09:27:34 +03:00 committed by Jonathan Cameron
parent f2a22e1e17
commit a444fa597e
1 changed files with 32 additions and 1 deletions
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33
drivers/iio/adc/ad7606.c
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@ -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)