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iio: adc: ad7606: Fix hardcoded offset in the ADC channels

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When introducing num_adc_channels, I overlooked some new functions
created in a meanwhile that had also the hardcoded offset. This commit
adds the new logic to these functions.

Fixes: ef67f16e365c ("iio: adc: ad7606: Introduce num_adc_channels")
Signed-off-by: Guillaume Stols <gstols@baylibre.com>
Link: https://patch.msgid.link/20241210-ad7606_add_iio_backend_software_mode-v2-1-6619c3e50d81@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Guillaume Stols 2024-12-10 10:46:41 +00:00 committed by Jonathan Cameron
parent 54d394905c
commit f151fbdd55
2 changed files with 29 additions and 21 deletions
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48
drivers/iio/adc/ad7606.c
View File

@ -175,17 +175,17 @@ static const struct iio_chan_spec ad7616_channels[] = {
AD7606_CHANNEL(15, 16),
};
static int ad7606c_18bit_chan_scale_setup(struct ad7606_state *st,
static int ad7606c_18bit_chan_scale_setup(struct iio_dev *indio_dev,
struct iio_chan_spec *chan, int ch);
static int ad7606c_16bit_chan_scale_setup(struct ad7606_state *st,
static int ad7606c_16bit_chan_scale_setup(struct iio_dev *indio_dev,
struct iio_chan_spec *chan, int ch);
static int ad7606_16bit_chan_scale_setup(struct ad7606_state *st,
static int ad7606_16bit_chan_scale_setup(struct iio_dev *indio_dev,
struct iio_chan_spec *chan, int ch);
static int ad7607_chan_scale_setup(struct ad7606_state *st,
static int ad7607_chan_scale_setup(struct iio_dev *indio_dev,
struct iio_chan_spec *chan, int ch);
static int ad7608_chan_scale_setup(struct ad7606_state *st,
static int ad7608_chan_scale_setup(struct iio_dev *indio_dev,
struct iio_chan_spec *chan, int ch);
static int ad7609_chan_scale_setup(struct ad7606_state *st,
static int ad7609_chan_scale_setup(struct iio_dev *indio_dev,
struct iio_chan_spec *chan, int ch);
const struct ad7606_chip_info ad7605_4_info = {
@ -323,9 +323,10 @@ int ad7606_reset(struct ad7606_state *st)
}
EXPORT_SYMBOL_NS_GPL(ad7606_reset, "IIO_AD7606");
static int ad7606_16bit_chan_scale_setup(struct ad7606_state *st,
static int ad7606_16bit_chan_scale_setup(struct iio_dev *indio_dev,
struct iio_chan_spec *chan, int ch)
{
struct ad7606_state *st = iio_priv(indio_dev);
struct ad7606_chan_scale *cs = &st->chan_scales[ch];
if (!st->sw_mode_en) {
@ -345,10 +346,12 @@ static int ad7606_16bit_chan_scale_setup(struct ad7606_state *st,
return 0;
}
static int ad7606_get_chan_config(struct ad7606_state *st, int ch,
static int ad7606_get_chan_config(struct iio_dev *indio_dev, int ch,
bool *bipolar, bool *differential)
{
unsigned int num_channels = st->chip_info->num_channels - 1;
struct ad7606_state *st = iio_priv(indio_dev);
unsigned int num_channels = st->chip_info->num_adc_channels;
unsigned int offset = indio_dev->num_channels - st->chip_info->num_adc_channels;
struct device *dev = st->dev;
int ret;
@ -364,7 +367,7 @@ static int ad7606_get_chan_config(struct ad7606_state *st, int ch,
continue;
/* channel number (here) is from 1 to num_channels */
if (reg == 0 || reg > num_channels) {
if (reg < offset || reg > num_channels) {
dev_warn(dev,
"Invalid channel number (ignoring): %d\n", reg);
continue;
@ -399,9 +402,10 @@ static int ad7606_get_chan_config(struct ad7606_state *st, int ch,
return 0;
}
static int ad7606c_18bit_chan_scale_setup(struct ad7606_state *st,
static int ad7606c_18bit_chan_scale_setup(struct iio_dev *indio_dev,
struct iio_chan_spec *chan, int ch)
{
struct ad7606_state *st = iio_priv(indio_dev);
struct ad7606_chan_scale *cs = &st->chan_scales[ch];
bool bipolar, differential;
int ret;
@ -413,7 +417,7 @@ static int ad7606c_18bit_chan_scale_setup(struct ad7606_state *st,
return 0;
}
ret = ad7606_get_chan_config(st, ch, &bipolar, &differential);
ret = ad7606_get_chan_config(indio_dev, ch, &bipolar, &differential);
if (ret)
return ret;
@ -455,9 +459,10 @@ static int ad7606c_18bit_chan_scale_setup(struct ad7606_state *st,
return 0;
}
static int ad7606c_16bit_chan_scale_setup(struct ad7606_state *st,
static int ad7606c_16bit_chan_scale_setup(struct iio_dev *indio_dev,
struct iio_chan_spec *chan, int ch)
{
struct ad7606_state *st = iio_priv(indio_dev);
struct ad7606_chan_scale *cs = &st->chan_scales[ch];
bool bipolar, differential;
int ret;
@ -469,7 +474,7 @@ static int ad7606c_16bit_chan_scale_setup(struct ad7606_state *st,
return 0;
}
ret = ad7606_get_chan_config(st, ch, &bipolar, &differential);
ret = ad7606_get_chan_config(indio_dev, ch, &bipolar, &differential);
if (ret)
return ret;
@ -512,9 +517,10 @@ static int ad7606c_16bit_chan_scale_setup(struct ad7606_state *st,
return 0;
}
static int ad7607_chan_scale_setup(struct ad7606_state *st,
static int ad7607_chan_scale_setup(struct iio_dev *indio_dev,
struct iio_chan_spec *chan, int ch)
{
struct ad7606_state *st = iio_priv(indio_dev);
struct ad7606_chan_scale *cs = &st->chan_scales[ch];
cs->range = 0;
@ -523,9 +529,10 @@ static int ad7607_chan_scale_setup(struct ad7606_state *st,
return 0;
}
static int ad7608_chan_scale_setup(struct ad7606_state *st,
static int ad7608_chan_scale_setup(struct iio_dev *indio_dev,
struct iio_chan_spec *chan, int ch)
{
struct ad7606_state *st = iio_priv(indio_dev);
struct ad7606_chan_scale *cs = &st->chan_scales[ch];
cs->range = 0;
@ -534,9 +541,10 @@ static int ad7608_chan_scale_setup(struct ad7606_state *st,
return 0;
}
static int ad7609_chan_scale_setup(struct ad7606_state *st,
static int ad7609_chan_scale_setup(struct iio_dev *indio_dev,
struct iio_chan_spec *chan, int ch)
{
struct ad7606_state *st = iio_priv(indio_dev);
struct ad7606_chan_scale *cs = &st->chan_scales[ch];
cs->range = 0;
@ -1146,8 +1154,8 @@ static int ad7606_sw_mode_setup(struct iio_dev *indio_dev)
static int ad7606_chan_scales_setup(struct iio_dev *indio_dev)
{
unsigned int num_channels = indio_dev->num_channels - 1;
struct ad7606_state *st = iio_priv(indio_dev);
unsigned int offset = indio_dev->num_channels - st->chip_info->num_adc_channels;
struct iio_chan_spec *chans;
size_t size;
int ch, ret;
@ -1161,8 +1169,8 @@ static int ad7606_chan_scales_setup(struct iio_dev *indio_dev)
memcpy(chans, indio_dev->channels, size);
indio_dev->channels = chans;
for (ch = 0; ch < num_channels; ch++) {
ret = st->chip_info->scale_setup_cb(st, &chans[ch + 1], ch);
for (ch = 0; ch < st->chip_info->num_adc_channels; ch++) {
ret = st->chip_info->scale_setup_cb(indio_dev, &chans[ch + offset], ch);
if (ret)
return ret;
}

2
drivers/iio/adc/ad7606.h
View File

@ -69,7 +69,7 @@
struct ad7606_state;
typedef int (*ad7606_scale_setup_cb_t)(struct ad7606_state *st,
typedef int (*ad7606_scale_setup_cb_t)(struct iio_dev *indio_dev,
struct iio_chan_spec *chan, int ch);
/**