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path: root/drivers/iio/adc/ad7173.c
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Diffstat (limited to 'drivers/iio/adc/ad7173.c')
-rw-r--r--drivers/iio/adc/ad7173.c37
1 files changed, 19 insertions, 18 deletions
diff --git a/drivers/iio/adc/ad7173.c b/drivers/iio/adc/ad7173.c
index a7826bba0852..b26d4575e256 100644
--- a/drivers/iio/adc/ad7173.c
+++ b/drivers/iio/adc/ad7173.c
@@ -145,6 +145,7 @@ struct ad7173_device_info {
unsigned int id;
char *name;
bool has_temp;
+ bool has_input_buf;
bool has_int_ref;
bool has_ref2;
u8 num_gpios;
@@ -212,18 +213,21 @@ static const struct ad7173_device_info ad7173_device_info[] = {
.num_configs = 4,
.num_gpios = 2,
.has_temp = true,
+ .has_input_buf = true,
.has_int_ref = true,
.clock = 2 * HZ_PER_MHZ,
.sinc5_data_rates = ad7173_sinc5_data_rates,
.num_sinc5_data_rates = ARRAY_SIZE(ad7173_sinc5_data_rates),
},
[ID_AD7172_4] = {
+ .name = "ad7172-4",
.id = AD7172_4_ID,
.num_inputs = 9,
.num_channels = 8,
.num_configs = 8,
.num_gpios = 4,
.has_temp = false,
+ .has_input_buf = true,
.has_ref2 = true,
.clock = 2 * HZ_PER_MHZ,
.sinc5_data_rates = ad7173_sinc5_data_rates,
@@ -237,6 +241,7 @@ static const struct ad7173_device_info ad7173_device_info[] = {
.num_configs = 8,
.num_gpios = 4,
.has_temp = true,
+ .has_input_buf = true,
.has_int_ref = true,
.has_ref2 = true,
.clock = 2 * HZ_PER_MHZ,
@@ -251,18 +256,21 @@ static const struct ad7173_device_info ad7173_device_info[] = {
.num_configs = 4,
.num_gpios = 2,
.has_temp = true,
+ .has_input_buf = true,
.has_int_ref = true,
.clock = 16 * HZ_PER_MHZ,
.sinc5_data_rates = ad7175_sinc5_data_rates,
.num_sinc5_data_rates = ARRAY_SIZE(ad7175_sinc5_data_rates),
},
[ID_AD7175_8] = {
+ .name = "ad7175-8",
.id = AD7175_8_ID,
.num_inputs = 17,
.num_channels = 16,
.num_configs = 8,
.num_gpios = 4,
.has_temp = true,
+ .has_input_buf = true,
.has_int_ref = true,
.has_ref2 = true,
.clock = 16 * HZ_PER_MHZ,
@@ -277,18 +285,21 @@ static const struct ad7173_device_info ad7173_device_info[] = {
.num_configs = 4,
.num_gpios = 2,
.has_temp = false,
+ .has_input_buf = false,
.has_int_ref = true,
.clock = 16 * HZ_PER_MHZ,
.sinc5_data_rates = ad7175_sinc5_data_rates,
.num_sinc5_data_rates = ARRAY_SIZE(ad7175_sinc5_data_rates),
},
[ID_AD7177_2] = {
+ .name = "ad7177-2",
.id = AD7177_ID,
.num_inputs = 5,
.num_channels = 4,
.num_configs = 4,
.num_gpios = 2,
.has_temp = true,
+ .has_input_buf = true,
.has_int_ref = true,
.clock = 16 * HZ_PER_MHZ,
.odr_start_value = AD7177_ODR_START_VALUE,
@@ -532,6 +543,7 @@ static int ad7173_append_status(struct ad_sigma_delta *sd, bool append)
unsigned int interface_mode = st->interface_mode;
int ret;
+ interface_mode &= ~AD7173_INTERFACE_DATA_STAT;
interface_mode |= AD7173_INTERFACE_DATA_STAT_EN(append);
ret = ad_sd_write_reg(&st->sd, AD7173_REG_INTERFACE_MODE, 2, interface_mode);
if (ret)
@@ -705,7 +717,7 @@ static int ad7173_write_raw(struct iio_dev *indio_dev,
{
struct ad7173_state *st = iio_priv(indio_dev);
struct ad7173_channel_config *cfg;
- unsigned int freq, i, reg;
+ unsigned int freq, i;
int ret;
ret = iio_device_claim_direct_mode(indio_dev);
@@ -721,16 +733,7 @@ static int ad7173_write_raw(struct iio_dev *indio_dev,
cfg = &st->channels[chan->address].cfg;
cfg->odr = i;
-
- if (!cfg->live)
- break;
-
- ret = ad_sd_read_reg(&st->sd, AD7173_REG_FILTER(cfg->cfg_slot), 2, &reg);
- if (ret)
- break;
- reg &= ~AD7173_FILTER_ODR0_MASK;
- reg |= FIELD_PREP(AD7173_FILTER_ODR0_MASK, i);
- ret = ad_sd_write_reg(&st->sd, AD7173_REG_FILTER(cfg->cfg_slot), 2, reg);
+ cfg->live = false;
break;
default:
@@ -792,8 +795,7 @@ static const struct iio_chan_spec ad7173_channel_template = {
.type = IIO_VOLTAGE,
.indexed = 1,
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
- BIT(IIO_CHAN_INFO_SCALE),
- .info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SAMP_FREQ),
+ BIT(IIO_CHAN_INFO_SCALE) | BIT(IIO_CHAN_INFO_SAMP_FREQ),
.scan_type = {
.sign = 'u',
.realbits = 24,
@@ -804,12 +806,11 @@ static const struct iio_chan_spec ad7173_channel_template = {
static const struct iio_chan_spec ad7173_temp_iio_channel_template = {
.type = IIO_TEMP,
- .indexed = 1,
.channel = AD7173_AIN_TEMP_POS,
.channel2 = AD7173_AIN_TEMP_NEG,
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
- BIT(IIO_CHAN_INFO_SCALE) | BIT(IIO_CHAN_INFO_OFFSET),
- .info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SAMP_FREQ),
+ BIT(IIO_CHAN_INFO_SCALE) | BIT(IIO_CHAN_INFO_OFFSET) |
+ BIT(IIO_CHAN_INFO_SAMP_FREQ),
.scan_type = {
.sign = 'u',
.realbits = 24,
@@ -932,7 +933,7 @@ static int ad7173_fw_parse_channel_config(struct iio_dev *indio_dev)
AD7173_CH_ADDRESS(chan_arr[chan_index].channel,
chan_arr[chan_index].channel2);
chan_st_priv->cfg.bipolar = false;
- chan_st_priv->cfg.input_buf = true;
+ chan_st_priv->cfg.input_buf = st->info->has_input_buf;
chan_st_priv->cfg.ref_sel = AD7173_SETUP_REF_SEL_INT_REF;
st->adc_mode |= AD7173_ADC_MODE_REF_EN;
@@ -989,7 +990,7 @@ static int ad7173_fw_parse_channel_config(struct iio_dev *indio_dev)
chan_st_priv->ain = AD7173_CH_ADDRESS(ain[0], ain[1]);
chan_st_priv->chan_reg = chan_index;
- chan_st_priv->cfg.input_buf = true;
+ chan_st_priv->cfg.input_buf = st->info->has_input_buf;
chan_st_priv->cfg.odr = 0;
chan_st_priv->cfg.bipolar = fwnode_property_read_bool(child, "bipolar");
generated by cgit v1.2.3 (git 2.39.0) at 2024-10-06 17:56:08 +0300