diff options
| author | Dumitru Ceclan <dumitru.ceclan@analog.com> | 2024-05-21 11:45:39 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2024-05-27 11:49:20 +0300 |
| commit | ab6f0ab178137170a6b40f8f3d7a3806708a202c (patch) | |
| tree | f1e4cd1d25edf5756769e2d20153edbd613c4782 /drivers/iio/adc | |
| parent | a23c14b062d8800a2192077d83273bbfe6c7552d (diff) | |
| download | linux-ab6f0ab178137170a6b40f8f3d7a3806708a202c.tar.xz | |
iio: adc: ad7173: fix buffers enablement for ad7176-2
AD7176-2 does not feature input buffers and marks corespondent register
bits as read only. Enable buffers only on supported models.
Fixes: 76a1e6a42802 ("iio: adc: ad7173: add AD7173 driver")
Reviewed-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Dumitru Ceclan <dumitru.ceclan@analog.com>
Link: https://lore.kernel.org/r/20240521-ad7173-fixes-v1-1-8161cc7f3ad1@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/adc')
| -rw-r--r-- | drivers/iio/adc/ad7173.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/iio/adc/ad7173.c b/drivers/iio/adc/ad7173.c index a7826bba0852..91acedaddb57 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; @@ -212,6 +213,7 @@ 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, @@ -224,6 +226,7 @@ static const struct ad7173_device_info ad7173_device_info[] = { .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 +240,7 @@ 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, @@ -251,6 +255,7 @@ 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, @@ -263,6 +268,7 @@ 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 = 16 * HZ_PER_MHZ, @@ -277,6 +283,7 @@ 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, @@ -289,6 +296,7 @@ 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, .odr_start_value = AD7177_ODR_START_VALUE, @@ -932,7 +940,7 @@ 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 +997,7 @@ 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"); |