Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
iio: adc: ad7173: add support for ad4113
This commit adds support for the AD4113 ADC.
The AD4113 is a low power, low noise, 16-bit, Σ-Δ analog-to-digital
converter (ADC) that integrates an analog front end (AFE) for four
fully differential or eight single-ended inputs.
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Signed-off-by: Dumitru Ceclan <dumitru.ceclan@analog.com>
Link: https://patch.msgid.link/20240812-ad4113-v3-3-046e785dd253@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
authored by
Dumitru Ceclan
and committed by
Jonathan Cameron
819b69ab
8a9687b3
+35
-1
+35
-1
drivers/iio/adc/ad7173.c
+35
-1
drivers/iio/adc/ad7173.c
···
3
3
* AD717x and AD411x family SPI ADC driver
4
4
*
5
5
* Supported devices:
6
-
* AD4111/AD4112/AD4114/AD4115/AD4116
6
+
* AD4111/AD4112/AD4113/AD4114/AD4115/AD4116
7
7
* AD7172-2/AD7172-4/AD7173-8/AD7175-2
8
8
* AD7175-8/AD7176-2/AD7177-2
9
9
*
···
84
84
#define AD4111_ID AD7173_ID
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#define AD4112_ID AD7173_ID
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#define AD4114_ID AD7173_ID
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+
#define AD4113_ID 0x31d0
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#define AD4116_ID 0x34d0
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#define AD4115_ID 0x38d0
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#define AD7175_8_ID 0x3cd0
···
171
170
bool has_temp;
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/* ((AVDD1 − AVSS)/5) */
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bool has_pow_supply_monitoring;
173
+
bool data_reg_only_16bit;
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bool has_input_buf;
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bool has_int_ref;
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bool has_ref2;
···
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288
.has_temp = true,
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.has_input_buf = true,
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.has_current_inputs = true,
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+
.has_int_ref = true,
292
+
.clock = 2 * HZ_PER_MHZ,
293
+
.sinc5_data_rates = ad7173_sinc5_data_rates,
294
+
.num_sinc5_data_rates = ARRAY_SIZE(ad7173_sinc5_data_rates),
295
+
};
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+
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+
static const struct ad7173_device_info ad4113_device_info = {
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+
.name = "ad4113",
299
+
.id = AD4113_ID,
300
+
.num_voltage_in_div = 8,
301
+
.num_channels = 16,
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+
.num_configs = 8,
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+
.num_voltage_in = 8,
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+
.num_gpios = 2,
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+
.data_reg_only_16bit = true,
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+
.higher_gpio_bits = true,
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+
.has_vincom_input = true,
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+
.has_input_buf = true,
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.has_int_ref = true,
294
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.clock = 2 * HZ_PER_MHZ,
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.sinc5_data_rates = ad7173_sinc5_data_rates,
···
1005
985
.update_scan_mode = ad7173_update_scan_mode,
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986
};
1007
987
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+
static const struct iio_scan_type ad4113_scan_type = {
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+
.sign = 'u',
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+
.realbits = 16,
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+
.storagebits = 16,
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+
.endianness = IIO_BE,
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+
};
994
+
1008
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static const struct iio_chan_spec ad7173_channel_template = {
1009
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.type = IIO_VOLTAGE,
1010
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.indexed = 1,
···
1253
1226
chan_st_priv->cfg.input_buf = st->info->has_input_buf;
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1227
chan_st_priv->cfg.ref_sel = AD7173_SETUP_REF_SEL_INT_REF;
1255
1228
st->adc_mode |= AD7173_ADC_MODE_REF_EN;
1229
+
if (st->info->data_reg_only_16bit)
1230
+
chan_arr[chan_index].scan_type = ad4113_scan_type;
1256
1231
1257
1232
chan_index++;
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1233
}
···
1334
1305
chan->channel2 = ain[1];
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chan_st_priv->ain = AD7173_CH_ADDRESS(ain[0], ain[1]);
1336
1307
}
1308
+
1309
+
if (st->info->data_reg_only_16bit)
1310
+
chan_arr[chan_index].scan_type = ad4113_scan_type;
1337
1311
1338
1312
chan_index++;
1339
1313
}
···
1466
1434
static const struct of_device_id ad7173_of_match[] = {
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1435
{ .compatible = "adi,ad4111", .data = &ad4111_device_info },
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{ .compatible = "adi,ad4112", .data = &ad4112_device_info },
1437
+
{ .compatible = "adi,ad4113", .data = &ad4113_device_info },
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{ .compatible = "adi,ad4114", .data = &ad4114_device_info },
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{ .compatible = "adi,ad4115", .data = &ad4115_device_info },
1471
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{ .compatible = "adi,ad4116", .data = &ad4116_device_info },
···
1484
1451
static const struct spi_device_id ad7173_id_table[] = {
1485
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{ "ad4111", (kernel_ulong_t)&ad4111_device_info },
1486
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{ "ad4112", (kernel_ulong_t)&ad4112_device_info },
1454
+
{ "ad4113", (kernel_ulong_t)&ad4113_device_info },
1487
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{ "ad4114", (kernel_ulong_t)&ad4114_device_info },
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{ "ad4115", (kernel_ulong_t)&ad4115_device_info },
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{ "ad4116", (kernel_ulong_t)&ad4116_device_info },