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Apparently the settings from ad9265 were copied by mistake when support for the device was added to the driver. Fixes: 4606d0f4b05f ("iio: adc: ad9467: add support for AD9434 high-speed A= DC") Signed-off-by: Tomas Melin --- drivers/iio/adc/ad9467.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/ad9467.c b/drivers/iio/adc/ad9467.c index f7a9f46ea0dc405e25f312197df4b2131871b4bc..2910b6c5b576d101a25c0b5f0fb= 9024f0b4da63d 100644 --- a/drivers/iio/adc/ad9467.c +++ b/drivers/iio/adc/ad9467.c @@ -95,7 +95,7 @@ =20 #define CHIPID_AD9434 0x6A #define AD9434_DEF_OUTPUT_MODE 0x00 -#define AD9434_REG_VREF_MASK 0xC0 +#define AD9434_REG_VREF_MASK 0x1F =20 /* * Analog Devices AD9467 16-Bit, 200/250 MSPS ADC --=20 2.47.3 From nobody Mon Dec 1 21:30:50 2025 Received: from DB3PR0202CU003.outbound.protection.outlook.com (mail-northeuropeazon11020108.outbound.protection.outlook.com [52.101.84.108]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 23A0E2F6901; Mon, 1 Dec 2025 12:00:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; 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Among the devices currently supported by this driver, this setting is specific to ad9434. Signed-off-by: Tomas Melin --- drivers/iio/adc/ad9467.c | 58 ++++++++++++++++++++++++++++++++++++++++++++= +++- 1 file changed, 57 insertions(+), 1 deletion(-) diff --git a/drivers/iio/adc/ad9467.c b/drivers/iio/adc/ad9467.c index 2910b6c5b576d101a25c0b5f0fb9024f0b4da63d..41b29e9e765b4296358bb277d63= 993889ce46290 100644 --- a/drivers/iio/adc/ad9467.c +++ b/drivers/iio/adc/ad9467.c @@ -145,6 +145,7 @@ struct ad9467_chip_info { unsigned int num_lanes; unsigned int dco_en; unsigned int test_points; + const int *offset_range; /* data clock output */ bool has_dco; bool has_dco_invert; @@ -234,6 +235,10 @@ static int ad9467_reg_access(struct iio_dev *indio_dev= , unsigned int reg, return 0; } =20 +static const int ad9434_offset_range[] =3D { + -128, 1, 127, +}; + static const unsigned int ad9265_scale_table[][2] =3D { {1250, 0x00}, {1500, 0x40}, {1750, 0x80}, {2000, 0xC0}, }; @@ -281,6 +286,23 @@ static void __ad9467_get_scale(struct ad9467_state *st= , int index, *val2 =3D tmp % 1000000; } =20 +#define AD9434_CHAN(_chan, avai_mask, _si, _bits, _sign) \ +{ \ + .type =3D IIO_VOLTAGE, \ + .indexed =3D 1, \ + .channel =3D _chan, \ + .info_mask_shared_by_type =3D BIT(IIO_CHAN_INFO_SCALE) | \ + BIT(IIO_CHAN_INFO_SAMP_FREQ) | \ + BIT(IIO_CHAN_INFO_OFFSET), \ + .info_mask_shared_by_type_available =3D avai_mask, \ + .scan_index =3D _si, \ + .scan_type =3D { \ + .sign =3D _sign, \ + .realbits =3D _bits, \ + .storagebits =3D 16, \ + }, \ +} + #define AD9467_CHAN(_chan, avai_mask, _si, _bits, _sign) \ { \ .type =3D IIO_VOLTAGE, \ @@ -298,7 +320,8 @@ static void __ad9467_get_scale(struct ad9467_state *st,= int index, } =20 static const struct iio_chan_spec ad9434_channels[] =3D { - AD9467_CHAN(0, BIT(IIO_CHAN_INFO_SCALE), 0, 12, 's'), + AD9434_CHAN(0, BIT(IIO_CHAN_INFO_SCALE) | BIT(IIO_CHAN_INFO_OFFSET), + 0, 12, 's'), }; =20 static const struct iio_chan_spec ad9467_channels[] =3D { @@ -367,6 +390,7 @@ static const struct ad9467_chip_info ad9434_chip_tbl = =3D { .default_output_mode =3D AD9434_DEF_OUTPUT_MODE, .vref_mask =3D AD9434_REG_VREF_MASK, .num_lanes =3D 6, + .offset_range =3D ad9434_offset_range, }; =20 static const struct ad9467_chip_info ad9265_chip_tbl =3D { @@ -499,6 +523,29 @@ static int ad9467_set_scale(struct ad9467_state *st, i= nt val, int val2) return -EINVAL; } =20 +static int ad9467_get_offset(struct ad9467_state *st, int *val) +{ + *val =3D ad9467_spi_read(st, AN877_ADC_REG_OFFSET); + if (*val < 0) + return *val; + + return IIO_VAL_INT; +} + +static int ad9467_set_offset(struct ad9467_state *st, int val) +{ + int ret; + + if (val < st->info->offset_range[0] || val > st->info->offset_range[2]) + return -EINVAL; + + ret =3D ad9467_spi_write(st, AN877_ADC_REG_OFFSET, val); + if (ret < 0) + return ret; + return ad9467_spi_write(st, AN877_ADC_REG_TRANSFER, + AN877_ADC_TRANSFER_SYNC); +} + static int ad9467_outputmode_set(struct ad9467_state *st, unsigned int mod= e) { int ret; @@ -802,6 +849,8 @@ static int ad9467_read_raw(struct iio_dev *indio_dev, struct ad9467_state *st =3D iio_priv(indio_dev); =20 switch (m) { + case IIO_CHAN_INFO_OFFSET: + return ad9467_get_offset(st, val); case IIO_CHAN_INFO_SCALE: return ad9467_get_scale(st, val, val2); case IIO_CHAN_INFO_SAMP_FREQ: @@ -836,6 +885,8 @@ static int ad9467_write_raw(struct iio_dev *indio_dev, int ret; =20 switch (mask) { + case IIO_CHAN_INFO_OFFSET: + return ad9467_set_offset(st, val); case IIO_CHAN_INFO_SCALE: return ad9467_set_scale(st, val, val2); case IIO_CHAN_INFO_SAMP_FREQ: @@ -874,6 +925,11 @@ static int ad9467_read_avail(struct iio_dev *indio_dev, const struct ad9467_chip_info *info =3D st->info; =20 switch (mask) { + case IIO_CHAN_INFO_OFFSET: + *type =3D IIO_VAL_INT; + *vals =3D info->offset_range; + *length =3D 3; + return IIO_AVAIL_RANGE; case IIO_CHAN_INFO_SCALE: *vals =3D (const int *)st->scales; *type =3D IIO_VAL_INT_PLUS_MICRO; --=20 2.47.3