diff options
| author | Antoniu Miclaus <antoniu.miclaus@analog.com> | 2025-06-26 13:40:24 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2025-07-06 10:37:51 +0100 |
| commit | 695b7c42d97b2a819b5602f16eed89d08fb45981 (patch) | |
| tree | 011d73f754225e2bb29770713ed5c150750c887a | |
| parent | 0fbd8017ab965e416870843ba504abd19bfef3b2 (diff) | |
iio: adc: ad4851: add spi 3-wire support
Add support for 3-wire configuration within the driver.
By default 4-wire configuration is used.
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250626104024.8645-2-antoniu.miclaus@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
| -rw-r--r-- | drivers/iio/adc/ad4851.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/iio/adc/ad4851.c b/drivers/iio/adc/ad4851.c index 31e1e02c0ce3..1ad77f2a4580 100644 --- a/drivers/iio/adc/ad4851.c +++ b/drivers/iio/adc/ad4851.c @@ -444,10 +444,12 @@ static int ad4851_setup(struct ad4851_state *st) if (ret) return ret; - ret = regmap_write(st->regmap, AD4851_REG_INTERFACE_CONFIG_A, - AD4851_SDO_ENABLE); - if (ret) - return ret; + if (!(st->spi->mode & SPI_3WIRE)) { + ret = regmap_write(st->regmap, AD4851_REG_INTERFACE_CONFIG_A, + AD4851_SDO_ENABLE); + if (ret) + return ret; + } ret = regmap_read(st->regmap, AD4851_REG_PRODUCT_ID_L, &product_id); if (ret) |