Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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>
authored by
Antoniu Miclaus
and committed by
Jonathan Cameron
695b7c42
0fbd8017
+6
-4
+6
-4
drivers/iio/adc/ad4851.c
+6
-4
drivers/iio/adc/ad4851.c
···
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if (ret)
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return ret;
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-
ret = regmap_write(st->regmap, AD4851_REG_INTERFACE_CONFIG_A,
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AD4851_SDO_ENABLE);
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if (ret)
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-
return ret;
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+
if (!(st->spi->mode & SPI_3WIRE)) {
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ret = regmap_write(st->regmap, AD4851_REG_INTERFACE_CONFIG_A,
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+
AD4851_SDO_ENABLE);
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+
if (ret)
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+
return ret;
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+
}
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ret = regmap_read(st->regmap, AD4851_REG_PRODUCT_ID_L, &product_id);
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if (ret)