[PATCH] iio: adc: ade9000: fix wrong register in CALIBBIAS case
From: Giorgi Tchankvetadze
Date: Thu Feb 26 2026 - 08:43:39 EST
The switch statement in ade9000_write_raw() attempts to match
chan->address against ADE9000_REG_AWATTOS (0x00F) to dispatch
the calibration offset write for active power channels. However,
chan->address is set via ADE9000_ADDR_ADJUST(ADE9000_REG_AWATT,
num), so after masking the phase bits, tmp holds
ADE9000_REG_AWATT (0x210), which never matches 0x00F.
As a result, writing IIO_CHAN_INFO_CALIBBIAS for IIO_POWER always
falls through to the default case and returns -EINVAL, making
active power offset calibration silently broken.
Fix this by matching against ADE9000_REG_AWATT instead, which is
the actual base address stored in chan->address for watt channels.
Signed-off-by: Giorgi Tchankvetadze <giorgitchankvetadze1997@xxxxxxxxx>
---
drivers/iio/adc/ade9000.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/adc/ade9000.c b/drivers/iio/adc/ade9000.c
index 5dcc26a08970..1499fb1c718a 100644
--- a/drivers/iio/adc/ade9000.c
+++ b/drivers/iio/adc/ade9000.c
@@ -1123,7 +1123,7 @@ static int ade9000_write_raw(struct iio_dev *indio_dev,
tmp &= ~ADE9000_PHASE_C_POS_BIT;
switch (tmp) {
- case ADE9000_REG_AWATTOS:
+ case ADE9000_REG_AWATT:
return regmap_write(st->regmap,
ADE9000_ADDR_ADJUST(ADE9000_REG_AWATTOS,
chan->channel), val);
--
2.52.0