linux-kernel - [PATCH] iio: adis16201: Correct inclinometer channel resolution

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Message-ID: <20250421131539.912966-1-gshahrouzi@gmail.com>
Date: Mon, 21 Apr 2025 09:15:39 -0400
From: Gabriel Shahrouzi <gshahrouzi@...il.com>
To: jic23@...nel.org
Cc: lars@...afoo.de,
	linux-iio@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Michael.Hennerich@...log.com,
	skhan@...uxfoundation.org,
	linux-kernel-mentees@...ts.linux.dev,
	marcelo.schmitt1@...il.com,
	Gabriel Shahrouzi <gshahrouzi@...il.com>,
	stable@...r.kernel.org
Subject: [PATCH] iio: adis16201: Correct inclinometer channel resolution

The inclinometer channels were previously defined with 14 realbits.
However, the ADIS16201 datasheet states the resolution for these output
channels is 12 bits (Page 14, text description; Page 15, table 7).

Correct the realbits value to 12 to accurately reflect the hardware.

Fixes: f7fe1d1dd5a5 ("staging: iio: new adis16201 driver")
Cc: stable@...r.kernel.org
Signed-off-by: Gabriel Shahrouzi <gshahrouzi@...il.com>
---
 drivers/iio/accel/adis16201.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/accel/adis16201.c b/drivers/iio/accel/adis16201.c
index 982b33f6eccac..dcc8d9f2ee0f1 100644
--- a/drivers/iio/accel/adis16201.c
+++ b/drivers/iio/accel/adis16201.c
@@ -211,9 +211,9 @@ static const struct iio_chan_spec adis16201_channels[] = {
 			BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
 	ADIS_AUX_ADC_CHAN(ADIS16201_AUX_ADC_REG, ADIS16201_SCAN_AUX_ADC, 0, 12),
 	ADIS_INCLI_CHAN(X, ADIS16201_XINCL_OUT_REG, ADIS16201_SCAN_INCLI_X,
-			BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
+			BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 12),
 	ADIS_INCLI_CHAN(Y, ADIS16201_YINCL_OUT_REG, ADIS16201_SCAN_INCLI_Y,
-			BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
+			BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 12),
 	IIO_CHAN_SOFT_TIMESTAMP(7)
 };
 
-- 
2.43.0