linux-kernel - [PATCH] iio: imu: inv_icm42600: enable temp polling when buffer is on

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Message-Id: <20251218-inv-icm42600-do-not-block-temperature-polling-v1-1-909fbd4e240a@tdk.com>
Date: Thu, 18 Dec 2025 10:21:17 +0100
From: Jean-Baptiste Maneyrol via B4 Relay <devnull+jean-baptiste.maneyrol.tdk.com@...nel.org>
To: Jonathan Cameron <jic23@...nel.org>, 
 David Lechner <dlechner@...libre.com>, 
 Nuno Sá <nuno.sa@...log.com>, 
 Andy Shevchenko <andy@...nel.org>
Cc: linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@....com>
Subject: [PATCH] iio: imu: inv_icm42600: enable temp polling when buffer is
 on

From: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@....com>

Delete iio_device_claim_direct_mode() when reading temperature.
It enables polling of temperature data while buffer is on and it
doesn't have any impact on the other sensors.

Signed-off-by: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@....com>
---
 drivers/iio/imu/inv_icm42600/inv_icm42600_temp.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600_temp.c b/drivers/iio/imu/inv_icm42600/inv_icm42600_temp.c
index 30f6a9595eea2308ef9ab0660210fc14ca758198..727b03d541a58a27cc9d793da78d1f4a1c460297 100644
--- a/drivers/iio/imu/inv_icm42600/inv_icm42600_temp.c
+++ b/drivers/iio/imu/inv_icm42600/inv_icm42600_temp.c
@@ -59,10 +59,7 @@ int inv_icm42600_temp_read_raw(struct iio_dev *indio_dev,
 
 	switch (mask) {
 	case IIO_CHAN_INFO_RAW:
-		if (!iio_device_claim_direct(indio_dev))
-			return -EBUSY;
 		ret = inv_icm42600_temp_read(st, &temp);
-		iio_device_release_direct(indio_dev);
 		if (ret)
 			return ret;
 		*val = temp;

---
base-commit: a7b10f0963c651a6406d958a5f64b9c5594f84da
change-id: 20251218-inv-icm42600-do-not-block-temperature-polling-6533056cb30f

Best regards,
-- 
Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@....com>