From: Carlos Song Date: Thu, 8 Dec 2022 07:19:07 +0000 (+0800) Subject: iio: imu: fxos8700: fix incomplete ACCEL and MAGN channels readback X-Git-Tag: baikal/aarch64/sdk6.1~70 X-Git-Url: https://git.baikalelectronics.ru/sdk/?a=commitdiff_plain;h=9302e0b99920712547b5cb57e98ad9be4bdf758f;p=kernel.git iio: imu: fxos8700: fix incomplete ACCEL and MAGN channels readback commit 37a94d86d7050665d6d01378b2c916c28e454f10 upstream. The length of ACCEL and MAGN 3-axis channels output data is 6 byte individually. However block only read 3 bytes data into buffer from ACCEL or MAGN output data registers every time. It causes an incomplete ACCEL and MAGN channels readback. Set correct value count for regmap_bulk_read to get 6 bytes ACCEL and MAGN channels readback. Fixes: 2c7e7594a2fd ("iio: imu: Add support for the FXOS8700 IMU") Signed-off-by: Carlos Song Link: https://lore.kernel.org/r/20221208071911.2405922-4-carlos.song@nxp.com Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/iio/imu/fxos8700_core.c b/drivers/iio/imu/fxos8700_core.c index d19f47227b5f6..26029510b1e97 100644 --- a/drivers/iio/imu/fxos8700_core.c +++ b/drivers/iio/imu/fxos8700_core.c @@ -425,7 +425,7 @@ static int fxos8700_get_data(struct fxos8700_data *data, int chan_type, /* Block read 6 bytes of device output registers to avoid data loss */ ret = regmap_bulk_read(data->regmap, base, data->buf, - FXOS8700_DATA_BUF_SIZE); + sizeof(data->buf)); if (ret) return ret;