iio: imu: inv_mpu6050: add fifo temperature data support

Add support of temperature data in fifo for all chips.
Enable unification of scan elements for icm20602.
Add macros for generating scan elements.

Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
index 268240644adf2597c23ce9e897f39513f0507297..1eb3c263b528218b8dc3e8d2239db8fe411550d9 100644 (file)
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
@@ -104,6 +104,7 @@ static const struct inv_mpu6050_chip_config chip_config_6050 = {
        .divider = INV_MPU6050_FIFO_RATE_TO_DIVIDER(INV_MPU6050_INIT_FIFO_RATE),
        .gyro_fifo_enable = false,
        .accl_fifo_enable = false,
+       .temp_fifo_enable = false,
        .magn_fifo_enable = false,
        .accl_fs = INV_MPU6050_FS_02G,
        .user_ctrl = 0,
@@ -856,19 +857,27 @@ static const struct iio_chan_spec_ext_info inv_ext_info[] = {
                .ext_info = inv_ext_info,                             \
        }
 
+#define INV_MPU6050_TEMP_CHAN(_index)                          \
+       {                                                       \
+               .type = IIO_TEMP,                               \
+               .info_mask_separate = BIT(IIO_CHAN_INFO_RAW)    \
+                               | BIT(IIO_CHAN_INFO_OFFSET)     \
+                               | BIT(IIO_CHAN_INFO_SCALE),     \
+               .scan_index = _index,                           \
+               .scan_type = {                                  \
+                       .sign = 's',                            \
+                       .realbits = 16,                         \
+                       .storagebits = 16,                      \
+                       .shift = 0,                             \
+                       .endianness = IIO_BE,                   \
+               },                                              \
+       }
+
 static const struct iio_chan_spec inv_mpu_channels[] = {
        IIO_CHAN_SOFT_TIMESTAMP(INV_MPU6050_SCAN_TIMESTAMP),
-       /*
-        * Note that temperature should only be via polled reading only,
-        * not the final scan elements output.
-        */
-       {
-               .type = IIO_TEMP,
-               .info_mask_separate = BIT(IIO_CHAN_INFO_RAW)
-                               | BIT(IIO_CHAN_INFO_OFFSET)
-                               | BIT(IIO_CHAN_INFO_SCALE),
-               .scan_index = -1,
-       },
+
+       INV_MPU6050_TEMP_CHAN(INV_MPU6050_SCAN_TEMP),
+
        INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_X, INV_MPU6050_SCAN_GYRO_X),
        INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_Y, INV_MPU6050_SCAN_GYRO_Y),
        INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_Z, INV_MPU6050_SCAN_GYRO_Z),
@@ -878,22 +887,29 @@ static const struct iio_chan_spec inv_mpu_channels[] = {
        INV_MPU6050_CHAN(IIO_ACCEL, IIO_MOD_Z, INV_MPU6050_SCAN_ACCL_Z),
 };
 
+#define INV_MPU6050_SCAN_MASK_3AXIS_ACCEL      \
+       (BIT(INV_MPU6050_SCAN_ACCL_X)           \
+       | BIT(INV_MPU6050_SCAN_ACCL_Y)          \
+       | BIT(INV_MPU6050_SCAN_ACCL_Z))
+
+#define INV_MPU6050_SCAN_MASK_3AXIS_GYRO       \
+       (BIT(INV_MPU6050_SCAN_GYRO_X)           \
+       | BIT(INV_MPU6050_SCAN_GYRO_Y)          \
+       | BIT(INV_MPU6050_SCAN_GYRO_Z))
+
+#define INV_MPU6050_SCAN_MASK_TEMP             (BIT(INV_MPU6050_SCAN_TEMP))
+
 static const unsigned long inv_mpu_scan_masks[] = {
        /* 3-axis accel */
-       BIT(INV_MPU6050_SCAN_ACCL_X)
-               | BIT(INV_MPU6050_SCAN_ACCL_Y)
-               | BIT(INV_MPU6050_SCAN_ACCL_Z),
+       INV_MPU6050_SCAN_MASK_3AXIS_ACCEL,
+       INV_MPU6050_SCAN_MASK_3AXIS_ACCEL | INV_MPU6050_SCAN_MASK_TEMP,
        /* 3-axis gyro */
-       BIT(INV_MPU6050_SCAN_GYRO_X)
-               | BIT(INV_MPU6050_SCAN_GYRO_Y)
-               | BIT(INV_MPU6050_SCAN_GYRO_Z),
+       INV_MPU6050_SCAN_MASK_3AXIS_GYRO,
+       INV_MPU6050_SCAN_MASK_3AXIS_GYRO | INV_MPU6050_SCAN_MASK_TEMP,
        /* 6-axis accel + gyro */
-       BIT(INV_MPU6050_SCAN_ACCL_X)
-               | BIT(INV_MPU6050_SCAN_ACCL_Y)
-               | BIT(INV_MPU6050_SCAN_ACCL_Z)
-               | BIT(INV_MPU6050_SCAN_GYRO_X)
-               | BIT(INV_MPU6050_SCAN_GYRO_Y)
-               | BIT(INV_MPU6050_SCAN_GYRO_Z),
+       INV_MPU6050_SCAN_MASK_3AXIS_ACCEL | INV_MPU6050_SCAN_MASK_3AXIS_GYRO,
+       INV_MPU6050_SCAN_MASK_3AXIS_ACCEL | INV_MPU6050_SCAN_MASK_3AXIS_GYRO
+               | INV_MPU6050_SCAN_MASK_TEMP,
        0,
 };
 
@@ -917,17 +933,9 @@ static const unsigned long inv_mpu_scan_masks[] = {
 
 static const struct iio_chan_spec inv_mpu9150_channels[] = {
        IIO_CHAN_SOFT_TIMESTAMP(INV_MPU9X50_SCAN_TIMESTAMP),
-       /*
-        * Note that temperature should only be via polled reading only,
-        * not the final scan elements output.
-        */
-       {
-               .type = IIO_TEMP,
-               .info_mask_separate = BIT(IIO_CHAN_INFO_RAW)
-                               | BIT(IIO_CHAN_INFO_OFFSET)
-                               | BIT(IIO_CHAN_INFO_SCALE),
-               .scan_index = -1,
-       },
+
+       INV_MPU6050_TEMP_CHAN(INV_MPU6050_SCAN_TEMP),
+
        INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_X, INV_MPU6050_SCAN_GYRO_X),
        INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_Y, INV_MPU6050_SCAN_GYRO_Y),
        INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_Z, INV_MPU6050_SCAN_GYRO_Z),
@@ -944,17 +952,9 @@ static const struct iio_chan_spec inv_mpu9150_channels[] = {
 
 static const struct iio_chan_spec inv_mpu9250_channels[] = {
        IIO_CHAN_SOFT_TIMESTAMP(INV_MPU9X50_SCAN_TIMESTAMP),
-       /*
-        * Note that temperature should only be via polled reading only,
-        * not the final scan elements output.
-        */
-       {
-               .type = IIO_TEMP,
-               .info_mask_separate = BIT(IIO_CHAN_INFO_RAW)
-                               | BIT(IIO_CHAN_INFO_OFFSET)
-                               | BIT(IIO_CHAN_INFO_SCALE),
-               .scan_index = -1,
-       },
+
+       INV_MPU6050_TEMP_CHAN(INV_MPU6050_SCAN_TEMP),
+
        INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_X, INV_MPU6050_SCAN_GYRO_X),
        INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_Y, INV_MPU6050_SCAN_GYRO_Y),
        INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_Z, INV_MPU6050_SCAN_GYRO_Z),
@@ -969,98 +969,50 @@ static const struct iio_chan_spec inv_mpu9250_channels[] = {
        INV_MPU9X50_MAGN_CHAN(IIO_MOD_Z, 16, INV_MPU9X50_SCAN_MAGN_Z),
 };
 
+#define INV_MPU9X50_SCAN_MASK_3AXIS_MAGN       \
+       (BIT(INV_MPU9X50_SCAN_MAGN_X)           \
+       | BIT(INV_MPU9X50_SCAN_MAGN_Y)          \
+       | BIT(INV_MPU9X50_SCAN_MAGN_Z))
+
 static const unsigned long inv_mpu9x50_scan_masks[] = {
        /* 3-axis accel */
-       BIT(INV_MPU6050_SCAN_ACCL_X)
-               | BIT(INV_MPU6050_SCAN_ACCL_Y)
-               | BIT(INV_MPU6050_SCAN_ACCL_Z),
+       INV_MPU6050_SCAN_MASK_3AXIS_ACCEL,
+       INV_MPU6050_SCAN_MASK_3AXIS_ACCEL | INV_MPU6050_SCAN_MASK_TEMP,
        /* 3-axis gyro */
-       BIT(INV_MPU6050_SCAN_GYRO_X)
-               | BIT(INV_MPU6050_SCAN_GYRO_Y)
-               | BIT(INV_MPU6050_SCAN_GYRO_Z),
+       INV_MPU6050_SCAN_MASK_3AXIS_GYRO,
+       INV_MPU6050_SCAN_MASK_3AXIS_GYRO | INV_MPU6050_SCAN_MASK_TEMP,
        /* 3-axis magn */
-       BIT(INV_MPU9X50_SCAN_MAGN_X)
-               | BIT(INV_MPU9X50_SCAN_MAGN_Y)
-               | BIT(INV_MPU9X50_SCAN_MAGN_Z),
+       INV_MPU9X50_SCAN_MASK_3AXIS_MAGN,
+       INV_MPU9X50_SCAN_MASK_3AXIS_MAGN | INV_MPU6050_SCAN_MASK_TEMP,
        /* 6-axis accel + gyro */
-       BIT(INV_MPU6050_SCAN_ACCL_X)
-               | BIT(INV_MPU6050_SCAN_ACCL_Y)
-               | BIT(INV_MPU6050_SCAN_ACCL_Z)
-               | BIT(INV_MPU6050_SCAN_GYRO_X)
-               | BIT(INV_MPU6050_SCAN_GYRO_Y)
-               | BIT(INV_MPU6050_SCAN_GYRO_Z),
+       INV_MPU6050_SCAN_MASK_3AXIS_ACCEL | INV_MPU6050_SCAN_MASK_3AXIS_GYRO,
+       INV_MPU6050_SCAN_MASK_3AXIS_ACCEL | INV_MPU6050_SCAN_MASK_3AXIS_GYRO
+               | INV_MPU6050_SCAN_MASK_TEMP,
        /* 6-axis accel + magn */
-       BIT(INV_MPU6050_SCAN_ACCL_X)
-               | BIT(INV_MPU6050_SCAN_ACCL_Y)
-               | BIT(INV_MPU6050_SCAN_ACCL_Z)
-               | BIT(INV_MPU9X50_SCAN_MAGN_X)
-               | BIT(INV_MPU9X50_SCAN_MAGN_Y)
-               | BIT(INV_MPU9X50_SCAN_MAGN_Z),
+       INV_MPU6050_SCAN_MASK_3AXIS_ACCEL | INV_MPU9X50_SCAN_MASK_3AXIS_MAGN,
+       INV_MPU6050_SCAN_MASK_3AXIS_ACCEL | INV_MPU9X50_SCAN_MASK_3AXIS_MAGN
+               | INV_MPU6050_SCAN_MASK_TEMP,
        /* 6-axis gyro + magn */
-       BIT(INV_MPU6050_SCAN_GYRO_X)
-               | BIT(INV_MPU6050_SCAN_GYRO_Y)
-               | BIT(INV_MPU6050_SCAN_GYRO_Z)
-               | BIT(INV_MPU9X50_SCAN_MAGN_X)
-               | BIT(INV_MPU9X50_SCAN_MAGN_Y)
-               | BIT(INV_MPU9X50_SCAN_MAGN_Z),
+       INV_MPU6050_SCAN_MASK_3AXIS_GYRO | INV_MPU9X50_SCAN_MASK_3AXIS_MAGN,
+       INV_MPU6050_SCAN_MASK_3AXIS_GYRO | INV_MPU9X50_SCAN_MASK_3AXIS_MAGN
+               | INV_MPU6050_SCAN_MASK_TEMP,
        /* 9-axis accel + gyro + magn */
-       BIT(INV_MPU6050_SCAN_ACCL_X)
-               | BIT(INV_MPU6050_SCAN_ACCL_Y)
-               | BIT(INV_MPU6050_SCAN_ACCL_Z)
-               | BIT(INV_MPU6050_SCAN_GYRO_X)
-               | BIT(INV_MPU6050_SCAN_GYRO_Y)
-               | BIT(INV_MPU6050_SCAN_GYRO_Z)
-               | BIT(INV_MPU9X50_SCAN_MAGN_X)
-               | BIT(INV_MPU9X50_SCAN_MAGN_Y)
-               | BIT(INV_MPU9X50_SCAN_MAGN_Z),
+       INV_MPU6050_SCAN_MASK_3AXIS_ACCEL | INV_MPU6050_SCAN_MASK_3AXIS_GYRO
+               | INV_MPU9X50_SCAN_MASK_3AXIS_MAGN,
+       INV_MPU6050_SCAN_MASK_3AXIS_ACCEL | INV_MPU6050_SCAN_MASK_3AXIS_GYRO
+               | INV_MPU9X50_SCAN_MASK_3AXIS_MAGN
+               | INV_MPU6050_SCAN_MASK_TEMP,
        0,
 };
 
-static const struct iio_chan_spec inv_icm20602_channels[] = {
-       IIO_CHAN_SOFT_TIMESTAMP(INV_ICM20602_SCAN_TIMESTAMP),
-       {
-               .type = IIO_TEMP,
-               .info_mask_separate = BIT(IIO_CHAN_INFO_RAW)
-                               | BIT(IIO_CHAN_INFO_OFFSET)
-                               | BIT(IIO_CHAN_INFO_SCALE),
-               .scan_index = INV_ICM20602_SCAN_TEMP,
-               .scan_type = {
-                               .sign = 's',
-                               .realbits = 16,
-                               .storagebits = 16,
-                               .shift = 0,
-                               .endianness = IIO_BE,
-                            },
-       },
-
-       INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_X, INV_ICM20602_SCAN_GYRO_X),
-       INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_Y, INV_ICM20602_SCAN_GYRO_Y),
-       INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_Z, INV_ICM20602_SCAN_GYRO_Z),
-
-       INV_MPU6050_CHAN(IIO_ACCEL, IIO_MOD_Y, INV_ICM20602_SCAN_ACCL_Y),
-       INV_MPU6050_CHAN(IIO_ACCEL, IIO_MOD_X, INV_ICM20602_SCAN_ACCL_X),
-       INV_MPU6050_CHAN(IIO_ACCEL, IIO_MOD_Z, INV_ICM20602_SCAN_ACCL_Z),
-};
-
 static const unsigned long inv_icm20602_scan_masks[] = {
        /* 3-axis accel + temp (mandatory) */
-       BIT(INV_ICM20602_SCAN_ACCL_X)
-               | BIT(INV_ICM20602_SCAN_ACCL_Y)
-               | BIT(INV_ICM20602_SCAN_ACCL_Z)
-               | BIT(INV_ICM20602_SCAN_TEMP),
+       INV_MPU6050_SCAN_MASK_3AXIS_ACCEL | INV_MPU6050_SCAN_MASK_TEMP,
        /* 3-axis gyro + temp (mandatory) */
-       BIT(INV_ICM20602_SCAN_GYRO_X)
-               | BIT(INV_ICM20602_SCAN_GYRO_Y)
-               | BIT(INV_ICM20602_SCAN_GYRO_Z)
-               | BIT(INV_ICM20602_SCAN_TEMP),
+       INV_MPU6050_SCAN_MASK_3AXIS_GYRO | INV_MPU6050_SCAN_MASK_TEMP,
        /* 6-axis accel + gyro + temp (mandatory) */
-       BIT(INV_ICM20602_SCAN_ACCL_X)
-               | BIT(INV_ICM20602_SCAN_ACCL_Y)
-               | BIT(INV_ICM20602_SCAN_ACCL_Z)
-               | BIT(INV_ICM20602_SCAN_GYRO_X)
-               | BIT(INV_ICM20602_SCAN_GYRO_Y)
-               | BIT(INV_ICM20602_SCAN_GYRO_Z)
-               | BIT(INV_ICM20602_SCAN_TEMP),
+       INV_MPU6050_SCAN_MASK_3AXIS_ACCEL | INV_MPU6050_SCAN_MASK_3AXIS_GYRO
+               | INV_MPU6050_SCAN_MASK_TEMP,
        0,
 };
 
@@ -1363,8 +1315,8 @@ int inv_mpu_core_probe(struct regmap *regmap, int irq, const char *name,
                indio_dev->available_scan_masks = inv_mpu9x50_scan_masks;
                break;
        case INV_ICM20602:
-               indio_dev->channels = inv_icm20602_channels;
-               indio_dev->num_channels = ARRAY_SIZE(inv_icm20602_channels);
+               indio_dev->channels = inv_mpu_channels;
+               indio_dev->num_channels = ARRAY_SIZE(inv_mpu_channels);
                indio_dev->available_scan_masks = inv_icm20602_scan_masks;
                break;
        default:

diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
index b096e010d4ee38ad4c2794ab2dd3508e963d5319..6158fca7f70e82eb499c47042478099a3c258467 100644 (file)
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
@@ -86,6 +86,7 @@ enum inv_devices {
  *  @accl_fs:          accel full scale range.
  *  @accl_fifo_enable: enable accel data output
  *  @gyro_fifo_enable: enable gyro data output
+ *  @temp_fifo_enable: enable temp data output
  *  @magn_fifo_enable: enable magn data output
  *  @divider:          chip sample rate divider (sample rate divider - 1)
  */
@@ -95,6 +96,7 @@ struct inv_mpu6050_chip_config {
        unsigned int accl_fs:2;
        unsigned int accl_fifo_enable:1;
        unsigned int gyro_fifo_enable:1;
+       unsigned int temp_fifo_enable:1;
        unsigned int magn_fifo_enable:1;
        u8 divider;
        u8 user_ctrl;
@@ -184,6 +186,7 @@ struct inv_mpu6050_state {
 #define INV_MPU6050_BIT_SLAVE_2             0x04
 #define INV_MPU6050_BIT_ACCEL_OUT           0x08
 #define INV_MPU6050_BITS_GYRO_OUT           0x70
+#define INV_MPU6050_BIT_TEMP_OUT            0x80
 
 #define INV_MPU6050_REG_I2C_MST_CTRL        0x24
 #define INV_MPU6050_BITS_I2C_MST_CLK_400KHZ 0x0D
@@ -268,8 +271,8 @@ struct inv_mpu6050_state {
 /* MPU9X50 9-axis magnetometer */
 #define INV_MPU9X50_BYTES_MAGN               7
 
-/* ICM20602 FIFO samples include temperature readings */
-#define INV_ICM20602_BYTES_PER_TEMP_SENSOR   2
+/* FIFO temperature sample size */
+#define INV_MPU6050_BYTES_PER_TEMP_SENSOR   2
 
 /* mpu6500 registers */
 #define INV_MPU6500_REG_ACCEL_CONFIG_2      0x1D
@@ -298,7 +301,7 @@ struct inv_mpu6050_state {
 #define INV_ICM20608_TEMP_OFFSET            8170
 #define INV_ICM20608_TEMP_SCALE                     3059976
 
-/* 6 + 6 + 7 (for MPU9x50) = 19 round up to 24 and plus 8 */
+/* 6 + 6 + 2 + 7 (for MPU9x50) = 21 round up to 24 and plus 8 */
 #define INV_MPU6050_OUTPUT_DATA_SIZE         32
 
 #define INV_MPU6050_REG_INT_PIN_CFG    0x37
@@ -344,6 +347,7 @@ enum inv_mpu6050_scan {
        INV_MPU6050_SCAN_ACCL_X,
        INV_MPU6050_SCAN_ACCL_Y,
        INV_MPU6050_SCAN_ACCL_Z,
+       INV_MPU6050_SCAN_TEMP,
        INV_MPU6050_SCAN_GYRO_X,
        INV_MPU6050_SCAN_GYRO_Y,
        INV_MPU6050_SCAN_GYRO_Z,
@@ -355,18 +359,6 @@ enum inv_mpu6050_scan {
        INV_MPU9X50_SCAN_TIMESTAMP,
 };
 
-/* scan element definition for ICM20602, which includes temperature */
-enum inv_icm20602_scan {
-       INV_ICM20602_SCAN_ACCL_X,
-       INV_ICM20602_SCAN_ACCL_Y,
-       INV_ICM20602_SCAN_ACCL_Z,
-       INV_ICM20602_SCAN_TEMP,
-       INV_ICM20602_SCAN_GYRO_X,
-       INV_ICM20602_SCAN_GYRO_Y,
-       INV_ICM20602_SCAN_GYRO_Z,
-       INV_ICM20602_SCAN_TIMESTAMP,
-};
-
 enum inv_mpu6050_filter_e {
        INV_MPU6050_FILTER_256HZ_NOLPF2 = 0,
        INV_MPU6050_FILTER_188HZ,

diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c
index 10d16ec5104b674c49cf248f5618bc6f20ad7903..3755577dc449d197a8863784aa0f541926b3a356 100644 (file)
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c
@@ -142,6 +142,8 @@ int inv_reset_fifo(struct iio_dev *indio_dev)
                d |= INV_MPU6050_BITS_GYRO_OUT;
        if (st->chip_config.accl_fifo_enable)
                d |= INV_MPU6050_BIT_ACCEL_OUT;
+       if (st->chip_config.temp_fifo_enable)
+               d |= INV_MPU6050_BIT_TEMP_OUT;
        if (st->chip_config.magn_fifo_enable)
                d |= INV_MPU6050_BIT_SLAVE_0;
        result = regmap_write(st->map, st->reg->fifo_en, d);
@@ -200,8 +202,8 @@ irqreturn_t inv_mpu6050_read_fifo(int irq, void *p)
        if (st->chip_config.gyro_fifo_enable)
                bytes_per_datum += INV_MPU6050_BYTES_PER_3AXIS_SENSOR;
 
-       if (st->chip_type == INV_ICM20602)
-               bytes_per_datum += INV_ICM20602_BYTES_PER_TEMP_SENSOR;
+       if (st->chip_config.temp_fifo_enable)
+               bytes_per_datum += INV_MPU6050_BYTES_PER_TEMP_SENSOR;
 
        if (st->chip_config.magn_fifo_enable)
                bytes_per_datum += INV_MPU9X50_BYTES_MAGN;

diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_trigger.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_trigger.c
index a9c75bc62f182125cc6fccfe960e5764a08be848..5199fe790c3057df30b8575e06374c3046017e90 100644 (file)
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_trigger.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_trigger.c
@@ -24,6 +24,9 @@ static void inv_scan_query_mpu6050(struct iio_dev *indio_dev)
                         indio_dev->active_scan_mask) ||
                test_bit(INV_MPU6050_SCAN_ACCL_Z,
                         indio_dev->active_scan_mask);
+
+       st->chip_config.temp_fifo_enable =
+               test_bit(INV_MPU6050_SCAN_TEMP, indio_dev->active_scan_mask);
 }
 
 static void inv_scan_query_mpu9x50(struct iio_dev *indio_dev)