Re: [PATCH] iio: imu: inv_icm42600: fix timestamp reset

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Hi Jonathan,

the signed off is for the email address we are using for sending email to the mailing list.

We cannot use our personal email address, so we are obliged to use a dedicated service account for sending email with the git send-email tool.

Should I delete the signed-off corresponding to that email address?

Thanks,
JB


From: Jonathan Cameron <jic23@xxxxxxxxxx>
Sent: Saturday, May 6, 2023 20:10
To: INV Git Commit <INV.git-commit@xxxxxxx>
Cc: linux-iio@xxxxxxxxxxxxxxx <linux-iio@xxxxxxxxxxxxxxx>; lars@xxxxxxxxxx <lars@xxxxxxxxxx>; Jean-Baptiste Maneyrol <Jean-Baptiste.Maneyrol@xxxxxxx>; stable@xxxxxxxxxxxxxxx <stable@xxxxxxxxxxxxxxx>
Subject: Re: [PATCH] iio: imu: inv_icm42600: fix timestamp reset 
 
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======================================================================
On Wed,  3 May 2023 20:44:10 +0000
inv.git-commit@xxxxxxx wrote:

> From: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@xxxxxxx>
> 
> Timestamp reset is not done in the correct place. It must be done
> before enabling buffer. The reason is that interrupt timestamping
> is always happening when the chip is on, even if the
> corresponding sensor is off. When the sensor restarts, timestamp
> is wrong if you don't do a reset first.
> 
> Fixes: ec74ae9fd37c ("iio: imu: inv_icm42600: add accurate timestamping")
> Signed-off-by: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@xxxxxxx>
> Signed-off-by: <inv.git-commit@xxxxxxx>

What's this sign off?  

> Cc: <stable@xxxxxxxxxxxxxxx>

Otherwise patch looks fine.

Jonathan

> ---
>  drivers/iio/imu/inv_icm42600/inv_icm42600_buffer.c | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600_buffer.c b/drivers/iio/imu/inv_icm42600/inv_icm42600_buffer.c
> index 99576b2c171f..32d7f8364230 100644
> --- a/drivers/iio/imu/inv_icm42600/inv_icm42600_buffer.c
> +++ b/drivers/iio/imu/inv_icm42600/inv_icm42600_buffer.c
> @@ -275,9 +275,14 @@ static int inv_icm42600_buffer_preenable(struct iio_dev *indio_dev)
>  {
>        struct inv_icm42600_state *st = iio_device_get_drvdata(indio_dev);
>        struct device *dev = regmap_get_device(st->map);
> +     struct inv_icm42600_timestamp *ts = iio_priv(indio_dev);
>  
>        pm_runtime_get_sync(dev);
>  
> +     mutex_lock(&st->lock);
> +     inv_icm42600_timestamp_reset(ts);
> +     mutex_unlock(&st->lock);
> +
>        return 0;
>  }
>  
> @@ -375,7 +380,6 @@ static int inv_icm42600_buffer_postdisable(struct iio_dev *indio_dev)
>        struct device *dev = regmap_get_device(st->map);
>        unsigned int sensor;
>        unsigned int *watermark;
> -     struct inv_icm42600_timestamp *ts;
>        struct inv_icm42600_sensor_conf conf = INV_ICM42600_SENSOR_CONF_INIT;
>        unsigned int sleep_temp = 0;
>        unsigned int sleep_sensor = 0;
> @@ -385,11 +389,9 @@ static int inv_icm42600_buffer_postdisable(struct iio_dev *indio_dev)
>        if (indio_dev == st->indio_gyro) {
>                sensor = INV_ICM42600_SENSOR_GYRO;
>                watermark = &st->fifo.watermark.gyro;
> -             ts = iio_priv(st->indio_gyro);
>        } else if (indio_dev == st->indio_accel) {
>                sensor = INV_ICM42600_SENSOR_ACCEL;
>                watermark = &st->fifo.watermark.accel;
> -             ts = iio_priv(st->indio_accel);
>        } else {
>                return -EINVAL;
>        }
> @@ -417,8 +419,6 @@ static int inv_icm42600_buffer_postdisable(struct iio_dev *indio_dev)
>        if (!st->fifo.on)
>                ret = inv_icm42600_set_temp_conf(st, false, &sleep_temp);
>  
> -     inv_icm42600_timestamp_reset(ts);
> -
>  out_unlock:
>        mutex_unlock(&st->lock);
>  




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