On 25/08/16 07:44, Matt Ranostay wrote:
> Signed-off-by: Matt Ranostay <mranostay@xxxxxxxxx>
Applied to the togreg branch of iio.git.
Initially pushed out as testing for the autobuilders to
play with it.
Thanks,
Jonathan
> ---
> drivers/iio/chemical/vz89x.c | 8 ++++++--
> 1 file changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/iio/chemical/vz89x.c b/drivers/iio/chemical/vz89x.c
> index 289d2919deea..cd3870ead3fd 100644
> --- a/drivers/iio/chemical/vz89x.c
> +++ b/drivers/iio/chemical/vz89x.c
> @@ -55,6 +55,7 @@ struct vz89x_data {
> struct mutex lock;
> int (*xfer)(struct vz89x_data *data, u8 cmd);
>
> + bool is_valid;
> unsigned long last_update;
> u8 buffer[VZ89TE_REG_MEASUREMENT_RD_SIZE];
> };
> @@ -229,7 +230,10 @@ static int vz89x_get_measurement(struct vz89x_data *data)
>
> /* sensor can only be polled once a second max per datasheet */
> if (!time_after(jiffies, data->last_update + HZ))
> - return 0;
> + return data->is_valid ? 0 : -EAGAIN;
> +
> + data->is_valid = false;
> + data->last_update = jiffies;
>
> ret = data->xfer(data, chip->cmd);
> if (ret < 0)
> @@ -239,7 +243,7 @@ static int vz89x_get_measurement(struct vz89x_data *data)
> if (ret)
> return -EAGAIN;
>
> - data->last_update = jiffies;
> + data->is_valid = true;
>
> return 0;
> }
>
--
To unsubscribe from this list: send the line "unsubscribe linux-iio" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
