On Thu, 5 Oct 2017 10:37:46 +0800
Phil Reid <preid@xxxxxxxxxxxxxxxxx> wrote:
> This is done by calling a generic write attribute helper similar
> to the existing read attribute helper. Update write raw helper
> to use new write attribute function.
>
> Signed-off-by: Phil Reid <preid@xxxxxxxxxxxxxxxxx>
> ---
> drivers/iio/inkern.c | 17 +++++++++++++++--
> include/linux/iio/consumer.h | 9 +++++++++
> 2 files changed, 24 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c
> index 069defc..51c5c967 100644
> --- a/drivers/iio/inkern.c
> +++ b/drivers/iio/inkern.c
> @@ -850,7 +850,9 @@ static int iio_channel_write(struct iio_channel *chan, int val, int val2,
> chan->channel, val, val2, info);
> }
>
> -int iio_write_channel_raw(struct iio_channel *chan, int val)
> +static int iio_write_channel_attribute(struct iio_channel *chan,
> + int val, int val2,
> + enum iio_chan_info_enum attribute)
> {
> int ret;
>
> @@ -860,14 +862,25 @@ int iio_write_channel_raw(struct iio_channel *chan, int val)
> goto err_unlock;
> }
>
> - ret = iio_channel_write(chan, val, 0, IIO_CHAN_INFO_RAW);
> + ret = iio_channel_write(chan, val, val2, attribute);
> err_unlock:
> mutex_unlock(&chan->indio_dev->info_exist_lock);
>
> return ret;
> }
> +
> +int iio_write_channel_raw(struct iio_channel *chan, int val)
> +{
> + return iio_write_channel_attribute(chan, val, 0, IIO_CHAN_INFO_RAW);
> +}
> EXPORT_SYMBOL_GPL(iio_write_channel_raw);
>
> +int iio_write_channel_enable(struct iio_channel *chan, int val)
> +{
> + return iio_write_channel_attribute(chan, val, 0, IIO_CHAN_INFO_ENABLE);
> +}
> +EXPORT_SYMBOL_GPL(iio_write_channel_enable);
> +
> unsigned int iio_get_channel_ext_info_count(struct iio_channel *chan)
> {
> const struct iio_chan_spec_ext_info *ext_info;
> diff --git a/include/linux/iio/consumer.h b/include/linux/iio/consumer.h
> index 5e347a9..4a5a90d 100644
> --- a/include/linux/iio/consumer.h
> +++ b/include/linux/iio/consumer.h
> @@ -226,6 +226,15 @@ int iio_read_channel_raw(struct iio_channel *chan,
> int iio_write_channel_raw(struct iio_channel *chan, int val);
>
> /**
> + * iio_write_channel_enable() - enable a given channel
> + * @chan: The channel being queried.
> + * @val: Value being written.
> + *
> + * Enable / disable the channel.
> + */
> +int iio_write_channel_enable(struct iio_channel *chan, int val);
> +
> +/**
> * iio_read_max_channel_raw() - read maximum available raw value from a given
> * channel, i.e. the maximum possible value.
> * @chan: The channel being queried.
--
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