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Merge 'ib-jz47xx-battery-prereq' into psy-next 

Merge immutable branch containing the IIO changes required
for the new Ingenic JZ47xx battery fuel gauge driver.

Signed-off-by: Sebastian Reichel <sre@kernel.org>
hifive-unleashed-5.2
Sebastian Reichel 2019-04-18 21:27:38 +02:00
parent c279adafe6 89388ca495
commit ec8242de40
2 changed files with 31 additions and 5 deletions
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22
drivers/iio/inkern.c
View File

@ -733,11 +733,11 @@ static int iio_channel_read_avail(struct iio_channel *chan,
vals, type, length, info);
}
int iio_read_avail_channel_raw(struct iio_channel *chan,
const int **vals, int *length)
int iio_read_avail_channel_attribute(struct iio_channel *chan,
const int **vals, int *type, int *length,
enum iio_chan_info_enum attribute)
{
int ret;
int type;
mutex_lock(&chan->indio_dev->info_exist_lock);
if (!chan->indio_dev->info) {
@ -745,11 +745,23 @@ int iio_read_avail_channel_raw(struct iio_channel *chan,
goto err_unlock;
}
ret = iio_channel_read_avail(chan,
vals, &type, length, IIO_CHAN_INFO_RAW);
ret = iio_channel_read_avail(chan, vals, type, length, attribute);
err_unlock:
mutex_unlock(&chan->indio_dev->info_exist_lock);
return ret;
}
EXPORT_SYMBOL_GPL(iio_read_avail_channel_attribute);
int iio_read_avail_channel_raw(struct iio_channel *chan,
const int **vals, int *length)
{
int ret;
int type;
ret = iio_read_avail_channel_attribute(chan, vals, &type, length,
IIO_CHAN_INFO_RAW);
if (ret >= 0 && type != IIO_VAL_INT)
/* raw values are assumed to be IIO_VAL_INT */
ret = -EINVAL;

14
include/linux/iio/consumer.h
View File

@ -290,6 +290,20 @@ int iio_read_max_channel_raw(struct iio_channel *chan, int *val);
int iio_read_avail_channel_raw(struct iio_channel *chan,
const int **vals, int *length);
/**
* iio_read_avail_channel_attribute() - read available channel attribute values
* @chan: The channel being queried.
* @vals: Available values read back.
* @type: Type of values read back.
* @length: Number of entries in vals.
* @attribute: info attribute to be read back.
*
* Returns an error code, IIO_AVAIL_RANGE or IIO_AVAIL_LIST.
*/
int iio_read_avail_channel_attribute(struct iio_channel *chan,
const int **vals, int *type, int *length,
enum iio_chan_info_enum attribute);
/**
* iio_get_channel_type() - get the type of a channel
* @channel: The channel being queried.