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| author | Crt Mori <cmo@melexis.com> | 2022-09-06 13:26:32 +0200 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2022-09-21 18:42:53 +0100 |
| commit | d9d0c0725ae2798bd51f38ae26c2477f6eed40b3 (patch) | |
| tree | 91307b81454d127d7429ee755360dda5f3bc0fea /drivers/iio/temperature | |
| parent | a7a1c60bc4c9159aa3a4cb3e1814145666c3a00c (diff) | |
| download | lwn-d9d0c0725ae2798bd51f38ae26c2477f6eed40b3.tar.gz lwn-d9d0c0725ae2798bd51f38ae26c2477f6eed40b3.zip | |
iio: temperature: mlx90614 Refactoring available filter attributes
Change/refactor to the new way of defining available attribute values.
Signed-off-by: Crt Mori <cmo@melexis.com>
Link: https://lore.kernel.org/r/20220906112632.244453-1-cmo@melexis.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/temperature')
| -rw-r--r-- | drivers/iio/temperature/mlx90614.c | 41 |
1 files changed, 30 insertions, 11 deletions
diff --git a/drivers/iio/temperature/mlx90614.c b/drivers/iio/temperature/mlx90614.c index c253a5315988..3157416be912 100644 --- a/drivers/iio/temperature/mlx90614.c +++ b/drivers/iio/temperature/mlx90614.c @@ -79,16 +79,15 @@ struct mlx90614_data { /* Bandwidth values for IIR filtering */ static const int mlx90614_iir_values[] = {77, 31, 20, 15, 723, 153, 110, 86}; -static IIO_CONST_ATTR(in_temp_object_filter_low_pass_3db_frequency_available, - "0.15 0.20 0.31 0.77 0.86 1.10 1.53 7.23"); - -static struct attribute *mlx90614_attributes[] = { - &iio_const_attr_in_temp_object_filter_low_pass_3db_frequency_available.dev_attr.attr, - NULL, -}; - -static const struct attribute_group mlx90614_attr_group = { - .attrs = mlx90614_attributes, +static const int mlx90614_freqs[][2] = { + {0, 150000}, + {0, 200000}, + {0, 310000}, + {0, 770000}, + {0, 860000}, + {1, 100000}, + {1, 530000}, + {7, 230000} }; /* @@ -373,6 +372,22 @@ static int mlx90614_write_raw_get_fmt(struct iio_dev *indio_dev, } } +static int mlx90614_read_avail(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + const int **vals, int *type, int *length, + long mask) +{ + switch (mask) { + case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY: + *vals = (int *)mlx90614_freqs; + *type = IIO_VAL_INT_PLUS_MICRO; + *length = 2 * ARRAY_SIZE(mlx90614_freqs); + return IIO_AVAIL_LIST; + default: + return -EINVAL; + } +} + static const struct iio_chan_spec mlx90614_channels[] = { { .type = IIO_TEMP, @@ -389,6 +404,8 @@ static const struct iio_chan_spec mlx90614_channels[] = { .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_CALIBEMISSIVITY) | BIT(IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY), + .info_mask_separate_available = + BIT(IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY), .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) | BIT(IIO_CHAN_INFO_SCALE), }, @@ -401,6 +418,8 @@ static const struct iio_chan_spec mlx90614_channels[] = { .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_CALIBEMISSIVITY) | BIT(IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY), + .info_mask_separate_available = + BIT(IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY), .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) | BIT(IIO_CHAN_INFO_SCALE), }, @@ -410,7 +429,7 @@ static const struct iio_info mlx90614_info = { .read_raw = mlx90614_read_raw, .write_raw = mlx90614_write_raw, .write_raw_get_fmt = mlx90614_write_raw_get_fmt, - .attrs = &mlx90614_attr_group, + .read_avail = mlx90614_read_avail, }; #ifdef CONFIG_PM |