mirror of
https://github.com/torvalds/linux.git
synced 2024-12-05 10:32:35 +00:00
iio:temperature:tmp006 put sampling_frequency in info_mask_shared_by_all
Doing this makes it possible to access this control from within the kernel. Signed-off-by: Jonathan Cameron <jic23@kernel.org> Acked-by: Peter Meerwald <pmeerw@pmeerw.net> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
This commit is contained in:
parent
6a63aa0a09
commit
da1690e6ca
@ -70,12 +70,16 @@ static int tmp006_read_measurement(struct tmp006_data *data, u8 reg)
|
||||
return i2c_smbus_read_word_swapped(data->client, reg);
|
||||
}
|
||||
|
||||
static const int tmp006_freqs[5][2] = { {4, 0}, {2, 0}, {1, 0},
|
||||
{0, 500000}, {0, 250000} };
|
||||
|
||||
static int tmp006_read_raw(struct iio_dev *indio_dev,
|
||||
struct iio_chan_spec const *channel, int *val,
|
||||
int *val2, long mask)
|
||||
{
|
||||
struct tmp006_data *data = iio_priv(indio_dev);
|
||||
s32 ret;
|
||||
int cr;
|
||||
|
||||
switch (mask) {
|
||||
case IIO_CHAN_INFO_RAW:
|
||||
@ -106,6 +110,12 @@ static int tmp006_read_raw(struct iio_dev *indio_dev,
|
||||
break;
|
||||
}
|
||||
return IIO_VAL_INT_PLUS_MICRO;
|
||||
case IIO_CHAN_INFO_SAMP_FREQ:
|
||||
cr = (data->config & TMP006_CONFIG_CR_MASK)
|
||||
>> TMP006_CONFIG_CR_SHIFT;
|
||||
*val = tmp006_freqs[cr][0];
|
||||
*val2 = tmp006_freqs[cr][1];
|
||||
return IIO_VAL_INT_PLUS_MICRO;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
@ -113,48 +123,32 @@ static int tmp006_read_raw(struct iio_dev *indio_dev,
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
static const char * const tmp006_freqs[] = { "4", "2", "1", "0.5", "0.25" };
|
||||
|
||||
static ssize_t tmp006_show_freq(struct device *dev,
|
||||
struct device_attribute *attr, char *buf)
|
||||
static int tmp006_write_raw(struct iio_dev *indio_dev,
|
||||
struct iio_chan_spec const *chan,
|
||||
int val,
|
||||
int val2,
|
||||
long mask)
|
||||
{
|
||||
struct tmp006_data *data = iio_priv(dev_to_iio_dev(dev));
|
||||
int cr = (data->config & TMP006_CONFIG_CR_MASK)
|
||||
>> TMP006_CONFIG_CR_SHIFT;
|
||||
return sprintf(buf, "%s\n", tmp006_freqs[cr]);
|
||||
}
|
||||
|
||||
static ssize_t tmp006_store_freq(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
const char *buf, size_t len)
|
||||
{
|
||||
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
|
||||
struct tmp006_data *data = iio_priv(indio_dev);
|
||||
int i;
|
||||
bool found = false;
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(tmp006_freqs); i++)
|
||||
if (sysfs_streq(buf, tmp006_freqs[i])) {
|
||||
found = true;
|
||||
break;
|
||||
if ((val == tmp006_freqs[i][0]) &&
|
||||
(val2 == tmp006_freqs[i][1])) {
|
||||
data->config &= ~TMP006_CONFIG_CR_MASK;
|
||||
data->config |= i << TMP006_CONFIG_CR_SHIFT;
|
||||
|
||||
return i2c_smbus_write_word_swapped(data->client,
|
||||
TMP006_CONFIG,
|
||||
data->config);
|
||||
|
||||
}
|
||||
if (!found)
|
||||
return -EINVAL;
|
||||
|
||||
data->config &= ~TMP006_CONFIG_CR_MASK;
|
||||
data->config |= i << TMP006_CONFIG_CR_SHIFT;
|
||||
|
||||
return i2c_smbus_write_word_swapped(data->client, TMP006_CONFIG,
|
||||
data->config);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
static IIO_DEV_ATTR_SAMP_FREQ(S_IRUGO | S_IWUSR,
|
||||
tmp006_show_freq, tmp006_store_freq);
|
||||
|
||||
static IIO_CONST_ATTR(sampling_frequency_available, "4 2 1 0.5 0.25");
|
||||
|
||||
static struct attribute *tmp006_attributes[] = {
|
||||
&iio_dev_attr_sampling_frequency.dev_attr.attr,
|
||||
&iio_const_attr_sampling_frequency_available.dev_attr.attr,
|
||||
NULL
|
||||
};
|
||||
@ -168,16 +162,19 @@ static const struct iio_chan_spec tmp006_channels[] = {
|
||||
.type = IIO_VOLTAGE,
|
||||
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
|
||||
BIT(IIO_CHAN_INFO_SCALE),
|
||||
.info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SAMP_FREQ),
|
||||
},
|
||||
{
|
||||
.type = IIO_TEMP,
|
||||
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
|
||||
BIT(IIO_CHAN_INFO_SCALE),
|
||||
.info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SAMP_FREQ),
|
||||
}
|
||||
};
|
||||
|
||||
static const struct iio_info tmp006_info = {
|
||||
.read_raw = tmp006_read_raw,
|
||||
.write_raw = tmp006_write_raw,
|
||||
.attrs = &tmp006_attribute_group,
|
||||
.driver_module = THIS_MODULE,
|
||||
};
|
||||
|
Loading…
Reference in New Issue
Block a user