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Second round of IIO fixes for the 3.14 cycle. 

Another mixed bag, including some that were not in round 1 because
 they applied to elements that went in during the merge window whereas
 round 1 predated that.  I have been effectively out of action for 3 weeks
 so will take a little while to catch up with my backlog.
 
 * mag3110 - report busy in read_raw / write_raw when buffered capture
   is underway to avoid either changing the characteristics of the capture or
   causing capture issues by reading data destined for the buffer.
 * mag3110 - fix a failure to specify leading zeros when formatting a decimal
   number.
 * lradc - fix a buffer overflow and incorrect reporting of scale for voltage
   channel 15
 * lradc - drop some scale_available attributes for elements that don't actually
   exist.  These could otherwise cause some interesting issues for userspace.
 * ad799x - a typo in the events information mask resulted in some nasty crashes
   on failed probes.
 * ak8975 - fix scale attribute output to avoid incorrect intepretation of
   readings in userspace.
 * adis16400 - make sure the timestamp is the last element in all channel_spec
   arrays as this assumption is made by the buffer filling code, but was not
   true previously.
 * bma180 - correctly use modifiers to distinguish the channels rather than
   indexes.  This brings the abi inline with the standard option for 3 axis
   accelerometers.
 * max1363 - use devm_regulator_get_optional instead of the non optional case
   to allow the device to successfully probe when a regulator is not specified.
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Merge tag 'iio-fixes-for-3.14b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

Second round of IIO fixes for the 3.14 cycle.

Another mixed bag, including some that were not in round 1 because
they applied to elements that went in during the merge window whereas
round 1 predated that.  I have been effectively out of action for 3 weeks
so will take a little while to catch up with my backlog.

* mag3110 - report busy in read_raw / write_raw when buffered capture
  is underway to avoid either changing the characteristics of the capture or
  causing capture issues by reading data destined for the buffer.
* mag3110 - fix a failure to specify leading zeros when formatting a decimal
  number.
* lradc - fix a buffer overflow and incorrect reporting of scale for voltage
  channel 15
* lradc - drop some scale_available attributes for elements that don't actually
  exist.  These could otherwise cause some interesting issues for userspace.
* ad799x - a typo in the events information mask resulted in some nasty crashes
  on failed probes.
* ak8975 - fix scale attribute output to avoid incorrect intepretation of
  readings in userspace.
* adis16400 - make sure the timestamp is the last element in all channel_spec
  arrays as this assumption is made by the buffer filling code, but was not
  true previously.
* bma180 - correctly use modifiers to distinguish the channels rather than
  indexes.  This brings the abi inline with the standard option for 3 axis
  accelerometers.
* max1363 - use devm_regulator_get_optional instead of the non optional case
  to allow the device to successfully probe when a regulator is not specified.
This commit is contained in:
Greg Kroah-Hartman 2014-02-08 13:29:18 -08:00
parent 6b89db36b3 55b40d3731
commit a0f4525202
8 changed files with 33 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
drivers/iio/accel/bma180.c
View File

@ -447,14 +447,14 @@ static const struct iio_chan_spec_ext_info bma180_ext_info[] = {
{ },
};
#define BMA180_CHANNEL(_index) { \
#define BMA180_CHANNEL(_axis) { \
.type = IIO_ACCEL, \
.indexed = 1, \
.channel = (_index), \
.modified = 1, \
.channel2 = IIO_MOD_##_axis, \
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
BIT(IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY), \
.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \
.scan_index = (_index), \
.scan_index = AXIS_##_axis, \
.scan_type = { \
.sign = 's', \
.realbits = 14, \
@ -465,10 +465,10 @@ static const struct iio_chan_spec_ext_info bma180_ext_info[] = {
}
static const struct iio_chan_spec bma180_channels[] = {
BMA180_CHANNEL(AXIS_X),
BMA180_CHANNEL(AXIS_Y),
BMA180_CHANNEL(AXIS_Z),
IIO_CHAN_SOFT_TIMESTAMP(4),
BMA180_CHANNEL(X),
BMA180_CHANNEL(Y),
BMA180_CHANNEL(Z),
IIO_CHAN_SOFT_TIMESTAMP(3),
};
static irqreturn_t bma180_trigger_handler(int irq, void *p)

2
drivers/iio/adc/max1363.c
View File

@ -1560,7 +1560,7 @@ static int max1363_probe(struct i2c_client *client,
st->client = client;
st->vref_uv = st->chip_info->int_vref_mv * 1000;
vref = devm_regulator_get(&client->dev, "vref");
vref = devm_regulator_get_optional(&client->dev, "vref");
if (!IS_ERR(vref)) {
int vref_uv;

1
drivers/iio/imu/adis16400.h
View File

@ -189,6 +189,7 @@ enum {
ADIS16300_SCAN_INCLI_X,
ADIS16300_SCAN_INCLI_Y,
ADIS16400_SCAN_ADC,
ADIS16400_SCAN_TIMESTAMP,
};
#ifdef CONFIG_IIO_BUFFER

10
drivers/iio/imu/adis16400_core.c
View File

@ -632,7 +632,7 @@ static const struct iio_chan_spec adis16400_channels[] = {
ADIS16400_MAGN_CHAN(Z, ADIS16400_ZMAGN_OUT, 14),
ADIS16400_TEMP_CHAN(ADIS16400_TEMP_OUT, 12),
ADIS16400_AUX_ADC_CHAN(ADIS16400_AUX_ADC, 12),
IIO_CHAN_SOFT_TIMESTAMP(12)
IIO_CHAN_SOFT_TIMESTAMP(ADIS16400_SCAN_TIMESTAMP),
};
static const struct iio_chan_spec adis16448_channels[] = {
@ -659,7 +659,7 @@ static const struct iio_chan_spec adis16448_channels[] = {
},
},
ADIS16400_TEMP_CHAN(ADIS16448_TEMP_OUT, 12),
IIO_CHAN_SOFT_TIMESTAMP(11)
IIO_CHAN_SOFT_TIMESTAMP(ADIS16400_SCAN_TIMESTAMP),
};
static const struct iio_chan_spec adis16350_channels[] = {
@ -677,7 +677,7 @@ static const struct iio_chan_spec adis16350_channels[] = {
ADIS16400_MOD_TEMP_CHAN(X, ADIS16350_XTEMP_OUT, 12),
ADIS16400_MOD_TEMP_CHAN(Y, ADIS16350_YTEMP_OUT, 12),
ADIS16400_MOD_TEMP_CHAN(Z, ADIS16350_ZTEMP_OUT, 12),
IIO_CHAN_SOFT_TIMESTAMP(11)
IIO_CHAN_SOFT_TIMESTAMP(ADIS16400_SCAN_TIMESTAMP),
};
static const struct iio_chan_spec adis16300_channels[] = {
@ -690,7 +690,7 @@ static const struct iio_chan_spec adis16300_channels[] = {
ADIS16400_AUX_ADC_CHAN(ADIS16300_AUX_ADC, 12),
ADIS16400_INCLI_CHAN(X, ADIS16300_PITCH_OUT, 13),
ADIS16400_INCLI_CHAN(Y, ADIS16300_ROLL_OUT, 13),
IIO_CHAN_SOFT_TIMESTAMP(14)
IIO_CHAN_SOFT_TIMESTAMP(ADIS16400_SCAN_TIMESTAMP),
};
static const struct iio_chan_spec adis16334_channels[] = {
@ -701,7 +701,7 @@ static const struct iio_chan_spec adis16334_channels[] = {
ADIS16400_ACCEL_CHAN(Y, ADIS16400_YACCL_OUT, 14),
ADIS16400_ACCEL_CHAN(Z, ADIS16400_ZACCL_OUT, 14),
ADIS16400_TEMP_CHAN(ADIS16350_XTEMP_OUT, 12),
IIO_CHAN_SOFT_TIMESTAMP(8)
IIO_CHAN_SOFT_TIMESTAMP(ADIS16400_SCAN_TIMESTAMP),
};
static struct attribute *adis16400_attributes[] = {

16
drivers/iio/magnetometer/ak8975.c
View File

@ -85,6 +85,7 @@
#define AK8975_MAX_CONVERSION_TIMEOUT 500
#define AK8975_CONVERSION_DONE_POLL_TIME 10
#define AK8975_DATA_READY_TIMEOUT ((100*HZ)/1000)
#define RAW_TO_GAUSS(asa) ((((asa) + 128) * 3000) / 256)
/*
* Per-instance context data for the device.
@ -265,15 +266,15 @@ static int ak8975_setup(struct i2c_client *client)
*
* Since 1uT = 0.01 gauss, our final scale factor becomes:
*
* Hadj = H * ((ASA + 128) / 256) * 3/10 * 100
* Hadj = H * ((ASA + 128) * 30 / 256
* Hadj = H * ((ASA + 128) / 256) * 3/10 * 1/100
* Hadj = H * ((ASA + 128) * 0.003) / 256
*
* Since ASA doesn't change, we cache the resultant scale factor into the
* device context in ak8975_setup().
*/
data->raw_to_gauss[0] = ((data->asa[0] + 128) * 30) >> 8;
data->raw_to_gauss[1] = ((data->asa[1] + 128) * 30) >> 8;
data->raw_to_gauss[2] = ((data->asa[2] + 128) * 30) >> 8;
data->raw_to_gauss[0] = RAW_TO_GAUSS(data->asa[0]);
data->raw_to_gauss[1] = RAW_TO_GAUSS(data->asa[1]);
data->raw_to_gauss[2] = RAW_TO_GAUSS(data->asa[2]);
return 0;
}
@ -428,8 +429,9 @@ static int ak8975_read_raw(struct iio_dev *indio_dev,
case IIO_CHAN_INFO_RAW:
return ak8975_read_axis(indio_dev, chan->address, val);
case IIO_CHAN_INFO_SCALE:
*val = data->raw_to_gauss[chan->address];
return IIO_VAL_INT;
*val = 0;
*val2 = data->raw_to_gauss[chan->address];
return IIO_VAL_INT_PLUS_MICRO;
}
return -EINVAL;
}

8
drivers/iio/magnetometer/mag3110.c
View File

@ -106,7 +106,7 @@ static ssize_t mag3110_show_int_plus_micros(char *buf,
while (n-- > 0)
len += scnprintf(buf + len, PAGE_SIZE - len,
"%d.%d ", vals[n][0], vals[n][1]);
"%d.%06d ", vals[n][0], vals[n][1]);
/* replace trailing space by newline */
buf[len - 1] = '\n';
@ -154,6 +154,9 @@ static int mag3110_read_raw(struct iio_dev *indio_dev,
switch (mask) {
case IIO_CHAN_INFO_RAW:
if (iio_buffer_enabled(indio_dev))
return -EBUSY;
switch (chan->type) {
case IIO_MAGN: /* in 0.1 uT / LSB */
ret = mag3110_read(data, buffer);
@ -199,6 +202,9 @@ static int mag3110_write_raw(struct iio_dev *indio_dev,
struct mag3110_data *data = iio_priv(indio_dev);
int rate;
if (iio_buffer_enabled(indio_dev))
return -EBUSY;
switch (mask) {
case IIO_CHAN_INFO_SAMP_FREQ:
rate = mag3110_get_samp_freq_index(data, val, val2);

2
drivers/staging/iio/adc/ad799x_core.c
View File

@ -393,7 +393,7 @@ static const struct iio_event_spec ad799x_events[] = {
}, {
.type = IIO_EV_TYPE_THRESH,
.dir = IIO_EV_DIR_FALLING,
.mask_separate = BIT(IIO_EV_INFO_VALUE),
.mask_separate = BIT(IIO_EV_INFO_VALUE) |
BIT(IIO_EV_INFO_ENABLE),
}, {
.type = IIO_EV_TYPE_THRESH,

6
drivers/staging/iio/adc/mxs-lradc.c
View File

@ -1035,8 +1035,6 @@ SHOW_SCALE_AVAILABLE_ATTR(4);
SHOW_SCALE_AVAILABLE_ATTR(5);
SHOW_SCALE_AVAILABLE_ATTR(6);
SHOW_SCALE_AVAILABLE_ATTR(7);
SHOW_SCALE_AVAILABLE_ATTR(8);
SHOW_SCALE_AVAILABLE_ATTR(9);
SHOW_SCALE_AVAILABLE_ATTR(10);
SHOW_SCALE_AVAILABLE_ATTR(11);
SHOW_SCALE_AVAILABLE_ATTR(12);
@ -1053,8 +1051,6 @@ static struct attribute *mxs_lradc_attributes[] = {
&iio_dev_attr_in_voltage5_scale_available.dev_attr.attr,
&iio_dev_attr_in_voltage6_scale_available.dev_attr.attr,
&iio_dev_attr_in_voltage7_scale_available.dev_attr.attr,
&iio_dev_attr_in_voltage8_scale_available.dev_attr.attr,
&iio_dev_attr_in_voltage9_scale_available.dev_attr.attr,
&iio_dev_attr_in_voltage10_scale_available.dev_attr.attr,
&iio_dev_attr_in_voltage11_scale_available.dev_attr.attr,
&iio_dev_attr_in_voltage12_scale_available.dev_attr.attr,
@ -1613,7 +1609,7 @@ static int mxs_lradc_probe(struct platform_device *pdev)
* of the array.
*/
scale_uv = ((u64)lradc->vref_mv[i] * 100000000) >>
(iio->channels[i].scan_type.realbits - s);
(LRADC_RESOLUTION - s);
lradc->scale_avail[i][s].nano =
do_div(scale_uv, 100000000) * 10;
lradc->scale_avail[i][s].integer = scale_uv;