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yaml
---
r: 268733
b: refs/heads/master
c: 199d847
h: refs/heads/master
i:
  268731: 29b3537
v: v3
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Jonathan Cameron authored and Greg Kroah-Hartman committed Oct 5, 2011
1 parent 1ddee4e commit 4ebf205
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Showing 2 changed files with 19 additions and 24 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 19147f5bc636a44eade7e9af5a27cd000e5cd070
refs/heads/master: 199d847a2d89e5ccfca991092c1fb1cae3743f58
41 changes: 18 additions & 23 deletions trunk/drivers/staging/iio/resolver/ad2s90.c
Original file line number Diff line number Diff line change
Expand Up @@ -25,45 +25,38 @@ struct ad2s90_state {
u8 rx[2] ____cacheline_aligned;
};

static ssize_t ad2s90_show_angular(struct device *dev,
struct device_attribute *attr, char *buf)
static int ad2s90_read_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan,
int *val,
int *val2,
long m)
{
int ret;
ssize_t len = 0;
u16 val;
struct ad2s90_state *st = iio_priv(dev_get_drvdata(dev));
struct ad2s90_state *st = iio_priv(indio_dev);

mutex_lock(&st->lock);
ret = spi_read(st->sdev, st->rx, 2);
if (ret)
goto error_ret;
val = (((u16)(st->rx[0])) << 4) | ((st->rx[1] & 0xF0) >> 4);
len = sprintf(buf, "%d\n", val);
*val = (((u16)(st->rx[0])) << 4) | ((st->rx[1] & 0xF0) >> 4);

error_ret:
mutex_unlock(&st->lock);

return ret ? ret : len;
return IIO_VAL_INT;
}

#define IIO_DEV_ATTR_SIMPLE_RESOLVER(_show) \
IIO_DEVICE_ATTR(angular, S_IRUGO, _show, NULL, 0)

static IIO_DEV_ATTR_SIMPLE_RESOLVER(ad2s90_show_angular);

static struct attribute *ad2s90_attributes[] = {
&iio_dev_attr_angular.dev_attr.attr,
NULL,
};

static const struct attribute_group ad2s90_attribute_group = {
.attrs = ad2s90_attributes,
};

static const struct iio_info ad2s90_info = {
.attrs = &ad2s90_attribute_group,
.read_raw = &ad2s90_read_raw,
.driver_module = THIS_MODULE,
};

static const struct iio_chan_spec ad2s90_chan = {
.type = IIO_ANGL,
.indexed = 1,
.channel = 0,
};

static int __devinit ad2s90_probe(struct spi_device *spi)
{
struct iio_dev *indio_dev;
Expand All @@ -83,6 +76,8 @@ static int __devinit ad2s90_probe(struct spi_device *spi)
indio_dev->dev.parent = &spi->dev;
indio_dev->info = &ad2s90_info;
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->channels = &ad2s90_chan;
indio_dev->num_channels = 1;
indio_dev->name = spi_get_device_id(spi)->name;

ret = iio_device_register(indio_dev);
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