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yaml
---
r: 249840
b: refs/heads/master
c: 9308bc9
h: refs/heads/master
v: v3
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Michael Hennerich authored and Greg Kroah-Hartman committed May 19, 2011
1 parent 9e82401 commit 65bf819
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Showing 2 changed files with 19 additions and 11 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: fb7f6ccac2a0651f458f8027dad5d31c9be3fff3
refs/heads/master: 9308bc9af00dc49919bfba58c23ae5225404064d
28 changes: 18 additions & 10 deletions trunk/drivers/staging/iio/meter/ade7758_core.c
Original file line number Diff line number Diff line change
Expand Up @@ -533,7 +533,6 @@ static ssize_t ade7758_write_frequency(struct device *dev,
size_t len)
{
struct iio_dev *indio_dev = dev_get_drvdata(dev);
struct ade7758_state *st = iio_dev_get_devdata(indio_dev);
unsigned long val;
int ret;
u8 reg, t;
Expand All @@ -544,14 +543,23 @@ static ssize_t ade7758_write_frequency(struct device *dev,

mutex_lock(&indio_dev->mlock);

t = (26040 / val);
if (t > 0)
t >>= 1;

if (t > 1)
st->us->max_speed_hz = ADE7758_SPI_SLOW;
else
st->us->max_speed_hz = ADE7758_SPI_FAST;
switch (val) {
case 26040:
t = 0;
break;
case 13020:
t = 1;
break;
case 6510:
t = 2;
break;
case 3255:
t = 3;
break;
default:
ret = -EINVAL;
goto out;
}

ret = ade7758_spi_read_reg_8(dev,
ADE7758_WAVMODE,
Expand Down Expand Up @@ -671,7 +679,7 @@ static IIO_DEV_ATTR_WAVEFORM_TYPE(S_IWUSR | S_IRUGO,

static IIO_DEV_ATTR_RESET(ade7758_write_reset);

static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("26000 13000 65000 33000");
static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("26040 13020 6510 3255");

static struct attribute *ade7758_attributes[] = {
&iio_dev_attr_temp_raw.dev_attr.attr,
Expand Down

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