From: Michael Hennerich <michael.hennerich@xxxxxxxxxx>
Fix list of available sample frequencies.
Fix ade7758_write_frequency().
Signed-off-by: Michael Hennerich <michael.hennerich@xxxxxxxxxx>
---
drivers/staging/iio/meter/ade7758_core.c | 28 ++++++++++++++++++----------
1 files changed, 18 insertions(+), 10 deletions(-)
diff --git a/drivers/staging/iio/meter/ade7758_core.c b/drivers/staging/iio/meter/ade7758_core.c
index 971b247..b2d7345 100644
--- a/drivers/staging/iio/meter/ade7758_core.c
+++ b/drivers/staging/iio/meter/ade7758_core.c
@@ -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;
@@ -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,
@@ -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,
--
1.6.0.2
--
To unsubscribe from this list: send the line "unsubscribe linux-iio" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
