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Commit 9308bc9a authored by Michael Hennerich's avatar Michael Hennerich Committed by Greg Kroah-Hartman
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staging:iio:meter:ade7758: Fix list and set of available sample frequencies. 



Fix list of available sample frequencies.
Fix ade7758_write_frequency().

Signed-off-by: default avatarMichael Hennerich <michael.hennerich@analog.com>
Acked-by: default avatarJonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent fb7f6cca

drivers/staging/iio/meter/ade7758_core.c

+18 −10
Original line number Diff line number Diff line
@@ -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,