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Commit fb565f13 authored by Jonathan Cameron's avatar Jonathan Cameron Committed by Greg Kroah-Hartman
Browse files

staging:iio:dds:ad9910: allocate chip state with iio_dev 



Signed-off-by: default avatarJonathan Cameron <jic23@cam.ac.uk>
Acked-by: default avatarMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent a2829911

drivers/staging/iio/dds/ad9910.c

+12 −24
Original line number Original line Diff line number Diff line
@@ -110,7 +110,6 @@ struct ad9910_config { 




struct ad9910_state {

struct ad9910_state {

	struct mutex lock;

	struct mutex lock;

	struct iio_dev *idev;

	struct spi_device *sdev;

	struct spi_device *sdev;

};

};
@@ -124,7 +123,7 @@ static ssize_t ad9910_set_parameter(struct device *dev, 
	int ret;

	int ret;

	struct ad9910_config *config = (struct ad9910_config *)buf;

	struct ad9910_config *config = (struct ad9910_config *)buf;

	struct iio_dev *idev = dev_get_drvdata(dev);

	struct iio_dev *idev = dev_get_drvdata(dev);

	struct ad9910_state *st = idev->dev_data;

	struct ad9910_state *st = iio_priv(idev);





	xfer.len = 5;

	xfer.len = 5;

	xfer.tx_buf = &config->auxdac[0];

	xfer.tx_buf = &config->auxdac[0];
@@ -365,30 +364,24 @@ static const struct iio_info ad9910_info = { 
static int __devinit ad9910_probe(struct spi_device *spi)

static int __devinit ad9910_probe(struct spi_device *spi)

{

{

	struct ad9910_state *st;

	struct ad9910_state *st;

	struct iio_dev *idev;

	int ret = 0;

	int ret = 0;





	st = kzalloc(sizeof(*st), GFP_KERNEL);

	idev = iio_allocate_device(sizeof(*st));

	if (st == NULL) {

	if (idev == NULL) {

		ret = -ENOMEM;

		ret = -ENOMEM;

		goto error_ret;

		goto error_ret;

	}

	}

	spi_set_drvdata(spi, st);

	spi_set_drvdata(spi, idev);



	st = iio_priv(idev);

	mutex_init(&st->lock);

	mutex_init(&st->lock);

	st->sdev = spi;

	st->sdev = spi;





	st->idev = iio_allocate_device(0);

	idev->dev.parent = &spi->dev;

	if (st->idev == NULL) {

	idev->info = &ad9910_info;

		ret = -ENOMEM;

	idev->modes = INDIO_DIRECT_MODE;

		goto error_free_st;

	}

	st->idev->dev.parent = &spi->dev;



	st->idev->info = &ad9910_info;

	st->idev->dev_data = (void *)(st);

	st->idev->modes = INDIO_DIRECT_MODE;





	ret = iio_device_register(st->idev);

	ret = iio_device_register(idev);

	if (ret)

	if (ret)

		goto error_free_dev;

		goto error_free_dev;

	spi->max_speed_hz = 2000000;

	spi->max_speed_hz = 2000000;
@@ -399,19 +392,14 @@ static int __devinit ad9910_probe(struct spi_device *spi) 
	return 0;

	return 0;





error_free_dev:

error_free_dev:

	iio_free_device(st->idev);

	iio_free_device(idev);

error_free_st:

	kfree(st);

error_ret:

error_ret:

	return ret;

	return ret;

}

}





static int __devexit ad9910_remove(struct spi_device *spi)

static int __devexit ad9910_remove(struct spi_device *spi)

{

{

	struct ad9910_state *st = spi_get_drvdata(spi);

	iio_device_unregister(spi_get_drvdata(spi));



	iio_device_unregister(st->idev);

	kfree(st);





	return 0;

	return 0;

}

}