diff options
author | Jonathan Cameron <jic23@cam.ac.uk> | 2011-06-27 12:07:40 (GMT) |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-06-28 21:39:46 (GMT) |
commit | a28299114b2035ef4cf356c590ab946b73a9268e (patch) | |
tree | c92fb811e2501152367bdb1f037be8cdb8c42406 /drivers/staging/iio/dds | |
parent | 7be94372cac8dcb23d6ed06960b75a1f63970d39 (diff) | |
download | linux-fsl-qoriq-a28299114b2035ef4cf356c590ab946b73a9268e.tar.xz |
staging:iio:dds:ad9810: allocate chip state with iio_dev and use iio_priv for access.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/iio/dds')
-rw-r--r-- | drivers/staging/iio/dds/ad9852.c | 38 |
1 files changed, 14 insertions, 24 deletions
diff --git a/drivers/staging/iio/dds/ad9852.c b/drivers/staging/iio/dds/ad9852.c index 08020f9..0184585 100644 --- a/drivers/staging/iio/dds/ad9852.c +++ b/drivers/staging/iio/dds/ad9852.c @@ -58,7 +58,6 @@ struct ad9852_config { struct ad9852_state { struct mutex lock; - struct iio_dev *idev; struct spi_device *sdev; }; @@ -72,7 +71,7 @@ static ssize_t ad9852_set_parameter(struct device *dev, int ret; struct ad9852_config *config = (struct ad9852_config *)buf; struct iio_dev *idev = dev_get_drvdata(dev); - struct ad9852_state *st = idev->dev_data; + struct ad9852_state *st = iio_priv(idev); xfer.len = 3; xfer.tx_buf = &config->phajst0[0]; @@ -230,30 +229,24 @@ static const struct iio_info ad9852_info = { static int __devinit ad9852_probe(struct spi_device *spi) { struct ad9852_state *st; + struct iio_dev *idev; int ret = 0; - st = kzalloc(sizeof(*st), GFP_KERNEL); - if (st == NULL) { + idev = iio_allocate_device(sizeof(*st)); + if (idev == NULL) { ret = -ENOMEM; goto error_ret; } - spi_set_drvdata(spi, st); - + st = iio_priv(idev); + spi_set_drvdata(spi, idev); mutex_init(&st->lock); st->sdev = spi; - st->idev = iio_allocate_device(0); - if (st->idev == NULL) { - ret = -ENOMEM; - goto error_free_st; - } - st->idev->dev.parent = &spi->dev; + idev->dev.parent = &spi->dev; + idev->info = &ad9852_info; + idev->modes = INDIO_DIRECT_MODE; - st->idev->info = &ad9852_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) goto error_free_dev; spi->max_speed_hz = 2000000; @@ -261,22 +254,19 @@ static int __devinit ad9852_probe(struct spi_device *spi) spi->bits_per_word = 8; spi_setup(spi); ad9852_init(st); + return 0; error_free_dev: - iio_free_device(st->idev); -error_free_st: - kfree(st); + iio_free_device(idev); + error_ret: return ret; } static int __devexit ad9852_remove(struct spi_device *spi) { - struct ad9852_state *st = spi_get_drvdata(spi); - - iio_device_unregister(st->idev); - kfree(st); + iio_device_unregister(spi_get_drvdata(spi)); return 0; } |