Commit 39f3b32e authored by Jonathan Cameron's avatar Jonathan Cameron Committed by Greg Kroah-Hartman
Browse files

staging:iio:dds:ad9832: allocate chip state with iio_dev and use iio_priv to access. 



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 7074e1d4

drivers/staging/iio/dds/ad9832.c

+32 −37
Original line number Diff line number Diff line
@@ -77,7 +77,7 @@ static ssize_t ad9832_write(struct device *dev, 
		size_t len)

{

	struct iio_dev *dev_info = dev_get_drvdata(dev);

	struct ad9832_state *st = dev_info->dev_data;

	struct ad9832_state *st = iio_priv(dev_info);

	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);

	int ret;

	long val;
@@ -203,7 +203,9 @@ static const struct iio_info ad9832_info = { 
static int __devinit ad9832_probe(struct spi_device *spi)

{

	struct ad9832_platform_data *pdata = spi->dev.platform_data;

	struct iio_dev *indio_dev;

	struct ad9832_state *st;

	struct regulator *reg;

	int ret;



	if (!pdata) {
@@ -211,35 +213,28 @@ static int __devinit ad9832_probe(struct spi_device *spi) 
		return -ENODEV;

	}



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

	if (st == NULL) {

		ret = -ENOMEM;

		goto error_ret;

	}



	st->reg = regulator_get(&spi->dev, "vcc");

	if (!IS_ERR(st->reg)) {

		ret = regulator_enable(st->reg);

	reg = regulator_get(&spi->dev, "vcc");

	if (!IS_ERR(reg)) {

		ret = regulator_enable(reg);

		if (ret)

			goto error_put_reg;

	}



	st->mclk = pdata->mclk;



	spi_set_drvdata(spi, st);

	st->spi = spi;



	st->indio_dev = iio_allocate_device(0);

	if (st->indio_dev == NULL) {

	indio_dev = iio_allocate_device(sizeof(*st));

	if (indio_dev == NULL) {

		ret = -ENOMEM;

		goto error_disable_reg;

	}

	spi_set_drvdata(spi, indio_dev);

	st = iio_priv(indio_dev);

	st->reg = reg;

	st->mclk = pdata->mclk;

	st->spi = spi;



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

	st->indio_dev->name = spi_get_device_id(spi)->name;

	st->indio_dev->info = &ad9832_info;

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

	st->indio_dev->modes = INDIO_DIRECT_MODE;

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

	indio_dev->name = spi_get_device_id(spi)->name;

	indio_dev->info = &ad9832_info;

	indio_dev->modes = INDIO_DIRECT_MODE;



	/* Setup default messages */
@@ -310,35 +305,35 @@ static int __devinit ad9832_probe(struct spi_device *spi) 
	if (ret)

		goto error_free_device;



	ret = iio_device_register(st->indio_dev);

	ret = iio_device_register(indio_dev);

	if (ret)

		goto error_free_device;



	return 0;



error_free_device:

	iio_free_device(st->indio_dev);

	iio_free_device(indio_dev);

error_disable_reg:

	if (!IS_ERR(st->reg))

		regulator_disable(st->reg);

	if (!IS_ERR(reg))

		regulator_disable(reg);

error_put_reg:

	if (!IS_ERR(st->reg))

		regulator_put(st->reg);

	kfree(st);

error_ret:

	if (!IS_ERR(reg))

		regulator_put(reg);



	return ret;

}



static int __devexit ad9832_remove(struct spi_device *spi)

{

	struct ad9832_state *st = spi_get_drvdata(spi);



	iio_device_unregister(st->indio_dev);

	if (!IS_ERR(st->reg)) {

		regulator_disable(st->reg);

		regulator_put(st->reg);

	struct iio_dev *indio_dev = spi_get_drvdata(spi);

	struct ad9832_state *st = iio_priv(indio_dev);

	struct regulator *reg = st->reg;



	iio_device_unregister(indio_dev);

	if (!IS_ERR(reg)) {

		regulator_disable(reg);

		regulator_put(reg);

	}

	kfree(st);

	return 0;

}

drivers/staging/iio/dds/ad9832.h

+0 −2
Original line number Diff line number Diff line
@@ -57,7 +57,6 @@ 


/**

 * struct ad9832_state - driver instance specific data

 * @indio_dev:		the industrial I/O device

 * @spi:		spi_device

 * @reg:		supply regulator

 * @mclk:		external master clock
@@ -76,7 +75,6 @@ 
 */



struct ad9832_state {

	struct iio_dev			*indio_dev;

	struct spi_device		*spi;

	struct regulator		*reg;

	unsigned long			mclk;