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staging: iio: ad2s1200: Replace platform data with dt bindings

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Remove usage of platform data, and replace it with device tree
facilities.

Signed-off-by: David Veenstra <davidjulianveenstra@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
David Veenstra 2018-05-18 20:22:32 +02:00 committed by Jonathan Cameron
parent 5af93e6aa7
commit 1946980b8f
1 changed files with 15 additions and 17 deletions
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32
drivers/staging/iio/resolver/ad2s1200.c
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@ -25,9 +25,6 @@
#define DRV_NAME "ad2s1200"
/* input pin sample and rdvel is controlled by driver */
#define AD2S1200_PN 2
/* input clock on serial interface */
#define AD2S1200_HZ 8192000
/* clock period in nano second */
@ -111,20 +108,9 @@ static const struct iio_info ad2s1200_info = {
static int ad2s1200_probe(struct spi_device *spi)
{
unsigned short *pins = spi->dev.platform_data;
struct ad2s1200_state *st;
struct iio_dev *indio_dev;
int pn, ret;
for (pn = 0; pn < AD2S1200_PN; pn++) {
ret = devm_gpio_request_one(&spi->dev, pins[pn], GPIOF_DIR_OUT,
DRV_NAME);
if (ret) {
dev_err(&spi->dev, "request gpio pin %d failed\n",
pins[pn]);
return ret;
}
}
int ret;
indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
if (!indio_dev)
@ -134,8 +120,20 @@ static int ad2s1200_probe(struct spi_device *spi)
st = iio_priv(indio_dev);
mutex_init(&st->lock);
st->sdev = spi;
st->sample = gpio_to_desc(pins[0]);
st->rdvel = gpio_to_desc(pins[1]);
st->sample = devm_gpiod_get(&spi->dev, "adi,sample", GPIOD_OUT_LOW);
if (IS_ERR(st->sample)) {
dev_err(&spi->dev, "Failed to claim SAMPLE gpio: err=%ld\n",
PTR_ERR(st->sample));
return PTR_ERR(st->sample);
}
st->rdvel = devm_gpiod_get(&spi->dev, "adi,rdvel", GPIOD_OUT_LOW);
if (IS_ERR(st->rdvel)) {
dev_err(&spi->dev, "Failed to claim RDVEL gpio: err=%ld\n",
PTR_ERR(st->rdvel));
return PTR_ERR(st->rdvel);
}
indio_dev->dev.parent = &spi->dev;
indio_dev->info = &ad2s1200_info;