struct iio_dev *indio_dev;
struct iio_dummy_state *st;
struct iio_sw_device *swd;
+ struct device *parent = NULL;
+
+ /*
+ * With hardware: Set the parent device.
+ * parent = &spi->dev;
+ * parent = &client->dev;
+ */
swd = kzalloc(sizeof(*swd), GFP_KERNEL);
if (!swd) {
* It also has a region (accessed by iio_priv()
* for chip specific state information.
*/
- indio_dev = iio_device_alloc(sizeof(*st));
+ indio_dev = iio_device_alloc(parent, sizeof(*st));
if (!indio_dev) {
ret = -ENOMEM;
goto error_ret;
mutex_init(&st->lock);
iio_dummy_init_device(indio_dev);
- /*
- * With hardware: Set the parent device.
- * indio_dev->dev.parent = &spi->dev;
- * indio_dev->dev.parent = &client->dev;
- */
/*
* Make the iio_dev struct available to remove function.
* iio_device_alloc() - allocate an iio_dev from a driver
* @sizeof_priv: Space to allocate for private structure.
**/
-struct iio_dev *iio_device_alloc(int sizeof_priv)
+struct iio_dev *iio_device_alloc(struct device *parent, int sizeof_priv)
{
struct iio_dev *dev;
size_t alloc_size;
if (!dev)
return NULL;
+ dev->dev.parent = parent;
dev->dev.groups = dev->groups;
dev->dev.type = &iio_device_type;
dev->dev.bus = &iio_bus_type;
/**
* devm_iio_device_alloc - Resource-managed iio_device_alloc()
- * @dev: Device to allocate iio_dev for
+ * @parent: Device to allocate iio_dev for, and parent for this IIO device
* @sizeof_priv: Space to allocate for private structure.
*
* Managed iio_device_alloc. iio_dev allocated with this function is
* RETURNS:
* Pointer to allocated iio_dev on success, NULL on failure.
*/
-struct iio_dev *devm_iio_device_alloc(struct device *dev, int sizeof_priv)
+struct iio_dev *devm_iio_device_alloc(struct device *parent, int sizeof_priv)
{
struct iio_dev **ptr, *iio_dev;
if (!ptr)
return NULL;
- iio_dev = iio_device_alloc(sizeof_priv);
+ iio_dev = iio_device_alloc(parent, sizeof_priv);
if (iio_dev) {
*ptr = iio_dev;
- devres_add(dev, ptr);
+ devres_add(parent, ptr);
} else {
devres_free(ptr);
}
toshiba_accelerometer_available(dev);
if (dev->accelerometer_supported) {
- dev->indio_dev = iio_device_alloc(sizeof(*dev));
+ dev->indio_dev = iio_device_alloc(&acpi_dev->dev, sizeof(*dev));
if (!dev->indio_dev) {
pr_err("Unable to allocate iio device\n");
goto iio_error;
dev->indio_dev->info = &toshiba_iio_accel_info;
dev->indio_dev->name = "Toshiba accelerometer";
- dev->indio_dev->dev.parent = &acpi_dev->dev;
dev->indio_dev->modes = INDIO_DIRECT_MODE;
dev->indio_dev->channels = toshiba_iio_accel_channels;
dev->indio_dev->num_channels =
First allocate one using:
-struct iio_dev *indio_dev = iio_device_alloc(sizeof(struct chip_state));
+struct iio_dev *indio_dev = iio_device_alloc(parent, sizeof(struct chip_state));
where chip_state is a structure of local state data for this instance of
the chip.
Then fill in the following:
-- indio_dev->dev.parent
- Struct device associated with the underlying hardware.
- indio_dev->name
Name of the device being driven - made available as the name
attribute in sysfs.
/* Can we make this smaller? */
#define IIO_ALIGN L1_CACHE_BYTES
-struct iio_dev *iio_device_alloc(int sizeof_priv);
+struct iio_dev *iio_device_alloc(struct device *parent, int sizeof_priv);
static inline void *iio_priv(const struct iio_dev *indio_dev)
{
}
void iio_device_free(struct iio_dev *indio_dev);
-struct iio_dev *devm_iio_device_alloc(struct device *dev, int sizeof_priv);
+struct iio_dev *devm_iio_device_alloc(struct device *parent, int sizeof_priv);
struct iio_trigger *devm_iio_trigger_alloc(struct device *dev,
const char *fmt, ...);
/**