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iio: core: Convert to use firmware node handle instead of OF node

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Switch the IIO core to use firmware node handle instead of OF node.
This will allow to get label from firmware on non-OF systems.

Note, this doesn't change of_iio_*() APIs for now.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220413180202.19220-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Andy Shevchenko 2022-04-13 21:02:02 +03:00 committed by Jonathan Cameron
parent f5c822c060
commit 813665564b
1 changed files with 9 additions and 7 deletions
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16
drivers/iio/industrialio-core.c
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@ -1907,20 +1907,22 @@ static const struct iio_buffer_setup_ops noop_ring_setup_ops;
int __iio_device_register(struct iio_dev *indio_dev, struct module *this_mod)
{
struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev);
const char *label;
struct fwnode_handle *fwnode;
int ret;
if (!indio_dev->info)
return -EINVAL;
iio_dev_opaque->driver_module = this_mod;
/* If the calling driver did not initialize of_node, do it here */
if (!indio_dev->dev.of_node && indio_dev->dev.parent)
indio_dev->dev.of_node = indio_dev->dev.parent->of_node;
label = of_get_property(indio_dev->dev.of_node, "label", NULL);
if (label)
indio_dev->label = label;
/* If the calling driver did not initialize firmware node, do it here */
if (dev_fwnode(&indio_dev->dev))
fwnode = dev_fwnode(&indio_dev->dev);
else
fwnode = dev_fwnode(indio_dev->dev.parent);
device_set_node(&indio_dev->dev, fwnode);
fwnode_property_read_string(fwnode, "label", &indio_dev->label);
ret = iio_check_unique_scan_index(indio_dev);
if (ret < 0)