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device property: Make dev_fwnode() public
The function to obtain a fwnode related to a struct device is useful for drivers that use the fwnode property API: it allows not being aware of the underlying firmware implementation. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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2 changed files with 4 additions and 1 deletions
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@ -183,11 +183,12 @@ static int pset_prop_read_string(struct property_set *pset,
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return 0;
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}
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static inline struct fwnode_handle *dev_fwnode(struct device *dev)
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struct fwnode_handle *dev_fwnode(struct device *dev)
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{
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return IS_ENABLED(CONFIG_OF) && dev->of_node ?
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&dev->of_node->fwnode : dev->fwnode;
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}
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EXPORT_SYMBOL_GPL(dev_fwnode);
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/**
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* device_property_present - check if a property of a device is present
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@ -33,6 +33,8 @@ enum dev_dma_attr {
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DEV_DMA_COHERENT,
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};
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struct fwnode_handle *dev_fwnode(struct device *dev);
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bool device_property_present(struct device *dev, const char *propname);
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int device_property_read_u8_array(struct device *dev, const char *propname,
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u8 *val, size_t nval);
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