linux-kernel - [PATCH 4.9 10/93] device property: Make dev

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Date:   Wed,  9 Aug 2017 11:13:03 -0700
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Chris Metcalf <cmetcalf@...lanox.com>
Subject: [PATCH 4.9 10/93] device property: Make dev_fwnode() public

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Sakari Ailus <sakari.ailus@...ux.intel.com>

commit e44bb0cbdc88686c21e2175a990b40bf6db5d005 upstream.

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@...ux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@...ux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Cc: Chris Metcalf <cmetcalf@...lanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/base/property.c  |    3 ++-
 include/linux/property.h |    2 ++
 2 files changed, 4 insertions(+), 1 deletion(-)

--- a/drivers/base/property.c
+++ b/drivers/base/property.c
@@ -182,11 +182,12 @@ static int pset_prop_read_string(struct
 	return 0;
 }
 
-static inline struct fwnode_handle *dev_fwnode(struct device *dev)
+struct fwnode_handle *dev_fwnode(struct device *dev)
 {
 	return IS_ENABLED(CONFIG_OF) && dev->of_node ?
 		&dev->of_node->fwnode : dev->fwnode;
 }
+EXPORT_SYMBOL_GPL(dev_fwnode);
 
 /**
  * device_property_present - check if a property of a device is present
--- a/include/linux/property.h
+++ b/include/linux/property.h
@@ -33,6 +33,8 @@ enum dev_dma_attr {
 	DEV_DMA_COHERENT,
 };
 
+struct fwnode_handle *dev_fwnode(struct device *dev);
+
 bool device_property_present(struct device *dev, const char *propname);
 int device_property_read_u8_array(struct device *dev, const char *propname,
 				  u8 *val, size_t nval);