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Commit aa767cfb authored by Arnd Bergmann's avatar Arnd Bergmann Committed by Rob Herring
Browse files

of: provide inline helper for of_find_device_by_node 



The ipmmu-vmsa driver fails in compile-testing on non-OF platforms:

drivers/iommu/ipmmu-vmsa.o: In function `ipmmu_of_xlate':
ipmmu-vmsa.c:(.text+0x740): undefined reference to `of_find_device_by_node'

It would be reasonable to assume that this interface works but
returns failure on non-OF builds, like it does on machines that
have been booted in another way, so this adds another inline
function helper.

Fixes: 7b2d5961 ("iommu/ipmmu-vmsa: Replace local utlb code with fwspec ids")
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent 2bd6bf03

include/linux/of_platform.h

+7 −0
Original line number Diff line number Diff line
@@ -57,7 +57,14 @@ extern const struct of_device_id of_default_bus_match_table[]; 
extern struct platform_device *of_device_alloc(struct device_node *np,

					 const char *bus_id,

					 struct device *parent);

#ifdef CONFIG_OF

extern struct platform_device *of_find_device_by_node(struct device_node *np);

#else

static inline struct platform_device *of_find_device_by_node(struct device_node *np)

{

	return NULL;

}

#endif



/* Platform devices and busses creation */

extern struct platform_device *of_platform_device_create(struct device_node *np,