powerpc and sparc: Introduce dev_archdata node accessors

The name of the device_node field differ across the platforms, so we
have to implement inlined accessors. This is needed to avoid ugly
#ifdef in the generic code.

Signed-off-by: Anton Vorontsov <[e-mail]>
Acked-by: David S. Miller <[e-mail]>
Acked-by: Grant Likely <[e-mail]>
Signed-off-by: Paul Mackerras <[e-mail]>

arch/powerpc/include/asm/device.h

···
 	void			*dma_data;
 };
 
+static inline void dev_archdata_set_node(struct dev_archdata *ad,
+					 struct device_node *np)
+{
+	ad->of_node = np;
+}
+
+static inline struct device_node *
+dev_archdata_get_node(const struct dev_archdata *ad)
+{
+	return ad->of_node;
+}
+
 #endif /* _ASM_POWERPC_DEVICE_H */

arch/sparc/include/asm/device.h

···
 	int			numa_node;
 };
 
+static inline void dev_archdata_set_node(struct dev_archdata *ad,
+					 struct device_node *np)
+{
+	ad->prom_node = np;
+}
+
+static inline struct device_node *
+dev_archdata_get_node(const struct dev_archdata *ad)
+{
+	return ad->prom_node;
+}
+
 #endif /* _ASM_SPARC_DEVICE_H */