of_mtd: Add no-op stubs to support CONFIG_OF=n

Just like the rest of the subsystems, let's add the required no-op
functions to implement stubs when CONFIG_OF=n.

This prevents MTD drivers from having ugly ifdefs in their code,
and instead hide the ifdef monster in the header closet (far away
from people's sight).

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>

diff --git a/include/linux/of_mtd.h b/include/linux/of_mtd.h
index ed7f267e63897794773ee201e32ad01d89d7bd7d..6f10e938ff7e74d4db19b991a55193f5073946e7 100644 (file)
--- a/include/linux/of_mtd.h
+++ b/include/linux/of_mtd.h
@@ -10,10 +10,29 @@
 #define __LINUX_OF_NET_H
 
 #ifdef CONFIG_OF_MTD
+
 #include <linux/of.h>
 int of_get_nand_ecc_mode(struct device_node *np);
 int of_get_nand_bus_width(struct device_node *np);
 bool of_get_nand_on_flash_bbt(struct device_node *np);
-#endif
+
+#else /* CONFIG_OF_MTD */
+
+static inline int of_get_nand_ecc_mode(struct device_node *np)
+{
+       return -ENOSYS;
+}
+
+static inline int of_get_nand_bus_width(struct device_node *np)
+{
+       return -ENOSYS;
+}
+
+static inline bool of_get_nand_on_flash_bbt(struct device_node *np)
+{
+       return false;
+}
+
+#endif /* CONFIG_OF_MTD */
 
 #endif /* __LINUX_OF_MTD_H */