of: adapt of_find_i2c_driver() to be usable by SPI also
SPI has a similar problem as I2C in that it needs to determine an
appropriate modalias value for each device node. This patch adapts
the of_i2c of_find_i2c_driver() function to be usable by of_spi also.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
diff --git a/include/linux/of.h b/include/linux/of.h
index 59a61bd..79886ad 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -70,5 +70,6 @@
extern int of_n_size_cells(struct device_node *np);
extern const struct of_device_id *of_match_node(
const struct of_device_id *matches, const struct device_node *node);
+extern int of_modalias_node(struct device_node *node, char *modalias, int len);
#endif /* _LINUX_OF_H */