mtd: nand: fsmc: update of OF support

Add nand bank selection and timings to the device tree bindings.

Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
[Added some documentation]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
diff --git a/include/linux/mtd/fsmc.h b/include/linux/mtd/fsmc.h
index d6ed61e..c8be32e 100644
--- a/include/linux/mtd/fsmc.h
+++ b/include/linux/mtd/fsmc.h
@@ -137,6 +137,7 @@
 
 /**
  * fsmc_nand_platform_data - platform specific NAND controller config
+ * @nand_timings: timing setup for the physical NAND interface
  * @partitions: partition table for the platform, use a default fallback
  * if this is NULL
  * @nr_partitions: the number of partitions in the previous entry