mtd: nand: document nand_chip.oob_poi

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>

diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 5f3fdd9..c7113a9 100644 (file)
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -431,7 +431,8 @@ struct nand_buffers {
  * @chip_delay:                [BOARDSPECIFIC] chip dependent delay for transferring
  *                     data from array to read regs (tR).
  * @state:             [INTERN] the current state of the NAND device
- * @oob_poi:           poison value buffer
+ * @oob_poi:           "poison value buffer," used for laying out OOB data
+ *                     before writing
  * @page_shift:                [INTERN] number of address bits in a page (column
  *                     address bits).
  * @phys_erase_shift:  [INTERN] number of address bits in a physical eraseblock