[RFC][PATCH 3/3] spi: indicate in the docs that per-transfer bpw setting is not supported

[Paul Fertser]

Currently it's not implemented by any driver so add a note to the
documentation.

Signed-off-by: Paul Fertser <fercerpav at gmail.com>
---
 include/spi/spi.h |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/include/spi/spi.h b/include/spi/spi.h
index 948e050..9d01d06 100644
--- a/include/spi/spi.h
+++ b/include/spi/spi.h
@@ -37,7 +37,8 @@ struct spi_board_info {
  *	powers of two bytes (e.g. 20 bit samples use 32 bits).
  *	This may be changed by the device's driver, or left at the
  *	default (0) indicating protocol words are eight bit bytes.
- *	The spi_transfer.bits_per_word can override this for each transfer.
+ *	The spi_transfer.bits_per_word can override this for each transfer
+ *	(FIXME: not currently implemented).
  * @irq: Negative, or the number passed to request_irq() to receive
  *	interrupts from this device.
  * @controller_state: Controller's runtime state
-- 
1.5.2.2