X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=Documentation%2Fblackfin%2Fbfin-spi-notes.txt;h=eae6eaf2a09dad1967e25ea39611bc2da8034784;hb=e62063d69911886a5a92c719d262a2a87e1e5b60;hp=556fa877f2e816a143113b880db1cf1c727285be;hpb=61f953cbaae26f930b8d937366270547e08c1290;p=~andy%2Flinux

diff --git a/Documentation/blackfin/bfin-spi-notes.txt b/Documentation/blackfin/bfin-spi-notes.txt
index 556fa877f2e..eae6eaf2a09 100644
--- a/Documentation/blackfin/bfin-spi-notes.txt
+++ b/Documentation/blackfin/bfin-spi-notes.txt
@@ -9,6 +9,8 @@ the entire SPI transfer. - And not just bits_per_word duration.
 In most cases you can utilize SPI MODE_3 instead of MODE_0 to work-around this
 behavior. If your SPI slave device in question requires SPI MODE_0 or MODE_2
 timing, you can utilize the GPIO controlled SPI Slave Select option instead.
+In this case, you should use GPIO based CS for all of your slaves and not just
+the ones using mode 0 or 2 in order to guarantee correct CS toggling behavior.
 
 You can even use the same pin whose peripheral role is a SSEL,
 but use it as a GPIO instead.