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| author | Takashi Iwai <tiwai@suse.de> | 2011-08-15 12:47:19 +0200 |
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| committer | Takashi Iwai <tiwai@suse.de> | 2011-08-15 12:47:19 +0200 |
| commit | 2d9f8a6e73ef2ec8ecaa24ca98e7010d6edd089f (patch) | |
| tree | 9ea035b696137b345c69532a318f55502f530558 /Documentation/blackfin/bfin-spi-notes.txt | |
| parent | ALSA: hda - Add tracepoint for unsolicited events (diff) | |
| parent | ALSA: ac97: Add HP Compaq dc5100 SFF(PT003AW) to Headphone Jack Sense whitelist (diff) | |
| download | linux-2d9f8a6e73ef2ec8ecaa24ca98e7010d6edd089f.tar.xz linux-2d9f8a6e73ef2ec8ecaa24ca98e7010d6edd089f.zip | |
Merge branch 'fix/hda' into topic/hda
Diffstat (limited to 'Documentation/blackfin/bfin-spi-notes.txt')
| -rw-r--r-- | Documentation/blackfin/bfin-spi-notes.txt | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/blackfin/bfin-spi-notes.txt b/Documentation/blackfin/bfin-spi-notes.txt index 556fa877f2e8..eae6eaf2a09d 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. |