diff options
author | Raffaele Recalcati <raffaele.recalcati@bticino.it> | 2010-07-06 10:39:04 +0200 |
---|---|---|
committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-07-06 23:54:07 +0900 |
commit | d9823ed9fa3126097dfd2bbce6dc33957c1be728 (patch) | |
tree | a929aead29f43232b408b182ce5a5e5e4c8654a0 /firmware | |
parent | ec6375533748806a1a49dad7ce124cc02886854a (diff) | |
download | linux-d9823ed9fa3126097dfd2bbce6dc33957c1be728.tar.gz linux-d9823ed9fa3126097dfd2bbce6dc33957c1be728.tar.bz2 linux-d9823ed9fa3126097dfd2bbce6dc33957c1be728.zip |
ASoC: DaVinci: More accurate continuous serial clock for McBSP (I2S)
i2s_accurate_sck switch can be used to have a better approximate
sampling frequency.
The clock is an externally visible bit clock and it is named
i2s continuous serial clock (I2S_SCK).
The trade off is between more accurate clock (fast clock)
and less accurate clock (slow clock).
The waveform will be not symmetric.
Probably it is possible to get a better algorithm for calculating
the divider, trying to keep a slower clock as possible.
This patch has been developed against the
http://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-davinci.git
git tree and has been tested on bmx board (similar to dm365 evm, but using
uda1345 as external audio codec).
Signed-off-by: Raffaele Recalcati <raffaele.recalcati@bticino.it>
Signed-off-by: Davide Bonfanti <davide.bonfanti@bticino.it>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Acked-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'firmware')
0 files changed, 0 insertions, 0 deletions