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author | Clemens Ladisch <clemens@ladisch.de> | 2008-08-29 13:08:34 +0200 |
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committer | Takashi Iwai <tiwai@suse.de> | 2008-08-29 14:15:19 +0200 |
commit | df91bc23dcb052ff2da71b3482bf3c5fbf4b8a53 (patch) | |
tree | e74972c0522e55da1b027b60c4894c853a96a5ba /sound/Kconfig | |
parent | 93a1a5eb70be5cc14990b97ef2460212e32658dc (diff) |
ALSA: oxygen: fix distorted output on AK4396-based cards
When changing the sample rate, the CMI8788's master clock output becomes
unstable for a short time. The AK4396 needs the master clock to do SPI
writes, so writing to an AK4396 control register directly after a sample
rate change will garble the value. In our case, this leads to the DACs
being misconfigured to I2S sample format, which results in a wrong
output level and horrible distortions on samples louder than -6 dB.
To fix this, we need to wait until the new master clock signal has
become stable before doing SPI writes.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/Kconfig')
0 files changed, 0 insertions, 0 deletions