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Differential D8960

jz4780 AIC allow selecting internal/external codec at runtime
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Authored by jmcneill on Dec 29 2016, 12:43 AM.
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kan
br
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MIPS
Commits
rS310776: The JZ4780 I2S can feed either the internal audio codec or the HDMI
Summary

The JZ4780 I2S can feed either the internal audio codec or the HDMI TX, but not both at the same time. With this patch:

  • Add a dev.pcm.0.internal_codec sysctl node for selecting between internal and external codec
  • Changes playback sample rate from 96kHz to 48kHz for HDMI compatibility
  • Enable i2s clock on codec access

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rS FreeBSD src repository - subversion
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jmcneill updated this revision to Diff 23363.Dec 29 2016, 12:43 AM
jmcneill retitled this revision from to jz4780 AIC allow selecting internal/external codec at runtime.
jmcneill updated this object.
jmcneill edited the test plan for this revision. (Show Details)
jmcneill added reviewers: br, kan, MIPS.
jmcneill set the repository for this revision to rS FreeBSD src repository - subversion.
jmcneill added a project: MIPS.
Herald added a subscriber: imp. · View Herald TranscriptDec 29 2016, 12:43 AM
br accepted this revision.Dec 29 2016, 1:12 PM
br edited edge metadata.

looks good and useful. thanks!

This revision is now accepted and ready to land.Dec 29 2016, 1:12 PM
Closed by commit rS310776: The JZ4780 I2S can feed either the internal audio codec or the HDMI (authored by jmcneill). · Explain WhyDec 29 2016, 2:00 PM
This revision was automatically updated to reflect the committed changes.

Revision Contents
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head/
sys/
mips/
ingenic/
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Diff 23402

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head/sys/mips/ingenic/jz4780_aic.c

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head/sys/mips/ingenic/jz4780_codec.h

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head/sys/mips/ingenic/jz4780_codec.c

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