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The JZ4780 I2S can feed either the internal audio codec or the HDMI

Description

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

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

Reviewed by: br
Differential Revision: https://reviews.freebsd.org/D8960

Details

Committed
jmcneillDec 29 2016, 2:00 PM
Reviewer
br
Differential Revision
D8960: jz4780 AIC allow selecting internal/external codec at runtime
Parents
rS310775: Move llvm-objdump from CLANG_EXTRAS to installed by default
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