[alsa-devel] [PATCH 0/2] ASoC: audio-graph-card: support external amplifier with DAPM widget

[Shawn Guo]

From: Shawn Guo <shawn.guo at linaro.org>

It's basically the result of discussion around how external amplifier
controlled by GPIO should be supported by audio card, that uses generic
machine driver like audio-graph-card.

The patch series updates audio-graph-card bindings and driver to support
DAPM widget and audio routing, and then based on that, creates an output
driver widget with event to control the amplifier via GPIO.

[1] https://www.spinics.net/lists/arm-kernel/msg589717.html

Shawn Guo (2):
  ASoC: audio-graph-card: update bindings for amplifier support
  ASoC: audio-graph-card: add widgets and routing for external amplifier
    support

 .../devicetree/bindings/sound/audio-graph-card.txt |  5 +++
 sound/soc/generic/audio-graph-card.c               | 48 +++++++++++++++++++++-
 2 files changed, 52 insertions(+), 1 deletion(-)

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1.9.1