ASoC: audio-graph-card: add widgets and routing for external amplifier support
It's very common that audio card has a machine level amplifier which is controlled by GPIO. The patch adds DAPM widgets and routing support into audio-graph-card driver, and creates an output driver widget with event to control the amplifier via GPIO. Signed-off-by:Shawn Guo <shawn.guo@linaro.org> Acked-by:
Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by:
Mark Brown <broonie@kernel.org>
parent
a0c683d7
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