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ASoC: sun4i-codec: Add support for A31 board level audio routing

Forráskód böngészése 
The A31 SoC's codec has various inputs, outputs and microphone bias
supplies. These can be routed on the board in different ways, such as:

  - HPCOM may be connected to have the headphone DC coupled.

  - Microphones all use the MBIAS main microphone supply or one mic may
    use the HBIAS supply, which supports headset detection and buttons.

  - Line Out may be routed to an audio jack, or an onboard speaker amp
    with power controls.

Add support for specifying the audio routes in the device tree.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Chen-Yu Tsai
2016-11-03 15:55:53 +08:00
committed by Mark Brown
szülő ecd5cdb4fd
commit 300a18d13f
2 fájl változott, egészen pontosan 52 új sor hozzáadva és 2 régi sor törölve
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21
sound/soc/sunxi/sun4i-codec.c
Fájl megtekintése

@@ -1104,9 +1104,19 @@ static struct snd_soc_card *sun4i_codec_create_card(struct device *dev)
return card;
};
static const struct snd_soc_dapm_widget sun6i_codec_card_dapm_widgets[] = {
SND_SOC_DAPM_HP("Headphone", NULL),
SND_SOC_DAPM_LINE("Line In", NULL),
SND_SOC_DAPM_LINE("Line Out", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
SND_SOC_DAPM_MIC("Mic", NULL),
SND_SOC_DAPM_SPK("Speaker", sun4i_codec_spk_event),
};
static struct snd_soc_card *sun6i_codec_create_card(struct device *dev)
{
struct snd_soc_card *card;
int ret;
card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
if (!card)
@@ -1116,8 +1126,15 @@ static struct snd_soc_card *sun6i_codec_create_card(struct device *dev)
if (!card->dai_link)
return ERR_PTR(-ENOMEM);
card->dev = dev;
card->name = "A31 Audio Codec";
card->dev = dev;
card->name = "A31 Audio Codec";
card->dapm_widgets = sun6i_codec_card_dapm_widgets;
card->num_dapm_widgets = ARRAY_SIZE(sun6i_codec_card_dapm_widgets);
card->fully_routed = true;
ret = snd_soc_of_parse_audio_routing(card, "allwinner,audio-routing");
if (ret)
dev_warn(dev, "failed to parse audio-routing: %d\n", ret);
return card;
};