The patch
ASoC: sun4i-codec: Add support for A31 board level audio routing
has been applied to the asoc tree at
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying to this mail.
Thanks, Mark
From 300a18d13f7eaec789e79dc45bce026e098b45da Mon Sep 17 00:00:00 2001
From: Chen-Yu Tsai wens@csie.org Date: Thu, 3 Nov 2016 15:55:53 +0800 Subject: [PATCH] ASoC: sun4i-codec: Add support for A31 board level audio routing
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 --- .../devicetree/bindings/sound/sun4i-codec.txt | 33 ++++++++++++++++++++++ sound/soc/sunxi/sun4i-codec.c | 21 ++++++++++++-- 2 files changed, 52 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/sound/sun4i-codec.txt b/Documentation/devicetree/bindings/sound/sun4i-codec.txt index bf480e9683a3..d91a95377f49 100644 --- a/Documentation/devicetree/bindings/sound/sun4i-codec.txt +++ b/Documentation/devicetree/bindings/sound/sun4i-codec.txt @@ -22,6 +22,31 @@ Optional properties: Required properties for the following compatibles: - "allwinner,sun6i-a31-codec" - resets: phandle to the reset control for this device +- allwinner,audio-routing: A list of the connections between audio components. + Each entry is a pair of strings, the first being the + connection's sink, the second being the connection's + source. Valid names include: + + Audio pins on the SoC: + "HP" + "HPCOM" + "LINEIN" + "LINEOUT" + "MIC1" + "MIC2" + "MIC3" + + Microphone biases from the SoC: + "HBIAS" + "MBIAS" + + Board connectors: + "Headphone" + "Headset Mic" + "Line In" + "Line Out" + "Mic" + "Speaker"
Example: codec: codec@01c22c00 { @@ -45,4 +70,12 @@ codec: codec@01c22c00 { resets = <&ccu RST_APB1_CODEC>; dmas = <&dma 15>, <&dma 15>; dma-names = "rx", "tx"; + allwinner,audio-routing = + "Headphone", "HP", + "Speaker", "LINEOUT", + "LINEIN", "Line In", + "MIC1", "MBIAS", + "MIC1", "Mic", + "MIC2", "HBIAS", + "MIC2", "Headset Mic"; }; diff --git a/sound/soc/sunxi/sun4i-codec.c b/sound/soc/sunxi/sun4i-codec.c index f55718fe7c5b..1934db29b2b5 100644 --- a/sound/soc/sunxi/sun4i-codec.c +++ b/sound/soc/sunxi/sun4i-codec.c @@ -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; };