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ASoC: mediatek: Add second I2S on mt8173-rt5650 machine driver

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This patch adds second I2S connection to rt5650 codec for capture path on
mt8173-rt5650 machine driver.

Signed-off-by: PC Liao <pc.liao@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
PC Liao 2016-04-21 19:38:14 +08:00 committed by Mark Brown
parent f55532a0c0
commit d349caeb05
2 changed files with 57 additions and 3 deletions
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10
Documentation/devicetree/bindings/sound/mt8173-rt5650.txt
View File

@ -5,11 +5,21 @@ Required properties:
- mediatek,audio-codec: the phandles of rt5650 codecs
- mediatek,platform: the phandle of MT8173 ASoC platform
Optional subnodes:
- codec-capture : the subnode of rt5650 codec capture
Required codec-capture subnode properties:
- sound-dai: audio codec dai name on capture path
<&rt5650 0> : Default setting. Connect rt5650 I2S1 for capture. (dai_name = rt5645-aif1)
<&rt5650 1> : Connect rt5650 I2S2 for capture. (dai_name = rt5645-aif2)
Example:
sound {
compatible = "mediatek,mt8173-rt5650";
mediatek,audio-codec = <&rt5650>;
mediatek,platform = <&afe>;
codec-capture {
sound-dai = <&rt5650 1>;
};
};

50
sound/soc/mediatek/mt8173-rt5650.c
View File

@ -85,12 +85,29 @@ static int mt8173_rt5650_init(struct snd_soc_pcm_runtime *runtime)
{
struct snd_soc_card *card = runtime->card;
struct snd_soc_codec *codec = runtime->codec_dais[0]->codec;
const char *codec_capture_dai = runtime->codec_dais[1]->name;
int ret;
rt5645_sel_asrc_clk_src(codec,
RT5645_DA_STEREO_FILTER |
RT5645_AD_STEREO_FILTER,
RT5645_DA_STEREO_FILTER,
RT5645_CLK_SEL_I2S1_ASRC);
if (!strcmp(codec_capture_dai, "rt5645-aif1")) {
rt5645_sel_asrc_clk_src(codec,
RT5645_AD_STEREO_FILTER,
RT5645_CLK_SEL_I2S1_ASRC);
} else if (!strcmp(codec_capture_dai, "rt5645-aif2")) {
rt5645_sel_asrc_clk_src(codec,
RT5645_AD_STEREO_FILTER,
RT5645_CLK_SEL_I2S2_ASRC);
} else {
dev_warn(card->dev,
"Only one dai codec found in DTS, enabled rt5645 AD filter\n");
rt5645_sel_asrc_clk_src(codec,
RT5645_AD_STEREO_FILTER,
RT5645_CLK_SEL_I2S1_ASRC);
}
/* enable jack detection */
ret = snd_soc_card_jack_new(card, "Headset Jack",
SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
@ -110,6 +127,11 @@ static int mt8173_rt5650_init(struct snd_soc_pcm_runtime *runtime)
static struct snd_soc_dai_link_component mt8173_rt5650_codecs[] = {
{
/* Playback */
.dai_name = "rt5645-aif1",
},
{
/* Capture */
.dai_name = "rt5645-aif1",
},
};
@ -149,7 +171,7 @@ static struct snd_soc_dai_link mt8173_rt5650_dais[] = {
.cpu_dai_name = "I2S",
.no_pcm = 1,
.codecs = mt8173_rt5650_codecs,
.num_codecs = 1,
.num_codecs = 2,
.init = mt8173_rt5650_init,
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS,
@ -177,6 +199,8 @@ static int mt8173_rt5650_dev_probe(struct platform_device *pdev)
{
struct snd_soc_card *card = &mt8173_rt5650_card;
struct device_node *platform_node;
struct device_node *np;
const char *codec_capture_dai;
int i, ret;
platform_node = of_parse_phandle(pdev->dev.of_node,
@ -199,6 +223,26 @@ static int mt8173_rt5650_dev_probe(struct platform_device *pdev)
"Property 'audio-codec' missing or invalid\n");
return -EINVAL;
}
mt8173_rt5650_codecs[1].of_node = mt8173_rt5650_codecs[0].of_node;
if (of_find_node_by_name(platform_node, "codec-capture")) {
np = of_get_child_by_name(pdev->dev.of_node, "codec-capture");
if (!np) {
dev_err(&pdev->dev,
"%s: Can't find codec-capture DT node\n",
__func__);
return -EINVAL;
}
ret = snd_soc_of_get_dai_name(np, &codec_capture_dai);
if (ret < 0) {
dev_err(&pdev->dev,
"%s codec_capture_dai name fail %d\n",
__func__, ret);
return ret;
}
mt8173_rt5650_codecs[1].dai_name = codec_capture_dai;
}
card->dev = &pdev->dev;
platform_set_drvdata(pdev, card);