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ASoC: mediatek: Add machine driver for MAX98090 codec
This is the DPCM based machine driver with MAX98090 Signed-off-by: Koro Chen <koro.chen@mediatek.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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Koro Chen
Mark Brown
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commit
a54f6f0c5b
4 changed files with 238 additions and 0 deletions
13
Documentation/devicetree/bindings/sound/mt8173-max98090.txt
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13
Documentation/devicetree/bindings/sound/mt8173-max98090.txt
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@ -0,0 +1,13 @@
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MT8173 with MAX98090 CODEC
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Required properties:
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- compatible : "mediatek,mt8173-max98090"
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- mediatek,audio-codec: the phandle of the MAX98090 audio codec
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Example:
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sound {
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compatible = "mediatek,mt8173-max98090";
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mediatek,audio-codec = <&max98090>;
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};
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@ -7,3 +7,13 @@ config SND_SOC_MEDIATEK
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Select Y if you have such device.
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Ex: MT8173
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config SND_SOC_MT8173_MAX98090
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tristate "ASoC Audio driver for MT8173 with MAX98090 codec"
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depends on SND_SOC_MEDIATEK
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select SND_SOC_MAX98090
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help
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This adds ASoC driver for Mediatek MT8173 boards
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with the MAX98090 audio codec.
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Select Y if you have such device.
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If unsure select "N".
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@ -1,2 +1,4 @@
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# MTK Platform Support
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obj-$(CONFIG_SND_SOC_MEDIATEK) += mtk-afe-pcm.o
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# Machine support
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obj-$(CONFIG_SND_SOC_MT8173_MAX98090) += mt8173-max98090.o
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213
sound/soc/mediatek/mt8173-max98090.c
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sound/soc/mediatek/mt8173-max98090.c
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@ -0,0 +1,213 @@
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/*
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* mt8173-max98090.c -- MT8173 MAX98090 ALSA SoC machine driver
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*
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* Copyright (c) 2015 MediaTek Inc.
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* Author: Koro Chen <koro.chen@mediatek.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/module.h>
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#include <sound/soc.h>
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#include <sound/jack.h>
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#include <linux/gpio.h>
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#include "../codecs/max98090.h"
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static struct snd_soc_jack mt8173_max98090_jack;
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static struct snd_soc_jack_pin mt8173_max98090_jack_pins[] = {
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{
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.pin = "Headphone",
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.mask = SND_JACK_HEADPHONE,
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},
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{
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.pin = "Headset Mic",
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.mask = SND_JACK_MICROPHONE,
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},
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};
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static const struct snd_soc_dapm_widget mt8173_max98090_widgets[] = {
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SND_SOC_DAPM_SPK("Speaker", NULL),
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SND_SOC_DAPM_MIC("Int Mic", NULL),
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SND_SOC_DAPM_HP("Headphone", NULL),
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SND_SOC_DAPM_MIC("Headset Mic", NULL),
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};
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static const struct snd_soc_dapm_route mt8173_max98090_routes[] = {
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{"Speaker", NULL, "SPKL"},
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{"Speaker", NULL, "SPKR"},
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{"DMICL", NULL, "Int Mic"},
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{"Headphone", NULL, "HPL"},
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{"Headphone", NULL, "HPR"},
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{"Headset Mic", NULL, "MICBIAS"},
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{"IN34", NULL, "Headset Mic"},
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};
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static const struct snd_kcontrol_new mt8173_max98090_controls[] = {
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SOC_DAPM_PIN_SWITCH("Speaker"),
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SOC_DAPM_PIN_SWITCH("Int Mic"),
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SOC_DAPM_PIN_SWITCH("Headphone"),
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SOC_DAPM_PIN_SWITCH("Headset Mic"),
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};
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static int mt8173_max98090_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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return snd_soc_dai_set_sysclk(codec_dai, 0, params_rate(params) * 256,
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SND_SOC_CLOCK_IN);
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}
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static struct snd_soc_ops mt8173_max98090_ops = {
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.hw_params = mt8173_max98090_hw_params,
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};
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static int mt8173_max98090_init(struct snd_soc_pcm_runtime *runtime)
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{
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int ret;
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struct snd_soc_card *card = runtime->card;
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struct snd_soc_codec *codec = runtime->codec;
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/* enable jack detection */
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ret = snd_soc_card_jack_new(card, "Headphone", SND_JACK_HEADPHONE,
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&mt8173_max98090_jack, NULL, 0);
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if (ret) {
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dev_err(card->dev, "Can't snd_soc_jack_new %d\n", ret);
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return ret;
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}
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ret = snd_soc_jack_add_pins(&mt8173_max98090_jack,
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ARRAY_SIZE(mt8173_max98090_jack_pins),
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mt8173_max98090_jack_pins);
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if (ret) {
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dev_err(card->dev, "Can't snd_soc_jack_add_pins %d\n", ret);
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return ret;
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}
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return max98090_mic_detect(codec, &mt8173_max98090_jack);
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}
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/* Digital audio interface glue - connects codec <---> CPU */
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static struct snd_soc_dai_link mt8173_max98090_dais[] = {
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/* Front End DAI links */
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{
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.name = "MAX98090 Playback",
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.stream_name = "MAX98090 Playback",
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.cpu_dai_name = "DL1",
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.platform_name = "11220000.mt8173-afe-pcm",
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.codec_name = "snd-soc-dummy",
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.codec_dai_name = "snd-soc-dummy-dai",
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.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
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.dynamic = 1,
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.dpcm_playback = 1,
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},
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{
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.name = "MAX98090 Capture",
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.stream_name = "MAX98090 Capture",
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.cpu_dai_name = "VUL",
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.platform_name = "11220000.mt8173-afe-pcm",
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.codec_name = "snd-soc-dummy",
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.codec_dai_name = "snd-soc-dummy-dai",
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.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
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.dynamic = 1,
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.dpcm_capture = 1,
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},
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/* Back End DAI links */
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{
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.name = "Codec",
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.cpu_dai_name = "I2S",
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.platform_name = "11220000.mt8173-afe-pcm",
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.no_pcm = 1,
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.codec_dai_name = "HiFi",
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.init = mt8173_max98090_init,
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.ops = &mt8173_max98090_ops,
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBS_CFS,
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.dpcm_playback = 1,
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.dpcm_capture = 1,
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},
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};
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static struct snd_soc_card mt8173_max98090_card = {
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.name = "mt8173-max98090",
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.dai_link = mt8173_max98090_dais,
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.num_links = ARRAY_SIZE(mt8173_max98090_dais),
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.controls = mt8173_max98090_controls,
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.num_controls = ARRAY_SIZE(mt8173_max98090_controls),
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.dapm_widgets = mt8173_max98090_widgets,
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.num_dapm_widgets = ARRAY_SIZE(mt8173_max98090_widgets),
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.dapm_routes = mt8173_max98090_routes,
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.num_dapm_routes = ARRAY_SIZE(mt8173_max98090_routes),
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};
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static int mt8173_max98090_dev_probe(struct platform_device *pdev)
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{
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struct snd_soc_card *card = &mt8173_max98090_card;
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struct device_node *codec_node;
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int ret, i;
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codec_node = of_parse_phandle(pdev->dev.of_node,
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"mediatek,audio-codec", 0);
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if (!codec_node) {
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dev_err(&pdev->dev,
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"Property 'audio-codec' missing or invalid\n");
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return -EINVAL;
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}
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for (i = 0; i < card->num_links; i++) {
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if (mt8173_max98090_dais[i].codec_name)
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continue;
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mt8173_max98090_dais[i].codec_of_node = codec_node;
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}
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card->dev = &pdev->dev;
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ret = snd_soc_register_card(card);
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if (ret)
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dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
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__func__, ret);
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return ret;
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}
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static int mt8173_max98090_dev_remove(struct platform_device *pdev)
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{
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struct snd_soc_card *card = platform_get_drvdata(pdev);
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snd_soc_unregister_card(card);
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return 0;
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}
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static const struct of_device_id mt8173_max98090_dt_match[] = {
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{ .compatible = "mediatek,mt8173-max98090", },
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{ }
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};
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MODULE_DEVICE_TABLE(of, mt8173_max98090_dt_match);
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static struct platform_driver mt8173_max98090_driver = {
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.driver = {
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.name = "mt8173-max98090",
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.owner = THIS_MODULE,
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.of_match_table = mt8173_max98090_dt_match,
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#ifdef CONFIG_PM
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.pm = &snd_soc_pm_ops,
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#endif
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},
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.probe = mt8173_max98090_dev_probe,
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.remove = mt8173_max98090_dev_remove,
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};
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module_platform_driver(mt8173_max98090_driver);
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/* Module information */
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MODULE_DESCRIPTION("MT8173 MAX98090 ALSA SoC machine driver");
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MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>");
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MODULE_LICENSE("GPL v2");
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MODULE_ALIAS("platform:mt8173-max98090");
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