This is the DPCM based machine driver with MAX98090
Signed-off-by: Koro Chen koro.chen@mediatek.com --- .../devicetree/bindings/sound/mt8173-max98090.txt | 17 ++ sound/soc/mediatek/Kconfig | 11 + sound/soc/mediatek/Makefile | 2 + sound/soc/mediatek/mt8173-max98090.c | 260 +++++++++++++++++++++ 4 files changed, 290 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/mt8173-max98090.txt create mode 100644 sound/soc/mediatek/mt8173-max98090.c
diff --git a/Documentation/devicetree/bindings/sound/mt8173-max98090.txt b/Documentation/devicetree/bindings/sound/mt8173-max98090.txt new file mode 100644 index 0000000..8d6b84c --- /dev/null +++ b/Documentation/devicetree/bindings/sound/mt8173-max98090.txt @@ -0,0 +1,17 @@ +MT8173 with MAX98090 CODEC + +Required properties: +- compatible : "mediatek,mt8173-max98090" +- mediatek,audio-codec: the phandle of the MAX98090 audio codec +- dvdd-supply : the phandle of regulator to supply 1.2V +- avdd-supply : the phandle of regulator to supply 1.8V + +Example: + + sound { + compatible = "mediatek,mt8173-max98090"; + mediatek,audio-codec = <&max98090>; + dvdd-supply = <&mt6397_vgp1_reg>; + avdd-supply = <&mt6397_vgp4_reg>; + }; + diff --git a/sound/soc/mediatek/Kconfig b/sound/soc/mediatek/Kconfig index 38630d4..6fb337e 100644 --- a/sound/soc/mediatek/Kconfig +++ b/sound/soc/mediatek/Kconfig @@ -7,3 +7,14 @@ config SND_SOC_MEDIATEK Select Y if you have such device. Ex: MT8173
+config SND_SOC_MT8173_MAX98090 + bool "ASoC Audio driver for MT8173 with MAX98090 codec" + depends on ARCH_MEDIATEK + select SND_SOC_MEDIATEK + select SND_SOC_MAX98090 + help + This adds ASoC driver for Mediatek MT8173 boards + with the MAX98090 audio codec. + Select Y if you have such device. + If unsure select "N". + diff --git a/sound/soc/mediatek/Makefile b/sound/soc/mediatek/Makefile index 5f27cc7..08fa765 100644 --- a/sound/soc/mediatek/Makefile +++ b/sound/soc/mediatek/Makefile @@ -1,2 +1,4 @@ # MTK Platform Support obj-$(CONFIG_SND_SOC_MEDIATEK) += mtk-afe-pcm.o +# Machine support +obj-$(CONFIG_SND_SOC_MT8173_MAX98090) += mt8173-max98090.o diff --git a/sound/soc/mediatek/mt8173-max98090.c b/sound/soc/mediatek/mt8173-max98090.c new file mode 100644 index 0000000..5cb782a --- /dev/null +++ b/sound/soc/mediatek/mt8173-max98090.c @@ -0,0 +1,260 @@ +/* + * mt8173-max98090.c -- MT8173 MAX98090 ALSA SoC machine driver + * + * Copyright (c) 2015 MediaTek Inc. + * Author: Koro Chen koro.chen@mediatek.com + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/module.h> +#include <sound/soc.h> +#include <sound/jack.h> +#include <linux/gpio.h> +#include <linux/regulator/consumer.h> +#include "../codecs/max98090.h" + +static struct snd_soc_jack mt8173_max98090_jack; + +static struct snd_soc_jack_pin mt8173_max98090_jack_pins[] = { + { + .pin = "Headphone", + .mask = SND_JACK_HEADPHONE, + }, + { + .pin = "Headset Mic", + .mask = SND_JACK_MICROPHONE, + }, +}; + +static const struct snd_soc_dapm_widget mt8173_max98090_widgets[] = { + SND_SOC_DAPM_SPK("Speaker", NULL), + SND_SOC_DAPM_MIC("Int Mic", NULL), + SND_SOC_DAPM_HP("Headphone", NULL), + SND_SOC_DAPM_MIC("Headset Mic", NULL), +}; + +static const struct snd_soc_dapm_route mt8173_max98090_routes[] = { + {"Speaker", NULL, "SPKL"}, + {"Speaker", NULL, "SPKR"}, + {"DMICL", NULL, "Int Mic"}, + {"Headphone", NULL, "HPL"}, + {"Headphone", NULL, "HPR"}, + {"Headset Mic", NULL, "MICBIAS"}, + {"IN34", NULL, "Headset Mic"}, +}; + +static const struct snd_kcontrol_new mt8173_max98090_controls[] = { + SOC_DAPM_PIN_SWITCH("Speaker"), + SOC_DAPM_PIN_SWITCH("Int Mic"), + SOC_DAPM_PIN_SWITCH("Headphone"), + SOC_DAPM_PIN_SWITCH("Headset Mic"), +}; + +static int mt8173_max98090_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + + return snd_soc_dai_set_sysclk(codec_dai, 0, params_rate(params) * 256, + SND_SOC_CLOCK_IN); +} + +static struct snd_soc_ops mt8173_max98090_ops = { + .hw_params = mt8173_max98090_hw_params, +}; + +static int mt8173_max98090_init(struct snd_soc_pcm_runtime *runtime) +{ + int ret; + struct snd_soc_card *card = runtime->card; + struct snd_soc_codec *codec = runtime->codec; + + /* enable jack detection */ + ret = snd_soc_card_jack_new(card, "Headphone", SND_JACK_HEADPHONE, + &mt8173_max98090_jack, NULL, 0); + if (ret) { + dev_err(card->dev, "Can't snd_soc_jack_new %d\n", ret); + return ret; + } + + ret = snd_soc_jack_add_pins(&mt8173_max98090_jack, + ARRAY_SIZE(mt8173_max98090_jack_pins), + mt8173_max98090_jack_pins); + if (ret) { + dev_err(card->dev, "Can't snd_soc_jack_add_pins %d\n", ret); + return ret; + } + + return max98090_mic_detect(codec, &mt8173_max98090_jack); +} + +/* Digital audio interface glue - connects codec <---> CPU */ +static struct snd_soc_dai_link mt8173_max98090_dais[] = { + /* Front End DAI links */ + { + .name = "MAX98090 Playback", + .stream_name = "MAX98090 Playback", + .cpu_dai_name = "DL1", + .platform_name = "11220000.mt8173-afe-pcm", + .codec_name = "snd-soc-dummy", + .codec_dai_name = "snd-soc-dummy-dai", + .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, + .dynamic = 1, + .dpcm_playback = 1, + }, + { + .name = "MAX98090 Capture", + .stream_name = "MAX98090 Capture", + .cpu_dai_name = "VUL", + .platform_name = "11220000.mt8173-afe-pcm", + .codec_name = "snd-soc-dummy", + .codec_dai_name = "snd-soc-dummy-dai", + .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, + .dynamic = 1, + .dpcm_capture = 1, + }, + /* Back End DAI links */ + { + .name = "Codec", + .cpu_dai_name = "I2S", + .platform_name = "11220000.mt8173-afe-pcm", + .no_pcm = 1, + .codec_dai_name = "HiFi", + .codec_name = "max98090.1-0010", + .init = mt8173_max98090_init, + .ops = &mt8173_max98090_ops, + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, + .dpcm_playback = 1, + .dpcm_capture = 1, + }, +}; + +static struct snd_soc_card mt8173_max98090_card = { + .name = "mt8173-max98090", + .dai_link = mt8173_max98090_dais, + .num_links = ARRAY_SIZE(mt8173_max98090_dais), + .controls = mt8173_max98090_controls, + .num_controls = ARRAY_SIZE(mt8173_max98090_controls), + .dapm_widgets = mt8173_max98090_widgets, + .num_dapm_widgets = ARRAY_SIZE(mt8173_max98090_widgets), + .dapm_routes = mt8173_max98090_routes, + .num_dapm_routes = ARRAY_SIZE(mt8173_max98090_routes), +}; + +static int mt8173_max98090_dev_probe(struct platform_device *pdev) +{ + struct snd_soc_card *card = &mt8173_max98090_card; + struct device_node *codec_node; + struct regulator *reg_dvdd, *reg_avdd; + int ret, i; + + codec_node = of_parse_phandle(pdev->dev.of_node, + "mediatek,audio-codec", 0); + if (!codec_node) { + dev_err(&pdev->dev, + "Property 'audio-codec' missing or invalid\n"); + } else { + for (i = 0; i < card->num_links; i++) { + if (mt8173_max98090_dais[i].codec_name && + !strcmp(mt8173_max98090_dais[i].codec_name, + "snd-soc-dummy")) + continue; + mt8173_max98090_dais[i].codec_name = NULL; + mt8173_max98090_dais[i].codec_of_node = codec_node; + } + } + + /* set codec DVDD voltage */ + reg_dvdd = devm_regulator_get(&pdev->dev, "dvdd"); + if (IS_ERR(reg_dvdd)) { + dev_err(&pdev->dev, "failed to get dvdd\n"); + return PTR_ERR(reg_dvdd); + } + ret = regulator_set_voltage(reg_dvdd, 1220000, 1220000); + if (ret != 0) { + dev_err(&pdev->dev, "Failed to set dvdd: %d\n", ret); + return ret; + } + dev_info(&pdev->dev, "dvdd = %d uv\n", + regulator_get_voltage(reg_dvdd)); + + ret = regulator_enable(reg_dvdd); + if (ret != 0) { + dev_err(&pdev->dev, "Failed to enable dvdd: %d\n", ret); + return ret; + } + + /* set codec AVDD/HPVDD/DVDDIO voltage */ + reg_avdd = devm_regulator_get(&pdev->dev, "avdd"); + if (IS_ERR(reg_avdd)) { + dev_err(&pdev->dev, "failed to get avdd\n"); + return PTR_ERR(reg_avdd); + } + ret = regulator_set_voltage(reg_avdd, 1800000, 1800000); + if (ret != 0) { + dev_err(&pdev->dev, "Failed to set avdd: %d\n", ret); + return ret; + } + dev_info(&pdev->dev, "avdd voltage = %d uv\n", + regulator_get_voltage(reg_avdd)); + + ret = regulator_enable(reg_avdd); + if (ret != 0) { + dev_err(&pdev->dev, "Failed to enable avdd: %d\n", ret); + return ret; + } + + card->dev = &pdev->dev; + + ret = snd_soc_register_card(card); + if (ret) + dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n", + __func__, ret); + return ret; +} + +static int mt8173_max98090_dev_remove(struct platform_device *pdev) +{ + struct snd_soc_card *card = platform_get_drvdata(pdev); + + snd_soc_unregister_card(card); + return 0; +} + +static const struct of_device_id mt8173_max98090_dt_match[] = { + { .compatible = "mediatek,mt8173-max98090", }, + { } +}; + +static struct platform_driver mt8173_max98090_driver = { + .driver = { + .name = "mt8173-max98090", + .owner = THIS_MODULE, + .of_match_table = mt8173_max98090_dt_match, +#ifdef CONFIG_PM + .pm = &snd_soc_pm_ops, +#endif + }, + .probe = mt8173_max98090_dev_probe, + .remove = mt8173_max98090_dev_remove, +}; + +module_platform_driver(mt8173_max98090_driver); + +/* Module information */ +MODULE_DESCRIPTION("MT8173 MAX98090 ALSA SoC machine driver"); +MODULE_AUTHOR("Koro Chen koro.chen@mediatek.com"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:mt8173-max98090"); +MODULE_DEVICE_TABLE(of, mt8173_max98090_dt_match); +