From: Maso Huang maso.huang@mediatek.com
Add support for mt79xx board with wm8960.
Signed-off-by: Maso Huang maso.huang@mediatek.com --- sound/soc/mediatek/Kconfig | 10 ++ sound/soc/mediatek/mt79xx/Makefile | 1 + sound/soc/mediatek/mt79xx/mt79xx-wm8960.c | 185 ++++++++++++++++++++++ 3 files changed, 196 insertions(+) create mode 100644 sound/soc/mediatek/mt79xx/mt79xx-wm8960.c
diff --git a/sound/soc/mediatek/Kconfig b/sound/soc/mediatek/Kconfig index 192546078d5e..bf641af72210 100644 --- a/sound/soc/mediatek/Kconfig +++ b/sound/soc/mediatek/Kconfig @@ -64,6 +64,16 @@ config SND_SOC_MT79XX Select Y if you have such device. If unsure select "N".
+config SND_SOC_MT79XX_WM8960 + tristate "ASoc Audio driver for MT79XX with WM8960 codec" + depends on SND_SOC_MT79XX && I2C + select SND_SOC_WM8960 + help + This adds support for ASoC machine driver for MediaTek MT79XX + boards with the WM8960 codecs. + Select Y if you have such device. + If unsure select "N". + config SND_SOC_MT8173 tristate "ASoC support for Mediatek MT8173 chip" depends on ARCH_MEDIATEK diff --git a/sound/soc/mediatek/mt79xx/Makefile b/sound/soc/mediatek/mt79xx/Makefile index 984b20ae8819..c910ee88d930 100644 --- a/sound/soc/mediatek/mt79xx/Makefile +++ b/sound/soc/mediatek/mt79xx/Makefile @@ -7,3 +7,4 @@ snd-soc-mt79xx-afe-objs := \ mt79xx-dai-etdm.o
obj-$(CONFIG_SND_SOC_MT79XX) += snd-soc-mt79xx-afe.o +obj-$(CONFIG_SND_SOC_MT79XX_WM8960) += mt79xx-wm8960.o diff --git a/sound/soc/mediatek/mt79xx/mt79xx-wm8960.c b/sound/soc/mediatek/mt79xx/mt79xx-wm8960.c new file mode 100644 index 000000000000..d1a01a2bb6ae --- /dev/null +++ b/sound/soc/mediatek/mt79xx/mt79xx-wm8960.c @@ -0,0 +1,185 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * mt79xx-wm8960.c -- MT79xx-WM8960 ALSA SoC machine driver + * + * Copyright (c) 2021 MediaTek Inc. + * Author: Vic Wu vic.wu@mediatek.com + * Maso Huang maso.huang@mediatek.com + */ + +#include <linux/module.h> +#include <sound/soc.h> + +#include "mt79xx-afe-common.h" + +struct mt79xx_wm8960_priv { + struct device_node *platform_node; + struct device_node *codec_node; +}; + +static const struct snd_soc_dapm_widget mt79xx_wm8960_widgets[] = { + SND_SOC_DAPM_HP("Headphone", NULL), + SND_SOC_DAPM_MIC("AMIC", NULL), +}; + +static const struct snd_kcontrol_new mt79xx_wm8960_controls[] = { + SOC_DAPM_PIN_SWITCH("Headphone"), + SOC_DAPM_PIN_SWITCH("AMIC"), +}; + +SND_SOC_DAILINK_DEFS(playback, + DAILINK_COMP_ARRAY(COMP_CPU("DL1")), + DAILINK_COMP_ARRAY(COMP_DUMMY()), + DAILINK_COMP_ARRAY(COMP_EMPTY())); + +SND_SOC_DAILINK_DEFS(capture, + DAILINK_COMP_ARRAY(COMP_CPU("UL1")), + DAILINK_COMP_ARRAY(COMP_DUMMY()), + DAILINK_COMP_ARRAY(COMP_EMPTY())); + +SND_SOC_DAILINK_DEFS(codec, + DAILINK_COMP_ARRAY(COMP_CPU("ETDM")), + DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8960-hifi")), + DAILINK_COMP_ARRAY(COMP_EMPTY())); + +static struct snd_soc_dai_link mt79xx_wm8960_dai_links[] = { + /* FE */ + { + .name = "wm8960-playback", + .stream_name = "wm8960-playback", + .trigger = {SND_SOC_DPCM_TRIGGER_POST, + SND_SOC_DPCM_TRIGGER_POST}, + .dynamic = 1, + .dpcm_playback = 1, + SND_SOC_DAILINK_REG(playback), + }, + { + .name = "wm8960-capture", + .stream_name = "wm8960-capture", + .trigger = {SND_SOC_DPCM_TRIGGER_POST, + SND_SOC_DPCM_TRIGGER_POST}, + .dynamic = 1, + .dpcm_capture = 1, + SND_SOC_DAILINK_REG(capture), + }, + /* BE */ + { + .name = "wm8960-codec", + .no_pcm = 1, + .dai_fmt = SND_SOC_DAIFMT_I2S | + SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS | + SND_SOC_DAIFMT_GATED, + .dpcm_playback = 1, + .dpcm_capture = 1, + SND_SOC_DAILINK_REG(codec), + }, +}; + +static struct snd_soc_card mt79xx_wm8960_card = { + .name = "mt79xx-wm8960", + .owner = THIS_MODULE, + .dai_link = mt79xx_wm8960_dai_links, + .num_links = ARRAY_SIZE(mt79xx_wm8960_dai_links), + .controls = mt79xx_wm8960_controls, + .num_controls = ARRAY_SIZE(mt79xx_wm8960_controls), + .dapm_widgets = mt79xx_wm8960_widgets, + .num_dapm_widgets = ARRAY_SIZE(mt79xx_wm8960_widgets), +}; + +static int mt79xx_wm8960_machine_probe(struct platform_device *pdev) +{ + struct snd_soc_card *card = &mt79xx_wm8960_card; + struct snd_soc_dai_link *dai_link; + struct mt79xx_wm8960_priv *priv; + int ret, i; + + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->platform_node = of_parse_phandle(pdev->dev.of_node, + "mediatek,platform", 0); + if (!priv->platform_node) { + dev_err(&pdev->dev, "Property 'platform' missing or invalid\n"); + return -EINVAL; + } + + for_each_card_prelinks(card, i, dai_link) { + if (dai_link->platforms->name) + continue; + dai_link->platforms->of_node = priv->platform_node; + } + + card->dev = &pdev->dev; + + priv->codec_node = of_parse_phandle(pdev->dev.of_node, + "mediatek,audio-codec", 0); + if (!priv->codec_node) { + dev_err(&pdev->dev, + "Property 'audio-codec' missing or invalid\n"); + of_node_put(priv->platform_node); + return -EINVAL; + } + + for_each_card_prelinks(card, i, dai_link) { + if (dai_link->codecs->name) + continue; + dai_link->codecs->of_node = priv->codec_node; + } + + ret = snd_soc_of_parse_audio_routing(card, "audio-routing"); + if (ret) { + dev_err(&pdev->dev, "failed to parse audio-routing: %d\n", ret); + goto err_of_node_put; + } + + ret = devm_snd_soc_register_card(&pdev->dev, card); + if (ret) { + dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n", + __func__, ret); + goto err_of_node_put; + } + +err_of_node_put: + of_node_put(priv->codec_node); + of_node_put(priv->platform_node); + return ret; +} + +static int mt79xx_wm8960_machine_remove(struct platform_device *pdev) +{ + struct snd_soc_card *card = platform_get_drvdata(pdev); + struct mt79xx_wm8960_priv *priv = snd_soc_card_get_drvdata(card); + + of_node_put(priv->codec_node); + of_node_put(priv->platform_node); + + return 0; +} + +#ifdef CONFIG_OF +static const struct of_device_id mt79xx_wm8960_machine_dt_match[] = { + {.compatible = "mediatek,mt79xx-wm8960-machine",}, + {} +}; +#endif + +static struct platform_driver mt79xx_wm8960_machine = { + .driver = { + .name = "mt79xx-wm8960", +#ifdef CONFIG_OF + .of_match_table = mt79xx_wm8960_machine_dt_match, +#endif + }, + .probe = mt79xx_wm8960_machine_probe, + .remove = mt79xx_wm8960_machine_remove, +}; + +module_platform_driver(mt79xx_wm8960_machine); + +/* Module information */ +MODULE_DESCRIPTION("MT79xx WM8960 ALSA SoC machine driver"); +MODULE_AUTHOR("Vic Wu vic.wu@mediatek.com"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("mt79xx wm8960 soc card");