/* * cht-bsw-max98090.c - ASoc Machine driver for Intel Cherryview-based * platforms Cherrytrail and Braswell, with max98090 & TI codec. * * Copyright (C) 2015 Intel Corp * Author: Fang, Yang A * This file is modified from cht_bsw_rt5645.c * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * 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 #include #include #include #include #include #include #include #include #include #include "../../codecs/max98090.h" #include "../atom/sst-atom-controls.h" #include "../../codecs/ts3a227e.h" #define CHT_PLAT_CLK_3_HZ 19200000 #define CHT_CODEC_DAI "HiFi" #define QUIRK_PMC_PLT_CLK_0 0x01 struct cht_mc_private { struct clk *mclk; struct snd_soc_jack jack; bool ts3a227e_present; int quirks; }; static int platform_clock_control(struct snd_soc_dapm_widget *w, struct snd_kcontrol *k, int event) { struct snd_soc_dapm_context *dapm = w->dapm; struct snd_soc_card *card = dapm->card; struct snd_soc_dai *codec_dai; struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card); int ret; /* See the comment in snd_cht_mc_probe() */ if (ctx->quirks & QUIRK_PMC_PLT_CLK_0) return 0; codec_dai = snd_soc_card_get_codec_dai(card, CHT_CODEC_DAI); if (!codec_dai) { dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n"); return -EIO; } if (SND_SOC_DAPM_EVENT_ON(event)) { ret = clk_prepare_enable(ctx->mclk); if (ret < 0) { dev_err(card->dev, "could not configure MCLK state"); return ret; } } else { clk_disable_unprepare(ctx->mclk); } return 0; } static const struct snd_soc_dapm_widget cht_dapm_widgets[] = { SND_SOC_DAPM_HP("Headphone", NULL), SND_SOC_DAPM_MIC("Headset Mic", NULL), SND_SOC_DAPM_MIC("Int Mic", NULL), SND_SOC_DAPM_SPK("Ext Spk", NULL), SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, platform_clock_control, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), }; static const struct snd_soc_dapm_route cht_audio_map[] = { {"IN34", NULL, "Headset Mic"}, {"Headset Mic", NULL, "MICBIAS"}, {"DMICL", NULL, "Int Mic"}, {"Headphone", NULL, "HPL"}, {"Headphone", NULL, "HPR"}, {"Ext Spk", NULL, "SPKL"}, {"Ext Spk", NULL, "SPKR"}, {"HiFi Playback", NULL, "ssp2 Tx"}, {"ssp2 Tx", NULL, "codec_out0"}, {"ssp2 Tx", NULL, "codec_out1"}, {"codec_in0", NULL, "ssp2 Rx" }, {"codec_in1", NULL, "ssp2 Rx" }, {"ssp2 Rx", NULL, "HiFi Capture"}, {"Headphone", NULL, "Platform Clock"}, {"Headset Mic", NULL, "Platform Clock"}, {"Int Mic", NULL, "Platform Clock"}, {"Ext Spk", NULL, "Platform Clock"}, }; static const struct snd_kcontrol_new cht_mc_controls[] = { SOC_DAPM_PIN_SWITCH("Headphone"), SOC_DAPM_PIN_SWITCH("Headset Mic"), SOC_DAPM_PIN_SWITCH("Int Mic"), SOC_DAPM_PIN_SWITCH("Ext Spk"), }; static int cht_aif1_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; int ret; ret = snd_soc_dai_set_sysclk(codec_dai, M98090_REG_SYSTEM_CLOCK, CHT_PLAT_CLK_3_HZ, SND_SOC_CLOCK_IN); if (ret < 0) { dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret); return ret; } return 0; } static int cht_ti_jack_event(struct notifier_block *nb, unsigned long event, void *data) { struct snd_soc_jack *jack = (struct snd_soc_jack *)data; struct snd_soc_dapm_context *dapm = &jack->card->dapm; if (event & SND_JACK_MICROPHONE) { snd_soc_dapm_force_enable_pin(dapm, "SHDN"); snd_soc_dapm_force_enable_pin(dapm, "MICBIAS"); snd_soc_dapm_sync(dapm); } else { snd_soc_dapm_disable_pin(dapm, "MICBIAS"); snd_soc_dapm_disable_pin(dapm, "SHDN"); snd_soc_dapm_sync(dapm); } return 0; } static struct notifier_block cht_jack_nb = { .notifier_call = cht_ti_jack_event, }; static struct snd_soc_jack_pin hs_jack_pins[] = { { .pin = "Headphone", .mask = SND_JACK_HEADPHONE, }, { .pin = "Headset Mic", .mask = SND_JACK_MICROPHONE, }, }; static struct snd_soc_jack_gpio hs_jack_gpios[] = { { .name = "hp", .report = SND_JACK_HEADPHONE | SND_JACK_LINEOUT, .debounce_time = 200, }, { .name = "mic", .invert = 1, .report = SND_JACK_MICROPHONE, .debounce_time = 200, }, }; static const struct acpi_gpio_params hp_gpios = { 0, 0, false }; static const struct acpi_gpio_params mic_gpios = { 1, 0, false }; static const struct acpi_gpio_mapping acpi_max98090_gpios[] = { { "hp-gpios", &hp_gpios, 1 }, { "mic-gpios", &mic_gpios, 1 }, {}, }; static int cht_codec_init(struct snd_soc_pcm_runtime *runtime) { int ret; int jack_type; struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card); struct snd_soc_jack *jack = &ctx->jack; if (ctx->ts3a227e_present) { /* * The jack has already been created in the * cht_max98090_headset_init() function. */ snd_soc_jack_notifier_register(jack, &cht_jack_nb); return 0; } jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE; ret = snd_soc_card_jack_new(runtime->card, "Headset Jack", jack_type, jack, hs_jack_pins, ARRAY_SIZE(hs_jack_pins)); if (ret) { dev_err(runtime->dev, "Headset Jack creation failed %d\n", ret); return ret; } ret = snd_soc_jack_add_gpiods(runtime->card->dev->parent, jack, ARRAY_SIZE(hs_jack_gpios), hs_jack_gpios); if (ret) { /* * flag error but don't bail if jack detect is broken * due to platform issues or bad BIOS/configuration */ dev_err(runtime->dev, "jack detection gpios not added, error %d\n", ret); } /* See the comment in snd_cht_mc_probe() */ if (ctx->quirks & QUIRK_PMC_PLT_CLK_0) return 0; /* * The firmware might enable the clock at * boot (this information may or may not * be reflected in the enable clock register). * To change the rate we must disable the clock * first to cover these cases. Due to common * clock framework restrictions that do not allow * to disable a clock that has not been enabled, * we need to enable the clock first. */ ret = clk_prepare_enable(ctx->mclk); if (!ret) clk_disable_unprepare(ctx->mclk); ret = clk_set_rate(ctx->mclk, CHT_PLAT_CLK_3_HZ); if (ret) dev_err(runtime->dev, "unable to set MCLK rate\n"); return ret; } static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd, struct snd_pcm_hw_params *params) { struct snd_interval *rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); struct snd_interval *channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); int ret = 0; unsigned int fmt = 0; ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16); if (ret < 0) { dev_err(rtd->dev, "can't set cpu_dai slot fmt: %d\n", ret); return ret; } fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS; ret = snd_soc_dai_set_fmt(rtd->cpu_dai, fmt); if (ret < 0) { dev_err(rtd->dev, "can't set cpu_dai set fmt: %d\n", ret); return ret; } /* The DSP will covert the FE rate to 48k, stereo, 24bits */ rate->min = rate->max = 48000; channels->min = channels->max = 2; /* set SSP2 to 16-bit */ params_set_format(params, SNDRV_PCM_FORMAT_S16_LE); return 0; } static int cht_aif1_startup(struct snd_pcm_substream *substream) { return snd_pcm_hw_constraint_single(substream->runtime, SNDRV_PCM_HW_PARAM_RATE, 48000); } static int cht_max98090_headset_init(struct snd_soc_component *component) { struct snd_soc_card *card = component->card; struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card); struct snd_soc_jack *jack = &ctx->jack; int jack_type; int ret; /* * TI supports 4 butons headset detection * KEY_MEDIA * KEY_VOICECOMMAND * KEY_VOLUMEUP * KEY_VOLUMEDOWN */ jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE | SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2 | SND_JACK_BTN_3; ret = snd_soc_card_jack_new(card, "Headset Jack", jack_type, jack, NULL, 0); if (ret) { dev_err(card->dev, "Headset Jack creation failed %d\n", ret); return ret; } return ts3a227e_enable_jack_detect(component, jack); } static const struct snd_soc_ops cht_aif1_ops = { .startup = cht_aif1_startup, }; static const struct snd_soc_ops cht_be_ssp2_ops = { .hw_params = cht_aif1_hw_params, }; static struct snd_soc_aux_dev cht_max98090_headset_dev = { .name = "Headset Chip", .init = cht_max98090_headset_init, .codec_name = "i2c-104C227E:00", }; static struct snd_soc_dai_link cht_dailink[] = { [MERR_DPCM_AUDIO] = { .name = "Audio Port", .stream_name = "Audio", .cpu_dai_name = "media-cpu-dai", .codec_dai_name = "snd-soc-dummy-dai", .codec_name = "snd-soc-dummy", .platform_name = "sst-mfld-platform", .nonatomic = true, .dynamic = 1, .dpcm_playback = 1, .dpcm_capture = 1, .ops = &cht_aif1_ops, }, [MERR_DPCM_DEEP_BUFFER] = { .name = "Deep-Buffer Audio Port", .stream_name = "Deep-Buffer Audio", .cpu_dai_name = "deepbuffer-cpu-dai", .codec_dai_name = "snd-soc-dummy-dai", .codec_name = "snd-soc-dummy", .platform_name = "sst-mfld-platform", .nonatomic = true, .dynamic = 1, .dpcm_playback = 1, .ops = &cht_aif1_ops, }, /* back ends */ { .name = "SSP2-Codec", .id = 0, .cpu_dai_name = "ssp2-port", .platform_name = "sst-mfld-platform", .no_pcm = 1, .codec_dai_name = "HiFi", .codec_name = "i2c-193C9890:00", .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS, .init = cht_codec_init, .be_hw_params_fixup = cht_codec_fixup, .dpcm_playback = 1, .dpcm_capture = 1, .ops = &cht_be_ssp2_ops, }, }; /* SoC card */ static struct snd_soc_card snd_soc_card_cht = { .name = "chtmax98090", .owner = THIS_MODULE, .dai_link = cht_dailink, .num_links = ARRAY_SIZE(cht_dailink), .aux_dev = &cht_max98090_headset_dev, .num_aux_devs = 1, .dapm_widgets = cht_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets), .dapm_routes = cht_audio_map, .num_dapm_routes = ARRAY_SIZE(cht_audio_map), .controls = cht_mc_controls, .num_controls = ARRAY_SIZE(cht_mc_controls), }; static const struct dmi_system_id cht_max98090_quirk_table[] = { { /* Clapper model Chromebook */ .matches = { DMI_MATCH(DMI_PRODUCT_NAME, "Clapper"), }, .driver_data = (void *)QUIRK_PMC_PLT_CLK_0, }, { /* Gnawty model Chromebook (Acer Chromebook CB3-111) */ .matches = { DMI_MATCH(DMI_PRODUCT_NAME, "Gnawty"), }, .driver_data = (void *)QUIRK_PMC_PLT_CLK_0, }, { /* Swanky model Chromebook (Toshiba Chromebook 2) */ .matches = { DMI_MATCH(DMI_PRODUCT_NAME, "Swanky"), }, .driver_data = (void *)QUIRK_PMC_PLT_CLK_0, }, {} }; static int snd_cht_mc_probe(struct platform_device *pdev) { const struct dmi_system_id *dmi_id; struct device *dev = &pdev->dev; int ret_val = 0; struct cht_mc_private *drv; const char *mclk_name; drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL); if (!drv) return -ENOMEM; dmi_id = dmi_first_match(cht_max98090_quirk_table); if (dmi_id) drv->quirks = (unsigned long)dmi_id->driver_data; drv->ts3a227e_present = acpi_dev_found("104C227E"); if (!drv->ts3a227e_present) { /* no need probe TI jack detection chip */ snd_soc_card_cht.aux_dev = NULL; snd_soc_card_cht.num_aux_devs = 0; ret_val = devm_acpi_dev_add_driver_gpios(dev->parent, acpi_max98090_gpios); if (ret_val) dev_dbg(dev, "Unable to add GPIO mapping table\n"); } /* register the soc card */ snd_soc_card_cht.dev = &pdev->dev; snd_soc_card_set_drvdata(&snd_soc_card_cht, drv); if (drv->quirks & QUIRK_PMC_PLT_CLK_0) mclk_name = "pmc_plt_clk_0"; else mclk_name = "pmc_plt_clk_3"; drv->mclk = devm_clk_get(&pdev->dev, mclk_name); if (IS_ERR(drv->mclk)) { dev_err(&pdev->dev, "Failed to get MCLK from %s: %ld\n", mclk_name, PTR_ERR(drv->mclk)); return PTR_ERR(drv->mclk); } /* * Boards which have the MAX98090's clk connected to clk_0 do not seem * to like it if we muck with the clock. If we disable the clock when * it is unused we get "max98090 i2c-193C9890:00: PLL unlocked" errors * and the PLL never seems to lock again. * So for these boards we enable it here once and leave it at that. */ if (drv->quirks & QUIRK_PMC_PLT_CLK_0) { ret_val = clk_prepare_enable(drv->mclk); if (ret_val < 0) { dev_err(&pdev->dev, "MCLK enable error: %d\n", ret_val); return ret_val; } } ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht); if (ret_val) { dev_err(&pdev->dev, "snd_soc_register_card failed %d\n", ret_val); return ret_val; } platform_set_drvdata(pdev, &snd_soc_card_cht); return ret_val; } static int snd_cht_mc_remove(struct platform_device *pdev) { struct snd_soc_card *card = platform_get_drvdata(pdev); struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card); if (ctx->quirks & QUIRK_PMC_PLT_CLK_0) clk_disable_unprepare(ctx->mclk); return 0; } static struct platform_driver snd_cht_mc_driver = { .driver = { .name = "cht-bsw-max98090", }, .probe = snd_cht_mc_probe, .remove = snd_cht_mc_remove, }; module_platform_driver(snd_cht_mc_driver) MODULE_DESCRIPTION("ASoC Intel(R) Braswell Machine driver"); MODULE_AUTHOR("Fang, Yang A "); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:cht-bsw-max98090");