Add machine driver and ACPI probing for Baytrail SST with MAX98090 codec.

Jack detect code from Kevin Strasser kevin.strasser@intel.com, GPIO resolving from Mika Westerberg mika.westerberg@linux.intel.com and fixes and cleanups from Liam Girdwood liam.r.girdwood@linux.intel.com.

Signed-off-by: Jarkko Nikula jarkko.nikula@linux.intel.com --- sound/soc/intel/Kconfig | 10 ++ sound/soc/intel/Makefile | 2 + sound/soc/intel/byt-max98090.c | 252 +++++++++++++++++++++++++++++++++++++++++ sound/soc/intel/sst-acpi.c | 1 + 4 files changed, 265 insertions(+) create mode 100644 sound/soc/intel/byt-max98090.c

diff --git a/sound/soc/intel/Kconfig b/sound/soc/intel/Kconfig index 3c81b3891209..d6c3d840ed82 100644 --- a/sound/soc/intel/Kconfig +++ b/sound/soc/intel/Kconfig @@ -49,3 +49,13 @@ config SND_SOC_INTEL_BYT_RT5640_MACH help This adds audio driver for Intel Baytrail platform based boards with the RT5640 audio codec. + +config SND_SOC_INTEL_BYT_MAX98090_MACH + tristate "ASoC Audio driver for Intel Baytrail with MAX98090 codec" + depends on SND_SOC_INTEL_SST && X86_INTEL_LPSS + select SND_SOC_INTEL_BAYTRAIL + select SND_SOC_MAX98090 + select VLV2_PLAT_CLK + help + This adds audio driver for Intel Baytrail platform based boards + with the MAX98090 audio codec. diff --git a/sound/soc/intel/Makefile b/sound/soc/intel/Makefile index 0db4e2f336dc..4bfca79a42ba 100644 --- a/sound/soc/intel/Makefile +++ b/sound/soc/intel/Makefile @@ -23,6 +23,8 @@ obj-$(CONFIG_SND_SOC_INTEL_BAYTRAIL) += snd-soc-sst-baytrail-pcm.o # Machine support snd-soc-sst-haswell-objs := haswell.o snd-soc-sst-byt-rt5640-mach-objs := byt-rt5640.o +snd-soc-sst-byt-max98090-mach-objs := byt-max98090.o

obj-$(CONFIG_SND_SOC_INTEL_HASWELL_MACH) += snd-soc-sst-haswell.o obj-$(CONFIG_SND_SOC_INTEL_BYT_RT5640_MACH) += snd-soc-sst-byt-rt5640-mach.o +obj-$(CONFIG_SND_SOC_INTEL_BYT_MAX98090_MACH) += snd-soc-sst-byt-max98090-mach.o diff --git a/sound/soc/intel/byt-max98090.c b/sound/soc/intel/byt-max98090.c new file mode 100644 index 000000000000..4246b2c81201 --- /dev/null +++ b/sound/soc/intel/byt-max98090.c @@ -0,0 +1,252 @@ +/* + * Intel Baytrail SST MAX98090 machine driver + * Copyright (c) 2014, Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope 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/init.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/acpi.h> +#include <linux/device.h> +#include <linux/gpio.h> +#include <linux/gpio/consumer.h> +#include <linux/slab.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/jack.h> +#include "../codecs/max98090.h" + +struct byt_max98090_private { + struct snd_soc_jack jack; +}; + +static const struct snd_soc_dapm_widget byt_max98090_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), +}; + +static const struct snd_soc_dapm_route byt_max98090_audio_map[] = { + {"IN34", NULL, "Headset Mic"}, + {"IN34", NULL, "MICBIAS"}, + {"MICBIAS", NULL, "Headset Mic"}, + {"DMICL", NULL, "Int Mic"}, + {"Headphone", NULL, "HPL"}, + {"Headphone", NULL, "HPR"}, + {"Ext Spk", NULL, "SPKL"}, + {"Ext Spk", NULL, "SPKR"}, +}; + +static const struct snd_kcontrol_new byt_max98090_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 struct snd_soc_jack_pin hs_jack_pins[] = { + { + .pin = "Headphone", + .mask = SND_JACK_HEADPHONE, + }, + { + .pin = "Headset Mic", + .mask = SND_JACK_MICROPHONE, + }, + { + .pin = "Ext Spk", + .mask = SND_JACK_LINEOUT, + }, + { + .pin = "Int Mic", + .mask = SND_JACK_LINEIN, + }, +}; + +static struct snd_soc_jack_gpio hs_jack_gpios[] = { + { + .name = "hp-gpio", + .report = SND_JACK_HEADPHONE | SND_JACK_LINEOUT, + .debounce_time = 200, + }, + { + .name = "mic-gpio", + .report = SND_JACK_MICROPHONE | SND_JACK_LINEIN, + .debounce_time = 200, + }, +}; + +static int byt_max98090_init(struct snd_soc_pcm_runtime *runtime) +{ + int ret; + struct snd_soc_codec *codec = runtime->codec; + struct snd_soc_dapm_context *dapm = &codec->dapm; + struct snd_soc_card *card = runtime->card; + struct byt_max98090_private *drv = snd_soc_card_get_drvdata(card); + struct snd_soc_jack *jack = &drv->jack; + struct gpio_desc *mic_desc; + struct gpio_desc *hp_desc; + + card->dapm.idle_bias_off = true; + + ret = snd_soc_dai_set_sysclk(runtime->codec_dai, + M98090_REG_SYSTEM_CLOCK, + 25000000, SND_SOC_CLOCK_IN); + if (ret < 0) { + dev_err(card->dev, "Can't set codec clock %d\n", ret); + return ret; + } + + snd_soc_dapm_enable_pin(dapm, "Headset Mic"); + snd_soc_dapm_enable_pin(dapm, "Headphone"); + snd_soc_dapm_enable_pin(dapm, "Ext Spk"); + snd_soc_dapm_enable_pin(dapm, "Int Mic"); + + snd_soc_dapm_sync(dapm); + + /* + * ASoC still uses legacy GPIOs so we look both GPIOs using + * descriptors here, convert them to numbers and release the + * acquired descriptors. Once ASoC switches over to GPIO descriptor + * APIs we can pass them directly. + */ + hp_desc = gpiod_get_index(card->dev->parent, NULL, 0); + if (IS_ERR(hp_desc)) + return 0; + mic_desc = gpiod_get_index(card->dev->parent, NULL, 1); + if (IS_ERR(mic_desc)) { + gpiod_put(hp_desc); + return 0; + } + + hs_jack_gpios[0].gpio = desc_to_gpio(hp_desc); + hs_jack_gpios[1].gpio = desc_to_gpio(mic_desc); + + gpiod_put(mic_desc); + gpiod_put(hp_desc); + + /* Enable jack detection */ + ret = snd_soc_jack_new(codec, "Headphone", SND_JACK_HEADPHONE, jack); + if (ret) + return ret; + + ret = snd_soc_jack_add_pins(jack, ARRAY_SIZE(hs_jack_pins), + hs_jack_pins); + if (ret) + return ret; + + snd_soc_update_bits(codec, M98090_REG_INTERRUPT_S, M98090_IJDET_MASK, + 1 << M98090_IJDET_SHIFT); + + snd_soc_jack_report(jack, SND_JACK_LINEOUT | SND_JACK_LINEIN, + SND_JACK_HEADSET | SND_JACK_LINEOUT | + SND_JACK_LINEIN); + + ret = snd_soc_jack_add_gpios(jack, ARRAY_SIZE(hs_jack_gpios), + hs_jack_gpios); + + return ret; +} + +static struct snd_soc_dai_link byt_max98090_dais[] = { + { + .name = "Baytrail Audio", + .stream_name = "Audio", + .cpu_dai_name = "baytrail-pcm-audio", + .codec_dai_name = "HiFi", + .codec_name = "i2c-193C9890:00", + .platform_name = "baytrail-pcm-audio", + .init = byt_max98090_init, + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, + }, +}; + +static struct snd_soc_card byt_max98090_card = { + .name = "byt-max98090", + .dai_link = byt_max98090_dais, + .num_links = ARRAY_SIZE(byt_max98090_dais), + .dapm_widgets = byt_max98090_widgets, + .num_dapm_widgets = ARRAY_SIZE(byt_max98090_widgets), + .dapm_routes = byt_max98090_audio_map, + .num_dapm_routes = ARRAY_SIZE(byt_max98090_audio_map), + .controls = byt_max98090_controls, + .num_controls = ARRAY_SIZE(byt_max98090_controls), +}; + +#ifdef CONFIG_PM_SLEEP +static const struct dev_pm_ops byt_max98090_pm_ops = { + .suspend = snd_soc_suspend, + .resume = snd_soc_resume, +}; + +#define BYT_MAX98090_PM_OPS (&byt_max98090_pm_ops) +#else +#define BYT_MAX98090_PM_OPS NULL +#endif + +static int byt_max98090_probe(struct platform_device *pdev) +{ + int ret_val = 0; + struct byt_max98090_private *drv; + + drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_ATOMIC); + if (!drv) { + dev_err(&pdev->dev, "allocation failed\n"); + return -ENOMEM; + } + + /* register the soc card */ + byt_max98090_card.dev = &pdev->dev; + snd_soc_card_set_drvdata(&byt_max98090_card, drv); + ret_val = snd_soc_register_card(&byt_max98090_card); + if (ret_val) { + dev_err(&pdev->dev, + "snd_soc_register_card failed %d\n", ret_val); + return ret_val; + } + platform_set_drvdata(pdev, &byt_max98090_card); + + return ret_val; +} + +static int byt_max98090_remove(struct platform_device *pdev) +{ + struct snd_soc_card *soc_card = platform_get_drvdata(pdev); + struct byt_max98090_private *drv = snd_soc_card_get_drvdata(soc_card); + + snd_soc_jack_free_gpios(&drv->jack, ARRAY_SIZE(hs_jack_gpios), + hs_jack_gpios); + + snd_soc_card_set_drvdata(soc_card, NULL); + snd_soc_unregister_card(soc_card); + platform_set_drvdata(pdev, NULL); + return 0; +} + +static struct platform_driver byt_max98090_driver = { + .probe = byt_max98090_probe, + .remove = byt_max98090_remove, + .driver = { + .name = "byt-max98090", + .owner = THIS_MODULE, + .pm = BYT_MAX98090_PM_OPS, + }, +}; +module_platform_driver(byt_max98090_driver) + +MODULE_DESCRIPTION("ASoC Intel(R) Baytrail Machine driver"); +MODULE_AUTHOR("Omair Md Abdullah, Jarkko Nikula"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:byt-max98090"); diff --git a/sound/soc/intel/sst-acpi.c b/sound/soc/intel/sst-acpi.c index 18aee77f8d4a..42edc6f4fc4a 100644 --- a/sound/soc/intel/sst-acpi.c +++ b/sound/soc/intel/sst-acpi.c @@ -247,6 +247,7 @@ static struct sst_acpi_desc sst_acpi_broadwell_desc = {

static struct sst_acpi_mach baytrail_machines[] = { { "10EC5640", "byt-rt5640", "intel/fw_sst_0f28.bin-i2s_master" }, + { "193C9890", "byt-max98090", "intel/fw_sst_0f28.bin-i2s_master" }, {} };