--- /dev/null
+/*
+ * 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"},
+ {"Headset Mic", NULL, "MICBIAS"},
+ {"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,
+ },
+};
+
+static struct snd_soc_jack_gpio hs_jack_gpios[] = {
+ {
+ .name = "hp-gpio",
+ .idx = 0,
+ .report = SND_JACK_HEADPHONE | SND_JACK_LINEOUT,
+ .debounce_time = 200,
+ },
+ {
+ .name = "mic-gpio",
+ .idx = 1,
+ .invert = 1,
+ .report = SND_JACK_MICROPHONE,
+ .debounce_time = 200,
+ },
+};
+
+static int byt_max98090_init(struct snd_soc_pcm_runtime *runtime)
+{
+ int ret;
+ 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;
+
+ 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;
+ }
+
+ /* Enable jack detection */
+ ret = snd_soc_card_jack_new(runtime->card, "Headset",
+ SND_JACK_LINEOUT | SND_JACK_HEADSET, jack,
+ hs_jack_pins, ARRAY_SIZE(hs_jack_pins));
+ if (ret)
+ return ret;
+
+ return snd_soc_jack_add_gpiods(card->dev->parent, jack,
+ ARRAY_SIZE(hs_jack_gpios),
+ hs_jack_gpios);
+}
+
+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),
+ .fully_routed = true,
+};
+
+static int byt_max98090_probe(struct platform_device *pdev)
+{
+ int ret_val = 0;
+ struct byt_max98090_private *priv;
+
+ priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_ATOMIC);
+ if (!priv) {
+ dev_err(&pdev->dev, "allocation failed\n");
+ return -ENOMEM;
+ }
+
+ byt_max98090_card.dev = &pdev->dev;
+ snd_soc_card_set_drvdata(&byt_max98090_card, priv);
+ ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_max98090_card);
+ if (ret_val) {
+ dev_err(&pdev->dev,
+ "snd_soc_register_card failed %d\n", ret_val);
+ return ret_val;
+ }
+
+ return ret_val;
+}
+
+static int byt_max98090_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+ struct byt_max98090_private *priv = snd_soc_card_get_drvdata(card);
+
+ snd_soc_jack_free_gpios(&priv->jack, ARRAY_SIZE(hs_jack_gpios),
+ hs_jack_gpios);
+
+ return 0;
+}
+
+static struct platform_driver byt_max98090_driver = {
+ .probe = byt_max98090_probe,
+ .remove = byt_max98090_remove,
+ .driver = {
+ .name = "byt-max98090",
+ .pm = &snd_soc_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");
Code Review / kvmfornfv.git / blobdiff