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// SPDX-License-Identifier: GPL-2.0-only
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* Rockchip machine ASoC driver for boards using a MAX90809 CODEC.
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* Copyright (c) 2014, ROCKCHIP CORPORATION. All rights reserved.
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#include <linux/module.h>
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#include <linux/of_device.h>
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#include <linux/platform_device.h>
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#include <linux/slab.h>
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#include <linux/gpio.h>
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#include <linux/of_gpio.h>
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#include <sound/core.h>
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#include <sound/hdmi-codec.h>
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#include <sound/jack.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include "rockchip_i2s.h"
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#include "../codecs/ts3a227e.h"
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#define DRV_NAME "rockchip-snd-max98090"
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static struct snd_soc_jack headset_jack;
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/* Headset jack detection DAPM pins */
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static struct snd_soc_jack_pin headset_jack_pins[] = {
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.mask = SND_JACK_HEADPHONE,
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.mask = SND_JACK_MICROPHONE,
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#define RK_MAX98090_WIDGETS \
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SND_SOC_DAPM_HP("Headphone", NULL), \
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SND_SOC_DAPM_MIC("Headset Mic", NULL), \
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SND_SOC_DAPM_MIC("Int Mic", NULL), \
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SND_SOC_DAPM_SPK("Speaker", NULL)
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#define RK_HDMI_WIDGETS \
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SND_SOC_DAPM_LINE("HDMI", NULL)
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static const struct snd_soc_dapm_widget rk_max98090_dapm_widgets[] = {
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static const struct snd_soc_dapm_widget rk_hdmi_dapm_widgets[] = {
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static const struct snd_soc_dapm_widget rk_max98090_hdmi_dapm_widgets[] = {
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#define RK_MAX98090_AUDIO_MAP \
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{"IN34", NULL, "Headset Mic"}, \
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{"Headset Mic", NULL, "MICBIAS"}, \
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{"DMICL", NULL, "Int Mic"}, \
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{"Headphone", NULL, "HPL"}, \
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{"Headphone", NULL, "HPR"}, \
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{"Speaker", NULL, "SPKL"}, \
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{"Speaker", NULL, "SPKR"}
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#define RK_HDMI_AUDIO_MAP \
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static const struct snd_soc_dapm_route rk_max98090_audio_map[] = {
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RK_MAX98090_AUDIO_MAP,
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static const struct snd_soc_dapm_route rk_hdmi_audio_map[] = {
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static const struct snd_soc_dapm_route rk_max98090_hdmi_audio_map[] = {
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RK_MAX98090_AUDIO_MAP,
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#define RK_MAX98090_CONTROLS \
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SOC_DAPM_PIN_SWITCH("Headphone"), \
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SOC_DAPM_PIN_SWITCH("Headset Mic"), \
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SOC_DAPM_PIN_SWITCH("Int Mic"), \
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SOC_DAPM_PIN_SWITCH("Speaker")
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#define RK_HDMI_CONTROLS \
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SOC_DAPM_PIN_SWITCH("HDMI")
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static const struct snd_kcontrol_new rk_max98090_controls[] = {
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static const struct snd_kcontrol_new rk_hdmi_controls[] = {
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static const struct snd_kcontrol_new rk_max98090_hdmi_controls[] = {
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RK_MAX98090_CONTROLS,
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static int rk_jack_event(struct notifier_block *nb, unsigned long event,
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struct snd_soc_jack *jack = (struct snd_soc_jack *)data;
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struct snd_soc_dapm_context *dapm = &jack->card->dapm;
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if (event & SND_JACK_MICROPHONE) {
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snd_soc_dapm_force_enable_pin(dapm, "MICBIAS");
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snd_soc_dapm_force_enable_pin(dapm, "SHDN");
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snd_soc_dapm_disable_pin(dapm, "MICBIAS");
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snd_soc_dapm_disable_pin(dapm, "SHDN");
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snd_soc_dapm_sync(dapm);
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static struct notifier_block rk_jack_nb = {
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.notifier_call = rk_jack_event,
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static int rk_init(struct snd_soc_pcm_runtime *runtime)
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* The jack has already been created in the rk_98090_headset_init()
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snd_soc_jack_notifier_register(&headset_jack, &rk_jack_nb);
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static int rk_aif1_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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switch (params_rate(params)) {
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ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
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dev_err(cpu_dai->dev, "Can't set cpu dai clock %d\n", ret);
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ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
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/* HDMI codec dai does not need to set sysclk. */
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if (!strcmp(rtd->dai_link->name, "HDMI"))
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dev_err(codec_dai->dev, "Can't set codec dai clock %d\n", ret);
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static int rk_aif1_startup(struct snd_pcm_substream *substream)
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* Set period size to 240 because pl330 has issue
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* dealing with larger period in stress testing.
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return snd_pcm_hw_constraint_minmax(substream->runtime,
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SNDRV_PCM_HW_PARAM_PERIOD_SIZE, 240, 240);
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static const struct snd_soc_ops rk_aif1_ops = {
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.hw_params = rk_aif1_hw_params,
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.startup = rk_aif1_startup,
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SND_SOC_DAILINK_DEFS(analog,
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DAILINK_COMP_ARRAY(COMP_EMPTY()),
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DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "HiFi")),
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DAILINK_COMP_ARRAY(COMP_EMPTY()));
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SND_SOC_DAILINK_DEFS(hdmi,
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DAILINK_COMP_ARRAY(COMP_EMPTY()),
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DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "i2s-hifi")),
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DAILINK_COMP_ARRAY(COMP_EMPTY()));
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static struct snd_soc_jack rk_hdmi_jack;
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static int rk_hdmi_init(struct snd_soc_pcm_runtime *runtime)
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struct snd_soc_card *card = runtime->card;
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struct snd_soc_component *component = runtime->codec_dai->component;
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/* enable jack detection */
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ret = snd_soc_card_jack_new(card, "HDMI Jack", SND_JACK_LINEOUT,
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&rk_hdmi_jack, NULL, 0);
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dev_err(card->dev, "Can't new HDMI Jack %d\n", ret);
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return hdmi_codec_set_jack_detect(component, &rk_hdmi_jack);
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/* max98090 dai_link */
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static struct snd_soc_dai_link rk_max98090_dailinks[] = {
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.stream_name = "Analog",
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/* set max98090 as slave */
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBS_CFS,
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SND_SOC_DAILINK_REG(analog),
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/* HDMI codec dai_link */
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static struct snd_soc_dai_link rk_hdmi_dailinks[] = {
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.stream_name = "HDMI",
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.init = rk_hdmi_init,
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBS_CFS,
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SND_SOC_DAILINK_REG(hdmi),
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/* max98090 and HDMI codec dai_link */
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static struct snd_soc_dai_link rk_max98090_hdmi_dailinks[] = {
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[DAILINK_MAX98090] = {
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.stream_name = "Analog",
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/* set max98090 as slave */
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBS_CFS,
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SND_SOC_DAILINK_REG(analog),
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.stream_name = "HDMI",
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.init = rk_hdmi_init,
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBS_CFS,
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SND_SOC_DAILINK_REG(hdmi),
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static int rk_98090_headset_init(struct snd_soc_component *component);
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static struct snd_soc_aux_dev rk_98090_headset_dev = {
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.init = rk_98090_headset_init,
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static struct snd_soc_card rockchip_max98090_card = {
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.name = "ROCKCHIP-I2S",
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.owner = THIS_MODULE,
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.dai_link = rk_max98090_dailinks,
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.num_links = ARRAY_SIZE(rk_max98090_dailinks),
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.aux_dev = &rk_98090_headset_dev,
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.dapm_widgets = rk_max98090_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(rk_max98090_dapm_widgets),
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.dapm_routes = rk_max98090_audio_map,
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.num_dapm_routes = ARRAY_SIZE(rk_max98090_audio_map),
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.controls = rk_max98090_controls,
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.num_controls = ARRAY_SIZE(rk_max98090_controls),
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static struct snd_soc_card rockchip_hdmi_card = {
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.name = "ROCKCHIP-HDMI",
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.owner = THIS_MODULE,
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.dai_link = rk_hdmi_dailinks,
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.num_links = ARRAY_SIZE(rk_hdmi_dailinks),
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.dapm_widgets = rk_hdmi_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(rk_hdmi_dapm_widgets),
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.dapm_routes = rk_hdmi_audio_map,
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.num_dapm_routes = ARRAY_SIZE(rk_hdmi_audio_map),
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.controls = rk_hdmi_controls,
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.num_controls = ARRAY_SIZE(rk_hdmi_controls),
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static struct snd_soc_card rockchip_max98090_hdmi_card = {
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.name = "ROCKCHIP-MAX98090-HDMI",
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.owner = THIS_MODULE,
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.dai_link = rk_max98090_hdmi_dailinks,
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.num_links = ARRAY_SIZE(rk_max98090_hdmi_dailinks),
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.aux_dev = &rk_98090_headset_dev,
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.dapm_widgets = rk_max98090_hdmi_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(rk_max98090_hdmi_dapm_widgets),
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.dapm_routes = rk_max98090_hdmi_audio_map,
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.num_dapm_routes = ARRAY_SIZE(rk_max98090_hdmi_audio_map),
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.controls = rk_max98090_hdmi_controls,
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.num_controls = ARRAY_SIZE(rk_max98090_hdmi_controls),
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static int rk_98090_headset_init(struct snd_soc_component *component)
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/* Enable Headset and 4 Buttons Jack detection */
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ret = snd_soc_card_jack_new(component->card, "Headset Jack",
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SND_JACK_BTN_0 | SND_JACK_BTN_1 |
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SND_JACK_BTN_2 | SND_JACK_BTN_3,
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ARRAY_SIZE(headset_jack_pins));
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ret = ts3a227e_enable_jack_detect(component, &headset_jack);
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static int rk_parse_headset_from_of(struct device *dev, struct device_node *np)
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rk_98090_headset_dev.dlc.of_node = of_parse_phandle(
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np, "rockchip,headset-codec", 0);
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if (!rk_98090_headset_dev.dlc.of_node) {
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"Property 'rockchip,headset-codec' missing/invalid\n");
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static int snd_rk_mc_probe(struct platform_device *pdev)
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struct snd_soc_card *card;
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struct device *dev = &pdev->dev;
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struct device_node *np = pdev->dev.of_node;
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struct device_node *np_cpu;
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struct device_node *np_audio, *np_hdmi;
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/* Parse DTS for I2S controller. */
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np_cpu = of_parse_phandle(np, "rockchip,i2s-controller", 0);
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"Property 'rockchip,i2s-controller missing or invalid\n");
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* Find the card to use based on the presences of audio codec
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* and hdmi codec in device property. Set their of_node accordingly.
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np_audio = of_parse_phandle(np, "rockchip,audio-codec", 0);
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np_hdmi = of_parse_phandle(np, "rockchip,hdmi-codec", 0);
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if (np_audio && np_hdmi) {
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card = &rockchip_max98090_hdmi_card;
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card->dai_link[DAILINK_MAX98090].codecs->of_node = np_audio;
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card->dai_link[DAILINK_HDMI].codecs->of_node = np_hdmi;
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card->dai_link[DAILINK_MAX98090].cpus->of_node = np_cpu;
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card->dai_link[DAILINK_MAX98090].platforms->of_node = np_cpu;
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card->dai_link[DAILINK_HDMI].cpus->of_node = np_cpu;
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card->dai_link[DAILINK_HDMI].platforms->of_node = np_cpu;
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} else if (np_audio) {
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card = &rockchip_max98090_card;
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card->dai_link[0].codecs->of_node = np_audio;
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card->dai_link[0].cpus->of_node = np_cpu;
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card->dai_link[0].platforms->of_node = np_cpu;
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} else if (np_hdmi) {
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card = &rockchip_hdmi_card;
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card->dai_link[0].codecs->of_node = np_hdmi;
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card->dai_link[0].cpus->of_node = np_cpu;
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card->dai_link[0].platforms->of_node = np_cpu;
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dev_err(dev, "At least one of codecs should be specified\n");
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/* Parse headset detection codec. */
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ret = rk_parse_headset_from_of(dev, np);
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/* Parse card name. */
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ret = snd_soc_of_parse_card_name(card, "rockchip,model");
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"Soc parse card name failed %d\n", ret);
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/* register the soc card */
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ret = devm_snd_soc_register_card(&pdev->dev, card);
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"Soc register card failed %d\n", ret);
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static const struct of_device_id rockchip_max98090_of_match[] = {
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{ .compatible = "rockchip,rockchip-audio-max98090", },
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MODULE_DEVICE_TABLE(of, rockchip_max98090_of_match);
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static struct platform_driver snd_rk_mc_driver = {
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.probe = snd_rk_mc_probe,
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.pm = &snd_soc_pm_ops,
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.of_match_table = rockchip_max98090_of_match,
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module_platform_driver(snd_rk_mc_driver);
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MODULE_AUTHOR("jianqun <jay.xu@rock-chips.com>");
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MODULE_DESCRIPTION("Rockchip max98090 machine ASoC driver");
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MODULE_LICENSE("GPL v2");
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MODULE_ALIAS("platform:" DRV_NAME);