// SPDX-License-Identifier: GPL-2.0-only
/*
* Intel Kabylake I2S Machine Driver with MAXIM98927
* and RT5663 Codecs
*
* Copyright (C) 2017, Intel Corporation. All rights reserved.
*
* Modified from:
* Intel Skylake I2S Machine driver
*/
#include <linux/input.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <sound/core.h>
#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-acpi.h>
#include "../../codecs/rt5663.h"
#include "../../codecs/hdac_hdmi.h"
#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/clkdev.h>
#define KBL_REALTEK_CODEC_DAI "rt5663-aif"
#define KBL_MAXIM_CODEC_DAI "max98927-aif1"
#define DMIC_CH(p) p->list[p->count-1]
#define MAXIM_DEV0_NAME "i2c-MX98927:00"
#define MAXIM_DEV1_NAME "i2c-MX98927:01"
static struct snd_soc_card *kabylake_audio_card;
static const struct snd_pcm_hw_constraint_list *dmic_constraints;
static struct snd_soc_jack skylake_hdmi[3];
struct kbl_hdmi_pcm {
struct list_head head;
struct snd_soc_dai *codec_dai;
int device;
};
struct kbl_rt5663_private {
struct snd_soc_jack kabylake_headset;
struct list_head hdmi_pcm_list;
struct clk *mclk;
struct clk *sclk;
};
enum {
KBL_DPCM_AUDIO_PB = 0,
KBL_DPCM_AUDIO_CP,
KBL_DPCM_AUDIO_HS_PB,
KBL_DPCM_AUDIO_ECHO_REF_CP,
KBL_DPCM_AUDIO_REF_CP,
KBL_DPCM_AUDIO_DMIC_CP,
KBL_DPCM_AUDIO_HDMI1_PB,
KBL_DPCM_AUDIO_HDMI2_PB,
KBL_DPCM_AUDIO_HDMI3_PB,
};
static const struct snd_kcontrol_new kabylake_controls[] = {
SOC_DAPM_PIN_SWITCH("Headphone Jack"),
SOC_DAPM_PIN_SWITCH("Headset Mic"),
SOC_DAPM_PIN_SWITCH("Left Spk"),
SOC_DAPM_PIN_SWITCH("Right Spk"),
};
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 kbl_rt5663_private *priv = snd_soc_card_get_drvdata(card);
int ret = 0;
/*
* MCLK/SCLK need to be ON early for a successful synchronization of
* codec internal clock. And the clocks are turned off during
* POST_PMD after the stream is stopped.
*/
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
/* Enable MCLK */
ret = clk_set_rate(priv->mclk, 24000000);
if (ret < 0) {
dev_err(card->dev, "Can't set rate for mclk, err: %d\n",
ret);
return ret;
}
ret = clk_prepare_enable(priv->mclk);
if (ret < 0) {
dev_err(card->dev, "Can't enable mclk, err: %d\n", ret);
return ret;
}
/* Enable SCLK */
ret = clk_set_rate(priv->sclk, 3072000);
if (ret < 0) {
dev_err(card->dev, "Can't set rate for sclk, err: %d\n",
ret);
clk_disable_unprepare(priv->mclk);
return ret;
}
ret = clk_prepare_enable(priv->sclk);
if (ret < 0) {
dev_err(card->dev, "Can't enable sclk, err: %d\n", ret);
clk_disable_unprepare(priv->mclk);
}
break;
case SND_SOC_DAPM_POST_PMD:
clk_disable_unprepare(priv->mclk);
clk_disable_unprepare(priv->sclk);
break;
default:
return 0;
}
return 0;
}
static const struct snd_soc_dapm_widget kabylake_widgets[] = {
SND_SOC_DAPM_HP("Headphone Jack", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
SND_SOC_DAPM_SPK("Left Spk", NULL),
SND_SOC_DAPM_SPK("Right Spk", NULL),
SND_SOC_DAPM_MIC("SoC DMIC", NULL),
SND_SOC_DAPM_SPK("HDMI1", NULL),
SND_SOC_DAPM_SPK("HDMI2", NULL),
SND_SOC_DAPM_SPK("HDMI3", 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 kabylake_map[] = {
/* HP jack connectors - unknown if we have jack detection */
{ "Headphone Jack", NULL, "Platform Clock" },
{ "Headphone Jack", NULL, "HPOL" },
{ "Headphone Jack", NULL, "HPOR" },
/* speaker */
{ "Left Spk", NULL, "Left BE_OUT" },
{ "Right Spk", NULL, "Right BE_OUT" },
/* other jacks */