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// SPDX-License-Identifier: GPL-2.0
/*
* mt8173-rt5650.c -- MT8173 machine driver with RT5650 codecs
*
* Copyright (c) 2016 MediaTek Inc.
* Author: Koro Chen <koro.chen@mediatek.com>
*/
#include <linux/module.h>
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <sound/soc.h>
#include <sound/jack.h>
#include "../../codecs/rt5645.h"
#define MCLK_FOR_CODECS 12288000
enum mt8173_rt5650_mclk {
MT8173_RT5650_MCLK_EXTERNAL = 0,
MT8173_RT5650_MCLK_INTERNAL,
};
struct mt8173_rt5650_platform_data {
enum mt8173_rt5650_mclk pll_from;
/* 0 = external oscillator; 1 = internal source from mt8173 */
};
static struct mt8173_rt5650_platform_data mt8173_rt5650_priv = {
.pll_from = MT8173_RT5650_MCLK_EXTERNAL,
};
static const struct snd_soc_dapm_widget mt8173_rt5650_widgets[] = {
SND_SOC_DAPM_SPK("Speaker", NULL),
SND_SOC_DAPM_MIC("Int Mic", NULL),
SND_SOC_DAPM_HP("Headphone", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
};
static const struct snd_soc_dapm_route mt8173_rt5650_routes[] = {
{"Speaker", NULL, "SPOL"},
{"Speaker", NULL, "SPOR"},
{"DMIC L1", NULL, "Int Mic"},
{"DMIC R1", NULL, "Int Mic"},
{"Headphone", NULL, "HPOL"},
{"Headphone", NULL, "HPOR"},
{"IN1P", NULL, "Headset Mic"},
{"IN1N", NULL, "Headset Mic"},
};
static const struct snd_kcontrol_new mt8173_rt5650_controls[] = {
SOC_DAPM_PIN_SWITCH("Speaker"),
SOC_DAPM_PIN_SWITCH("Int Mic"),
SOC_DAPM_PIN_SWITCH("Headphone"),
SOC_DAPM_PIN_SWITCH("Headset Mic"),
};
static int mt8173_rt5650_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
unsigned int mclk_clock;
int i, ret;
switch (mt8173_rt5650_priv.pll_from) {
case MT8173_RT5650_MCLK_EXTERNAL:
/* mclk = 12.288M */
mclk_clock = MCLK_FOR_CODECS;
break;
case MT8173_RT5650_MCLK_INTERNAL:
/* mclk = sampling rate*256 */
mclk_clock = params_rate(params) * 256;
break;
default:
/* mclk = 12.288M */
mclk_clock = MCLK_FOR_CODECS;
break;
}
for (i = 0; i < rtd->num_codecs; i++) {
struct snd_soc_dai *codec_dai = rtd->codec_dais[i];
/* pll from mclk */
ret = snd_soc_dai_set_pll(codec_dai, 0, 0, mclk_clock,
params_rate(params) * 512);
if (ret)
return ret;
/* sysclk from pll */
ret = snd_soc_dai_set_sysclk(codec_dai, 1,
params_rate(params) * 512,
SND_SOC_CLOCK_IN);
if (ret)
return ret;
}
return 0;
}
static const struct snd_soc_ops mt8173_rt5650_ops = {
.hw_params = mt8173_rt5650_hw_params,
};
static struct snd_soc_jack mt8173_rt5650_jack;
static int mt8173_rt5650_init(struct snd_soc_pcm_runtime *runtime)
{
struct snd_soc_card *card = runtime->card;
struct snd_soc_component *component = runtime->codec_dais[0]->component;
const char *codec_capture_dai = runtime->codec_dais[1]->name;
int ret;
rt5645_sel_asrc_clk_src(component,
RT5645_DA_STEREO_FILTER,
RT5645_CLK_SEL_I2S1_ASRC);
if (!strcmp(codec_capture_dai, "rt5645-aif1")) {
rt5645_sel_asrc_clk_src(component,
RT5645_AD_STEREO_FILTER,
RT5645_CLK_SEL_I2S1_ASRC);
} else if (!strcmp(codec_capture_dai, "rt5645-aif2")) {
rt5645_sel_asrc_clk_src(component,
RT5645_AD_STEREO_FILTER,
RT5645_CLK_SEL_I2S2_ASRC);
} else {
dev_warn(card->dev,
"Only one dai codec found in DTS, enabled rt5645 AD filter\n");
rt5645_sel_asrc_clk_src(component,
RT5645_AD_STEREO_FILTER,
RT5645_CLK_SEL_I2S1_ASRC);
}
/* enable jack detection */
ret = snd_soc_card_jack_new(card, "Headset Jack",
SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
SND_JACK_BTN_0 | SND_JACK_BTN_1 |
SND_JACK_BTN_2 | SND_JACK_BTN_3,
&mt8173_rt5650_jack, NULL, 0);
if (ret) {
dev_err(card->dev, "Can't new Headset Jack %d\n", ret);
return ret;
}
return rt5645_set_jack_detect(component,
&mt8173_rt5650_jack,
&mt8173_rt5650_jack,
&mt8173_rt5650_jack);
}
static struct snd_soc_dai_link_component mt8173_rt5650_codecs[] = {
{
/* Playback */
.dai_name = "rt5645-aif1",
},
{
/* Capture */
.dai_name = "rt5645-aif1",
},
};
enum {
DAI_LINK_PLAYBACK,
DAI_LINK_CAPTURE,
DAI_LINK_HDMI,
DAI_LINK_CODEC_I2S,
DAI_LINK_HDMI_I2S,
};
/* Digital audio interface glue - connects codec <---> CPU */
static struct snd_soc_dai_link mt8173_rt5650_dais[] = {
/* Front End DAI links */
[DAI_LINK_PLAYBACK] = {
.name = "rt5650 Playback",
.stream_name = "rt5650 Playback",
.cpu_dai_name = "DL1",
.codec_name = "snd-soc-dummy",
.codec_dai_name = "snd-soc-dummy-dai",
.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
.dynamic = 1,
.dpcm_playback = 1,
},
[DAI_LINK_CAPTURE] = {
.name = "rt5650 Capture",
.stream_name = "rt5650 Capture",
.cpu_dai_name = "VUL",
.codec_name = "snd-soc-dummy",
.codec_dai_name = "snd-soc-dummy-dai",
.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
.dynamic = 1,
.dpcm_capture = 1,
},
[DAI_LINK_HDMI] = {
.name = "HDMI",
.stream_name = "HDMI PCM",
.cpu_dai_name = "HDMI",
.codec_name = "snd-soc-dummy",
.codec_dai_name = "snd-soc-dummy-dai",
.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
.dynamic = 1,
.dpcm_playback = 1,
},
/* Back End DAI links */
[DAI_LINK_CODEC_I2S] = {
.name = "Codec",
.cpu_dai_name = "I2S",
.no_pcm = 1,
.codecs = mt8173_rt5650_codecs,
.num_codecs = 2,
.init = mt8173_rt5650_init,
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS,
.ops = &mt8173_rt5650_ops,
.ignore_pmdown_time = 1,
.dpcm_playback = 1,
.dpcm_capture = 1,
},
[DAI_LINK_HDMI_I2S] = {
.name = "HDMI BE",
.cpu_dai_name = "HDMIO",
.no_pcm = 1,
.codec_dai_name = "i2s-hifi",
.dpcm_playback = 1,
},
};
static struct snd_soc_card mt8173_rt5650_card = {
.name = "mtk-rt5650",
.owner = THIS_MODULE,
.dai_link = mt8173_rt5650_dais,
.num_links = ARRAY_SIZE(mt8173_rt5650_dais),
.controls = mt8173_rt5650_controls,
.num_controls = ARRAY_SIZE(mt8173_rt5650_controls),
.dapm_widgets = mt8173_rt5650_widgets,
.num_dapm_widgets = ARRAY_SIZE(mt8173_rt5650_widgets),
.dapm_routes = mt8173_rt5650_routes,
.num_dapm_routes = ARRAY_SIZE(mt8173_rt5650_routes),
};
static int mt8173_rt5650_dev_probe(struct platform_device *pdev)
{
struct snd_soc_card *card = &mt8173_rt5650_card;
struct device_node *platform_node;
struct device_node *np;
const char *codec_capture_dai;
int i, ret;
platform_node = of_parse_phandle(pdev->dev.of_node,
"mediatek,platform", 0);
if (!platform_node) {
dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
return -EINVAL;
}
for (i = 0; i < card->num_links; i++) {
if (mt8173_rt5650_dais[i].platform_name)
continue;
mt8173_rt5650_dais[i].platform_of_node = platform_node;
}
mt8173_rt5650_codecs[0].of_node =
of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 0);
if (!mt8173_rt5650_codecs[0].of_node) {
dev_err(&pdev->dev,
"Property 'audio-codec' missing or invalid\n");
return -EINVAL;
}
mt8173_rt5650_codecs[1].of_node = mt8173_rt5650_codecs[0].of_node;
np = of_get_child_by_name(pdev->dev.of_node, "codec-capture");
if (np) {
ret = snd_soc_of_get_dai_name(np, &codec_capture_dai);
of_node_put(np);
if (ret < 0) {
dev_err(&pdev->dev,
"%s codec_capture_dai name fail %d\n",
__func__, ret);
return ret;
}
mt8173_rt5650_codecs[1].dai_name = codec_capture_dai;
}
if (device_property_present(&pdev->dev, "mediatek,mclk")) {
ret = device_property_read_u32(&pdev->dev,
"mediatek,mclk",
&mt8173_rt5650_priv.pll_from);
if (ret) {
dev_err(&pdev->dev,
"%s snd_soc_register_card fail %d\n",
__func__, ret);
}
}
mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codec_of_node =
of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 1);
if (!mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codec_of_node) {
dev_err(&pdev->dev,
"Property 'audio-codec' missing or invalid\n");
return -EINVAL;
}
card->dev = &pdev->dev;
ret = devm_snd_soc_register_card(&pdev->dev, card);
if (ret)
dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
__func__, ret);
of_node_put(platform_node);
return ret;
}
static const struct of_device_id mt8173_rt5650_dt_match[] = {
{ .compatible = "mediatek,mt8173-rt5650", },
{ }
};
MODULE_DEVICE_TABLE(of, mt8173_rt5650_dt_match);
static struct platform_driver mt8173_rt5650_driver = {
.driver = {
.name = "mtk-rt5650",
.of_match_table = mt8173_rt5650_dt_match,
#ifdef CONFIG_PM
.pm = &snd_soc_pm_ops,
#endif
},
.probe = mt8173_rt5650_dev_probe,
};
module_platform_driver(mt8173_rt5650_driver);
/* Module information */
MODULE_DESCRIPTION("MT8173 RT5650 SoC machine driver");
MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:mtk-rt5650");
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