365 lines · c
1// SPDX-License-Identifier: GPL-2.02/*3 * mt8173-rt5650.c -- MT8173 machine driver with RT5650 codecs4 *5 * Copyright (c) 2016 MediaTek Inc.6 * Author: Koro Chen <koro.chen@mediatek.com>7 */8 9#include <linux/module.h>10#include <sound/soc.h>11#include <sound/jack.h>12#include "../../codecs/rt5645.h"13 14#define MCLK_FOR_CODECS 1228800015 16enum mt8173_rt5650_mclk {17 MT8173_RT5650_MCLK_EXTERNAL = 0,18 MT8173_RT5650_MCLK_INTERNAL,19};20 21struct mt8173_rt5650_platform_data {22 enum mt8173_rt5650_mclk pll_from;23 /* 0 = external oscillator; 1 = internal source from mt8173 */24};25 26static struct mt8173_rt5650_platform_data mt8173_rt5650_priv = {27 .pll_from = MT8173_RT5650_MCLK_EXTERNAL,28};29 30static const struct snd_soc_dapm_widget mt8173_rt5650_widgets[] = {31 SND_SOC_DAPM_SPK("Ext Spk", NULL),32 SND_SOC_DAPM_MIC("Int Mic", NULL),33 SND_SOC_DAPM_HP("Headphone", NULL),34 SND_SOC_DAPM_MIC("Headset Mic", NULL),35};36 37static const struct snd_soc_dapm_route mt8173_rt5650_routes[] = {38 {"Ext Spk", NULL, "SPOL"},39 {"Ext Spk", NULL, "SPOR"},40 {"DMIC L1", NULL, "Int Mic"},41 {"DMIC R1", NULL, "Int Mic"},42 {"Headphone", NULL, "HPOL"},43 {"Headphone", NULL, "HPOR"},44 {"IN1P", NULL, "Headset Mic"},45 {"IN1N", NULL, "Headset Mic"},46};47 48static const struct snd_kcontrol_new mt8173_rt5650_controls[] = {49 SOC_DAPM_PIN_SWITCH("Ext Spk"),50 SOC_DAPM_PIN_SWITCH("Int Mic"),51 SOC_DAPM_PIN_SWITCH("Headphone"),52 SOC_DAPM_PIN_SWITCH("Headset Mic"),53};54 55static struct snd_soc_jack_pin mt8173_rt5650_jack_pins[] = {56 {57 .pin = "Headphone",58 .mask = SND_JACK_HEADPHONE,59 },60 {61 .pin = "Headset Mic",62 .mask = SND_JACK_MICROPHONE,63 },64};65 66static int mt8173_rt5650_hw_params(struct snd_pcm_substream *substream,67 struct snd_pcm_hw_params *params)68{69 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);70 unsigned int mclk_clock;71 struct snd_soc_dai *codec_dai;72 int i, ret;73 74 switch (mt8173_rt5650_priv.pll_from) {75 case MT8173_RT5650_MCLK_EXTERNAL:76 /* mclk = 12.288M */77 mclk_clock = MCLK_FOR_CODECS;78 break;79 case MT8173_RT5650_MCLK_INTERNAL:80 /* mclk = sampling rate*256 */81 mclk_clock = params_rate(params) * 256;82 break;83 default:84 /* mclk = 12.288M */85 mclk_clock = MCLK_FOR_CODECS;86 break;87 }88 89 for_each_rtd_codec_dais(rtd, i, codec_dai) {90 /* pll from mclk */91 ret = snd_soc_dai_set_pll(codec_dai, 0, 0, mclk_clock,92 params_rate(params) * 512);93 if (ret)94 return ret;95 96 /* sysclk from pll */97 ret = snd_soc_dai_set_sysclk(codec_dai, 1,98 params_rate(params) * 512,99 SND_SOC_CLOCK_IN);100 if (ret)101 return ret;102 }103 return 0;104}105 106static const struct snd_soc_ops mt8173_rt5650_ops = {107 .hw_params = mt8173_rt5650_hw_params,108};109 110static struct snd_soc_jack mt8173_rt5650_jack, mt8173_rt5650_hdmi_jack;111 112static int mt8173_rt5650_init(struct snd_soc_pcm_runtime *runtime)113{114 struct snd_soc_card *card = runtime->card;115 struct snd_soc_component *component = snd_soc_rtd_to_codec(runtime, 0)->component;116 const char *codec_capture_dai = snd_soc_rtd_to_codec(runtime, 1)->name;117 int ret;118 119 rt5645_sel_asrc_clk_src(component,120 RT5645_DA_STEREO_FILTER,121 RT5645_CLK_SEL_I2S1_ASRC);122 123 if (!strcmp(codec_capture_dai, "rt5645-aif1")) {124 rt5645_sel_asrc_clk_src(component,125 RT5645_AD_STEREO_FILTER,126 RT5645_CLK_SEL_I2S1_ASRC);127 } else if (!strcmp(codec_capture_dai, "rt5645-aif2")) {128 rt5645_sel_asrc_clk_src(component,129 RT5645_AD_STEREO_FILTER,130 RT5645_CLK_SEL_I2S2_ASRC);131 } else {132 dev_warn(card->dev,133 "Only one dai codec found in DTS, enabled rt5645 AD filter\n");134 rt5645_sel_asrc_clk_src(component,135 RT5645_AD_STEREO_FILTER,136 RT5645_CLK_SEL_I2S1_ASRC);137 }138 139 /* enable jack detection */140 ret = snd_soc_card_jack_new_pins(card, "Headset Jack",141 SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |142 SND_JACK_BTN_0 | SND_JACK_BTN_1 |143 SND_JACK_BTN_2 | SND_JACK_BTN_3,144 &mt8173_rt5650_jack,145 mt8173_rt5650_jack_pins,146 ARRAY_SIZE(mt8173_rt5650_jack_pins));147 if (ret) {148 dev_err(card->dev, "Can't new Headset Jack %d\n", ret);149 return ret;150 }151 152 return rt5645_set_jack_detect(component,153 &mt8173_rt5650_jack,154 &mt8173_rt5650_jack,155 &mt8173_rt5650_jack);156}157 158static int mt8173_rt5650_hdmi_init(struct snd_soc_pcm_runtime *rtd)159{160 int ret;161 162 ret = snd_soc_card_jack_new(rtd->card, "HDMI Jack", SND_JACK_LINEOUT,163 &mt8173_rt5650_hdmi_jack);164 if (ret)165 return ret;166 167 return snd_soc_component_set_jack(snd_soc_rtd_to_codec(rtd, 0)->component,168 &mt8173_rt5650_hdmi_jack, NULL);169}170 171enum {172 DAI_LINK_PLAYBACK,173 DAI_LINK_CAPTURE,174 DAI_LINK_HDMI,175 DAI_LINK_CODEC_I2S,176 DAI_LINK_HDMI_I2S,177};178 179SND_SOC_DAILINK_DEFS(playback,180 DAILINK_COMP_ARRAY(COMP_CPU("DL1")),181 DAILINK_COMP_ARRAY(COMP_DUMMY()),182 DAILINK_COMP_ARRAY(COMP_EMPTY()));183 184SND_SOC_DAILINK_DEFS(capture,185 DAILINK_COMP_ARRAY(COMP_CPU("VUL")),186 DAILINK_COMP_ARRAY(COMP_DUMMY()),187 DAILINK_COMP_ARRAY(COMP_EMPTY()));188 189SND_SOC_DAILINK_DEFS(hdmi_pcm,190 DAILINK_COMP_ARRAY(COMP_CPU("HDMI")),191 DAILINK_COMP_ARRAY(COMP_DUMMY()),192 DAILINK_COMP_ARRAY(COMP_EMPTY()));193 194SND_SOC_DAILINK_DEFS(codec,195 DAILINK_COMP_ARRAY(COMP_CPU("I2S")),196 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "rt5645-aif1"), /* Playback */197 COMP_CODEC(NULL, "rt5645-aif1")),/* Capture */198 DAILINK_COMP_ARRAY(COMP_EMPTY()));199 200SND_SOC_DAILINK_DEFS(hdmi_be,201 DAILINK_COMP_ARRAY(COMP_CPU("HDMIO")),202 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "i2s-hifi")),203 DAILINK_COMP_ARRAY(COMP_EMPTY()));204 205/* Digital audio interface glue - connects codec <---> CPU */206static struct snd_soc_dai_link mt8173_rt5650_dais[] = {207 /* Front End DAI links */208 [DAI_LINK_PLAYBACK] = {209 .name = "rt5650 Playback",210 .stream_name = "rt5650 Playback",211 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},212 .dynamic = 1,213 .dpcm_playback = 1,214 SND_SOC_DAILINK_REG(playback),215 },216 [DAI_LINK_CAPTURE] = {217 .name = "rt5650 Capture",218 .stream_name = "rt5650 Capture",219 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},220 .dynamic = 1,221 .dpcm_capture = 1,222 SND_SOC_DAILINK_REG(capture),223 },224 [DAI_LINK_HDMI] = {225 .name = "HDMI",226 .stream_name = "HDMI PCM",227 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},228 .dynamic = 1,229 .dpcm_playback = 1,230 SND_SOC_DAILINK_REG(hdmi_pcm),231 },232 /* Back End DAI links */233 [DAI_LINK_CODEC_I2S] = {234 .name = "Codec",235 .no_pcm = 1,236 .init = mt8173_rt5650_init,237 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |238 SND_SOC_DAIFMT_CBS_CFS,239 .ops = &mt8173_rt5650_ops,240 .ignore_pmdown_time = 1,241 .dpcm_playback = 1,242 .dpcm_capture = 1,243 SND_SOC_DAILINK_REG(codec),244 },245 [DAI_LINK_HDMI_I2S] = {246 .name = "HDMI BE",247 .no_pcm = 1,248 .dpcm_playback = 1,249 .init = mt8173_rt5650_hdmi_init,250 SND_SOC_DAILINK_REG(hdmi_be),251 },252};253 254static struct snd_soc_card mt8173_rt5650_card = {255 .name = "mtk-rt5650",256 .owner = THIS_MODULE,257 .dai_link = mt8173_rt5650_dais,258 .num_links = ARRAY_SIZE(mt8173_rt5650_dais),259 .controls = mt8173_rt5650_controls,260 .num_controls = ARRAY_SIZE(mt8173_rt5650_controls),261 .dapm_widgets = mt8173_rt5650_widgets,262 .num_dapm_widgets = ARRAY_SIZE(mt8173_rt5650_widgets),263 .dapm_routes = mt8173_rt5650_routes,264 .num_dapm_routes = ARRAY_SIZE(mt8173_rt5650_routes),265};266 267static int mt8173_rt5650_dev_probe(struct platform_device *pdev)268{269 struct snd_soc_card *card = &mt8173_rt5650_card;270 struct device_node *platform_node;271 struct device_node *np;272 const char *codec_capture_dai;273 struct snd_soc_dai_link *dai_link;274 int i, ret;275 276 platform_node = of_parse_phandle(pdev->dev.of_node,277 "mediatek,platform", 0);278 if (!platform_node) {279 dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");280 return -EINVAL;281 }282 283 for_each_card_prelinks(card, i, dai_link) {284 if (dai_link->platforms->name)285 continue;286 dai_link->platforms->of_node = platform_node;287 }288 289 mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[0].of_node =290 of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 0);291 if (!mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[0].of_node) {292 dev_err(&pdev->dev,293 "Property 'audio-codec' missing or invalid\n");294 ret = -EINVAL;295 goto put_platform_node;296 }297 mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[1].of_node =298 mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[0].of_node;299 300 np = of_get_child_by_name(pdev->dev.of_node, "codec-capture");301 if (np) {302 ret = snd_soc_of_get_dai_name(np, &codec_capture_dai, 0);303 of_node_put(np);304 if (ret < 0) {305 dev_err(&pdev->dev,306 "%s codec_capture_dai name fail %d\n",307 __func__, ret);308 goto put_platform_node;309 }310 mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[1].dai_name =311 codec_capture_dai;312 }313 314 if (device_property_present(&pdev->dev, "mediatek,mclk")) {315 ret = device_property_read_u32(&pdev->dev,316 "mediatek,mclk",317 &mt8173_rt5650_priv.pll_from);318 if (ret) {319 dev_err(&pdev->dev,320 "%s snd_soc_register_card fail %d\n",321 __func__, ret);322 }323 }324 325 mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codecs->of_node =326 of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 1);327 if (!mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codecs->of_node) {328 dev_err(&pdev->dev,329 "Property 'audio-codec' missing or invalid\n");330 ret = -EINVAL;331 goto put_platform_node;332 }333 card->dev = &pdev->dev;334 335 ret = devm_snd_soc_register_card(&pdev->dev, card);336 337put_platform_node:338 of_node_put(platform_node);339 return ret;340}341 342static const struct of_device_id mt8173_rt5650_dt_match[] = {343 { .compatible = "mediatek,mt8173-rt5650", },344 { }345};346MODULE_DEVICE_TABLE(of, mt8173_rt5650_dt_match);347 348static struct platform_driver mt8173_rt5650_driver = {349 .driver = {350 .name = "mtk-rt5650",351 .of_match_table = mt8173_rt5650_dt_match,352 .pm = &snd_soc_pm_ops,353 },354 .probe = mt8173_rt5650_dev_probe,355};356 357module_platform_driver(mt8173_rt5650_driver);358 359/* Module information */360MODULE_DESCRIPTION("MT8173 RT5650 SoC machine driver");361MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>");362MODULE_LICENSE("GPL v2");363MODULE_ALIAS("platform:mtk-rt5650");364 365