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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * Rockchip machine ASoC driver for RK3288 boards that have an HDMI and analog4 * audio output5 *6 * Copyright (c) 2016, Collabora Ltd.7 *8 * Authors: Sjoerd Simons <sjoerd.simons@collabora.com>,9 * Romain Perier <romain.perier@collabora.com>10 */11 12#include <linux/module.h>13#include <linux/platform_device.h>14#include <linux/slab.h>15#include <linux/gpio/consumer.h>16#include <sound/core.h>17#include <sound/jack.h>18#include <sound/pcm.h>19#include <sound/pcm_params.h>20#include <sound/soc.h>21#include <sound/soc-dapm.h>22 23#include "rockchip_i2s.h"24 25#define DRV_NAME "rk3288-snd-hdmi-analog"26 27struct rk_drvdata {28 struct gpio_desc *gpio_hp_en;29};30 31static int rk_hp_power(struct snd_soc_dapm_widget *w,32 struct snd_kcontrol *k, int event)33{34 struct rk_drvdata *machine = snd_soc_card_get_drvdata(w->dapm->card);35 36 gpiod_set_value_cansleep(machine->gpio_hp_en,37 SND_SOC_DAPM_EVENT_ON(event));38 39 return 0;40}41 42static struct snd_soc_jack headphone_jack;43static struct snd_soc_jack_pin headphone_jack_pins[] = {44 {45 .pin = "Analog",46 .mask = SND_JACK_HEADPHONE47 },48};49 50static const struct snd_soc_dapm_widget rk_dapm_widgets[] = {51 SND_SOC_DAPM_HP("Analog", rk_hp_power),52 SND_SOC_DAPM_LINE("HDMI", NULL),53};54 55static const struct snd_kcontrol_new rk_mc_controls[] = {56 SOC_DAPM_PIN_SWITCH("Analog"),57 SOC_DAPM_PIN_SWITCH("HDMI"),58};59 60static int rk_hw_params(struct snd_pcm_substream *substream,61 struct snd_pcm_hw_params *params)62{63 int ret = 0;64 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);65 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);66 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);67 int mclk;68 69 switch (params_rate(params)) {70 case 8000:71 case 16000:72 case 24000:73 case 32000:74 case 48000:75 case 64000:76 case 96000:77 mclk = 12288000;78 break;79 case 192000:80 mclk = 24576000;81 break;82 case 11025:83 case 22050:84 case 44100:85 case 88200:86 mclk = 11289600;87 break;88 default:89 return -EINVAL;90 }91 92 ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,93 SND_SOC_CLOCK_OUT);94 95 if (ret && ret != -ENOTSUPP) {96 dev_err(codec_dai->dev, "Can't set cpu clock %d\n", ret);97 return ret;98 }99 100 ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,101 SND_SOC_CLOCK_IN);102 if (ret && ret != -ENOTSUPP) {103 dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);104 return ret;105 }106 107 return 0;108}109 110static struct snd_soc_jack_gpio rk_hp_jack_gpio = {111 .name = "rockchip,hp-det",112 .report = SND_JACK_HEADPHONE,113 .debounce_time = 150114};115 116static int rk_init(struct snd_soc_pcm_runtime *runtime)117{118 struct snd_soc_card *card = runtime->card;119 struct device *dev = card->dev;120 121 /* Enable optional Headset Jack detection */122 if (of_property_present(dev->of_node, "rockchip,hp-det-gpios")) {123 rk_hp_jack_gpio.gpiod_dev = dev;124 snd_soc_card_jack_new_pins(runtime->card, "Headphone Jack",125 SND_JACK_HEADPHONE, &headphone_jack,126 headphone_jack_pins,127 ARRAY_SIZE(headphone_jack_pins));128 snd_soc_jack_add_gpios(&headphone_jack, 1, &rk_hp_jack_gpio);129 }130 131 return 0;132}133 134static const struct snd_soc_ops rk_ops = {135 .hw_params = rk_hw_params,136};137 138SND_SOC_DAILINK_DEFS(audio,139 DAILINK_COMP_ARRAY(COMP_EMPTY()),140 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, NULL),141 COMP_CODEC("hdmi-audio-codec.2.auto", "i2s-hifi")),142 DAILINK_COMP_ARRAY(COMP_EMPTY()));143 144static struct snd_soc_dai_link rk_dailink = {145 .name = "Codecs",146 .stream_name = "Audio",147 .init = rk_init,148 .ops = &rk_ops,149 /* Set codecs as slave */150 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |151 SND_SOC_DAIFMT_CBS_CFS,152 SND_SOC_DAILINK_REG(audio),153};154 155static struct snd_soc_card snd_soc_card_rk = {156 .name = "ROCKCHIP-I2S",157 .dai_link = &rk_dailink,158 .num_links = 1,159 .num_aux_devs = 0,160 .dapm_widgets = rk_dapm_widgets,161 .num_dapm_widgets = ARRAY_SIZE(rk_dapm_widgets),162 .controls = rk_mc_controls,163 .num_controls = ARRAY_SIZE(rk_mc_controls),164};165 166static int snd_rk_mc_probe(struct platform_device *pdev)167{168 int ret;169 struct snd_soc_card *card = &snd_soc_card_rk;170 struct device_node *np = pdev->dev.of_node;171 struct rk_drvdata *machine;172 struct of_phandle_args args;173 174 machine = devm_kzalloc(&pdev->dev, sizeof(struct rk_drvdata),175 GFP_KERNEL);176 if (!machine)177 return -ENOMEM;178 179 card->dev = &pdev->dev;180 181 machine->gpio_hp_en = devm_gpiod_get_optional(&pdev->dev, "rockchip,hp-en", GPIOD_OUT_LOW);182 if (IS_ERR(machine->gpio_hp_en))183 return PTR_ERR(machine->gpio_hp_en);184 gpiod_set_consumer_name(machine->gpio_hp_en, "hp_en");185 186 ret = snd_soc_of_parse_card_name(card, "rockchip,model");187 if (ret) {188 dev_err(card->dev, "SoC parse card name failed %d\n", ret);189 return ret;190 }191 192 rk_dailink.codecs[0].of_node = of_parse_phandle(np,193 "rockchip,audio-codec",194 0);195 if (!rk_dailink.codecs[0].of_node) {196 dev_err(&pdev->dev,197 "Property 'rockchip,audio-codec' missing or invalid\n");198 return -EINVAL;199 }200 ret = of_parse_phandle_with_fixed_args(np, "rockchip,audio-codec",201 0, 0, &args);202 if (ret) {203 dev_err(&pdev->dev,204 "Unable to parse property 'rockchip,audio-codec'\n");205 return ret;206 }207 208 ret = snd_soc_get_dai_name(&args, &rk_dailink.codecs[0].dai_name);209 if (ret) {210 dev_err(&pdev->dev, "Unable to get codec_dai_name\n");211 return ret;212 }213 214 rk_dailink.cpus->of_node = of_parse_phandle(np, "rockchip,i2s-controller",215 0);216 if (!rk_dailink.cpus->of_node) {217 dev_err(&pdev->dev,218 "Property 'rockchip,i2s-controller' missing or invalid\n");219 return -EINVAL;220 }221 222 rk_dailink.platforms->of_node = rk_dailink.cpus->of_node;223 224 ret = snd_soc_of_parse_audio_routing(card, "rockchip,routing");225 if (ret) {226 dev_err(&pdev->dev,227 "Unable to parse 'rockchip,routing' property\n");228 return ret;229 }230 231 snd_soc_card_set_drvdata(card, machine);232 233 ret = devm_snd_soc_register_card(&pdev->dev, card);234 if (ret)235 return dev_err_probe(&pdev->dev, ret,236 "Soc register card failed\n");237 238 return 0;239}240 241static const struct of_device_id rockchip_sound_of_match[] = {242 { .compatible = "rockchip,rk3288-hdmi-analog", },243 {},244};245 246MODULE_DEVICE_TABLE(of, rockchip_sound_of_match);247 248static struct platform_driver rockchip_sound_driver = {249 .probe = snd_rk_mc_probe,250 .driver = {251 .name = DRV_NAME,252 .pm = &snd_soc_pm_ops,253 .of_match_table = rockchip_sound_of_match,254 },255};256 257module_platform_driver(rockchip_sound_driver);258 259MODULE_AUTHOR("Sjoerd Simons <sjoerd.simons@collabora.com>");260MODULE_DESCRIPTION("Rockchip RK3288 machine ASoC driver");261MODULE_LICENSE("GPL v2");262MODULE_ALIAS("platform:" DRV_NAME);263