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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * Copyright 2011 Freescale Semiconductor, Inc.4 */5 6#include <linux/module.h>7#include <linux/device.h>8#include <linux/of.h>9#include <sound/core.h>10#include <sound/pcm.h>11#include <sound/soc.h>12#include <sound/jack.h>13#include <sound/soc-dapm.h>14 15#include "../codecs/sgtl5000.h"16#include "mxs-saif.h"17 18static int mxs_sgtl5000_hw_params(struct snd_pcm_substream *substream,19 struct snd_pcm_hw_params *params)20{21 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);22 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);23 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);24 unsigned int rate = params_rate(params);25 u32 mclk;26 int ret;27 28 /* sgtl5000 does not support 512*rate when in 96000 fs */29 switch (rate) {30 case 96000:31 mclk = 256 * rate;32 break;33 default:34 mclk = 512 * rate;35 break;36 }37 38 /* Set SGTL5000's SYSCLK (provided by SAIF MCLK) */39 ret = snd_soc_dai_set_sysclk(codec_dai, SGTL5000_SYSCLK, mclk, 0);40 if (ret) {41 dev_err(codec_dai->dev, "Failed to set sysclk to %u.%03uMHz\n",42 mclk / 1000000, mclk / 1000 % 1000);43 return ret;44 }45 46 /* The SAIF MCLK should be the same as SGTL5000_SYSCLK */47 ret = snd_soc_dai_set_sysclk(cpu_dai, MXS_SAIF_MCLK, mclk, 0);48 if (ret) {49 dev_err(cpu_dai->dev, "Failed to set sysclk to %u.%03uMHz\n",50 mclk / 1000000, mclk / 1000 % 1000);51 return ret;52 }53 54 return 0;55}56 57static const struct snd_soc_ops mxs_sgtl5000_hifi_ops = {58 .hw_params = mxs_sgtl5000_hw_params,59};60 61#define MXS_SGTL5000_DAI_FMT (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | \62 SND_SOC_DAIFMT_CBS_CFS)63 64 65SND_SOC_DAILINK_DEFS(hifi_tx,66 DAILINK_COMP_ARRAY(COMP_EMPTY()),67 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "sgtl5000")),68 DAILINK_COMP_ARRAY(COMP_EMPTY()));69 70SND_SOC_DAILINK_DEFS(hifi_rx,71 DAILINK_COMP_ARRAY(COMP_EMPTY()),72 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "sgtl5000")),73 DAILINK_COMP_ARRAY(COMP_EMPTY()));74 75static struct snd_soc_dai_link mxs_sgtl5000_dai[] = {76 {77 .name = "HiFi Tx",78 .stream_name = "HiFi Playback",79 .dai_fmt = MXS_SGTL5000_DAI_FMT,80 .ops = &mxs_sgtl5000_hifi_ops,81 .playback_only = true,82 SND_SOC_DAILINK_REG(hifi_tx),83 }, {84 .name = "HiFi Rx",85 .stream_name = "HiFi Capture",86 .dai_fmt = MXS_SGTL5000_DAI_FMT,87 .ops = &mxs_sgtl5000_hifi_ops,88 .capture_only = true,89 SND_SOC_DAILINK_REG(hifi_rx),90 },91};92 93static const struct snd_soc_dapm_widget mxs_sgtl5000_dapm_widgets[] = {94 SND_SOC_DAPM_MIC("Mic Jack", NULL),95 SND_SOC_DAPM_LINE("Line In Jack", NULL),96 SND_SOC_DAPM_HP("Headphone Jack", NULL),97 SND_SOC_DAPM_SPK("Line Out Jack", NULL),98 SND_SOC_DAPM_SPK("Ext Spk", NULL),99};100 101static struct snd_soc_card mxs_sgtl5000 = {102 .name = "mxs_sgtl5000",103 .owner = THIS_MODULE,104 .dai_link = mxs_sgtl5000_dai,105 .num_links = ARRAY_SIZE(mxs_sgtl5000_dai),106};107 108static int mxs_sgtl5000_probe(struct platform_device *pdev)109{110 struct snd_soc_card *card = &mxs_sgtl5000;111 int ret, i;112 struct device_node *np = pdev->dev.of_node;113 struct device_node *saif_np[2], *codec_np;114 115 saif_np[0] = of_parse_phandle(np, "saif-controllers", 0);116 saif_np[1] = of_parse_phandle(np, "saif-controllers", 1);117 codec_np = of_parse_phandle(np, "audio-codec", 0);118 if (!saif_np[0] || !saif_np[1] || !codec_np) {119 dev_err(&pdev->dev, "phandle missing or invalid\n");120 of_node_put(codec_np);121 of_node_put(saif_np[0]);122 of_node_put(saif_np[1]);123 return -EINVAL;124 }125 126 for (i = 0; i < 2; i++) {127 mxs_sgtl5000_dai[i].codecs->name = NULL;128 mxs_sgtl5000_dai[i].codecs->of_node = codec_np;129 mxs_sgtl5000_dai[i].cpus->dai_name = NULL;130 mxs_sgtl5000_dai[i].cpus->of_node = saif_np[i];131 mxs_sgtl5000_dai[i].platforms->name = NULL;132 mxs_sgtl5000_dai[i].platforms->of_node = saif_np[i];133 }134 135 of_node_put(codec_np);136 of_node_put(saif_np[0]);137 of_node_put(saif_np[1]);138 139 /*140 * Set an init clock(11.28Mhz) for sgtl5000 initialization(i2c r/w).141 * The Sgtl5000 sysclk is derived from saif0 mclk and it's range142 * should be >= 8MHz and <= 27M.143 */144 ret = mxs_saif_get_mclk(0, 44100 * 256, 44100);145 if (ret) {146 dev_err(&pdev->dev, "failed to get mclk\n");147 return ret;148 }149 150 card->dev = &pdev->dev;151 152 if (of_property_present(np, "audio-routing")) {153 card->dapm_widgets = mxs_sgtl5000_dapm_widgets;154 card->num_dapm_widgets = ARRAY_SIZE(mxs_sgtl5000_dapm_widgets);155 156 ret = snd_soc_of_parse_audio_routing(card, "audio-routing");157 if (ret) {158 dev_err(&pdev->dev, "failed to parse audio-routing (%d)\n",159 ret);160 return ret;161 }162 }163 164 ret = devm_snd_soc_register_card(&pdev->dev, card);165 if (ret)166 return dev_err_probe(&pdev->dev, ret, "snd_soc_register_card failed\n");167 168 return 0;169}170 171static void mxs_sgtl5000_remove(struct platform_device *pdev)172{173 mxs_saif_put_mclk(0);174}175 176static const struct of_device_id mxs_sgtl5000_dt_ids[] = {177 { .compatible = "fsl,mxs-audio-sgtl5000", },178 { /* sentinel */ }179};180MODULE_DEVICE_TABLE(of, mxs_sgtl5000_dt_ids);181 182static struct platform_driver mxs_sgtl5000_audio_driver = {183 .driver = {184 .name = "mxs-sgtl5000",185 .of_match_table = mxs_sgtl5000_dt_ids,186 },187 .probe = mxs_sgtl5000_probe,188 .remove = mxs_sgtl5000_remove,189};190 191module_platform_driver(mxs_sgtl5000_audio_driver);192 193MODULE_AUTHOR("Freescale Semiconductor, Inc.");194MODULE_DESCRIPTION("MXS ALSA SoC Machine driver");195MODULE_LICENSE("GPL");196MODULE_ALIAS("platform:mxs-sgtl5000");197