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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 | // SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright 2011 Freescale Semiconductor, Inc. */ #include <linux/module.h> #include <linux/device.h> #include <linux/of.h> #include <linux/of_device.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/soc.h> #include <sound/jack.h> #include <sound/soc-dapm.h> #include "../codecs/sgtl5000.h" #include "mxs-saif.h" static int mxs_sgtl5000_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); unsigned int rate = params_rate(params); u32 mclk; int ret; /* sgtl5000 does not support 512*rate when in 96000 fs */ switch (rate) { case 96000: mclk = 256 * rate; break; default: mclk = 512 * rate; break; } /* Set SGTL5000's SYSCLK (provided by SAIF MCLK) */ ret = snd_soc_dai_set_sysclk(codec_dai, SGTL5000_SYSCLK, mclk, 0); if (ret) { dev_err(codec_dai->dev, "Failed to set sysclk to %u.%03uMHz\n", mclk / 1000000, mclk / 1000 % 1000); return ret; } /* The SAIF MCLK should be the same as SGTL5000_SYSCLK */ ret = snd_soc_dai_set_sysclk(cpu_dai, MXS_SAIF_MCLK, mclk, 0); if (ret) { dev_err(cpu_dai->dev, "Failed to set sysclk to %u.%03uMHz\n", mclk / 1000000, mclk / 1000 % 1000); return ret; } return 0; } static const struct snd_soc_ops mxs_sgtl5000_hifi_ops = { .hw_params = mxs_sgtl5000_hw_params, }; #define MXS_SGTL5000_DAI_FMT (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | \ SND_SOC_DAIFMT_CBS_CFS) SND_SOC_DAILINK_DEFS(hifi_tx, DAILINK_COMP_ARRAY(COMP_EMPTY()), DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "sgtl5000")), DAILINK_COMP_ARRAY(COMP_EMPTY())); SND_SOC_DAILINK_DEFS(hifi_rx, DAILINK_COMP_ARRAY(COMP_EMPTY()), DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "sgtl5000")), DAILINK_COMP_ARRAY(COMP_EMPTY())); static struct snd_soc_dai_link mxs_sgtl5000_dai[] = { { .name = "HiFi Tx", .stream_name = "HiFi Playback", .dai_fmt = MXS_SGTL5000_DAI_FMT, .ops = &mxs_sgtl5000_hifi_ops, .playback_only = true, SND_SOC_DAILINK_REG(hifi_tx), }, { .name = "HiFi Rx", .stream_name = "HiFi Capture", .dai_fmt = MXS_SGTL5000_DAI_FMT, .ops = &mxs_sgtl5000_hifi_ops, .capture_only = true, SND_SOC_DAILINK_REG(hifi_rx), }, }; static const struct snd_soc_dapm_widget mxs_sgtl5000_dapm_widgets[] = { SND_SOC_DAPM_MIC("Mic Jack", NULL), SND_SOC_DAPM_LINE("Line In Jack", NULL), SND_SOC_DAPM_HP("Headphone Jack", NULL), SND_SOC_DAPM_SPK("Line Out Jack", NULL), SND_SOC_DAPM_SPK("Ext Spk", NULL), }; static struct snd_soc_card mxs_sgtl5000 = { .name = "mxs_sgtl5000", .owner = THIS_MODULE, .dai_link = mxs_sgtl5000_dai, .num_links = ARRAY_SIZE(mxs_sgtl5000_dai), }; static int mxs_sgtl5000_probe(struct platform_device *pdev) { struct snd_soc_card *card = &mxs_sgtl5000; int ret, i; struct device_node *np = pdev->dev.of_node; struct device_node *saif_np[2], *codec_np; saif_np[0] = of_parse_phandle(np, "saif-controllers", 0); saif_np[1] = of_parse_phandle(np, "saif-controllers", 1); codec_np = of_parse_phandle(np, "audio-codec", 0); if (!saif_np[0] || !saif_np[1] || !codec_np) { dev_err(&pdev->dev, "phandle missing or invalid\n"); of_node_put(codec_np); of_node_put(saif_np[0]); of_node_put(saif_np[1]); return -EINVAL; } for (i = 0; i < 2; i++) { mxs_sgtl5000_dai[i].codecs->name = NULL; mxs_sgtl5000_dai[i].codecs->of_node = codec_np; mxs_sgtl5000_dai[i].cpus->dai_name = NULL; mxs_sgtl5000_dai[i].cpus->of_node = saif_np[i]; mxs_sgtl5000_dai[i].platforms->name = NULL; mxs_sgtl5000_dai[i].platforms->of_node = saif_np[i]; } of_node_put(codec_np); of_node_put(saif_np[0]); of_node_put(saif_np[1]); /* * Set an init clock(11.28Mhz) for sgtl5000 initialization(i2c r/w). * The Sgtl5000 sysclk is derived from saif0 mclk and it's range * should be >= 8MHz and <= 27M. */ ret = mxs_saif_get_mclk(0, 44100 * 256, 44100); if (ret) { dev_err(&pdev->dev, "failed to get mclk\n"); return ret; } card->dev = &pdev->dev; if (of_property_present(np, "audio-routing")) { card->dapm_widgets = mxs_sgtl5000_dapm_widgets; card->num_dapm_widgets = ARRAY_SIZE(mxs_sgtl5000_dapm_widgets); ret = snd_soc_of_parse_audio_routing(card, "audio-routing"); if (ret) { dev_err(&pdev->dev, "failed to parse audio-routing (%d)\n", ret); return ret; } } ret = devm_snd_soc_register_card(&pdev->dev, card); if (ret) return dev_err_probe(&pdev->dev, ret, "snd_soc_register_card failed\n"); return 0; } static void mxs_sgtl5000_remove(struct platform_device *pdev) { mxs_saif_put_mclk(0); } static const struct of_device_id mxs_sgtl5000_dt_ids[] = { { .compatible = "fsl,mxs-audio-sgtl5000", }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, mxs_sgtl5000_dt_ids); static struct platform_driver mxs_sgtl5000_audio_driver = { .driver = { .name = "mxs-sgtl5000", .of_match_table = mxs_sgtl5000_dt_ids, }, .probe = mxs_sgtl5000_probe, .remove_new = mxs_sgtl5000_remove, }; module_platform_driver(mxs_sgtl5000_audio_driver); MODULE_AUTHOR("Freescale Semiconductor, Inc."); MODULE_DESCRIPTION("MXS ALSA SoC Machine driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:mxs-sgtl5000"); |