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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 | // SPDX-License-Identifier: GPL-2.0+ #include "../codecs/wm8994.h" #include <sound/pcm_params.h> #include <sound/soc.h> #include <linux/module.h> #include <linux/of.h> #include <linux/of_device.h> /* * Default CFG switch settings to use this driver: * SMDKV310: CFG5-1000, CFG7-111111 */ /* * Configure audio route as :- * $ amixer sset 'DAC1' on,on * $ amixer sset 'Right Headphone Mux' 'DAC' * $ amixer sset 'Left Headphone Mux' 'DAC' * $ amixer sset 'DAC1R Mixer AIF1.1' on * $ amixer sset 'DAC1L Mixer AIF1.1' on * $ amixer sset 'IN2L' on * $ amixer sset 'IN2L PGA IN2LN' on * $ amixer sset 'MIXINL IN2L' on * $ amixer sset 'AIF1ADC1L Mixer ADC/DMIC' on * $ amixer sset 'IN2R' on * $ amixer sset 'IN2R PGA IN2RN' on * $ amixer sset 'MIXINR IN2R' on * $ amixer sset 'AIF1ADC1R Mixer ADC/DMIC' on */ /* SMDK has a 16.934MHZ crystal attached to WM8994 */ #define SMDK_WM8994_FREQ 16934000 struct smdk_wm8994_data { int mclk1_rate; }; /* Default SMDKs */ static struct smdk_wm8994_data smdk_board_data = { .mclk1_rate = SMDK_WM8994_FREQ, }; static int smdk_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); unsigned int pll_out; int ret; /* AIF1CLK should be >=3MHz for optimal performance */ if (params_width(params) == 24) pll_out = params_rate(params) * 384; else if (params_rate(params) == 8000 || params_rate(params) == 11025) pll_out = params_rate(params) * 512; else pll_out = params_rate(params) * 256; ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL1, WM8994_FLL_SRC_MCLK1, SMDK_WM8994_FREQ, pll_out); if (ret < 0) return ret; ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_FLL1, pll_out, SND_SOC_CLOCK_IN); if (ret < 0) return ret; return 0; } /* * SMDK WM8994 DAI operations. */ static const struct snd_soc_ops smdk_ops = { .hw_params = smdk_hw_params, }; static int smdk_wm8994_init_paiftx(struct snd_soc_pcm_runtime *rtd) { struct snd_soc_dapm_context *dapm = &rtd->card->dapm; /* Other pins NC */ snd_soc_dapm_nc_pin(dapm, "HPOUT2P"); snd_soc_dapm_nc_pin(dapm, "HPOUT2N"); snd_soc_dapm_nc_pin(dapm, "SPKOUTLN"); snd_soc_dapm_nc_pin(dapm, "SPKOUTLP"); snd_soc_dapm_nc_pin(dapm, "SPKOUTRP"); snd_soc_dapm_nc_pin(dapm, "SPKOUTRN"); snd_soc_dapm_nc_pin(dapm, "LINEOUT1N"); snd_soc_dapm_nc_pin(dapm, "LINEOUT1P"); snd_soc_dapm_nc_pin(dapm, "LINEOUT2N"); snd_soc_dapm_nc_pin(dapm, "LINEOUT2P"); snd_soc_dapm_nc_pin(dapm, "IN1LP"); snd_soc_dapm_nc_pin(dapm, "IN2LP:VXRN"); snd_soc_dapm_nc_pin(dapm, "IN1RP"); snd_soc_dapm_nc_pin(dapm, "IN2RP:VXRP"); return 0; } SND_SOC_DAILINK_DEFS(aif1, DAILINK_COMP_ARRAY(COMP_CPU("samsung-i2s.0")), DAILINK_COMP_ARRAY(COMP_CODEC("wm8994-codec", "wm8994-aif1")), DAILINK_COMP_ARRAY(COMP_PLATFORM("samsung-i2s.0"))); SND_SOC_DAILINK_DEFS(fifo_tx, DAILINK_COMP_ARRAY(COMP_CPU("samsung-i2s-sec")), DAILINK_COMP_ARRAY(COMP_CODEC("wm8994-codec", "wm8994-aif1")), DAILINK_COMP_ARRAY(COMP_PLATFORM("samsung-i2s-sec"))); static struct snd_soc_dai_link smdk_dai[] = { { /* Primary DAI i/f */ .name = "WM8994 AIF1", .stream_name = "Pri_Dai", .init = smdk_wm8994_init_paiftx, .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM, .ops = &smdk_ops, SND_SOC_DAILINK_REG(aif1), }, { /* Sec_Fifo Playback i/f */ .name = "Sec_FIFO TX", .stream_name = "Sec_Dai", .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM, .ops = &smdk_ops, SND_SOC_DAILINK_REG(fifo_tx), }, }; static struct snd_soc_card smdk = { .name = "SMDK-I2S", .owner = THIS_MODULE, .dai_link = smdk_dai, .num_links = ARRAY_SIZE(smdk_dai), }; static const struct of_device_id samsung_wm8994_of_match[] __maybe_unused = { { .compatible = "samsung,smdk-wm8994", .data = &smdk_board_data }, {}, }; MODULE_DEVICE_TABLE(of, samsung_wm8994_of_match); static int smdk_audio_probe(struct platform_device *pdev) { int ret; struct device_node *np = pdev->dev.of_node; struct snd_soc_card *card = &smdk; struct smdk_wm8994_data *board; const struct of_device_id *id; card->dev = &pdev->dev; board = devm_kzalloc(&pdev->dev, sizeof(*board), GFP_KERNEL); if (!board) return -ENOMEM; if (np) { smdk_dai[0].cpus->dai_name = NULL; smdk_dai[0].cpus->of_node = of_parse_phandle(np, "samsung,i2s-controller", 0); if (!smdk_dai[0].cpus->of_node) { dev_err(&pdev->dev, "Property 'samsung,i2s-controller' missing or invalid\n"); ret = -EINVAL; return ret; } smdk_dai[0].platforms->name = NULL; smdk_dai[0].platforms->of_node = smdk_dai[0].cpus->of_node; } id = of_match_device(samsung_wm8994_of_match, &pdev->dev); if (id) *board = *((struct smdk_wm8994_data *)id->data); platform_set_drvdata(pdev, board); ret = devm_snd_soc_register_card(&pdev->dev, card); if (ret) dev_err_probe(&pdev->dev, ret, "snd_soc_register_card() failed\n"); return ret; } static struct platform_driver smdk_audio_driver = { .driver = { .name = "smdk-audio-wm8994", .of_match_table = of_match_ptr(samsung_wm8994_of_match), .pm = &snd_soc_pm_ops, }, .probe = smdk_audio_probe, }; module_platform_driver(smdk_audio_driver); MODULE_DESCRIPTION("ALSA SoC SMDK WM8994"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:smdk-audio-wm8994"); |