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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 | // SPDX-License-Identifier: GPL-2.0+ // // Copyright 2012 Freescale Semiconductor, Inc. // Copyright 2012 Linaro Ltd. #include <linux/module.h> #include <linux/of.h> #include <linux/of_platform.h> #include <linux/i2c.h> #include <linux/clk.h> #include <sound/soc.h> #include "../codecs/sgtl5000.h" #include "imx-audmux.h" #define DAI_NAME_SIZE 32 struct imx_sgtl5000_data { struct snd_soc_dai_link dai; struct snd_soc_card card; char codec_dai_name[DAI_NAME_SIZE]; char platform_name[DAI_NAME_SIZE]; struct clk *codec_clk; unsigned int clk_frequency; }; static int imx_sgtl5000_dai_init(struct snd_soc_pcm_runtime *rtd) { struct imx_sgtl5000_data *data = snd_soc_card_get_drvdata(rtd->card); struct device *dev = rtd->card->dev; int ret; ret = snd_soc_dai_set_sysclk(rtd->codec_dai, SGTL5000_SYSCLK, data->clk_frequency, SND_SOC_CLOCK_IN); if (ret) { dev_err(dev, "could not set codec driver clock params\n"); return ret; } return 0; } static const struct snd_soc_dapm_widget imx_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 int imx_sgtl5000_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; struct device_node *ssi_np, *codec_np; struct platform_device *ssi_pdev; struct i2c_client *codec_dev; struct imx_sgtl5000_data *data = NULL; struct snd_soc_dai_link_component *comp; int int_port, ext_port; int ret; ret = of_property_read_u32(np, "mux-int-port", &int_port); if (ret) { dev_err(&pdev->dev, "mux-int-port missing or invalid\n"); return ret; } ret = of_property_read_u32(np, "mux-ext-port", &ext_port); if (ret) { dev_err(&pdev->dev, "mux-ext-port missing or invalid\n"); return ret; } /* * The port numbering in the hardware manual starts at 1, while * the audmux API expects it starts at 0. */ int_port--; ext_port--; ret = imx_audmux_v2_configure_port(int_port, IMX_AUDMUX_V2_PTCR_SYN | IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) | IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) | IMX_AUDMUX_V2_PTCR_TFSDIR | IMX_AUDMUX_V2_PTCR_TCLKDIR, IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port)); if (ret) { dev_err(&pdev->dev, "audmux internal port setup failed\n"); return ret; } ret = imx_audmux_v2_configure_port(ext_port, IMX_AUDMUX_V2_PTCR_SYN, IMX_AUDMUX_V2_PDCR_RXDSEL(int_port)); if (ret) { dev_err(&pdev->dev, "audmux external port setup failed\n"); return ret; } ssi_np = of_parse_phandle(pdev->dev.of_node, "ssi-controller", 0); codec_np = of_parse_phandle(pdev->dev.of_node, "audio-codec", 0); if (!ssi_np || !codec_np) { dev_err(&pdev->dev, "phandle missing or invalid\n"); ret = -EINVAL; goto fail; } ssi_pdev = of_find_device_by_node(ssi_np); if (!ssi_pdev) { dev_dbg(&pdev->dev, "failed to find SSI platform device\n"); ret = -EPROBE_DEFER; goto fail; } put_device(&ssi_pdev->dev); codec_dev = of_find_i2c_device_by_node(codec_np); if (!codec_dev) { dev_dbg(&pdev->dev, "failed to find codec platform device\n"); ret = -EPROBE_DEFER; goto fail; } data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); if (!data) { ret = -ENOMEM; goto fail; } comp = devm_kzalloc(&pdev->dev, 3 * sizeof(*comp), GFP_KERNEL); if (!comp) { ret = -ENOMEM; goto fail; } data->codec_clk = clk_get(&codec_dev->dev, NULL); if (IS_ERR(data->codec_clk)) { ret = PTR_ERR(data->codec_clk); goto fail; } data->clk_frequency = clk_get_rate(data->codec_clk); data->dai.cpus = &comp[0]; data->dai.codecs = &comp[1]; data->dai.platforms = &comp[2]; data->dai.num_cpus = 1; data->dai.num_codecs = 1; data->dai.num_platforms = 1; data->dai.name = "HiFi"; data->dai.stream_name = "HiFi"; data->dai.codecs->dai_name = "sgtl5000"; data->dai.codecs->of_node = codec_np; data->dai.cpus->of_node = ssi_np; data->dai.platforms->of_node = ssi_np; data->dai.init = &imx_sgtl5000_dai_init; data->dai.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM; data->card.dev = &pdev->dev; ret = snd_soc_of_parse_card_name(&data->card, "model"); if (ret) goto fail; ret = snd_soc_of_parse_audio_routing(&data->card, "audio-routing"); if (ret) goto fail; data->card.num_links = 1; data->card.owner = THIS_MODULE; data->card.dai_link = &data->dai; data->card.dapm_widgets = imx_sgtl5000_dapm_widgets; data->card.num_dapm_widgets = ARRAY_SIZE(imx_sgtl5000_dapm_widgets); platform_set_drvdata(pdev, &data->card); snd_soc_card_set_drvdata(&data->card, data); ret = devm_snd_soc_register_card(&pdev->dev, &data->card); if (ret) { if (ret != -EPROBE_DEFER) dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); goto fail; } of_node_put(ssi_np); of_node_put(codec_np); return 0; fail: if (data && !IS_ERR(data->codec_clk)) clk_put(data->codec_clk); of_node_put(ssi_np); of_node_put(codec_np); return ret; } static int imx_sgtl5000_remove(struct platform_device *pdev) { struct snd_soc_card *card = platform_get_drvdata(pdev); struct imx_sgtl5000_data *data = snd_soc_card_get_drvdata(card); clk_put(data->codec_clk); return 0; } static const struct of_device_id imx_sgtl5000_dt_ids[] = { { .compatible = "fsl,imx-audio-sgtl5000", }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, imx_sgtl5000_dt_ids); static struct platform_driver imx_sgtl5000_driver = { .driver = { .name = "imx-sgtl5000", .pm = &snd_soc_pm_ops, .of_match_table = imx_sgtl5000_dt_ids, }, .probe = imx_sgtl5000_probe, .remove = imx_sgtl5000_remove, }; module_platform_driver(imx_sgtl5000_driver); MODULE_AUTHOR("Shawn Guo <shawn.guo@linaro.org>"); MODULE_DESCRIPTION("Freescale i.MX SGTL5000 ASoC machine driver"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:imx-sgtl5000"); |