Loading...
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 | // SPDX-License-Identifier: GPL-2.0+ // // Copyright 2012 Freescale Semiconductor, Inc. // Copyright 2012 Linaro Ltd. #include <linux/gpio.h> #include <linux/module.h> #include <linux/of.h> #include <linux/of_platform.h> #include <linux/i2c.h> #include <linux/of_gpio.h> #include <sound/soc.h> #include <sound/jack.h> #include "imx-audmux.h" #define DAI_NAME_SIZE 32 #define MUX_PORT_MAX 7 struct imx_es8328_data { struct device *dev; struct snd_soc_dai_link dai; struct snd_soc_card card; char codec_dai_name[DAI_NAME_SIZE]; char platform_name[DAI_NAME_SIZE]; int jack_gpio; }; static struct snd_soc_jack_gpio headset_jack_gpios[] = { { .gpio = -1, .name = "headset-gpio", .report = SND_JACK_HEADSET, .invert = 0, .debounce_time = 200, }, }; static struct snd_soc_jack headset_jack; static int imx_es8328_dai_init(struct snd_soc_pcm_runtime *rtd) { struct imx_es8328_data *data = container_of(rtd->card, struct imx_es8328_data, card); int ret = 0; /* Headphone jack detection */ if (gpio_is_valid(data->jack_gpio)) { ret = snd_soc_card_jack_new(rtd->card, "Headphone", SND_JACK_HEADPHONE | SND_JACK_BTN_0, &headset_jack, NULL, 0); if (ret) return ret; headset_jack_gpios[0].gpio = data->jack_gpio; ret = snd_soc_jack_add_gpios(&headset_jack, ARRAY_SIZE(headset_jack_gpios), headset_jack_gpios); } return ret; } static const struct snd_soc_dapm_widget imx_es8328_dapm_widgets[] = { SND_SOC_DAPM_MIC("Mic Jack", NULL), SND_SOC_DAPM_HP("Headphone", NULL), SND_SOC_DAPM_SPK("Speaker", NULL), SND_SOC_DAPM_REGULATOR_SUPPLY("audio-amp", 1, 0), }; static int imx_es8328_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; struct device_node *ssi_np = NULL, *codec_np = NULL; struct platform_device *ssi_pdev; struct imx_es8328_data *data; struct snd_soc_dai_link_component *comp; u32 int_port, ext_port; int ret; struct device *dev = &pdev->dev; ret = of_property_read_u32(np, "mux-int-port", &int_port); if (ret) { dev_err(dev, "mux-int-port missing or invalid\n"); goto fail; } if (int_port > MUX_PORT_MAX || int_port == 0) { dev_err(dev, "mux-int-port: hardware only has %d mux ports\n", MUX_PORT_MAX); goto fail; } ret = of_property_read_u32(np, "mux-ext-port", &ext_port); if (ret) { dev_err(dev, "mux-ext-port missing or invalid\n"); goto fail; } if (ext_port > MUX_PORT_MAX || ext_port == 0) { dev_err(dev, "mux-ext-port: hardware only has %d mux ports\n", MUX_PORT_MAX); ret = -EINVAL; goto fail; } /* * 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(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(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(dev, "phandle missing or invalid\n"); ret = -EINVAL; goto fail; } ssi_pdev = of_find_device_by_node(ssi_np); if (!ssi_pdev) { dev_err(dev, "failed to find SSI platform device\n"); ret = -EINVAL; goto fail; } data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); if (!data) { ret = -ENOMEM; goto put_device; } comp = devm_kzalloc(dev, 3 * sizeof(*comp), GFP_KERNEL); if (!comp) { ret = -ENOMEM; goto put_device; } data->dev = dev; data->jack_gpio = of_get_named_gpio(pdev->dev.of_node, "jack-gpio", 0); 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 = "es8328-hifi-analog"; 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_es8328_dai_init; data->dai.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBP_CFP; data->card.dev = dev; data->card.dapm_widgets = imx_es8328_dapm_widgets; data->card.num_dapm_widgets = ARRAY_SIZE(imx_es8328_dapm_widgets); ret = snd_soc_of_parse_card_name(&data->card, "model"); if (ret) { dev_err(dev, "Unable to parse card name\n"); goto put_device; } ret = snd_soc_of_parse_audio_routing(&data->card, "audio-routing"); if (ret) { dev_err(dev, "Unable to parse routing: %d\n", ret); goto put_device; } data->card.num_links = 1; data->card.owner = THIS_MODULE; data->card.dai_link = &data->dai; ret = devm_snd_soc_register_card(&pdev->dev, &data->card); if (ret) { dev_err(dev, "Unable to register: %d\n", ret); goto put_device; } platform_set_drvdata(pdev, data); put_device: put_device(&ssi_pdev->dev); fail: of_node_put(ssi_np); of_node_put(codec_np); return ret; } static const struct of_device_id imx_es8328_dt_ids[] = { { .compatible = "fsl,imx-audio-es8328", }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, imx_es8328_dt_ids); static struct platform_driver imx_es8328_driver = { .driver = { .name = "imx-es8328", .of_match_table = imx_es8328_dt_ids, }, .probe = imx_es8328_probe, }; module_platform_driver(imx_es8328_driver); MODULE_AUTHOR("Sean Cross <xobs@kosagi.com>"); MODULE_DESCRIPTION("Kosagi i.MX6 ES8328 ASoC machine driver"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:imx-audio-es8328"); |