^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) //
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) // Copyright (C) 2013 Freescale Semiconductor, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include <linux/of_platform.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <sound/soc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) struct imx_spdif_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) struct snd_soc_dai_link dai;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) struct snd_soc_card card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) static int imx_spdif_audio_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) struct device_node *spdif_np, *np = pdev->dev.of_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) struct imx_spdif_data *data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) struct snd_soc_dai_link_component *comp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) spdif_np = of_parse_phandle(np, "spdif-controller", 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) if (!spdif_np) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) dev_err(&pdev->dev, "failed to find spdif-controller\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) goto end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) comp = devm_kzalloc(&pdev->dev, 3 * sizeof(*comp), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) if (!data || !comp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) goto end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) data->dai.cpus = &comp[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) data->dai.codecs = &comp[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) data->dai.platforms = &comp[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) data->dai.num_cpus = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) data->dai.num_codecs = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) data->dai.num_platforms = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) data->dai.name = "S/PDIF PCM";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) data->dai.stream_name = "S/PDIF PCM";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) data->dai.codecs->dai_name = "snd-soc-dummy-dai";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) data->dai.codecs->name = "snd-soc-dummy";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) data->dai.cpus->of_node = spdif_np;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) data->dai.platforms->of_node = spdif_np;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) data->dai.playback_only = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) data->dai.capture_only = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) if (of_property_read_bool(np, "spdif-out"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) data->dai.capture_only = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) if (of_property_read_bool(np, "spdif-in"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) data->dai.playback_only = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) if (data->dai.playback_only && data->dai.capture_only) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) dev_err(&pdev->dev, "no enabled S/PDIF DAI link\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) goto end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) data->card.dev = &pdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) data->card.dai_link = &data->dai;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) data->card.num_links = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) data->card.owner = THIS_MODULE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) ret = snd_soc_of_parse_card_name(&data->card, "model");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) goto end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) ret = devm_snd_soc_register_card(&pdev->dev, &data->card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) if (ret && ret != -EPROBE_DEFER)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) dev_err(&pdev->dev, "snd_soc_register_card failed: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) end:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) of_node_put(spdif_np);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) static const struct of_device_id imx_spdif_dt_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) { .compatible = "fsl,imx-audio-spdif", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) { /* sentinel */ }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) MODULE_DEVICE_TABLE(of, imx_spdif_dt_ids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) static struct platform_driver imx_spdif_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) .name = "imx-spdif",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) .pm = &snd_soc_pm_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) .of_match_table = imx_spdif_dt_ids,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) .probe = imx_spdif_audio_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) module_platform_driver(imx_spdif_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) MODULE_AUTHOR("Freescale Semiconductor, Inc.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) MODULE_DESCRIPTION("Freescale i.MX S/PDIF machine driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) MODULE_LICENSE("GPL v2");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) MODULE_ALIAS("platform:imx-spdif");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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