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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 | // SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) // // Copyright 2019 NXP // // Author: Daniel Baluta <daniel.baluta@nxp.com> // #include <linux/firmware.h> #include <linux/module.h> #include <linux/pm_runtime.h> #include <sound/sof.h> #include "ops.h" extern struct snd_sof_dsp_ops sof_imx8_ops; /* platform specific devices */ #if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8) static struct sof_dev_desc sof_of_imx8qxp_desc = { .default_fw_path = "imx/sof", .default_tplg_path = "imx/sof-tplg", .nocodec_fw_filename = "sof-imx8.ri", .nocodec_tplg_filename = "sof-imx8-nocodec.tplg", .ops = &sof_imx8_ops, }; #endif static const struct dev_pm_ops sof_of_pm = { SET_SYSTEM_SLEEP_PM_OPS(snd_sof_suspend, snd_sof_resume) SET_RUNTIME_PM_OPS(snd_sof_runtime_suspend, snd_sof_runtime_resume, NULL) }; static void sof_of_probe_complete(struct device *dev) { /* allow runtime_pm */ pm_runtime_set_autosuspend_delay(dev, SND_SOF_SUSPEND_DELAY_MS); pm_runtime_use_autosuspend(dev); pm_runtime_enable(dev); } static int sof_of_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; const struct sof_dev_desc *desc; /*TODO: create a generic snd_soc_xxx_mach */ struct snd_soc_acpi_mach *mach; struct snd_sof_pdata *sof_pdata; const struct snd_sof_dsp_ops *ops; int ret; dev_info(&pdev->dev, "DT DSP detected"); sof_pdata = devm_kzalloc(dev, sizeof(*sof_pdata), GFP_KERNEL); if (!sof_pdata) return -ENOMEM; desc = device_get_match_data(dev); if (!desc) return -ENODEV; /* get ops for platform */ ops = desc->ops; if (!ops) { dev_err(dev, "error: no matching DT descriptor ops\n"); return -ENODEV; } #if IS_ENABLED(CONFIG_SND_SOC_SOF_FORCE_NOCODEC_MODE) /* force nocodec mode */ dev_warn(dev, "Force to use nocodec mode\n"); mach = devm_kzalloc(dev, sizeof(*mach), GFP_KERNEL); if (!mach) return -ENOMEM; ret = sof_nocodec_setup(dev, sof_pdata, mach, desc, ops); if (ret < 0) return ret; #else /* TODO: implement case where we actually have a codec */ return -ENODEV; #endif if (mach) mach->mach_params.platform = dev_name(dev); sof_pdata->machine = mach; sof_pdata->desc = desc; sof_pdata->dev = &pdev->dev; sof_pdata->platform = dev_name(dev); /* TODO: read alternate fw and tplg filenames from DT */ sof_pdata->fw_filename_prefix = sof_pdata->desc->default_fw_path; sof_pdata->tplg_filename_prefix = sof_pdata->desc->default_tplg_path; #if IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE) /* set callback to enable runtime_pm */ sof_pdata->sof_probe_complete = sof_of_probe_complete; #endif /* call sof helper for DSP hardware probe */ ret = snd_sof_device_probe(dev, sof_pdata); if (ret) { dev_err(dev, "error: failed to probe DSP hardware\n"); return ret; } #if !IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE) sof_of_probe_complete(dev); #endif return ret; } static int sof_of_remove(struct platform_device *pdev) { pm_runtime_disable(&pdev->dev); /* call sof helper for DSP hardware remove */ snd_sof_device_remove(&pdev->dev); return 0; } static const struct of_device_id sof_of_ids[] = { #if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8) { .compatible = "fsl,imx8qxp-dsp", .data = &sof_of_imx8qxp_desc}, #endif { } }; MODULE_DEVICE_TABLE(of, sof_of_ids); /* DT driver definition */ static struct platform_driver snd_sof_of_driver = { .probe = sof_of_probe, .remove = sof_of_remove, .driver = { .name = "sof-audio-of", .pm = &sof_of_pm, .of_match_table = sof_of_ids, }, }; module_platform_driver(snd_sof_of_driver); MODULE_LICENSE("Dual BSD/GPL"); |