1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) 2 // 3 // Copyright 2019 NXP 4 // 5 // Author: Daniel Baluta <daniel.baluta@nxp.com> 6 // 7 8 #include <linux/firmware.h> 9 #include <linux/module.h> 10 #include <linux/pm_runtime.h> 11 #include <sound/sof.h> 12 13 #include "ops.h" 14 15 extern struct snd_sof_dsp_ops sof_imx8_ops; 16 extern struct snd_sof_dsp_ops sof_imx8x_ops; 17 extern struct snd_sof_dsp_ops sof_imx8m_ops; 18 19 /* platform specific devices */ 20 #if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8) 21 static struct sof_dev_desc sof_of_imx8qxp_desc = { 22 .default_fw_path = "imx/sof", 23 .default_tplg_path = "imx/sof-tplg", 24 .default_fw_filename = "sof-imx8x.ri", 25 .nocodec_tplg_filename = "sof-imx8-nocodec.tplg", 26 .ops = &sof_imx8x_ops, 27 }; 28 29 static struct sof_dev_desc sof_of_imx8qm_desc = { 30 .default_fw_path = "imx/sof", 31 .default_tplg_path = "imx/sof-tplg", 32 .default_fw_filename = "sof-imx8.ri", 33 .nocodec_tplg_filename = "sof-imx8-nocodec.tplg", 34 .ops = &sof_imx8_ops, 35 }; 36 #endif 37 38 #if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8M) 39 static struct sof_dev_desc sof_of_imx8mp_desc = { 40 .default_fw_path = "imx/sof", 41 .default_tplg_path = "imx/sof-tplg", 42 .default_fw_filename = "sof-imx8m.ri", 43 .nocodec_tplg_filename = "sof-imx8-nocodec.tplg", 44 .ops = &sof_imx8m_ops, 45 }; 46 #endif 47 48 static const struct dev_pm_ops sof_of_pm = { 49 .prepare = snd_sof_prepare, 50 .complete = snd_sof_complete, 51 SET_SYSTEM_SLEEP_PM_OPS(snd_sof_suspend, snd_sof_resume) 52 SET_RUNTIME_PM_OPS(snd_sof_runtime_suspend, snd_sof_runtime_resume, 53 NULL) 54 }; 55 56 static void sof_of_probe_complete(struct device *dev) 57 { 58 /* allow runtime_pm */ 59 pm_runtime_set_autosuspend_delay(dev, SND_SOF_SUSPEND_DELAY_MS); 60 pm_runtime_use_autosuspend(dev); 61 pm_runtime_set_active(dev); 62 pm_runtime_enable(dev); 63 64 pm_runtime_mark_last_busy(dev); 65 pm_runtime_put_autosuspend(dev); 66 } 67 68 static int sof_of_probe(struct platform_device *pdev) 69 { 70 struct device *dev = &pdev->dev; 71 const struct sof_dev_desc *desc; 72 struct snd_sof_pdata *sof_pdata; 73 const struct snd_sof_dsp_ops *ops; 74 int ret; 75 76 dev_info(&pdev->dev, "DT DSP detected"); 77 78 sof_pdata = devm_kzalloc(dev, sizeof(*sof_pdata), GFP_KERNEL); 79 if (!sof_pdata) 80 return -ENOMEM; 81 82 desc = device_get_match_data(dev); 83 if (!desc) 84 return -ENODEV; 85 86 /* get ops for platform */ 87 ops = desc->ops; 88 if (!ops) { 89 dev_err(dev, "error: no matching DT descriptor ops\n"); 90 return -ENODEV; 91 } 92 93 sof_pdata->desc = desc; 94 sof_pdata->dev = &pdev->dev; 95 sof_pdata->fw_filename = desc->default_fw_filename; 96 97 /* TODO: read alternate fw and tplg filenames from DT */ 98 sof_pdata->fw_filename_prefix = sof_pdata->desc->default_fw_path; 99 sof_pdata->tplg_filename_prefix = sof_pdata->desc->default_tplg_path; 100 101 #if IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE) 102 /* set callback to enable runtime_pm */ 103 sof_pdata->sof_probe_complete = sof_of_probe_complete; 104 #endif 105 /* call sof helper for DSP hardware probe */ 106 ret = snd_sof_device_probe(dev, sof_pdata); 107 if (ret) { 108 dev_err(dev, "error: failed to probe DSP hardware\n"); 109 return ret; 110 } 111 112 #if !IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE) 113 sof_of_probe_complete(dev); 114 #endif 115 116 return ret; 117 } 118 119 static int sof_of_remove(struct platform_device *pdev) 120 { 121 pm_runtime_disable(&pdev->dev); 122 123 /* call sof helper for DSP hardware remove */ 124 snd_sof_device_remove(&pdev->dev); 125 126 return 0; 127 } 128 129 static const struct of_device_id sof_of_ids[] = { 130 #if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8) 131 { .compatible = "fsl,imx8qxp-dsp", .data = &sof_of_imx8qxp_desc}, 132 { .compatible = "fsl,imx8qm-dsp", .data = &sof_of_imx8qm_desc}, 133 #endif 134 #if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8M) 135 { .compatible = "fsl,imx8mp-dsp", .data = &sof_of_imx8mp_desc}, 136 #endif 137 { } 138 }; 139 MODULE_DEVICE_TABLE(of, sof_of_ids); 140 141 /* DT driver definition */ 142 static struct platform_driver snd_sof_of_driver = { 143 .probe = sof_of_probe, 144 .remove = sof_of_remove, 145 .driver = { 146 .name = "sof-audio-of", 147 .pm = &sof_of_pm, 148 .of_match_table = sof_of_ids, 149 }, 150 }; 151 module_platform_driver(snd_sof_of_driver); 152 153 MODULE_LICENSE("Dual BSD/GPL"); 154