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 SET_SYSTEM_SLEEP_PM_OPS(snd_sof_suspend, snd_sof_resume) 50 SET_RUNTIME_PM_OPS(snd_sof_runtime_suspend, snd_sof_runtime_resume, 51 NULL) 52 }; 53 54 static void sof_of_probe_complete(struct device *dev) 55 { 56 /* allow runtime_pm */ 57 pm_runtime_set_autosuspend_delay(dev, SND_SOF_SUSPEND_DELAY_MS); 58 pm_runtime_use_autosuspend(dev); 59 pm_runtime_enable(dev); 60 } 61 62 static int sof_of_probe(struct platform_device *pdev) 63 { 64 struct device *dev = &pdev->dev; 65 const struct sof_dev_desc *desc; 66 struct snd_sof_pdata *sof_pdata; 67 const struct snd_sof_dsp_ops *ops; 68 int ret; 69 70 dev_info(&pdev->dev, "DT DSP detected"); 71 72 sof_pdata = devm_kzalloc(dev, sizeof(*sof_pdata), GFP_KERNEL); 73 if (!sof_pdata) 74 return -ENOMEM; 75 76 desc = device_get_match_data(dev); 77 if (!desc) 78 return -ENODEV; 79 80 /* get ops for platform */ 81 ops = desc->ops; 82 if (!ops) { 83 dev_err(dev, "error: no matching DT descriptor ops\n"); 84 return -ENODEV; 85 } 86 87 sof_pdata->desc = desc; 88 sof_pdata->dev = &pdev->dev; 89 sof_pdata->fw_filename = desc->default_fw_filename; 90 91 /* TODO: read alternate fw and tplg filenames from DT */ 92 sof_pdata->fw_filename_prefix = sof_pdata->desc->default_fw_path; 93 sof_pdata->tplg_filename_prefix = sof_pdata->desc->default_tplg_path; 94 95 #if IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE) 96 /* set callback to enable runtime_pm */ 97 sof_pdata->sof_probe_complete = sof_of_probe_complete; 98 #endif 99 /* call sof helper for DSP hardware probe */ 100 ret = snd_sof_device_probe(dev, sof_pdata); 101 if (ret) { 102 dev_err(dev, "error: failed to probe DSP hardware\n"); 103 return ret; 104 } 105 106 #if !IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE) 107 sof_of_probe_complete(dev); 108 #endif 109 110 return ret; 111 } 112 113 static int sof_of_remove(struct platform_device *pdev) 114 { 115 pm_runtime_disable(&pdev->dev); 116 117 /* call sof helper for DSP hardware remove */ 118 snd_sof_device_remove(&pdev->dev); 119 120 return 0; 121 } 122 123 static const struct of_device_id sof_of_ids[] = { 124 #if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8) 125 { .compatible = "fsl,imx8qxp-dsp", .data = &sof_of_imx8qxp_desc}, 126 { .compatible = "fsl,imx8qm-dsp", .data = &sof_of_imx8qm_desc}, 127 #endif 128 #if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8M) 129 { .compatible = "fsl,imx8mp-dsp", .data = &sof_of_imx8mp_desc}, 130 #endif 131 { } 132 }; 133 MODULE_DEVICE_TABLE(of, sof_of_ids); 134 135 /* DT driver definition */ 136 static struct platform_driver snd_sof_of_driver = { 137 .probe = sof_of_probe, 138 .remove = sof_of_remove, 139 .driver = { 140 .name = "sof-audio-of", 141 .pm = &sof_of_pm, 142 .of_match_table = sof_of_ids, 143 }, 144 }; 145 module_platform_driver(snd_sof_of_driver); 146 147 MODULE_LICENSE("Dual BSD/GPL"); 148