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/moduleparam.h> 11 #include <linux/pm_runtime.h> 12 #include <sound/sof.h> 13 14 #include "sof-of-dev.h" 15 #include "ops.h" 16 17 static char *fw_path; 18 module_param(fw_path, charp, 0444); 19 MODULE_PARM_DESC(fw_path, "deprecated - moved to snd-sof module."); 20 21 static char *fw_filename; 22 module_param(fw_filename, charp, 0444); 23 MODULE_PARM_DESC(fw_filename, "deprecated - moved to snd-sof module."); 24 25 static char *tplg_path; 26 module_param(tplg_path, charp, 0444); 27 MODULE_PARM_DESC(tplg_path, "deprecated - moved to snd-sof module."); 28 29 static char *tplg_filename; 30 module_param(tplg_filename, charp, 0444); 31 MODULE_PARM_DESC(tplg_filename, "deprecated - moved to snd-sof module."); 32 33 EXPORT_DEV_PM_OPS(sof_of_pm) = { 34 .prepare = snd_sof_prepare, 35 .complete = snd_sof_complete, 36 SYSTEM_SLEEP_PM_OPS(snd_sof_suspend, snd_sof_resume) 37 RUNTIME_PM_OPS(snd_sof_runtime_suspend, snd_sof_runtime_resume, NULL) 38 }; 39 40 static void sof_of_probe_complete(struct device *dev) 41 { 42 /* allow runtime_pm */ 43 pm_runtime_set_autosuspend_delay(dev, SND_SOF_SUSPEND_DELAY_MS); 44 pm_runtime_use_autosuspend(dev); 45 pm_runtime_mark_last_busy(dev); 46 pm_runtime_set_active(dev); 47 pm_runtime_enable(dev); 48 } 49 50 int sof_of_probe(struct platform_device *pdev) 51 { 52 struct device *dev = &pdev->dev; 53 const struct sof_dev_desc *desc; 54 struct snd_sof_pdata *sof_pdata; 55 56 dev_info(&pdev->dev, "DT DSP detected"); 57 58 sof_pdata = devm_kzalloc(dev, sizeof(*sof_pdata), GFP_KERNEL); 59 if (!sof_pdata) 60 return -ENOMEM; 61 62 desc = device_get_match_data(dev); 63 if (!desc) 64 return -ENODEV; 65 66 if (!desc->ops) { 67 dev_err(dev, "error: no matching DT descriptor ops\n"); 68 return -ENODEV; 69 } 70 71 sof_pdata->desc = desc; 72 sof_pdata->dev = &pdev->dev; 73 74 sof_pdata->ipc_file_profile_base.ipc_type = desc->ipc_default; 75 sof_pdata->ipc_file_profile_base.fw_path = fw_path; 76 sof_pdata->ipc_file_profile_base.tplg_path = tplg_path; 77 sof_pdata->ipc_file_profile_base.fw_name = fw_filename; 78 sof_pdata->ipc_file_profile_base.tplg_name = tplg_filename; 79 80 /* set callback to be called on successful device probe to enable runtime_pm */ 81 sof_pdata->sof_probe_complete = sof_of_probe_complete; 82 83 /* call sof helper for DSP hardware probe */ 84 return snd_sof_device_probe(dev, sof_pdata); 85 } 86 EXPORT_SYMBOL(sof_of_probe); 87 88 void sof_of_remove(struct platform_device *pdev) 89 { 90 pm_runtime_disable(&pdev->dev); 91 92 /* call sof helper for DSP hardware remove */ 93 snd_sof_device_remove(&pdev->dev); 94 } 95 EXPORT_SYMBOL(sof_of_remove); 96 97 void sof_of_shutdown(struct platform_device *pdev) 98 { 99 snd_sof_device_shutdown(&pdev->dev); 100 } 101 EXPORT_SYMBOL(sof_of_shutdown); 102 103 MODULE_LICENSE("Dual BSD/GPL"); 104 MODULE_DESCRIPTION("SOF support for OF/DT platforms"); 105