1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
3 // This file is provided under a dual BSD/GPLv2 license. When using or
4 // redistributing this file, you may do so under either license.
6 // Copyright(c) 2018 Intel Corporation. All rights reserved.
8 // Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
11 #include <linux/acpi.h>
12 #include <linux/firmware.h>
13 #include <linux/module.h>
14 #include <linux/pm_runtime.h>
15 #include <sound/soc-acpi.h>
16 #include <sound/soc-acpi-intel-match.h>
17 #include <sound/sof.h>
18 #include "../intel/common/soc-intel-quirks.h"
21 /* platform specific devices */
22 #include "intel/shim.h"
25 module_param(fw_path, charp, 0444);
26 MODULE_PARM_DESC(fw_path, "alternate path for SOF firmware.");
28 static char *tplg_path;
29 module_param(tplg_path, charp, 0444);
30 MODULE_PARM_DESC(tplg_path, "alternate path for SOF topology.");
32 static int sof_acpi_debug;
33 module_param_named(sof_acpi_debug, sof_acpi_debug, int, 0444);
34 MODULE_PARM_DESC(sof_acpi_debug, "SOF ACPI debug options (0x0 all off)");
36 #define SOF_ACPI_DISABLE_PM_RUNTIME BIT(0)
38 #if IS_ENABLED(CONFIG_ACPI) && IS_ENABLED(CONFIG_SND_SOC_SOF_BROADWELL)
39 static const struct sof_dev_desc sof_acpi_broadwell_desc = {
40 .machines = snd_soc_acpi_intel_broadwell_machines,
41 .resindex_lpe_base = 0,
42 .resindex_pcicfg_base = 1,
43 .resindex_imr_base = -1,
44 .irqindex_host_ipc = 0,
45 .chip_info = &bdw_chip_info,
46 .default_fw_path = "intel/sof",
47 .default_tplg_path = "intel/sof-tplg",
48 .default_fw_filename = "sof-bdw.ri",
49 .nocodec_tplg_filename = "sof-bdw-nocodec.tplg",
54 #if IS_ENABLED(CONFIG_ACPI) && IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL)
56 /* BYTCR uses different IRQ index */
57 static const struct sof_dev_desc sof_acpi_baytrailcr_desc = {
58 .machines = snd_soc_acpi_intel_baytrail_machines,
59 .resindex_lpe_base = 0,
60 .resindex_pcicfg_base = 1,
61 .resindex_imr_base = 2,
62 .irqindex_host_ipc = 0,
63 .chip_info = &byt_chip_info,
64 .default_fw_path = "intel/sof",
65 .default_tplg_path = "intel/sof-tplg",
66 .default_fw_filename = "sof-byt.ri",
67 .nocodec_tplg_filename = "sof-byt-nocodec.tplg",
71 static const struct sof_dev_desc sof_acpi_baytrail_desc = {
72 .machines = snd_soc_acpi_intel_baytrail_machines,
73 .resindex_lpe_base = 0,
74 .resindex_pcicfg_base = 1,
75 .resindex_imr_base = 2,
76 .irqindex_host_ipc = 5,
77 .chip_info = &byt_chip_info,
78 .default_fw_path = "intel/sof",
79 .default_tplg_path = "intel/sof-tplg",
80 .default_fw_filename = "sof-byt.ri",
81 .nocodec_tplg_filename = "sof-byt-nocodec.tplg",
85 static const struct sof_dev_desc sof_acpi_cherrytrail_desc = {
86 .machines = snd_soc_acpi_intel_cherrytrail_machines,
87 .resindex_lpe_base = 0,
88 .resindex_pcicfg_base = 1,
89 .resindex_imr_base = 2,
90 .irqindex_host_ipc = 5,
91 .chip_info = &cht_chip_info,
92 .default_fw_path = "intel/sof",
93 .default_tplg_path = "intel/sof-tplg",
94 .default_fw_filename = "sof-cht.ri",
95 .nocodec_tplg_filename = "sof-cht-nocodec.tplg",
101 static const struct dev_pm_ops sof_acpi_pm = {
102 SET_SYSTEM_SLEEP_PM_OPS(snd_sof_suspend, snd_sof_resume)
103 SET_RUNTIME_PM_OPS(snd_sof_runtime_suspend, snd_sof_runtime_resume,
104 snd_sof_runtime_idle)
107 static void sof_acpi_probe_complete(struct device *dev)
109 dev_dbg(dev, "Completing SOF ACPI probe");
111 if (sof_acpi_debug & SOF_ACPI_DISABLE_PM_RUNTIME)
114 /* allow runtime_pm */
115 pm_runtime_set_autosuspend_delay(dev, SND_SOF_SUSPEND_DELAY_MS);
116 pm_runtime_use_autosuspend(dev);
117 pm_runtime_enable(dev);
120 static int sof_acpi_probe(struct platform_device *pdev)
122 struct device *dev = &pdev->dev;
123 const struct sof_dev_desc *desc;
124 struct snd_sof_pdata *sof_pdata;
125 const struct snd_sof_dsp_ops *ops;
128 dev_dbg(&pdev->dev, "ACPI DSP detected");
130 sof_pdata = devm_kzalloc(dev, sizeof(*sof_pdata), GFP_KERNEL);
134 desc = device_get_match_data(dev);
138 #if IS_ENABLED(CONFIG_ACPI) && IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL)
139 if (desc == &sof_acpi_baytrail_desc && soc_intel_is_byt_cr(pdev))
140 desc = &sof_acpi_baytrailcr_desc;
143 /* get ops for platform */
146 dev_err(dev, "error: no matching ACPI descriptor ops\n");
150 sof_pdata->desc = desc;
151 sof_pdata->dev = &pdev->dev;
152 sof_pdata->fw_filename = desc->default_fw_filename;
154 /* alternate fw and tplg filenames ? */
156 sof_pdata->fw_filename_prefix = fw_path;
158 sof_pdata->fw_filename_prefix =
159 sof_pdata->desc->default_fw_path;
162 sof_pdata->tplg_filename_prefix = tplg_path;
164 sof_pdata->tplg_filename_prefix =
165 sof_pdata->desc->default_tplg_path;
167 #if IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE)
168 /* set callback to enable runtime_pm */
169 sof_pdata->sof_probe_complete = sof_acpi_probe_complete;
171 /* call sof helper for DSP hardware probe */
172 ret = snd_sof_device_probe(dev, sof_pdata);
174 dev_err(dev, "error: failed to probe DSP hardware!\n");
178 #if !IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE)
179 sof_acpi_probe_complete(dev);
185 static int sof_acpi_remove(struct platform_device *pdev)
187 if (!(sof_acpi_debug & SOF_ACPI_DISABLE_PM_RUNTIME))
188 pm_runtime_disable(&pdev->dev);
190 /* call sof helper for DSP hardware remove */
191 snd_sof_device_remove(&pdev->dev);
197 static const struct acpi_device_id sof_acpi_match[] = {
198 #if IS_ENABLED(CONFIG_SND_SOC_SOF_BROADWELL)
199 { "INT3438", (unsigned long)&sof_acpi_broadwell_desc },
201 #if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL)
202 { "80860F28", (unsigned long)&sof_acpi_baytrail_desc },
203 { "808622A8", (unsigned long)&sof_acpi_cherrytrail_desc },
207 MODULE_DEVICE_TABLE(acpi, sof_acpi_match);
210 /* acpi_driver definition */
211 static struct platform_driver snd_sof_acpi_driver = {
212 .probe = sof_acpi_probe,
213 .remove = sof_acpi_remove,
215 .name = "sof-audio-acpi",
217 .acpi_match_table = ACPI_PTR(sof_acpi_match),
220 module_platform_driver(snd_sof_acpi_driver);
222 MODULE_LICENSE("Dual BSD/GPL");
223 MODULE_IMPORT_NS(SND_SOC_SOF_BAYTRAIL);
224 MODULE_IMPORT_NS(SND_SOC_SOF_BROADWELL);