1 // SPDX-License-Identifier: GPL-2.0-only
3  * HD-audio codec driver binding
10 #include <linux/module.h>
14 #include <sound/core.h>
23 	struct hda_codec *codec = container_of(dev, struct hda_codec, core);  in hda_codec_match()
25 		container_of(drv, struct hda_codec_driver, core);  in hda_codec_match()
28 	u32 id = codec->probe_id ? codec->probe_id : codec->core.vendor_id;  in hda_codec_match()
29 	u32 rev_id = codec->core.revision_id;  in hda_codec_match()
31 	for (list = driver->id; list->vendor_id; list++) {  in hda_codec_match()
32 		if (list->vendor_id == id &&  in hda_codec_match()
33 		    (!list->rev_id || list->rev_id == rev_id)) {  in hda_codec_match()
34 			codec->preset = list;  in hda_codec_match()
44 	struct hda_codec *codec = container_of(dev, struct hda_codec, core);  in hda_codec_unsol_event()
47 	if (codec->bus->shutdown)  in hda_codec_unsol_event()
51 	if (codec->core.dev.power.power_state.event != PM_EVENT_ON)  in hda_codec_unsol_event()
54 	if (codec->patch_ops.unsol_event)  in hda_codec_unsol_event()
55 		codec->patch_ops.unsol_event(codec, ev);  in hda_codec_unsol_event()
59  * snd_hda_codec_set_name - set the codec name
69 	err = snd_hdac_device_set_chip_name(&codec->core, name);  in snd_hda_codec_set_name()
74 	if (!*codec->card->mixername ||  in snd_hda_codec_set_name()
75 	    codec->bus->mixer_assigned >= codec->core.addr) {  in snd_hda_codec_set_name()
76 		snprintf(codec->card->mixername,  in snd_hda_codec_set_name()
77 			 sizeof(codec->card->mixername), "%s %s",  in snd_hda_codec_set_name()
78 			 codec->core.vendor_name, codec->core.chip_name);  in snd_hda_codec_set_name()
79 		codec->bus->mixer_assigned = codec->core.addr;  in snd_hda_codec_set_name()
89 	struct module *owner = dev->driver->owner;  in hda_codec_driver_probe()
93 	if (codec->bus->core.ext_ops) {  in hda_codec_driver_probe()
94 		if (WARN_ON(!codec->bus->core.ext_ops->hdev_attach))  in hda_codec_driver_probe()
95 			return -EINVAL;  in hda_codec_driver_probe()
96 		return codec->bus->core.ext_ops->hdev_attach(&codec->core);  in hda_codec_driver_probe()
99 	if (WARN_ON(!codec->preset))  in hda_codec_driver_probe()
100 		return -EINVAL;  in hda_codec_driver_probe()
102 	err = snd_hda_codec_set_name(codec, codec->preset->name);  in hda_codec_driver_probe()
105 	err = snd_hdac_regmap_init(&codec->core);  in hda_codec_driver_probe()
110 		err = -EINVAL;  in hda_codec_driver_probe()
114 	patch = (hda_codec_patch_t)codec->preset->driver_data;  in hda_codec_driver_probe()
128 	if (!codec->bus->bus_probing && codec->card->registered) {  in hda_codec_driver_probe()
129 		err = snd_card_register(codec->card);  in hda_codec_driver_probe()
135 	codec->core.lazy_cache = true;  in hda_codec_driver_probe()
139 	if (codec->patch_ops.free)  in hda_codec_driver_probe()
140 		codec->patch_ops.free(codec);  in hda_codec_driver_probe()
153 	if (codec->bus->core.ext_ops) {  in hda_codec_driver_remove()
154 		if (WARN_ON(!codec->bus->core.ext_ops->hdev_detach))  in hda_codec_driver_remove()
155 			return -EINVAL;  in hda_codec_driver_remove()
156 		return codec->bus->core.ext_ops->hdev_detach(&codec->core);  in hda_codec_driver_remove()
159 	if (codec->patch_ops.free)  in hda_codec_driver_remove()
160 		codec->patch_ops.free(codec);  in hda_codec_driver_remove()
162 	module_put(dev->driver->owner);  in hda_codec_driver_remove()
172 			       struct module *owner)  in __hda_codec_driver_register()
174 	drv->core.driver.name = name;  in __hda_codec_driver_register()
175 	drv->core.driver.owner = owner;  in __hda_codec_driver_register()
176 	drv->core.driver.bus = &snd_hda_bus_type;  in __hda_codec_driver_register()
177 	drv->core.driver.probe = hda_codec_driver_probe;  in __hda_codec_driver_register()
178 	drv->core.driver.remove = hda_codec_driver_remove;  in __hda_codec_driver_register()
179 	drv->core.driver.shutdown = hda_codec_driver_shutdown;  in __hda_codec_driver_register()
180 	drv->core.driver.pm = &hda_codec_driver_pm;  in __hda_codec_driver_register()
181 	drv->core.type = HDA_DEV_LEGACY;  in __hda_codec_driver_register()
182 	drv->core.match = hda_codec_match;  in __hda_codec_driver_register()
183 	drv->core.unsol_event = hda_codec_unsol_event;  in __hda_codec_driver_register()
184 	return driver_register(&drv->core.driver);  in __hda_codec_driver_register()
190 	driver_unregister(&drv->core.driver);  in hda_codec_driver_unregister()
196 	return device_attach(hda_codec_dev(codec)) > 0 && codec->preset;  in codec_probed()
199 /* try to auto-load codec module */
202 #ifdef MODULE  in request_codec_module()
206 	switch (codec->probe_id) {  in request_codec_module()
209 		mod = "snd-hda-codec-hdmi";  in request_codec_module()
214 		mod = "snd-hda-codec-generic";  in request_codec_module()
218 		snd_hdac_codec_modalias(&codec->core, modalias, sizeof(modalias));  in request_codec_module()
225 #endif /* MODULE */  in request_codec_module()
228 /* try to auto-load and bind the codec module */
231 #ifdef MODULE  in codec_bind_module()
264 	if (codec->probe_id)  in codec_bind_generic()
265 		return -ENODEV;  in codec_bind_generic()
268 		codec->probe_id = HDA_CODEC_ID_GENERIC_HDMI;  in codec_bind_generic()
274 	codec->probe_id = HDA_CODEC_ID_GENERIC;  in codec_bind_generic()
278 	return -ENODEV;  in codec_bind_generic()
283 	(codec->modelname && !strcmp(codec->modelname, "generic"))
289  * snd_hda_codec_configure - (Re-)configure the HD-audio codec
292  * Start parsing of the given codec tree and (re-)initialize the whole
301 	if (codec->configured)  in snd_hda_codec_configure()
305 		codec->probe_id = HDA_CODEC_ID_GENERIC;  in snd_hda_codec_configure()
307 		codec->probe_id = 0;  in snd_hda_codec_configure()
309 	if (!device_is_registered(&codec->core.dev)) {  in snd_hda_codec_configure()
310 		err = snd_hdac_device_register(&codec->core);  in snd_hda_codec_configure()
315 	if (!codec->preset)  in snd_hda_codec_configure()
317 	if (!codec->preset) {  in snd_hda_codec_configure()
325 	codec->configured = 1;  in snd_hda_codec_configure()