Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * HD-audio codec driver binding
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  * Copyright (c) Takashi Iwai <tiwai@suse.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <linux/mutex.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/export.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/pm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/pm_runtime.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <sound/core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <sound/hda_codec.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include "hda_local.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19)  * find a matching codec id
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) static int hda_codec_match(struct hdac_device *dev, struct hdac_driver *drv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 	struct hda_codec *codec = container_of(dev, struct hda_codec, core);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 	struct hda_codec_driver *driver =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 		container_of(drv, struct hda_codec_driver, core);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 	const struct hda_device_id *list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 	/* check probe_id instead of vendor_id if set */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 	u32 id = codec->probe_id ? codec->probe_id : codec->core.vendor_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	u32 rev_id = codec->core.revision_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	for (list = driver->id; list->vendor_id; list++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 		if (list->vendor_id == id &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 		    (!list->rev_id || list->rev_id == rev_id)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 			codec->preset = list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 			return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) /* process an unsolicited event */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) static void hda_codec_unsol_event(struct hdac_device *dev, unsigned int ev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	struct hda_codec *codec = container_of(dev, struct hda_codec, core);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	/* ignore unsol events during shutdown */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	if (codec->bus->shutdown)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	/* ignore unsol events during system suspend/resume */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	if (codec->core.dev.power.power_state.event != PM_EVENT_ON)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	if (codec->patch_ops.unsol_event)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 		codec->patch_ops.unsol_event(codec, ev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59)  * snd_hda_codec_set_name - set the codec name
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60)  * @codec: the HDA codec
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61)  * @name: name string to set
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) int snd_hda_codec_set_name(struct hda_codec *codec, const char *name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	if (!name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	err = snd_hdac_device_set_chip_name(&codec->core, name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	/* update the mixer name */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	if (!*codec->card->mixername ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	    codec->bus->mixer_assigned >= codec->core.addr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 		snprintf(codec->card->mixername,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 			 sizeof(codec->card->mixername), "%s %s",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 			 codec->core.vendor_name, codec->core.chip_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 		codec->bus->mixer_assigned = codec->core.addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) EXPORT_SYMBOL_GPL(snd_hda_codec_set_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) static int hda_codec_driver_probe(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	struct hda_codec *codec = dev_to_hda_codec(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	struct module *owner = dev->driver->owner;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	hda_codec_patch_t patch;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	if (codec->bus->core.ext_ops) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 		if (WARN_ON(!codec->bus->core.ext_ops->hdev_attach))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 			return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 		return codec->bus->core.ext_ops->hdev_attach(&codec->core);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	if (WARN_ON(!codec->preset))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	err = snd_hda_codec_set_name(codec, codec->preset->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 		goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	err = snd_hdac_regmap_init(&codec->core);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 		goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	if (!try_module_get(owner)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 		err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 		goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	patch = (hda_codec_patch_t)codec->preset->driver_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	if (patch) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 		err = patch(codec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 		if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 			goto error_module_put;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	err = snd_hda_codec_build_pcms(codec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 		goto error_module;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	err = snd_hda_codec_build_controls(codec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 		goto error_module;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	/* only register after the bus probe finished; otherwise it's racy */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	if (!codec->bus->bus_probing && codec->card->registered) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 		err = snd_card_register(codec->card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 		if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 			goto error_module;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 		snd_hda_codec_register(codec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	codec->core.lazy_cache = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)  error_module:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	if (codec->patch_ops.free)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 		codec->patch_ops.free(codec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)  error_module_put:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	module_put(owner);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144)  error:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	snd_hda_codec_cleanup_for_unbind(codec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) static int hda_codec_driver_remove(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	struct hda_codec *codec = dev_to_hda_codec(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	if (codec->bus->core.ext_ops) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 		if (WARN_ON(!codec->bus->core.ext_ops->hdev_detach))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 			return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 		return codec->bus->core.ext_ops->hdev_detach(&codec->core);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	if (codec->patch_ops.free)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 		codec->patch_ops.free(codec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	snd_hda_codec_cleanup_for_unbind(codec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	module_put(dev->driver->owner);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) static void hda_codec_driver_shutdown(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	struct hda_codec *codec = dev_to_hda_codec(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	if (!pm_runtime_suspended(dev) && codec->patch_ops.reboot_notify)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 		codec->patch_ops.reboot_notify(codec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) int __hda_codec_driver_register(struct hda_codec_driver *drv, const char *name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 			       struct module *owner)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	drv->core.driver.name = name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	drv->core.driver.owner = owner;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	drv->core.driver.bus = &snd_hda_bus_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	drv->core.driver.probe = hda_codec_driver_probe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	drv->core.driver.remove = hda_codec_driver_remove;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	drv->core.driver.shutdown = hda_codec_driver_shutdown;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	drv->core.driver.pm = &hda_codec_driver_pm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	drv->core.type = HDA_DEV_LEGACY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	drv->core.match = hda_codec_match;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	drv->core.unsol_event = hda_codec_unsol_event;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	return driver_register(&drv->core.driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) EXPORT_SYMBOL_GPL(__hda_codec_driver_register);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) void hda_codec_driver_unregister(struct hda_codec_driver *drv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	driver_unregister(&drv->core.driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) EXPORT_SYMBOL_GPL(hda_codec_driver_unregister);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) static inline bool codec_probed(struct hda_codec *codec)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	return device_attach(hda_codec_dev(codec)) > 0 && codec->preset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) /* try to auto-load codec module */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) static void request_codec_module(struct hda_codec *codec)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) #ifdef MODULE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	char modalias[32];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	const char *mod = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	switch (codec->probe_id) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	case HDA_CODEC_ID_GENERIC_HDMI:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) #if IS_MODULE(CONFIG_SND_HDA_CODEC_HDMI)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 		mod = "snd-hda-codec-hdmi";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	case HDA_CODEC_ID_GENERIC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) #if IS_MODULE(CONFIG_SND_HDA_GENERIC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 		mod = "snd-hda-codec-generic";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 		snd_hdac_codec_modalias(&codec->core, modalias, sizeof(modalias));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 		mod = modalias;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	if (mod)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 		request_module(mod);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) #endif /* MODULE */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) /* try to auto-load and bind the codec module */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) static void codec_bind_module(struct hda_codec *codec)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) #ifdef MODULE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	request_codec_module(codec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	if (codec_probed(codec))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) #if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) /* if all audio out widgets are digital, let's assume the codec as a HDMI/DP */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) static bool is_likely_hdmi_codec(struct hda_codec *codec)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	hda_nid_t nid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	for_each_hda_codec_node(nid, codec) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 		unsigned int wcaps = get_wcaps(codec, nid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 		switch (get_wcaps_type(wcaps)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 		case AC_WID_AUD_IN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 			return false; /* HDMI parser supports only HDMI out */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 		case AC_WID_AUD_OUT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 			if (!(wcaps & AC_WCAP_DIGITAL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 				return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) /* no HDMI codec parser support */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) #define is_likely_hdmi_codec(codec)	false
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) #endif /* CONFIG_SND_HDA_CODEC_HDMI */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) static int codec_bind_generic(struct hda_codec *codec)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 	if (codec->probe_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 	if (is_likely_hdmi_codec(codec)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 		codec->probe_id = HDA_CODEC_ID_GENERIC_HDMI;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 		request_codec_module(codec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 		if (codec_probed(codec))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 			return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 	codec->probe_id = HDA_CODEC_ID_GENERIC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 	request_codec_module(codec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 	if (codec_probed(codec))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 	return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) #if IS_ENABLED(CONFIG_SND_HDA_GENERIC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) #define is_generic_config(codec) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 	(codec->modelname && !strcmp(codec->modelname, "generic"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) #define is_generic_config(codec)	0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292)  * snd_hda_codec_configure - (Re-)configure the HD-audio codec
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293)  * @codec: the HDA codec
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295)  * Start parsing of the given codec tree and (re-)initialize the whole
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296)  * patch instance.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298)  * Returns 0 if successful or a negative error code.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) int snd_hda_codec_configure(struct hda_codec *codec)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 	if (codec->configured)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 	if (is_generic_config(codec))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 		codec->probe_id = HDA_CODEC_ID_GENERIC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 		codec->probe_id = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 	if (!device_is_registered(&codec->core.dev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 		err = snd_hdac_device_register(&codec->core);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 		if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 			return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 	if (!codec->preset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 		codec_bind_module(codec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 	if (!codec->preset) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 		err = codec_bind_generic(codec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 		if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 			codec_dbg(codec, "Unable to bind the codec\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 			return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 	codec->configured = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) EXPORT_SYMBOL_GPL(snd_hda_codec_configure);