@@ -310,9 +310,12 @@ snd_hda_codec_device_init(struct hda_bus *bus, unsigned int codec_addr,
int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card,
unsigned int codec_addr, struct hda_codec **codecp);
int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card,
- unsigned int codec_addr, struct hda_codec *codec);
+ unsigned int codec_addr, struct hda_codec *codec,
+ bool snddev_managed);
int snd_hda_codec_configure(struct hda_codec *codec);
int snd_hda_codec_update_widgets(struct hda_codec *codec);
+void snd_hda_codec_register(struct hda_codec *codec);
+void snd_hda_codec_unregister(struct hda_codec *codec);
/*
* low level functions
@@ -805,7 +805,12 @@ void snd_hda_codec_display_power(struct hda_codec *codec, bool enable)
snd_hdac_display_power(&codec->bus->core, codec->addr, enable);
}
-/* also called from hda_bind.c */
+/**
+ * snd_hda_codec_register - Finalize codec initialization
+ * @codec: codec device to register
+ *
+ * Also called from hda_bind.c
+ */
void snd_hda_codec_register(struct hda_codec *codec)
{
if (codec->registered)
@@ -818,6 +823,7 @@ void snd_hda_codec_register(struct hda_codec *codec)
codec->registered = 1;
}
}
+EXPORT_SYMBOL_GPL(snd_hda_codec_register);
static int snd_hda_codec_dev_register(struct snd_device *device)
{
@@ -825,10 +831,12 @@ static int snd_hda_codec_dev_register(struct snd_device *device)
return 0;
}
-static int snd_hda_codec_dev_free(struct snd_device *device)
+/**
+ * snd_hda_codec_unregister - Unregister specified codec device
+ * @codec: codec device to unregister
+ */
+void snd_hda_codec_unregister(struct hda_codec *codec)
{
- struct hda_codec *codec = device->device_data;
-
codec->in_freeing = 1;
/*
* snd_hda_codec_device_new() is used by legacy HDA and ASoC driver.
@@ -845,7 +853,12 @@ static int snd_hda_codec_dev_free(struct snd_device *device)
*/
if (codec->core.type == HDA_DEV_LEGACY)
put_device(hda_codec_dev(codec));
+}
+EXPORT_SYMBOL_GPL(snd_hda_codec_unregister);
+static int snd_hda_codec_dev_free(struct snd_device *device)
+{
+ snd_hda_codec_unregister(device->device_data);
return 0;
}
@@ -932,12 +945,13 @@ int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card,
return PTR_ERR(codec);
*codecp = codec;
- return snd_hda_codec_device_new(bus, card, codec_addr, *codecp);
+ return snd_hda_codec_device_new(bus, card, codec_addr, *codecp, false);
}
EXPORT_SYMBOL_GPL(snd_hda_codec_new);
int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card,
- unsigned int codec_addr, struct hda_codec *codec)
+ unsigned int codec_addr, struct hda_codec *codec,
+ bool snddev_managed)
{
char component[31];
hda_nid_t fg;
@@ -1011,9 +1025,12 @@ int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card,
codec->core.subsystem_id, codec->core.revision_id);
snd_component_add(card, component);
- err = snd_device_new(card, SNDRV_DEV_CODEC, codec, &dev_ops);
- if (err < 0)
- goto error;
+ if (snddev_managed) {
+ /* ASoC features component management instead */
+ err = snd_device_new(card, SNDRV_DEV_CODEC, codec, &dev_ops);
+ if (err < 0)
+ goto error;
+ }
/* PM runtime needs to be enabled later after binding codec */
pm_runtime_forbid(&codec->core.dev);
@@ -135,7 +135,6 @@ int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
#define snd_hda_add_vmaster(codec, name, tlv, followers, suffix, access) \
__snd_hda_add_vmaster(codec, name, tlv, followers, suffix, true, access, NULL)
int snd_hda_codec_reset(struct hda_codec *codec);
-void snd_hda_codec_register(struct hda_codec *codec);
void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec);
#define snd_hda_regmap_sync(codec) snd_hdac_regmap_sync(&(codec)->core)
@@ -413,7 +413,7 @@ static int hdac_hda_codec_probe(struct snd_soc_component *component)
HDA_CODEC_IDX_CONTROLLER, true);
ret = snd_hda_codec_device_new(hcodec->bus, component->card->snd_card,
- hdev->addr, hcodec);
+ hdev->addr, hcodec, true);
if (ret < 0) {
dev_err(&hdev->dev, "failed to create hda codec %d\n", ret);
goto error_no_pm;
With few changes, snd_hda_codec_register() and its unregister-counterpart can be re-used by ASoC drivers. While at it, provide kernel doc for the exposed functions. Due to ALSA-device vs ASoC-component organization differences, new 'snddev_managed' argument is specified allowing for better control over codec registration process. Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com> --- include/sound/hda_codec.h | 5 ++++- sound/pci/hda/hda_codec.c | 35 ++++++++++++++++++++++++++--------- sound/pci/hda/hda_local.h | 1 - sound/soc/codecs/hdac_hda.c | 2 +- 4 files changed, 31 insertions(+), 12 deletions(-)