[PATCH 13/16] ALSA: hda/tas2781: remove sound controls in unbind

Gergo Koteles
2023-12-07T00:05:21Z

Remove sound controls in hda_unbind to make
module loadable after module unload.

Add a driver specific struct (tas2781_hda) to store
the controls.

Signed-off-by: Gergo Koteles <soyer@irl.hu>
---
sound/pci/hda/tas2781_hda_i2c.c | 234 +++++++++++++++++++-------------
1 file changed, 136 insertions(+), 98 deletions(-)

diff --git a/sound/pci/hda/tas2781_hda_i2c.c b/sound/pci/hda/tas2781_hda_i2c.c
index 290c41194139..0972345c15e5 100644
--- a/sound/pci/hda/tas2781_hda_i2c.c
+++ b/sound/pci/hda/tas2781_hda_i2c.c
@@ -82,6 +82,14 @@ static unsigned int cal_regs[TAS2563_CAL_N] = {
TAS2563_CAL_R0_LOW, TAS2563_CAL_TLIM,
};

+struct tas2781_hda {
+ struct device *dev;
+ struct tasdevice_priv *priv;
+ struct snd_kcontrol *dsp_prog_ctl;
+ struct snd_kcontrol *dsp_conf_ctl;
+ struct snd_kcontrol *prof_ctl;
+ struct snd_kcontrol *snd_ctls[3];
+};

static int tas2781_get_i2c_res(struct acpi_resource *ares, void *data)
{
@@ -143,26 +151,26 @@ static int tas2781_read_acpi(struct tasdevice_priv *p, const char *hid)

static void tas2781_hda_playback_hook(struct device *dev, int action)
{
- struct tasdevice_priv *tas_priv = dev_get_drvdata(dev);
+ struct tas2781_hda *tas_hda = dev_get_drvdata(dev);

- dev_dbg(tas_priv->dev, "%s: action = %d\n", __func__, action);
+ dev_dbg(tas_hda->dev, "%s: action = %d\n", __func__, action);
switch (action) {
case HDA_GEN_PCM_ACT_OPEN:
pm_runtime_get_sync(dev);
- mutex_lock(&tas_priv->codec_lock);
- tasdevice_tuning_switch(tas_priv, 0);
- mutex_unlock(&tas_priv->codec_lock);
+ mutex_lock(&tas_hda->priv->codec_lock);
+ tasdevice_tuning_switch(tas_hda->priv, 0);
+ mutex_unlock(&tas_hda->priv->codec_lock);
break;
case HDA_GEN_PCM_ACT_CLOSE:
- mutex_lock(&tas_priv->codec_lock);
- tasdevice_tuning_switch(tas_priv, 1);
- mutex_unlock(&tas_priv->codec_lock);
+ mutex_lock(&tas_hda->priv->codec_lock);
+ tasdevice_tuning_switch(tas_hda->priv, 1);
+ mutex_unlock(&tas_hda->priv->codec_lock);

pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
break;
default:
- dev_dbg(tas_priv->dev, "Playback action not supported: %d\n",
+ dev_dbg(tas_hda->dev, "Playback action not supported: %d\n",
action);
break;
}
@@ -556,9 +564,28 @@ static int load_calibration_efi_1(struct tasdevice_priv *tas_priv)
return 0;
}

+static void tas2781_hda_remove_controls(struct tas2781_hda *tas_hda)
+{
+ struct hda_codec *codec = tas_hda->priv->codec;
+
+ if (tas_hda->dsp_prog_ctl)
+ snd_ctl_remove(codec->card, tas_hda->dsp_prog_ctl);
+
+ if (tas_hda->dsp_conf_ctl)
+ snd_ctl_remove(codec->card, tas_hda->dsp_conf_ctl);
+
+ for (int i = ARRAY_SIZE(tas_hda->snd_ctls) - 1; i >= 0; i--)
+ if (tas_hda->snd_ctls[i])
+ snd_ctl_remove(codec->card, tas_hda->snd_ctls[i]);
+
+ if (tas_hda->prof_ctl)
+ snd_ctl_remove(codec->card, tas_hda->prof_ctl);
+}
+
static void tasdev_fw_ready(const struct firmware *fmw, void *context)
{
struct tasdevice_priv *tas_priv = context;
+ struct tas2781_hda *tas_hda = dev_get_drvdata(tas_priv->dev);
struct hda_codec *codec = tas_priv->codec;
int i, ret;

@@ -569,8 +596,8 @@ static void tasdev_fw_ready(const struct firmware *fmw, void *context)
if (ret)
goto out;

- ret = snd_ctl_add(codec->card,
- snd_ctl_new1(&tas2781_prof_ctrl, tas_priv));
+ tas_hda->prof_ctl = snd_ctl_new1(&tas2781_prof_ctrl, tas_priv);
+ ret = snd_ctl_add(codec->card, tas_hda->prof_ctl);
if (ret) {
dev_err(tas_priv->dev,
"Failed to add KControl %s = %d\n",
@@ -579,8 +606,9 @@ static void tasdev_fw_ready(const struct firmware *fmw, void *context)
}

for (i = 0; i < ARRAY_SIZE(tas2781_snd_controls); i++) {
- ret = snd_ctl_add(codec->card,
- snd_ctl_new1(&tas2781_snd_controls[i], tas_priv));
+ tas_hda->snd_ctls[i] = snd_ctl_new1(&tas2781_snd_controls[i],
+ tas_priv);
+ ret = snd_ctl_add(codec->card, tas_hda->snd_ctls[i]);
if (ret) {
dev_err(tas_priv->dev,
"Failed to add KControl %s = %d\n",
@@ -602,8 +630,9 @@ static void tasdev_fw_ready(const struct firmware *fmw, void *context)
goto out;
}

- ret = snd_ctl_add(codec->card,
- snd_ctl_new1(&tas2781_dsp_prog_ctrl, tas_priv));
+ tas_hda->dsp_prog_ctl = snd_ctl_new1(&tas2781_dsp_prog_ctrl,
+ tas_priv);
+ ret = snd_ctl_add(codec->card, tas_hda->dsp_prog_ctl);
if (ret) {
dev_err(tas_priv->dev,
"Failed to add KControl %s = %d\n",
@@ -611,8 +640,9 @@ static void tasdev_fw_ready(const struct firmware *fmw, void *context)
goto out;
}

- ret = snd_ctl_add(codec->card,
- snd_ctl_new1(&tas2781_dsp_conf_ctrl, tas_priv));
+ tas_hda->dsp_conf_ctl = snd_ctl_new1(&tas2781_dsp_conf_ctrl,
+ tas_priv);
+ ret = snd_ctl_add(codec->card, tas_hda->dsp_conf_ctl);
if (ret) {
dev_err(tas_priv->dev,
"Failed to add KControl %s = %d\n",
@@ -635,27 +665,27 @@ static void tasdev_fw_ready(const struct firmware *fmw, void *context)
tasdevice_config_info_remove(tas_priv);
tasdevice_dsp_remove(tas_priv);
}
- mutex_unlock(&tas_priv->codec_lock);
+ mutex_unlock(&tas_hda->priv->codec_lock);
if (fmw)
release_firmware(fmw);
- pm_runtime_mark_last_busy(tas_priv->dev);
- pm_runtime_put_autosuspend(tas_priv->dev);
+ pm_runtime_mark_last_busy(tas_hda->dev);
+ pm_runtime_put_autosuspend(tas_hda->dev);
}

static int tas2781_hda_bind(struct device *dev, struct device *master,
void *master_data)
{
- struct tasdevice_priv *tas_priv = dev_get_drvdata(dev);
+ struct tas2781_hda *tas_hda = dev_get_drvdata(dev);
struct hda_component *comps = master_data;
struct hda_codec *codec;
unsigned int subid;
int ret;

- if (!comps || tas_priv->index < 0 ||
- tas_priv->index >= HDA_MAX_COMPONENTS)
+ if (!comps || tas_hda->priv->index < 0 ||
+ tas_hda->priv->index >= HDA_MAX_COMPONENTS)
return -EINVAL;

- comps = &comps[tas_priv->index];
+ comps = &comps[tas_hda->priv->index];
if (comps->dev)
return -EBUSY;

@@ -664,10 +694,10 @@ static int tas2781_hda_bind(struct device *dev, struct device *master,

switch (subid) {
case 0x17aa:
- tas_priv->catlog_id = LENOVO;
+ tas_hda->priv->catlog_id = LENOVO;
break;
default:
- tas_priv->catlog_id = OTHERS;
+ tas_hda->priv->catlog_id = OTHERS;
break;
}

@@ -677,7 +707,7 @@ static int tas2781_hda_bind(struct device *dev, struct device *master,

strscpy(comps->name, dev_name(dev), sizeof(comps->name));

- ret = tascodec_init(tas_priv, codec, tasdev_fw_ready);
+ ret = tascodec_init(tas_hda->priv, codec, tasdev_fw_ready);
if (!ret)
comps->playback_hook = tas2781_hda_playback_hook;

@@ -690,19 +720,21 @@ static int tas2781_hda_bind(struct device *dev, struct device *master,
static void tas2781_hda_unbind(struct device *dev,
struct device *master, void *master_data)
{
- struct tasdevice_priv *tas_priv = dev_get_drvdata(dev);
+ struct tas2781_hda *tas_hda = dev_get_drvdata(dev);
struct hda_component *comps = master_data;

- if (comps[tas_priv->index].dev == dev) {
- comps[tas_priv->index].dev = NULL;
+ if (comps[tas_hda->priv->index].dev == dev) {
+ comps[tas_hda->priv->index].dev = NULL;
strscpy(comps->name, "", sizeof(comps->name));
- comps[tas_priv->index].playback_hook = NULL;
+ comps[tas_hda->priv->index].playback_hook = NULL;
}

- tasdevice_config_info_remove(tas_priv);
- tasdevice_dsp_remove(tas_priv);
+ tas2781_hda_remove_controls(tas_hda);

- tas_priv->fw_state = TASDEVICE_DSP_FW_PENDING;
+ tasdevice_config_info_remove(tas_hda->priv);
+ tasdevice_dsp_remove(tas_hda->priv);
+
+ tas_hda->priv->fw_state = TASDEVICE_DSP_FW_PENDING;
}

static const struct component_ops tas2781_hda_comp_ops = {
@@ -712,70 +744,75 @@ static const struct component_ops tas2781_hda_comp_ops = {

static void tas2781_hda_remove(struct device *dev)
{
- struct tasdevice_priv *tas_priv = dev_get_drvdata(dev);
+ struct tas2781_hda *tas_hda = dev_get_drvdata(dev);

- pm_runtime_get_sync(tas_priv->dev);
- pm_runtime_disable(tas_priv->dev);
+ pm_runtime_get_sync(tas_hda->dev);
+ pm_runtime_disable(tas_hda->dev);

- component_del(tas_priv->dev, &tas2781_hda_comp_ops);
+ component_del(tas_hda->dev, &tas2781_hda_comp_ops);

- pm_runtime_put_noidle(tas_priv->dev);
+ pm_runtime_put_noidle(tas_hda->dev);

- tasdevice_remove(tas_priv);
+ tasdevice_remove(tas_hda->priv);
}

static int tas2781_hda_i2c_probe(struct i2c_client *clt)
{
- struct tasdevice_priv *tas_priv;
+ struct tas2781_hda *tas_hda;
const char *device_name;
int ret;

- tas_priv = tasdevice_kzalloc(clt);
- if (!tas_priv)
+ tas_hda = devm_kzalloc(&clt->dev, sizeof(*tas_hda), GFP_KERNEL);
+ if (!tas_hda)
return -ENOMEM;

- dev_set_drvdata(&clt->dev, tas_priv);
+ dev_set_drvdata(&clt->dev, tas_hda);
+ tas_hda->dev = &clt->dev;
+
+ tas_hda->priv = tasdevice_kzalloc(clt);
+ if (!tas_hda->priv)
+ return -ENOMEM;

- if (strstr(dev_name(&clt->dev), "TIAS2781")) {
+ if (strstr(dev_name(tas_hda->dev), "TIAS2781")) {
device_name = "TIAS2781";
- tas_priv->load_calibration = load_calibration_efi_1;
- tas_priv->apply_calibration = tas2781_apply_calibration;
- tas_priv->global_addr = TAS2781_GLOBAL_ADDR;
- } else if (strstr(dev_name(&clt->dev), "INT8866")) {
+ tas_hda->priv->load_calibration = load_calibration_efi_1;
+ tas_hda->priv->apply_calibration = tas2781_apply_calibration;
+ tas_hda->priv->global_addr = TAS2781_GLOBAL_ADDR;
+ } else if (strstr(dev_name(tas_hda->dev), "INT8866")) {
device_name = "INT8866";
- tas_priv->load_calibration = load_calibration_efi_2;
- tas_priv->apply_calibration = tas2563_apply_calibration;
- tas_priv->global_addr = TAS2563_GLOBAL_ADDR;
+ tas_hda->priv->load_calibration = load_calibration_efi_2;
+ tas_hda->priv->apply_calibration = tas2563_apply_calibration;
+ tas_hda->priv->global_addr = TAS2563_GLOBAL_ADDR;
} else
return -ENODEV;

- tas_priv->irq_info.irq = clt->irq;
- ret = tas2781_read_acpi(tas_priv, device_name);
+ tas_hda->priv->irq_info.irq = clt->irq;
+ ret = tas2781_read_acpi(tas_hda->priv, device_name);
if (ret)
- return dev_err_probe(tas_priv->dev, ret,
+ return dev_err_probe(tas_hda->dev, ret,
"Platform not supported\n");

- ret = tasdevice_init(tas_priv);
+ ret = tasdevice_init(tas_hda->priv);
if (ret)
goto err;

- pm_runtime_set_autosuspend_delay(tas_priv->dev, 3000);
- pm_runtime_use_autosuspend(tas_priv->dev);
- pm_runtime_mark_last_busy(tas_priv->dev);
- pm_runtime_set_active(tas_priv->dev);
- pm_runtime_get_noresume(tas_priv->dev);
- pm_runtime_enable(tas_priv->dev);
+ pm_runtime_set_autosuspend_delay(tas_hda->dev, 3000);
+ pm_runtime_use_autosuspend(tas_hda->dev);
+ pm_runtime_mark_last_busy(tas_hda->dev);
+ pm_runtime_set_active(tas_hda->dev);
+ pm_runtime_get_noresume(tas_hda->dev);
+ pm_runtime_enable(tas_hda->dev);

- pm_runtime_put_autosuspend(tas_priv->dev);
+ pm_runtime_put_autosuspend(tas_hda->dev);

- ret = component_add(tas_priv->dev, &tas2781_hda_comp_ops);
+ ret = component_add(tas_hda->dev, &tas2781_hda_comp_ops);
if (ret) {
- dev_err(tas_priv->dev, "Register component failed: %d\n", ret);
- pm_runtime_disable(tas_priv->dev);
+ dev_err(tas_hda->dev, "Register component failed: %d\n", ret);
+ pm_runtime_disable(tas_hda->dev);
goto err;
}

- tas2781_reset(tas_priv);
+ tas2781_reset(tas_hda->priv);
err:
if (ret)
tas2781_hda_remove(&clt->dev);
@@ -789,63 +826,64 @@ static void tas2781_hda_i2c_remove(struct i2c_client *clt)

static int tas2781_runtime_suspend(struct device *dev)
{
- struct tasdevice_priv *tas_priv = dev_get_drvdata(dev);
+ struct tas2781_hda *tas_hda = dev_get_drvdata(dev);
int i;

- dev_dbg(tas_priv->dev, "Runtime Suspend\n");
+ dev_info(tas_hda->dev, "Runtime Suspend\n");

- mutex_lock(&tas_priv->codec_lock);
+ mutex_lock(&tas_hda->priv->codec_lock);

- if (tas_priv->playback_started) {
- tasdevice_tuning_switch(tas_priv, 1);
- tas_priv->playback_started = false;
+ if (tas_hda->priv->playback_started) {
+ tasdevice_tuning_switch(tas_hda->priv, 1);
+ tas_hda->priv->playback_started = false;
}

- for (i = 0; i < tas_priv->ndev; i++) {
- tas_priv->tasdevice[i].cur_book = -1;
- tas_priv->tasdevice[i].cur_prog = -1;
- tas_priv->tasdevice[i].cur_conf = -1;
+ for (i = 0; i < tas_hda->priv->ndev; i++) {
+ tas_hda->priv->tasdevice[i].cur_book = -1;
+ tas_hda->priv->tasdevice[i].cur_prog = -1;
+ tas_hda->priv->tasdevice[i].cur_conf = -1;
}

- mutex_unlock(&tas_priv->codec_lock);
+ mutex_unlock(&tas_hda->priv->codec_lock);

return 0;
}

static int tas2781_runtime_resume(struct device *dev)
{
- struct tasdevice_priv *tas_priv = dev_get_drvdata(dev);
+ struct tas2781_hda *tas_hda = dev_get_drvdata(dev);

- dev_dbg(tas_priv->dev, "Runtime Resume\n");
+ dev_dbg(tas_hda->dev, "Runtime Resume\n");

- mutex_lock(&tas_priv->codec_lock);
+ mutex_lock(&tas_hda->priv->codec_lock);

- tasdevice_prmg_load(tas_priv, tas_priv->cur_prog);
+ tasdevice_prmg_load(tas_hda->priv, tas_hda->priv->cur_prog);

/* If calibrated data occurs error, dsp will still works with default
* calibrated data inside algo.
*/
- tasdevice_apply_calibration(tas_priv);
+ tasdevice_apply_calibration(tas_hda->priv);

- mutex_unlock(&tas_priv->codec_lock);
+out:
+ mutex_unlock(&tas_hda->priv->codec_lock);

return 0;
}

static int tas2781_system_suspend(struct device *dev)
{
- struct tasdevice_priv *tas_priv = dev_get_drvdata(dev);
+ struct tas2781_hda *tas_hda = dev_get_drvdata(dev);
int ret;

- dev_dbg(tas_priv->dev, "System Suspend\n");
+ dev_dbg(tas_hda->priv->dev, "System Suspend\n");

ret = pm_runtime_force_suspend(dev);
if (ret)
return ret;

/* Shutdown chip before system suspend */
- tasdevice_tuning_switch(tas_priv, 1);
+ tasdevice_tuning_switch(tas_hda->priv, 1);

/*
* Reset GPIO may be shared, so cannot reset here.
@@ -856,30 +894,30 @@ static int tas2781_system_suspend(struct device *dev)

static int tas2781_system_resume(struct device *dev)
{
- struct tasdevice_priv *tas_priv = dev_get_drvdata(dev);
+ struct tas2781_hda *tas_hda = dev_get_drvdata(dev);
int i, ret;

- dev_dbg(tas_priv->dev, "System Resume\n");
+ dev_info(tas_hda->priv->dev, "System Resume\n");

ret = pm_runtime_force_resume(dev);
if (ret)
return ret;

- mutex_lock(&tas_priv->codec_lock);
+ mutex_lock(&tas_hda->priv->codec_lock);

- for (i = 0; i < tas_priv->ndev; i++) {
- tas_priv->tasdevice[i].cur_book = -1;
- tas_priv->tasdevice[i].cur_prog = -1;
- tas_priv->tasdevice[i].cur_conf = -1;
+ for (i = 0; i < tas_hda->priv->ndev; i++) {
+ tas_hda->priv->tasdevice[i].cur_book = -1;
+ tas_hda->priv->tasdevice[i].cur_prog = -1;
+ tas_hda->priv->tasdevice[i].cur_conf = -1;
}
- tas2781_reset(tas_priv);
- tasdevice_prmg_load(tas_priv, tas_priv->cur_prog);
+ tas2781_reset(tas_hda->priv);
+ tasdevice_prmg_load(tas_hda->priv, tas_hda->priv->cur_prog);

/* If calibrated data occurs error, dsp will still work with default
* calibrated data inside algo.
*/
- tasdevice_apply_calibration(tas_priv);
- mutex_unlock(&tas_priv->codec_lock);
+ tasdevice_apply_calibration(tas_hda->priv);
+ mutex_unlock(&tas_hda->priv->codec_lock);

return 0;
}
--
2.43.0