ASoC: SOF: control: Extend the optionality of IPC ops to IPC as well

The IPC ops are optional, but they require that the ops struct is to be
allocated with all callbacks set to NULL.

Update the code to extend the optionality to:
sdev->ipc == NULL
sdev->ipc->ops == NULL
sdev->ipc->ops->[tplg] == NULL
sdev->ipc->ops->[tplg]->control == NULL
sdev->ipc->ops->[tplg]->control->ops == NULL (treated optional currently)
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Link: https://lore.kernel.org/r/20221221102328.9635-6-peter.ujfalusi@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/control.c

@@ -22,9 +22,9 @@ int snd_sof_volume_get(struct snd_kcontrol *kcontrol,
 	struct snd_sof_control *scontrol = sm->dobj.private;
 	struct snd_soc_component *scomp = scontrol->scomp;
 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
-	const struct sof_ipc_tplg_ops *tplg_ops = sdev->ipc->ops->tplg;
+	const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
 
-	if (tplg_ops->control->volume_get)
+	if (tplg_ops && tplg_ops->control && tplg_ops->control->volume_get)
 		return tplg_ops->control->volume_get(scontrol, ucontrol);
 
 	return 0;
@@ -37,9 +37,9 @@ int snd_sof_volume_put(struct snd_kcontrol *kcontrol,
 	struct snd_sof_control *scontrol = sm->dobj.private;
 	struct snd_soc_component *scomp = scontrol->scomp;
 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
-	const struct sof_ipc_tplg_ops *tplg_ops = sdev->ipc->ops->tplg;
+	const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
 
-	if (tplg_ops->control->volume_put)
+	if (tplg_ops && tplg_ops->control && tplg_ops->control->volume_put)
 		return tplg_ops->control->volume_put(scontrol, ucontrol);
 
 	return false;
@@ -74,9 +74,9 @@ int snd_sof_switch_get(struct snd_kcontrol *kcontrol,
 	struct snd_sof_control *scontrol = sm->dobj.private;
 	struct snd_soc_component *scomp = scontrol->scomp;
 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
-	const struct sof_ipc_tplg_ops *tplg_ops = sdev->ipc->ops->tplg;
+	const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
 
-	if (tplg_ops->control->switch_get)
+	if (tplg_ops && tplg_ops->control && tplg_ops->control->switch_get)
 		return tplg_ops->control->switch_get(scontrol, ucontrol);
 
 	return 0;
@@ -89,9 +89,9 @@ int snd_sof_switch_put(struct snd_kcontrol *kcontrol,
 	struct snd_sof_control *scontrol = sm->dobj.private;
 	struct snd_soc_component *scomp = scontrol->scomp;
 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
-	const struct sof_ipc_tplg_ops *tplg_ops = sdev->ipc->ops->tplg;
+	const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
 
-	if (tplg_ops->control->switch_put)
+	if (tplg_ops && tplg_ops->control && tplg_ops->control->switch_put)
 		return tplg_ops->control->switch_put(scontrol, ucontrol);
 
 	return false;
@@ -104,9 +104,9 @@ int snd_sof_enum_get(struct snd_kcontrol *kcontrol,
 	struct snd_sof_control *scontrol = se->dobj.private;
 	struct snd_soc_component *scomp = scontrol->scomp;
 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
-	const struct sof_ipc_tplg_ops *tplg_ops = sdev->ipc->ops->tplg;
+	const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
 
-	if (tplg_ops->control->enum_get)
+	if (tplg_ops && tplg_ops->control && tplg_ops->control->enum_get)
 		return tplg_ops->control->enum_get(scontrol, ucontrol);
 
 	return 0;
@@ -119,9 +119,9 @@ int snd_sof_enum_put(struct snd_kcontrol *kcontrol,
 	struct snd_sof_control *scontrol = se->dobj.private;
 	struct snd_soc_component *scomp = scontrol->scomp;
 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
-	const struct sof_ipc_tplg_ops *tplg_ops = sdev->ipc->ops->tplg;
+	const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
 
-	if (tplg_ops->control->enum_put)
+	if (tplg_ops && tplg_ops->control && tplg_ops->control->enum_put)
 		return tplg_ops->control->enum_put(scontrol, ucontrol);
 
 	return false;
@@ -134,9 +134,9 @@ int snd_sof_bytes_get(struct snd_kcontrol *kcontrol,
 	struct snd_sof_control *scontrol = be->dobj.private;
 	struct snd_soc_component *scomp = scontrol->scomp;
 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
-	const struct sof_ipc_tplg_ops *tplg_ops = sdev->ipc->ops->tplg;
+	const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
 
-	if (tplg_ops->control->bytes_get)
+	if (tplg_ops && tplg_ops->control && tplg_ops->control->bytes_get)
 		return tplg_ops->control->bytes_get(scontrol, ucontrol);
 
 	return 0;
@@ -149,9 +149,9 @@ int snd_sof_bytes_put(struct snd_kcontrol *kcontrol,
 	struct snd_sof_control *scontrol = be->dobj.private;
 	struct snd_soc_component *scomp = scontrol->scomp;
 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
-	const struct sof_ipc_tplg_ops *tplg_ops = sdev->ipc->ops->tplg;
+	const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
 
-	if (tplg_ops->control->bytes_put)
+	if (tplg_ops && tplg_ops->control && tplg_ops->control->bytes_put)
 		return tplg_ops->control->bytes_put(scontrol, ucontrol);
 
 	return 0;
@@ -165,13 +165,13 @@ int snd_sof_bytes_ext_put(struct snd_kcontrol *kcontrol,
 	struct snd_sof_control *scontrol = be->dobj.private;
 	struct snd_soc_component *scomp = scontrol->scomp;
 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
-	const struct sof_ipc_tplg_ops *tplg_ops = sdev->ipc->ops->tplg;
+	const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
 
 	/* make sure we have at least a header */
 	if (size < sizeof(struct snd_ctl_tlv))
 		return -EINVAL;
 
-	if (tplg_ops->control->bytes_ext_put)
+	if (tplg_ops && tplg_ops->control && tplg_ops->control->bytes_ext_put)
 		return tplg_ops->control->bytes_ext_put(scontrol, binary_data, size);
 
 	return 0;
@@ -184,7 +184,7 @@ int snd_sof_bytes_ext_volatile_get(struct snd_kcontrol *kcontrol, unsigned int _
 	struct snd_sof_control *scontrol = be->dobj.private;
 	struct snd_soc_component *scomp = scontrol->scomp;
 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
-	const struct sof_ipc_tplg_ops *tplg_ops = sdev->ipc->ops->tplg;
+	const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
 	int ret, err;
 
 	ret = pm_runtime_resume_and_get(scomp->dev);
@@ -193,7 +193,7 @@ int snd_sof_bytes_ext_volatile_get(struct snd_kcontrol *kcontrol, unsigned int _
 		return ret;
 	}
 
-	if (tplg_ops->control->bytes_ext_volatile_get)
+	if (tplg_ops && tplg_ops->control && tplg_ops->control->bytes_ext_volatile_get)
 		ret = tplg_ops->control->bytes_ext_volatile_get(scontrol, binary_data, size);
 
 	pm_runtime_mark_last_busy(scomp->dev);
@@ -212,9 +212,9 @@ int snd_sof_bytes_ext_get(struct snd_kcontrol *kcontrol,
 	struct snd_sof_control *scontrol = be->dobj.private;
 	struct snd_soc_component *scomp = scontrol->scomp;
 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
-	const struct sof_ipc_tplg_ops *tplg_ops = sdev->ipc->ops->tplg;
+	const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
 
-	if (tplg_ops->control->bytes_ext_get)
+	if (tplg_ops && tplg_ops->control && tplg_ops->control->bytes_ext_get)
 		return tplg_ops->control->bytes_ext_get(scontrol, binary_data, size);
 
 	return 0;