ASoC: SOF: ipc4-loader: get max pipeline number

Get max pipeline number from firmware configuration.
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20221108002910.2819709-3-yung-chuan.liao@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/ipc4-loader.c

@@ -383,6 +383,17 @@ int sof_ipc4_query_fw_configuration(struct snd_sof_dev *sdev)
 			if (!ipc4_data->max_libs_count)
 				ipc4_data->max_libs_count = 1;
 			break;
+		case SOF_IPC4_FW_CFG_MAX_PPL_COUNT:
+			ipc4_data->max_num_pipelines = *tuple->value;
+			trace_sof_ipc4_fw_config(sdev, "Max PPL count %d",
+						 ipc4_data->max_num_pipelines);
+			if (ipc4_data->max_num_pipelines <= 0) {
+				dev_err(sdev->dev, "Invalid max_num_pipelines %d",
+					ipc4_data->max_num_pipelines);
+				ret = -EINVAL;
+				goto out;
+			}
+			break;
 		default:
 			break;
 		}

sound/soc/sof/ipc4-priv.h

@@ -65,6 +65,7 @@ struct sof_ipc4_fw_library {
  * @nhlt: NHLT table either from the BIOS or the topology manifest
  * @mtrace_type: mtrace type supported on the booted platform
  * @mtrace_log_bytes: log bytes as reported by the firmware via fw_config reply
+ * @max_num_pipelines: max number of pipelines
  * @max_libs_count: Maximum number of libraries support by the FW including the
  *		    base firmware
  *
@@ -76,6 +77,7 @@ struct sof_ipc4_fw_data {
 	void *nhlt;
 	enum sof_ipc4_mtrace_type mtrace_type;
 	u32 mtrace_log_bytes;
+	int max_num_pipelines;
 	u32 max_libs_count;
 
 	int (*load_library)(struct snd_sof_dev *sdev,