ASoC: SOF: amd: wire signed firmware load callback for ACP7x via ACPI

Read ACPI property acp-sof-signed-firmware-image in sof_acp7x_ops_init()
and register acp_sof_load_signed_firmware as the load_firmware callback
only when the property is set.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>

Author: vijendarmukunda

sound/soc/sof/amd/acp7x.c

@@ -149,6 +149,7 @@ int sof_acp7x_ops_init(struct snd_sof_dev *sdev)
 {
 	struct pci_dev *pci = to_pci_dev(sdev->dev);
 	const union acpi_object *obj;
+	int acp_sof_signed_firmware_image = 0;
 	int acp_sof_post_fw_run_delay = 0;
 
 	/* common defaults */
@@ -159,6 +160,13 @@ int sof_acp7x_ops_init(struct snd_sof_dev *sdev)
 	sof_acp7x_ops.probe = amd_sof_acp7x_probe;
 	sof_acp7x_ops.remove = amd_sof_acp7x_remove;
 
+	if (!acpi_dev_get_property(ACPI_COMPANION(&pci->dev), "acp-sof-signed-firmware-image",
+				   ACPI_TYPE_INTEGER, &obj))
+		acp_sof_signed_firmware_image = obj->integer.value;
+
+	if (acp_sof_signed_firmware_image)
+		sof_acp7x_ops.load_firmware = acp_sof_load_signed_firmware;
+
 	if (!acpi_dev_get_property(ACPI_COMPANION(&pci->dev), "acp-sof-post_fw_run_delay",
 				   ACPI_TYPE_INTEGER, &obj))
 		acp_sof_post_fw_run_delay = obj->integer.value;