diff --git a/drivers/remoteproc/qcom_q6v5_pas.c b/drivers/remoteproc/qcom_q6v5_pas.c
index cdd8a1a3ca59..ed05593c0adf 100644
--- a/drivers/remoteproc/qcom_q6v5_pas.c
+++ b/drivers/remoteproc/qcom_q6v5_pas.c
@@ -48,6 +48,8 @@ struct adsp_data {
 	const char *ssr_name;
 	const char *sysmon_name;
 	int ssctl_id;
+
+	int region_assign_idx;
 };
 
 struct qcom_adsp {
@@ -84,10 +86,15 @@ struct qcom_adsp {
 	phys_addr_t dtb_mem_phys;
 	phys_addr_t mem_reloc;
 	phys_addr_t dtb_mem_reloc;
+	phys_addr_t region_assign_phys;
 	void *mem_region;
 	void *dtb_mem_region;
 	size_t mem_size;
 	size_t dtb_mem_size;
+	size_t region_assign_size;
+
+	int region_assign_idx;
+	int region_assign_perms;
 
 	struct qcom_rproc_glink glink_subdev;
 	struct qcom_rproc_subdev smd_subdev;
@@ -557,6 +564,64 @@ static int adsp_alloc_memory_region(struct qcom_adsp *adsp)
 	return 0;
 }
 
+static int adsp_assign_memory_region(struct qcom_adsp *adsp)
+{
+	struct qcom_scm_vmperm perm;
+	struct device_node *node;
+	struct resource r;
+	int ret;
+
+	if (!adsp->region_assign_idx)
+		return 0;
+
+	node = of_parse_phandle(adsp->dev->of_node, "memory-region", adsp->region_assign_idx);
+	if (!node) {
+		dev_err(adsp->dev, "missing shareable memory-region\n");
+		return -EINVAL;
+	}
+
+	ret = of_address_to_resource(node, 0, &r);
+	if (ret)
+		return ret;
+
+	perm.vmid = QCOM_SCM_VMID_MSS_MSA;
+	perm.perm = QCOM_SCM_PERM_RW;
+
+	adsp->region_assign_phys = r.start;
+	adsp->region_assign_size = resource_size(&r);
+	adsp->region_assign_perms = BIT(QCOM_SCM_VMID_HLOS);
+
+	ret = qcom_scm_assign_mem(adsp->region_assign_phys,
+				  adsp->region_assign_size,
+				  &adsp->region_assign_perms,
+				  &perm, 1);
+	if (ret < 0) {
+		dev_err(adsp->dev, "assign memory failed\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static void adsp_unassign_memory_region(struct qcom_adsp *adsp)
+{
+	struct qcom_scm_vmperm perm;
+	int ret;
+
+	if (!adsp->region_assign_idx)
+		return;
+
+	perm.vmid = QCOM_SCM_VMID_HLOS;
+	perm.perm = QCOM_SCM_PERM_RW;
+
+	ret = qcom_scm_assign_mem(adsp->region_assign_phys,
+				  adsp->region_assign_size,
+				  &adsp->region_assign_perms,
+				  &perm, 1);
+	if (ret < 0)
+		dev_err(adsp->dev, "unassign memory failed\n");
+}
+
 static int adsp_probe(struct platform_device *pdev)
 {
 	const struct adsp_data *desc;
@@ -607,6 +672,7 @@ static int adsp_probe(struct platform_device *pdev)
 	adsp->pas_id = desc->pas_id;
 	adsp->info_name = desc->sysmon_name;
 	adsp->decrypt_shutdown = desc->decrypt_shutdown;
+	adsp->region_assign_idx = desc->region_assign_idx;
 	if (dtb_fw_name) {
 		adsp->dtb_firmware_name = dtb_fw_name;
 		adsp->dtb_pas_id = desc->dtb_pas_id;
@@ -621,6 +687,10 @@ static int adsp_probe(struct platform_device *pdev)
 	if (ret)
 		goto free_rproc;
 
+	ret = adsp_assign_memory_region(adsp);
+	if (ret)
+		goto free_rproc;
+
 	ret = adsp_init_clock(adsp);
 	if (ret)
 		goto free_rproc;
@@ -673,6 +743,7 @@ static int adsp_remove(struct platform_device *pdev)
 	rproc_del(adsp->rproc);
 
 	qcom_q6v5_deinit(&adsp->q6v5);
+	adsp_unassign_memory_region(adsp);
 	qcom_remove_glink_subdev(adsp->rproc, &adsp->glink_subdev);
 	qcom_remove_sysmon_subdev(adsp->sysmon);
 	qcom_remove_smd_subdev(adsp->rproc, &adsp->smd_subdev);