# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: "http://devicetree.org/schemas/soc/qcom/qcom,tee-shared-memory-bridge.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"

title: Qualcomm Technologies, Inc. Trusted execution environment shared memory bridge binding

maintainers:
  - Anmolpreet Kaur <quic_anmolpre@quicinc.com>

description: |

QTEE shared memory bridge driver is used to share memory between non-secure
world and trustzone through shared memory bridge.

properties:
  compatible:
    items:
      - const: qcom,tee-shared-memory-bridge

  qcom,custom-bridge-size : indicates the size of SHM Bridge to be supported in multiples of 4K

required:
  - compatible

optional:
  - qcom,custom-bridge-size

examples:
  - |
    qtee_shmbridge {
        compatible = "qcom,tee-shared-memory-bridge";
    };

    To allocate 1M memory for SHMBridge, we will have entry like this:

    qtee_shmbridge {
	compatible = "qcom,tee-shared-memory-bridge";
	qcom,custom-bridge-size = <256>;
    };