dt-bindings: Add remoteproc AoN binding documentation

This commit adds a device tree binding documentation for the
AoN subsystem.
The documentation includes details about the properties, usage
and examples of the binding.

Change-Id: Ic4d4ec8d0ea1fc9b83cc0369fc0df06f6631f329
Signed-off-by: Pradnya Dahiwale <quic_pdahiwal@quicinc.com>

bindings/remoteproc/qcom,slate.yaml

@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/remoteproc/qcom,slate.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies, Inc. SLATE Peripheral Image Loader
+
+maintainers:
+  - Pradnya Dahiwale <quic_pdahiwal@quicinc.com>
+
+description:
+   This document defines the binding for a component that loads and boots
+   firmware on the Qualcomm Technologies, Inc. SLATE core.
+
+properties:
+  compatible:
+    const: qcom,rproc-slate
+
+  qcom,firmware-name:
+    $ref: /schemas/types.yaml#/definitions/string
+    description: Firmware name for the AoN core
+
+  qcom,slate2ap-status-gpio:
+    description: IRQ used by SLATE to inturrupt MSM.
+
+  qcom,ap2slate-status-gpio:
+    description: IRQ used by MSM to interrupt SLATE.
+
+required:
+  - compatible
+
+additionalProperties: false
+
+examples:
+  - |
+   aon_pas:qcom,rproc-slate {
+         compatible = "qcom,rproc-slate";
+         qcom,firmware-name = "slatefw.mdt";
+         /* GPIO inputs from blackghost */
+         qcom,slate2ap-status-gpio = <&tlmm 98 0>;
+         /* GPIO output to blackghost */
+         qcom,ap2slate-status-gpio = <&tlmm 97 0>;
+   };
+