From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 20:49:45 +0200
Subject: Adding upstream version 6.1.76.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../bindings/mailbox/mediatek,gce-mailbox.yaml     | 85 ++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml

(limited to 'Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml')

diff --git a/Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml b/Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml
new file mode 100644
index 000000000..c579ac074
--- /dev/null
+++ b/Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml
@@ -0,0 +1,85 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mailbox/mediatek,gce-mailbox.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mediatek Global Command Engine Mailbox
+
+maintainers:
+  - Houlong Wei <houlong.wei@mediatek.com>
+
+description:
+  The Global Command Engine (GCE) is used to help read/write registers with
+  critical time limitation, such as updating display configuration during the
+  vblank. The GCE can be used to implement the Command Queue (CMDQ) driver.
+
+properties:
+  compatible:
+    enum:
+      - mediatek,mt6779-gce
+      - mediatek,mt8173-gce
+      - mediatek,mt8183-gce
+      - mediatek,mt8186-gce
+      - mediatek,mt8192-gce
+      - mediatek,mt8195-gce
+
+  "#mbox-cells":
+    const: 2
+    description:
+      The first cell describes the Thread ID of the GCE,
+      the second cell describes the priority of the GCE thread
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Global Command Engine clock
+
+  clock-names:
+    items:
+      - const: gce
+
+required:
+  - compatible
+  - "#mbox-cells"
+  - reg
+  - interrupts
+  - clocks
+
+allOf:
+  - if:
+      not:
+        properties:
+          compatible:
+            contains:
+              const: mediatek,mt8195-gce
+    then:
+      required:
+        - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/mt8173-clk.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        gce: mailbox@10212000 {
+            compatible = "mediatek,mt8173-gce";
+            reg = <0 0x10212000 0 0x1000>;
+            interrupts = <GIC_SPI 135 IRQ_TYPE_LEVEL_LOW>;
+            #mbox-cells = <2>;
+            clocks = <&infracfg CLK_INFRA_GCE>;
+            clock-names = "gce";
+        };
+    };
-- 
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