[PATCH 02/14] dt-bindings: media: add apple,avd

[Sofus Forstreuter]

Document the Apple Video Decoder. A hardware video decoder present on
Apple hardware.

Signed-off-by: Sofus Forstreuter <sofus.c@xxxxxxxxxx>
---
 .../devicetree/bindings/media/apple,avd.yaml       | 112 +++++++++++++++++++++
 MAINTAINERS                                        |   1 +
 2 files changed, 113 insertions(+)

diff --git a/Documentation/devicetree/bindings/media/apple,avd.yaml b/Documentation/devicetree/bindings/media/apple,avd.yaml
new file mode 100644
index 000000000000..34a4129d6a46
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/apple,avd.yaml
@@ -0,0 +1,112 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/apple,avd.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Apple Video Decoder (AVD)
+
+description: |
+  AVD is a stateless video decode IP block present on Apple devices.
+  Notably it includes an ARM Cortex-M3 and associated DMA controller.
+  AVD is capable of decoding H264, H265, VP9 and AV1 on never SoCs.
+
+  The IP does not change much, with changes being mostly the CM3 having more
+  memory and interrupts.
+
+maintainers:
+  - Sofus Forstreuter <sofus.c@xxxxxxxxxx>
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - apple,t6030-avd
+              - apple,t6031-avd
+          - const: apple,t8122-avd
+      - enum:
+          - apple,t8103-avd
+          - apple,t8112-avd
+          - apple,t8122-avd
+          - apple,t6000-avd
+          - apple,t6020-avd
+
+  reg:
+    minItems: 4
+    items:
+      - description: Cortex-M3 code (unsigned)
+      - description: Cortex-M3 sram
+      - description: Mailbox
+      - description: Video decode control
+      - description: DMA control
+
+  reg-names:
+    items:
+      - const: code
+      - const: sram
+      - const: mbox
+      - const: ctrl
+
+  iommus:
+    minItems: 1
+    maxItems: 3
+    description: |
+      The block contains 3 iommus, one for decode operations, one the DMA
+      controller can use and the last for decoding drm-protected content.
+
+  power-domains:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  interrupts:
+    minItems: 2
+    items:
+      - description: mailbox 0
+      - description: mailbox 1
+      - description: mailbox 2
+      - description: mailbox 3
+      - description: flag 0
+      - description: flag 1
+      - description: DMA status
+    description: |
+      Notably there are no decode related interrupts. All decode related
+      interrupts are sent to the CM3.
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - reg-names
+  - iommus
+  - power-domains
+  - resets
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/apple-aic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        avd: avd@289080000 {
+            compatible = "apple,t8122-avd";
+            reg = <0x2 0x89080000 0x0 0x12000>,
+                  <0x2 0x89092000 0x0 0x12000>,
+                  <0x2 0x890a4000 0x0 0x4000>,
+                  <0x2 0x89100000 0x0 0x10000>;
+            reg-names = "code", "sram", "mbox", "ctrl";
+            interrupt-parent = <&aic>;
+            interrupts = <AIC_IRQ 679 IRQ_TYPE_LEVEL_HIGH>,
+                         <AIC_IRQ 680 IRQ_TYPE_LEVEL_HIGH>;
+            power-domains = <&ps_avd_sys>;
+            resets = <&ps_avd_sys>;
+            iommus = <&avd_dart 0>;
+        };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 4cc4a2dc6d30..3c7c5fe3f0bc 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2643,6 +2643,7 @@ F:	Documentation/devicetree/bindings/iommu/apple,dart.yaml
 F:	Documentation/devicetree/bindings/iommu/apple,sart.yaml
 F:	Documentation/devicetree/bindings/leds/backlight/apple,dwi-bl.yaml
 F:	Documentation/devicetree/bindings/mailbox/apple,mailbox.yaml
+F:	Documentation/devicetree/bindings/media/apple,avd.yaml
 F:	Documentation/devicetree/bindings/mfd/apple,smc.yaml
 F:	Documentation/devicetree/bindings/net/bluetooth/brcm,bcm4377-bluetooth.yaml
 F:	Documentation/devicetree/bindings/nvme/apple,nvme-ans.yaml

-- 
2.55.0