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Date:   Fri, 15 Oct 2021 16:21:50 +0800
From:   Ming Qian <ming.qian@....com>
To:     mchehab@...nel.org, shawnguo@...nel.org, robh+dt@...nel.org,
        s.hauer@...gutronix.de
Cc:     hverkuil-cisco@...all.nl, kernel@...gutronix.de,
        festevam@...il.com, linux-imx@....com, aisheng.dong@....com,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v11 01/13] dt-bindings: media: amphion: add amphion video codec bindings

Add devicetree binding documentation for amphion
Video Processing Unit IP presents on NXP i.MX8Q

Signed-off-by: Ming Qian <ming.qian@....com>
Signed-off-by: Shijie Qin <shijie.qin@....com>
Signed-off-by: Zhou Peng <eagle.zhou@....com>
Reviewed-by: Rob Herring <robh@...nel.org>
---
 .../bindings/media/amphion,vpu.yaml           | 180 ++++++++++++++++++
 1 file changed, 180 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/amphion,vpu.yaml

diff --git a/Documentation/devicetree/bindings/media/amphion,vpu.yaml b/Documentation/devicetree/bindings/media/amphion,vpu.yaml
new file mode 100644
index 000000000000..a9d80eaeeeb6
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/amphion,vpu.yaml
@@ -0,0 +1,180 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/amphion,vpu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amphion VPU codec IP
+
+maintainers:
+  - Ming Qian <ming.qian@....com>
+  - Shijie Qin <shijie.qin@....com>
+
+description: |-
+  The Amphion MXC video encoder(Windsor) and decoder(Malone) accelerators present
+  on NXP i.MX8Q SoCs.
+
+properties:
+  $nodename:
+    pattern: "^vpu@[0-9a-f]+$"
+
+  compatible:
+    items:
+      - enum:
+          - nxp,imx8qm-vpu
+          - nxp,imx8qxp-vpu
+
+  reg:
+    maxItems: 1
+
+  power-domains:
+    maxItems: 1
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 1
+
+  ranges: true
+
+patternProperties:
+  "^mailbox@[0-9a-f]+$":
+    description:
+      Each vpu encoder or decoder correspond a MU, which used for communication
+      between driver and firmware. Implement via mailbox on driver.
+    $ref: ../mailbox/fsl,mu.yaml#
+
+
+  "^vpu_core@[0-9a-f]+$":
+    description:
+      Each core correspond a decoder or encoder, need to configure them
+      separately. NXP i.MX8QM SoC has one decoder and two encoder, i.MX8QXP SoC
+      has one decoder and one encoder.
+    type: object
+
+    properties:
+      compatible:
+        items:
+          - enum:
+              - nxp,imx8q-vpu-decoder
+              - nxp,imx8q-vpu-encoder
+
+      reg:
+        maxItems: 1
+
+      power-domains:
+        maxItems: 1
+
+      mbox-names:
+        items:
+          - const: tx0
+          - const: tx1
+          - const: rx
+
+      mboxes:
+        description:
+          List of phandle of 2 MU channels for tx, 1 MU channel for rx.
+        maxItems: 3
+
+      memory-region:
+        description:
+          Phandle to the reserved memory nodes to be associated with the
+          remoteproc device. The reserved memory nodes should be carveout nodes,
+          and should be defined as per the bindings in
+          Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt
+        items:
+          - description: region reserved for firmware image sections.
+          - description: region used for RPC shared memory between firmware and
+                         driver.
+
+    required:
+      - compatible
+      - reg
+      - power-domains
+      - mbox-names
+      - mboxes
+      - memory-region
+
+    additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - power-domains
+
+additionalProperties: false
+
+examples:
+  # Device node example for i.MX8QM platform:
+  - |
+    #include <dt-bindings/firmware/imx/rsrc.h>
+
+    vpu: vpu@...00000 {
+      compatible = "nxp,imx8qm-vpu";
+      ranges = <0x2c000000 0x2c000000 0x2000000>;
+      reg = <0x2c000000 0x1000000>;
+      #address-cells = <1>;
+      #size-cells = <1>;
+      power-domains = <&pd IMX_SC_R_VPU>;
+
+      mu_m0: mailbox@...00000 {
+        compatible = "fsl,imx6sx-mu";
+        reg = <0x2d000000 0x20000>;
+        interrupts = <0 472 4>;
+        #mbox-cells = <2>;
+        power-domains = <&pd IMX_SC_R_VPU_MU_0>;
+      };
+
+      mu1_m0: mailbox@...20000 {
+        compatible = "fsl,imx6sx-mu";
+        reg = <0x2d020000 0x20000>;
+        interrupts = <0 473 4>;
+        #mbox-cells = <2>;
+        power-domains = <&pd IMX_SC_R_VPU_MU_1>;
+      };
+
+      mu2_m0: mailbox@...40000 {
+        compatible = "fsl,imx6sx-mu";
+        reg = <0x2d040000 0x20000>;
+        interrupts = <0 474 4>;
+        #mbox-cells = <2>;
+        power-domains = <&pd IMX_SC_R_VPU_MU_2>;
+      };
+
+      vpu_core0: vpu_core@...80000 {
+        compatible = "nxp,imx8q-vpu-decoder";
+        reg = <0x2d080000 0x10000>;
+        power-domains = <&pd IMX_SC_R_VPU_DEC_0>;
+        mbox-names = "tx0", "tx1", "rx";
+        mboxes = <&mu_m0 0 0>,
+                 <&mu_m0 0 1>,
+                 <&mu_m0 1 0>;
+        memory-region = <&decoder_boot>, <&decoder_rpc>;
+      };
+
+      vpu_core1: vpu_core@...90000 {
+        compatible = "nxp,imx8q-vpu-encoder";
+        reg = <0x2d090000 0x10000>;
+        power-domains = <&pd IMX_SC_R_VPU_ENC_0>;
+        mbox-names = "tx0", "tx1", "rx";
+        mboxes = <&mu1_m0 0 0>,
+                 <&mu1_m0 0 1>,
+                 <&mu1_m0 1 0>;
+        memory-region = <&encoder1_boot>, <&encoder1_rpc>;
+      };
+
+      vpu_core2: vpu_core@...a0000 {
+        reg = <0x2d0a0000 0x10000>;
+        compatible = "nxp,imx8q-vpu-encoder";
+        power-domains = <&pd IMX_SC_R_VPU_ENC_1>;
+        mbox-names = "tx0", "tx1", "rx";
+        mboxes = <&mu2_m0 0 0>,
+                 <&mu2_m0 0 1>,
+                 <&mu2_m0 1 0>;
+        memory-region = <&encoder2_boot>, <&encoder2_rpc>;
+      };
+    };
+
+...
-- 
2.33.0

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