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From:   Ming Qian <ming.qian@nxp.com>
To:     mchehab@kernel.org, shawnguo@kernel.org, robh+dt@kernel.org,
        s.hauer@pengutronix.de
Cc:     hverkuil-cisco@xs4all.nl, kernel@pengutronix.de,
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        linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
        devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/5] dt-bindings: media: imx8q: add imx video codec bindings
Date:   Mon, 31 May 2021 10:51:09 +0800
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Add devicetree binding documentation for IMX8Q Video Processing Unit IP

Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Shijie Qin <shijie.qin@nxp.com>
Signed-off-by: Zhou Peng <eagle.zhou@nxp.com>
---
 .../bindings/media/nxp,imx8q-vpu.yaml         | 201 ++++++++++++++++++
 1 file changed, 201 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/nxp,imx8q-vpu.yaml

diff --git a/Documentation/devicetree/bindings/media/nxp,imx8q-vpu.yaml b/Documentation/devicetree/bindings/media/nxp,imx8q-vpu.yaml
new file mode 100644
index 000000000000..97e428dbfdbe
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/nxp,imx8q-vpu.yaml
@@ -0,0 +1,201 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/nxp,imx8q-vpu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP i.MX8Q video encode and decode accelerators
+
+maintainers:
+  - ming_qian <ming.qian@nxp.com>
+  - Shijie Qin <shijie.qin@nxp.com>
+
+description: |-
+  The Amphion MXC video encode and decode accelerators present on NXP i.MX8Q SoCs.
+
+allOf:
+  - $ref: /schemas/simple-bus.yaml#
+
+properties:
+  compatible:
+    items:
+      - enum:
+        - nxp,imx8qxp-vpu
+        - nxp,imx8qm-vpu
+
+  reg:
+    maxItems: 1
+
+  power-domains:
+    maxItems: 1
+
+  memory-region:
+    description:
+      Phandle to a node describing reserved memory used by VPU.
+      (see bindings/reserved-memory/reserved-memory.txt)
+
+  vpu_lpcg:
+    description:
+      This is vpu Low-Power Clock Gate (LPCG) module.
+
+  mu_m0:
+    description:
+      Each vpu core correspond a MU node, which used for communication between
+      driver and firmware. Implement via mailbox on driver.
+
+    vpu_core:
+      type: object
+      additionalProperties: false
+      description:
+        Each core correspond a decoder or encoder, need to configure them
+        separately.
+
+      properties:
+        compatible:
+          oneOf:
+            - const: nxp,imx8q-vpu-decoder
+            - const: nxp,imx8q-vpu-encoder
+
+        reg:
+          maxItems: 1
+
+        power-domains:
+          maxItems: 1
+
+        mbox-names:
+            - const: tx0
+            - const: tx1
+            - const: rx
+
+        mboxes:
+          maxItems: 3
+          description:
+            List of phandle of 2 MU channels for tx, 1 MU channel for rx.
+
+        boot-region:
+          description:
+            Phandle to a node describing reserved memory used by firmware
+            loading.
+
+        rpc-region:
+          description:
+            Phandle to a node describing reserved memory used by RPC shared
+            memory between firmware and driver.
+
+        print-offset:
+          description:
+            The memory offset from RPC address, used by reserve firmware log.
+
+        id:
+          description: Index of vpu core.
+
+      required:
+      - compatible
+      - reg
+      - power-domains
+      - mbox-names
+      - mboxes
+      - boot-region
+      - rpc-region
+      - print-offset
+      - id
+
+
+required:
+  - compatible
+  - reg
+  - power-domains
+  - memory-region
+  - vpu_lpcg
+  - mu_m0
+  - vpu_core
+
+examples:
+  # Device node example for i.MX8QM platform:
+  - |
+    #include <dt-bindings/firmware/imx/rsrc.h>
+
+    vpu: vpu-bus@2c000000 {
+      compatible = "nxp,imx8qm-vpu", "simple-bus";
+      ranges = <0x2c000000 0x2c000000 0x2000000>;
+      reg = <0x2c000000 0x1000000>;
+      #address-cells = <1>;
+      #size-cells = <1>;
+      power-domains = <&pd IMX_SC_R_VPU>;
+      memory-region = <&vpu_reserved>;
+
+      vpu_lpcg: clock-controller@2c000000 {
+        compatible = "fsl,imx8qxp-lpcg-vpu";
+        reg = <0x2c000000 0x2000000>;
+        #clock-cells = <1>;
+        status = "disabled";
+      };
+
+      mu_m0: mailbox@2d000000 {
+        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@2d020000 {
+        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@2d040000 {
+        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_decoder@2d080000 {
+        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>;
+        boot-region = <&decoder_boot>;
+        rpc-region = <&decoder_rpc>;
+        print-offset = <0x180000>;
+        id = <0>;
+      };
+
+      vpu_core1: vpu_encoder@2d090000 {
+        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>;
+        boot-region = <&encoder1_boot>;
+        rpc-region = <&encoder1_rpc>;
+        print-offset = <0x80000>;
+        id = <1>;
+      };
+
+      vpu_core2: vpu_encoder@2d0a0000 {
+        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>;
+        boot-region = <&encoder2_boot>;
+        rpc-region = <&encoder2_rpc>;
+        id = <2>;
+      };
+    };
+
+...
-- 
2.31.1