dt-bindings: media: venus: Add sc7280 dt schema

Add a schema description for the venus video encoder/decoder on the sc7280.

Signed-off-by Dikshita Agarwal <[email protected]>

changes since v1:
- adrressed comments from stanimir.

this patch depends on [1],[2] & [3].

---
 .../bindings/media/qcom,sc7280-venus.yaml          | 157 +++++++++++++++++++++
 1 file changed, 157 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/qcom,sc7280-venus.yaml

[1] https://patchwork.kernel.org/project/linux-clk/list/?series=449621
[2] https://lkml.org/lkml/2021/4/9/812
[3] https://lore.kernel.org/patchwork/project/lkml/list/?series=488429

Documentation/devicetree/bindings/media/qcom,sc7280-venus.yaml new file +26 -0

new file mode 100644
index 0000000..32bdb65
@@ -0,0 +1,157 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/media/qcom,sc7280-venus.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Qualcomm Venus video encode and decode accelerators
+
+maintainers:
+  - Stanimir Varbanov <[email protected]>
+
+description: |
+  The Venus Iris2 IP is a video encode and decode accelerator present
+  on Qualcomm platforms
+
+properties:
+  compatible:
+    const: qcom,sc7280-venus
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+

Documentation/devicetree/bindings/media/qcom,sc7280-venus.yaml new file +121 -0

+
+  clocks:
+    maxItems: 5
+
+  clock-names:
+    items:
+      - const: core
+      - const: bus
+      - const: iface
+      - const: vcodec_core
+      - const: vcodec_bus
+
+  iommus:
+    maxItems: 2
+
+  memory-region:
+    maxItems: 1
+
+  interconnects:
+    maxItems: 2
+
+  interconnect-names:
+    items:
+      - const: cpu-cfg
+      - const: video-mem
+
+  video-decoder:
+    type: object
+
+    properties:
+      compatible:
+        const: venus-decoder
+
+    required:
+      - compatible
+
+    additionalProperties: false
+
+  video-encoder:
+    type: object
+
+    properties:
+      compatible:
+        const: venus-encoder
+
+    required:
+      - compatible
+
+    additionalProperties: false
+
+  video-firmware:
+    type: object
+
+    description: |
+      Firmware subnode is needed when the platform does not
+      have TrustZone.
+
+    properties:
+      iommus:
+        maxItems: 1
+
+    required:
+      - iommus
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - power-domains
+  - power-domain-names
+  - clocks
+  - clock-names
+  - iommus
+  - memory-region
+  - video-decoder
+  - video-encoder
+
+additionalProperties: false
+
+examples:
+  - |
+        #include <dt-bindings/clock/qcom,videocc-sc7280.h>
+
+        venus: video-codec@aa00000 {
+                compatible = "qcom,sc7280-venus";
+                reg = <0x0aa00000 0xd0600>;
+                interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>;
+
+                clocks = <&videocc VIDEO_CC_MVSC_CORE_CLK>,
+                         <&videocc VIDEO_CC_MVSC_CTL_AXI_CLK>,
+                         <&videocc VIDEO_CC_VENUS_AHB_CLK>,
+                         <&videocc VIDEO_CC_MVS0_CORE_CLK>,
+                         <&videocc VIDEO_CC_MVS0_AXI_CLK>;
+                clock-names = "core", "bus", "iface",
+                              "vcodec_core", "vcodec_bus";
+
+                power-domains = <&videocc MVSC_GDSC>,
+                                <&videocc MVS0_GDSC>;
+                power-domain-names = "venus", "vcodec0";
+
+                interconnects = <&gem_noc MASTER_APPSS_PROC 0 &cnoc2 SLAVE_VENUS_CFG 0>
+                                <&mmss_noc MASTER_VIDEO_P0 0 &mc_virt SLAVE_EBI1 0>;
+                interconnect-names = "cpu-cfg", "video-mem";
+
+                iommus = <&apps_smmu 0x2180 0x20>,
+                         <&apps_smmu 0x2184 0x20>;
+
+                memory-region = <&video_mem>;
+
+                video-decoder {
+                        compatible = "venus-decoder";
+                };
+
+                video-encoder {
+                        compatible = "venus-encoder";
+                };
+
+                video-firmware {
+                        iommus = <&apps_smmu 0x21a2 0x0>;
+                };
+        };

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2.7.4