media: dt-bindings: Add JH7110 Camera Subsystem

Add the bindings documentation for Starfive JH7110 Camera Subsystem
which is used for handing image sensor data.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jack Zhu <jack.zhu@starfivetech.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml

@@ -0,0 +1,180 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/starfive,jh7110-camss.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Starfive SoC CAMSS ISP
+
+maintainers:
+  - Jack Zhu <jack.zhu@starfivetech.com>
+  - Changhuang Liang <changhuang.liang@starfivetech.com>
+
+description:
+  The Starfive CAMSS ISP is a Camera interface for Starfive JH7110 SoC. It
+  consists of a VIN controller (Video In Controller, a top-level control unit)
+  and an ISP.
+
+properties:
+  compatible:
+    const: starfive,jh7110-camss
+
+  reg:
+    maxItems: 2
+
+  reg-names:
+    items:
+      - const: syscon
+      - const: isp
+
+  clocks:
+    maxItems: 7
+
+  clock-names:
+    items:
+      - const: apb_func
+      - const: wrapper_clk_c
+      - const: dvp_inv
+      - const: axiwr
+      - const: mipi_rx0_pxl
+      - const: ispcore_2x
+      - const: isp_axi
+
+  resets:
+    maxItems: 6
+
+  reset-names:
+    items:
+      - const: wrapper_p
+      - const: wrapper_c
+      - const: axird
+      - const: axiwr
+      - const: isp_top_n
+      - const: isp_top_axi
+
+  power-domains:
+    items:
+      - description: JH7110 ISP Power Domain Switch Controller.
+
+  interrupts:
+    maxItems: 4
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+        description: Input port for receiving DVP data.
+
+        properties:
+          endpoint:
+            $ref: video-interfaces.yaml#
+            unevaluatedProperties: false
+
+            properties:
+              bus-type:
+                enum: [5, 6]
+
+              bus-width:
+                enum: [8, 10, 12]
+
+              data-shift:
+                enum: [0, 2]
+                default: 0
+
+              hsync-active:
+                enum: [0, 1]
+                default: 1
+
+              vsync-active:
+                enum: [0, 1]
+                default: 1
+
+            required:
+              - bus-type
+              - bus-width
+
+      port@1:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: Input port for receiving CSI data.
+
+    required:
+      - port@0
+      - port@1
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - clocks
+  - clock-names
+  - resets
+  - reset-names
+  - power-domains
+  - interrupts
+  - ports
+
+additionalProperties: false
+
+examples:
+  - |
+    isp@19840000 {
+        compatible = "starfive,jh7110-camss";
+        reg = <0x19840000 0x10000>,
+              <0x19870000 0x30000>;
+        reg-names = "syscon", "isp";
+        clocks = <&ispcrg 0>,
+                 <&ispcrg 13>,
+                 <&ispcrg 2>,
+                 <&ispcrg 12>,
+                 <&ispcrg 1>,
+                 <&syscrg 51>,
+                 <&syscrg 52>;
+        clock-names = "apb_func",
+                      "wrapper_clk_c",
+                      "dvp_inv",
+                      "axiwr",
+                      "mipi_rx0_pxl",
+                      "ispcore_2x",
+                      "isp_axi";
+        resets = <&ispcrg 0>,
+                 <&ispcrg 1>,
+                 <&ispcrg 10>,
+                 <&ispcrg 11>,
+                 <&syscrg 41>,
+                 <&syscrg 42>;
+        reset-names = "wrapper_p",
+                      "wrapper_c",
+                      "axird",
+                      "axiwr",
+                      "isp_top_n",
+                      "isp_top_axi";
+        power-domains = <&pwrc 5>;
+        interrupts = <92>, <87>, <88>, <90>;
+
+        ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+            port@0 {
+                reg = <0>;
+                vin_from_sc2235: endpoint {
+                    remote-endpoint = <&sc2235_to_vin>;
+                    bus-type = <5>;
+                    bus-width = <8>;
+                    data-shift = <2>;
+                    hsync-active = <1>;
+                    vsync-active = <0>;
+                    pclk-sample = <1>;
+                };
+            };
+
+            port@1 {
+                reg = <1>;
+                vin_from_csi2rx: endpoint {
+                    remote-endpoint = <&csi2rx_to_vin>;
+                };
+            };
+        };
+    };

MAINTAINERS

@@ -20638,6 +20638,13 @@ M:	Ion Badulescu <ionut@badula.org>
 S:	Odd Fixes
 F:	drivers/net/ethernet/adaptec/starfire*
 
+STARFIVE CAMERA SUBSYSTEM DRIVER
+M:	Jack Zhu <jack.zhu@starfivetech.com>
+M:	Changhuang Liang <changhuang.liang@starfivetech.com>
+L:	linux-media@vger.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml
+
 STARFIVE CRYPTO DRIVER
 M:	Jia Jie Ho <jiajie.ho@starfivetech.com>
 M:	William Qiu <william.qiu@starfivetech.com>