[PATCH v8 1/2] media: dt-bindings: Add CSI Pixel Formatter DT bindings

[Guoniu Zhou]

From: Guoniu Zhou <guoniu.zhou@xxxxxxx>

The i.MX95 CSI pixel formatting module uses packet info, pixel and
non-pixel data from the CSI-2 host controller and reformat them to
match Pixel Link(PL) definition.

Reviewed-by: Frank Li <Frank.Li@xxxxxxx>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxxxxx>
Signed-off-by: Guoniu Zhou <guoniu.zhou@xxxxxxx>
---
Changes in v8:
- Use standard port reference instead of video-interfaces.yaml
- Add parent syscon node in example to show device integration
- Add required constraints for port@0 and port@1 in ports node

Changes in v7:
- Change compatible to imx95-csi-formatter as IP is i.MX95 specific per Marco's suggestion
  Link: https://lore.kernel.org/linux-media/20260511-csi_formatter-v6-0-01028e312e2b@xxxxxxxxxxx/T/#mcd135b3de179b3cb69daa1fd6e0e8e27c85b3332
---
 .../bindings/media/fsl,imx95-csi-formatter.yaml    | 92 ++++++++++++++++++++++
 1 file changed, 92 insertions(+)

diff --git a/Documentation/devicetree/bindings/media/fsl,imx95-csi-formatter.yaml b/Documentation/devicetree/bindings/media/fsl,imx95-csi-formatter.yaml
new file mode 100644
index 000000000000..bc2f5d448fe5
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/fsl,imx95-csi-formatter.yaml
@@ -0,0 +1,92 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/fsl,imx95-csi-formatter.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: i.MX95 CSI Pixel Formatter
+
+maintainers:
+  - Guoniu Zhou <guoniu.zhou@xxxxxxx>
+
+description:
+  The CSI pixel formatting module found on i.MX95 uses packet info, pixel
+  and non-pixel data from the CSI-2 host controller and reformat them to
+  match Pixel Link(PL) definition.
+
+properties:
+  compatible:
+    const: fsl,imx95-csi-formatter
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  power-domains:
+    maxItems: 1
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: MIPI CSI-2 RX IDI interface
+
+      port@1:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: Pixel Link Interface
+
+    required:
+      - port@0
+      - port@1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - power-domains
+  - ports
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/nxp,imx95-clock.h>
+
+    syscon@4ac10000 {
+        compatible = "nxp,imx95-camera-csr", "syscon";
+        reg = <0x0 0x4ac10000 0x0 0x10000>;
+        #address-cells = <1>;
+        #size-cells = <1>;
+
+        formatter@20 {
+            compatible = "fsl,imx95-csi-formatter";
+            reg = <0x20 0x100>;
+            clocks = <&cameramix_csr IMX95_CLK_CAMBLK_CSI2_FOR0>;
+            power-domains = <&scmi_devpd 3>;
+
+            ports {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                port@0 {
+                    reg = <0>;
+
+                    endpoint {
+                        remote-endpoint = <&mipi_csi_0_out>;
+                };
+            };
+
+                port@1 {
+                    reg = <1>;
+
+                    endpoint {
+                        remote-endpoint = <&isi_in_2>;
+                    };
+                };
+            };
+        };
+    };

-- 
2.34.1