1 files changed, 139 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/media/allwinner,sun6i-a31-csi.yaml b/Documentation/devicetree/bindings/media/allwinner,sun6i-a31-csi.yaml
new file mode 100644
index 000000000..f1ccca35a
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/allwinner,sun6i-a31-csi.yaml
@@ -0,0 +1,139 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/allwinner,sun6i-a31-csi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A31 CMOS Sensor Interface (CSI)
+
+maintainers:
+  - Chen-Yu Tsai <wens@csie.org>
+  - Maxime Ripard <mripard@kernel.org>
+
+properties:
+  compatible:
+    enum:
+      - allwinner,sun6i-a31-csi
+      - allwinner,sun8i-a83t-csi
+      - allwinner,sun8i-h3-csi
+      - allwinner,sun8i-v3s-csi
+      - allwinner,sun50i-a64-csi
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Bus Clock
+      - description: Module Clock
+      - description: DRAM Clock
+
+  clock-names:
+    items:
+      - const: bus
+      - const: mod
+      - const: ram
+
+  resets:
+    maxItems: 1
+
+  port:
+    $ref: /schemas/graph.yaml#/$defs/port-base
+    description: Parallel input port, connect to a parallel sensor
+
+    properties:
+      endpoint:
+        $ref: video-interfaces.yaml#
+        unevaluatedProperties: false
+
+        properties:
+          bus-width:
+            enum: [ 8, 10, 12, 16 ]
+
+          pclk-sample: true
+          hsync-active: true
+          vsync-active: true
+
+        required:
+          - bus-width
+
+    unevaluatedProperties: false
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0:
+        $ref: "#/properties/port"
+
+      port@1:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: MIPI CSI-2 bridge input port
+
+    anyOf:
+      - required:
+          - port@0
+      - required:
+          - port@1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - resets
+
+oneOf:
+  - required:
+      - ports
+  - required:
+      - port
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/sun8i-v3s-ccu.h>
+    #include <dt-bindings/reset/sun8i-v3s-ccu.h>
+
+    csi1: csi@1cb4000 {
+        compatible = "allwinner,sun8i-v3s-csi";
+        reg = <0x01cb4000 0x1000>;
+        interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&ccu CLK_BUS_CSI>,
+                 <&ccu CLK_CSI1_SCLK>,
+                 <&ccu CLK_DRAM_CSI>;
+        clock-names = "bus",
+                      "mod",
+                      "ram";
+        resets = <&ccu RST_BUS_CSI>;
+
+        ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            port@0 {
+                reg = <0>;
+                /* Parallel bus endpoint */
+                csi1_ep: endpoint {
+                    remote-endpoint = <&adv7611_ep>;
+                    bus-width = <16>;
+
+                    /*
+                     * If hsync-active/vsync-active are missing,
+                     * embedded BT.656 sync is used.
+                     */
+                    hsync-active = <0>; /* Active low */
+                    vsync-active = <0>; /* Active low */
+                    pclk-sample = <1>;  /* Rising */
+                };
+            };
+        };
+    };
+
+...