[v4,04/11] media: dt-bindings: media: add bindings for rockchip mipi csi host

Commit Message

Michael Riesch Feb. 19, 2025, 10:16 a.m. UTC

Add documentation for the Rockchip RK3568 MIPI CSI-2 Host unit.

Signed-off-by: Michael Riesch <[e-mail]>
---
 .../bindings/media/rockchip,rk3568-mipi-csi.yaml   | 123 +++++++++++++++++++++
 MAINTAINERS                                        |   1 +
 2 files changed, 124 insertions(+)

Patch

diff --git a/Documentation/devicetree/bindings/media/rockchip,rk3568-mipi-csi.yaml b/Documentation/devicetree/bindings/media/rockchip,rk3568-mipi-csi.yaml
new file mode 100644
index 000000000000..288941686e96
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/rockchip,rk3568-mipi-csi.yaml
@@ -0,0 +1,123 @@ 
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/rockchip,rk3568-mipi-csi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip RK3568 MIPI CSI-2 Host
+
+maintainers:
+  - Michael Riesch <[e-mail]>
+
+description:
+  The Rockchip RK3568 MIPI CSI-2 Host is a CSI-2 bridge with one input port
+  and one output port. It receives the data with the help of an external
+  MIPI PHY (C-PHY or D-PHY) and passes it to the Rockchip RK3568 Video Capture
+  (VICAP) block.
+
+properties:
+  compatible:
+    const: rockchip,rk3568-mipi-csi
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  phys:
+    maxItems: 1
+    description: MIPI C-PHY or D-PHY.
+
+  phy-names:
+    items:
+      - const: csiphy
+
+  power-domains:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+        description:
+          Input port node. Connect to e.g., a MIPI CSI-2 image sensor.
+
+        properties:
+          endpoint:
+            $ref: video-interfaces.yaml#
+            unevaluatedProperties: false
+
+            properties:
+              bus-type:
+                enum: [1, 4]
+
+            required:
+              - bus-type
+
+      port@1:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+        description:
+          Output port node. Connect to RK3568 VICAP MIPI CSI-2 port.
+
+    required:
+      - port@0
+      - port@1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - phys
+  - phy-names
+  - ports
+  - power-domains
+  - resets
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/rk3568-cru.h>
+    #include <dt-bindings/power/rk3568-power.h>
+
+    parent {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        csi: csi@fdfb0000 {
+            compatible = "rockchip,rk3568-mipi-csi";
+            reg = <0x0 0xfdfb0000 0x0 0x10000>;
+            clocks = <&cru PCLK_CSI2HOST1>;
+            phys = <&csi_dphy>;
+            phy-names = "csiphy";
+            power-domains = <&power RK3568_PD_VI>;
+            resets = <&cru SRST_P_CSI2HOST1>;
+            status = "disabled";
+
+            ports {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                csi_in: port@0 {
+                    reg = <0>;
+                };
+
+                csi_out: port@1 {
+                    reg = <1>;
+
+                    csi_output: endpoint {
+                        remote-endpoint = <&vicap_mipi_input>;
+                    };
+                };
+            };
+        };
+    };
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index cd8fa1afe5eb..d83a7762dbe3 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -20407,6 +20407,7 @@  M:	Michael Riesch <[e-mail]>
 L:	[e-mail]
 S:	Maintained
 F:	Documentation/devicetree/bindings/media/rockchip,px30-vip.yaml
+F:	Documentation/devicetree/bindings/media/rockchip,rk3568-mipi-csi.yaml
 F:	Documentation/devicetree/bindings/media/rockchip,rk3568-vicap.yaml
 
 ROCKCHIP CRYPTO DRIVERS