media: dt-bindings: Add amlogic,c3-mipi-csi2.yaml

c3-mipi-csi2 is used to receive mipi data from image sensor.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Keke Li <keke.li@amlogic.com>
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>

Documentation/devicetree/bindings/media/amlogic,c3-mipi-csi2.yaml

@@ -0,0 +1,127 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/amlogic,c3-mipi-csi2.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic C3 MIPI CSI-2 receiver
+
+maintainers:
+  - Keke Li <keke.li@amlogic.com>
+
+description:
+  MIPI CSI-2 receiver contains CSI-2 RX PHY and host controller.
+  It receives the MIPI data from the image sensor and sends MIPI data
+  to MIPI adapter.
+
+properties:
+  compatible:
+    enum:
+      - amlogic,c3-mipi-csi2
+
+  reg:
+    maxItems: 3
+
+  reg-names:
+    items:
+      - const: aphy
+      - const: dphy
+      - const: host
+
+  power-domains:
+    maxItems: 1
+
+  clocks:
+    maxItems: 2
+
+  clock-names:
+    items:
+      - const: vapb
+      - const: phy0
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+        description: input port node, connected to sensor.
+
+        properties:
+          endpoint:
+            $ref: video-interfaces.yaml#
+            unevaluatedProperties: false
+
+            properties:
+              data-lanes:
+                minItems: 1
+                maxItems: 4
+
+            required:
+              - data-lanes
+
+      port@1:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: output port node
+
+    required:
+      - port@0
+      - port@1
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - power-domains
+  - clocks
+  - clock-names
+  - ports
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/amlogic,c3-peripherals-clkc.h>
+    #include <dt-bindings/power/amlogic,c3-pwrc.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        csi: csi@ff018000 {
+            compatible = "amlogic,c3-mipi-csi2";
+            reg = <0x0 0xff018000 0x0 0x400>,
+                  <0x0 0xff019000 0x0 0x300>,
+                  <0x0 0xff01a000 0x0 0x100>;
+            reg-names = "aphy", "dphy", "host";
+            power-domains = <&pwrc PWRC_C3_MIPI_ISP_WRAP_ID>;
+            clocks =  <&clkc_periphs CLKID_VAPB>,
+                      <&clkc_periphs CLKID_CSI_PHY0>;
+            clock-names = "vapb", "phy0";
+            assigned-clocks = <&clkc_periphs CLKID_VAPB>,
+                              <&clkc_periphs CLKID_CSI_PHY0>;
+            assigned-clock-rates = <0>, <200000000>;
+
+            ports {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                port@0 {
+                    reg = <0>;
+                    c3_mipi_csi_in: endpoint {
+                        remote-endpoint = <&imx290_out>;
+                        data-lanes = <1 2 3 4>;
+                    };
+                };
+
+                port@1 {
+                    reg = <1>;
+                    c3_mipi_csi_out: endpoint {
+                        remote-endpoint = <&c3_adap_in>;
+                    };
+                };
+            };
+        };
+    };
+...

MAINTAINERS

@@ -1254,6 +1254,12 @@ F:	Documentation/devicetree/bindings/perf/amlogic,g12-ddr-pmu.yaml
 F:	drivers/perf/amlogic/
 F:	include/soc/amlogic/
 
+AMLOGIC MIPI CSI2 DRIVER
+M:	Keke Li <keke.li@amlogic.com>
+L:	linux-media@vger.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/media/amlogic,c3-mipi-csi2.yaml
+
 AMLOGIC PINCTRL DRIVER
 M:	Xianwei Zhao <xianwei.zhao@amlogic.com>
 L:	linux-amlogic@lists.infradead.org