[PATCH v3 1/2] Add bindings for ams Mira220 cmos image sensor

[philippe baetens <philippebaetens@gmail.com>]

Mira220 is a global shutter NIR-enhanced image sensor made by AMS.
Driver is submitted in the next patch of this series and verified on a raspberry pi.

Signed-off-by: philippe baetens <philippebaetens@gmail.com>
---
Changes in v3:
	 - Improve commit message
	 - add mailing list for device tree.

Changes in v2:
	 - add maintainers and Documentation.yaml

---
 .../bindings/media/i2c/ams,mira220.yaml       | 125 ++++++++++++++++++
 MAINTAINERS                                   |   6 +
 2 files changed, 131 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/i2c/ams,mira220.yaml

diff --git a/Documentation/devicetree/bindings/media/i2c/ams,mira220.yaml b/Documentation/devicetree/bindings/media/i2c/ams,mira220.yaml
new file mode 100644
index 000000000..21a55ff07
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/ams,mira220.yaml
@@ -0,0 +1,125 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/i2c/ams,mira220.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ams 2.2 MP NIR enhanced global shutter image sensor
+
+maintainers:
+  - Philippe Baetens <philippebaetens@gmail.com>
+
+description: |-
+  2.2 MP NIR enhanced global shutter image sensor designed for 2D and 3D
+  consumer and industrial machine vision applications.
+  Due to its small size, configurability and high sensitivity both
+  in visual as well as NIR, the Mira220 is well suited for 2D and
+  3D applications, which include Active Stereo Vision,
+  Structured Light Vision for Robotics and AR/VR.
+
+properties:
+  compatible:
+    const: ams,mira220
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    description: Input clock (38.4 MHz)
+    items:
+      - const: inck
+
+  vdig-supply:
+    description:
+      Digital I/O voltage supply, 1.35 volts
+
+  vana1-supply:
+    description:
+      Analog1 voltage supply, 2.8 volts
+
+  vana2-supply:
+    description:
+      Analog2 voltage supply, 1.8 volts
+
+  vddl-supply:
+    description:
+      Digital core voltage supply, 1.8 volts
+
+  reset-gpios:
+    description: Sensor reset (XCLR) GPIO
+    maxItems: 1
+
+  port:
+    $ref: /schemas/graph.yaml#/$defs/port-base
+    description: |
+      Video output port
+
+    properties:
+      endpoint:
+        $ref: /schemas/media/video-interfaces.yaml#
+        unevaluatedProperties: false
+
+        properties:
+          data-lanes:
+            anyOf:
+              - items:
+                  - const: 1
+                  - const: 2
+              - items:
+                  - const: 1
+                  - const: 2
+                  - const: 3
+                  - const: 4
+
+          link-frequencies: true
+
+        required:
+          - data-lanes
+          - link-frequencies
+
+    additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - vdig-supply
+  - vana-supply
+  - vddl-supply
+  - port
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        mira220: camera-sensor@1a {
+            compatible = "ams,mira220";
+            reg = <0x54>;
+
+            clocks = <&cam1_clk>;
+            clock-names = "xclk";
+
+            vana-supply = <&cam1_reg>;	/* 2.5v */
+            vdig-supply = <&cam_dummy_reg>;	/* 1.8v */
+            vddl-supply = <&cam_dummy_reg>;	/* 1.35v */
+
+            port {
+                mira220_ep: endpoint {
+                    clock-lanes = <0>;
+                    data-lanes = <1 2>;
+                    link-frequencies = /bits/ 64 <750000000>;
+                };
+            };
+        };
+    };
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index da34c7227..5cb93390f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1330,6 +1330,12 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/iio/light/ams,as73211.yaml
 F:	drivers/iio/light/as73211.c
 
+AMS MIRA220 DRIVER
+M:	Philippe Baetens <philippebaetens@gmail.com>
+S:	Maintained
+F:	Documentation/devicetree/bindings/media/i2c/ams,mira220.yaml
+F:	drivers/media/i2c/mira220.c
+
 AMT (Automatic Multicast Tunneling)
 M:	Taehee Yoo <ap420073@gmail.com>
 L:	netdev@vger.kernel.org
-- 
2.39.5