[PATCH v3 1/2] dt-bindings: media: i2c: Add bindings for AP1302 and AR0144

[Frank Li <Frank.Li@nxp.com>]

From: Anil Kumar Mamidala <anil.mamidala@xilinx.com>

The AP1302 is a standalone ISP for ON Semiconductor sensors, which can
connect RAW sensors (AR0144).

Add corresponding DT bindings.

Signed-off-by: Anil Kumar Mamidala <anil.mamidala@xilinx.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Stefan Hladnik <stefan.hladnik@gmail.com>
Signed-off-by: Florian Rebaudo <frebaudo@witekio.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
Previous try:
https://lore.kernel.org/linux-media/1631091372-16191-2-git-send-email-anil.mamidala@xilinx.com/

Change in v3:
- Move sensors under ports
- use compatible string to indentify connected raw sensors
- Add onnn,ar0144.yaml
---
 .../devicetree/bindings/media/i2c/onnn,ap1302.yaml | 151 +++++++++++++++++++++
 .../devicetree/bindings/media/i2c/onnn,ar0144.yaml |  75 ++++++++++
 MAINTAINERS                                        |   9 ++
 3 files changed, 235 insertions(+)

diff --git a/Documentation/devicetree/bindings/media/i2c/onnn,ap1302.yaml b/Documentation/devicetree/bindings/media/i2c/onnn,ap1302.yaml
new file mode 100644
index 0000000000000..6b745dcf3fd3f
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/onnn,ap1302.yaml
@@ -0,0 +1,151 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/i2c/onnn,ap1302.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ON Semiconductor AP1302 Advanced Image Coprocessor
+
+maintainers:
+  - Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+  - Anil Kumar M <anil.mamidala@xilinx.com>
+
+description:
+  The AP1302 is a standalone ISP for ON Semiconductor sensors. It interfaces to
+  up to two RAW CMOS sensors over MIPI CSI-2 connections, processes the two
+  video streams and outputs YUV frames to the host over a MIPI CSI-2 interface.
+  Frames are output side by side or on two virtual channels.
+
+  The sensors must be identical. They are connected to the AP1302 on dedicated
+  I2C buses, and are controlled by the AP1302 firmware. They are not accessible
+  from the host.
+
+properties:
+  compatible:
+    const: onnn,ap1302
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description:
+          Reference to the CLK clock.
+
+  reset-gpios:
+    items:
+      - description:
+          Reference to the GPIO connected to the RST pin (active low).
+
+  standby-gpios:
+    items:
+      - description:
+          Reference to the GPIO connected to the STANDBY pin (active high).
+
+  enable-gpios:
+    items:
+      - description:
+          Reference to the GPIO connected to the EN pin (active high).
+
+  dvdd-supply: true
+
+  hmisc-supply: true
+
+  smisc-supply: true
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+    unevaluatedProperties: false
+
+    patternProperties:
+      "^port@[01]":
+        description:
+          Sensors connected to the first and second input, if no sensor
+          connect, isp generate test pattern. The compatible string under
+          port@0 and port@1 have to be the same.
+
+        allOf:
+          - $ref: /schemas/graph.yaml#/$defs/port-base
+          - $ref: onnn,ar0144.yaml
+
+        unevaluatedProperties: false
+
+    properties:
+      port@2:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+        properties:
+          endpoint:
+            $ref: /schemas/media/video-interfaces.yaml#
+            unevaluatedProperties: false
+            properties:
+              clock-noncontinuous:
+                type: boolean
+
+              data-lanes:
+                oneOf:
+                  - items:
+                      - const: 1
+                  - items:
+                      - const: 1
+                      - const: 2
+                  - items:
+                      - const: 1
+                      - const: 2
+                      - const: 3
+                      - const: 4
+
+            required:
+              - data-lanes
+
+    required:
+      - port@2
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - ports
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        camera@3c {
+            compatible = "onnn,ap1302";
+            reg = <0x3c>;
+
+            clocks = <&clk24mhz>;
+
+            reset-gpios = <&pio 102 GPIO_ACTIVE_LOW>;
+            standby-gpios = <&pio 40 GPIO_ACTIVE_HIGH>;
+
+            ports {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                port@0 {
+                    compatible = "onnn,ar0144";
+                    reg = <0>;
+                    vaa-supply = <&vaa_regulator>;
+                };
+
+                port@2 {
+                    reg = <2>;
+
+                    endpoint {
+                        remote-endpoint = <&seninf_in1>;
+                        clock-noncontinuous;
+                        data-lanes = <1 2 3 4>;
+                    };
+                };
+            };
+        };
+    };
+...
diff --git a/Documentation/devicetree/bindings/media/i2c/onnn,ar0144.yaml b/Documentation/devicetree/bindings/media/i2c/onnn,ar0144.yaml
new file mode 100644
index 0000000000000..68562cf4c00ca
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/onnn,ar0144.yaml
@@ -0,0 +1,75 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/i2c/onnn,ar0144.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ON Semiconductor AP0144 RAW CMOS sensor
+
+maintainers:
+  - Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+  - Anil Kumar M <anil.mamidala@xilinx.com>
+
+description:
+  AP0144 RAW CMOS can be use standalone with any SOCs, or work with AP1302
+  ISP.
+
+properties:
+  compatible:
+    enum:
+      - onnn,ar0144
+      - onnn,ar0330
+      - onnn,ar1335
+
+  reg:
+    maxItems: 1
+
+  vaa-supply: true
+
+  vdd-supply: true
+
+  vddio-supply: true
+
+  vddpll-supply: true
+
+  port:
+    $ref: /schemas/graph.yaml#/$defs/port-base
+    additionalProperties: false
+
+    properties:
+      endpoint:
+        $ref: /schemas/media/video-interfaces.yaml#
+        unevaluatedProperties: false
+
+required:
+  - compatible
+  - reg
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          not:
+            contains:
+              const: onnn,ar0330
+    then:
+      properties:
+        vddpll-supply: false
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        camera@10 {
+            compatible = "onnn,ar0144";
+            reg = <0x10>;
+            vaa-supply = <&vaa>;
+            vddio-supply = <&vddio>;
+            vdd-supply = <&vdd>;
+        };
+    };
+
diff --git a/MAINTAINERS b/MAINTAINERS
index d6f1670290589..1362d351f2574 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1766,6 +1766,15 @@ L:	linux-sound@vger.kernel.org
 S:	Maintained
 F:	sound/aoa/
 
+AP1302 ON SEMICONDUCTOR ISP DRIVER
+M:	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+R:	Frank Li <Frank.Li@nxp.com>
+L:	linux-media@vger.kernel.org
+S:	Maintained
+T:	git git://linuxtv.org/media.git
+F:	Documentation/devicetree/bindings/media/i2c/onnn,ap1302.yaml
+F:	Documentation/devicetree/bindings/media/i2c/onnn,ar0144.yaml
+
 APEX EMBEDDED SYSTEMS STX104 IIO DRIVER
 M:	William Breathitt Gray <wbg@kernel.org>
 L:	linux-iio@vger.kernel.org

-- 
2.34.1