[PATCH v3 1/2] dt-bindings: media: i2c: Add IMX296 CMOS sensor binding

[Laurent Pinchart <laurent.pinchart@ideasonboard.com>]

From: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

Add YAML devicetree binding for IMX296 CMOS image sensor. Let's also
add MAINTAINERS entry for the binding and driver.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
Changes since v2:

- Add model-specific compatible strings

Changes since v4 (in separate series):

- Rename to sony,imx296.yaml
- Add Laurent Pinchart as maintainer
- Rename power supplies
- Rename clock to INCK
- Drop clock-frequency property
- Reference OF graph DT schema
- Mention reset GPIO pin name
- Fix schema $id
- Fix port
---
 .../bindings/media/i2c/sony,imx296.yaml       | 106 ++++++++++++++++++
 MAINTAINERS                                   |   8 ++
 2 files changed, 114 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/i2c/sony,imx296.yaml

diff --git a/Documentation/devicetree/bindings/media/i2c/sony,imx296.yaml b/Documentation/devicetree/bindings/media/i2c/sony,imx296.yaml
new file mode 100644
index 000000000000..65ad9c100e45
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/sony,imx296.yaml
@@ -0,0 +1,106 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/i2c/sony,imx296.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sony IMX296 1/2.8-Inch CMOS Image Sensor
+
+maintainers:
+  - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+  - Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+
+description: |-
+  The Sony IMX296 is a 1/2.9-Inch active pixel type CMOS Solid-state image
+  sensor with square pixel array and 1.58 M effective pixels. This chip
+  features a global shutter with variable charge-integration time. It is
+  programmable through I2C and 4-wire interfaces. The sensor output is
+  available via CSI-2 serial data output (1 Lane).
+
+properties:
+  compatible:
+    enum:
+      - sony,imx296
+      - sony,imx296ll
+      - sony,imx296lq
+    description:
+      The IMX296 sensor exists in two different models, a colour variant
+      (IMX296LQ) and a monochrome variant (IMX296LL). The device exposes the
+      model through registers, allowing for auto-detection with a common
+      "sony,imx296" compatible string. However, some camera modules disable the
+      ability to read the sensor model register, which disables this feature.
+      In those cases, the exact model needs to be specified as "sony,imx296ll"
+      or "sony,imx296lq".
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    description: Input clock (37.125 MHz, 54 MHz or 74.25 MHz)
+    items:
+      - const: inck
+
+  avdd-supply:
+    description: Analog power supply (3.3V)
+
+  dvdd-supply:
+    description: Digital power supply (1.2V)
+
+  ovdd-supply:
+    description: Interface power supply (1.8V)
+
+  reset-gpios:
+    description: Sensor reset (XCLR) GPIO
+    maxItems: 1
+
+  port:
+    $ref: /schemas/graph.yaml#/properties/port
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - avdd-supply
+  - dvdd-supply
+  - ovdd-supply
+  - port
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        imx296: camera-sensor@1a {
+            compatible = "sony,imx296";
+            reg = <0x1a>;
+
+            pinctrl-names = "default";
+            pinctrl-0 = <&camera_rear_default>;
+
+            clocks = <&gcc 90>;
+            clock-names = "inck";
+
+            avdd-supply = <&camera_vdda_3v3>;
+            dvdd-supply = <&camera_vddd_1v2>;
+            ovdd-supply = <&camera_vddo_1v8>;
+
+            reset-gpios = <&msmgpio 35 GPIO_ACTIVE_LOW>;
+
+            port {
+                imx296_ep: endpoint {
+                    remote-endpoint = <&csiphy0_ep>;
+                };
+            };
+        };
+    };
+
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 9d7f64dc0efe..34e5b6e43f88 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -18959,6 +18959,14 @@ T:	git git://linuxtv.org/media_tree.git
 F:	Documentation/devicetree/bindings/media/i2c/imx290.txt
 F:	drivers/media/i2c/imx290.c
 
+SONY IMX296 SENSOR DRIVER
+M:	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+M:	Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+L:	linux-media@vger.kernel.org
+S:	Maintained
+T:	git git://linuxtv.org/media_tree.git
+F:	Documentation/devicetree/bindings/media/i2c/sony,imx296.yaml
+
 SONY IMX319 SENSOR DRIVER
 M:	Bingbu Cao <bingbu.cao@intel.com>
 L:	linux-media@vger.kernel.org
-- 
Regards,

Laurent Pinchart