[PATCH] dt-bindings: media: Add Omnivision ov8858 binding

[Nicholas Roth <nicholas@rothemail.net>]

Add a device tree binding for the Omnivision OV8858 image sensor.
The OV8858 is an 8 megapixel image sensor which provides images in RAW
format over MIPI CSI-2 data bus and is controlled through an
I2C-compatibile SCCB bus.

Tested on PinePhone Pro with libcamera cam and qcam.

Signed-off-by: Nicholas Roth <nicholas@rothemail.net>
---
 .../bindings/i2c/ovti,ov8858-i2c.yaml         | 78 +++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/i2c/ovti,ov8858-i2c.yaml

diff --git a/Documentation/devicetree/bindings/i2c/ovti,ov8858-i2c.yaml b/Documentation/devicetree/bindings/i2c/ovti,ov8858-i2c.yaml
new file mode 100644
index 000000000000..1300c1b6fa17
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/ovti,ov8858-i2c.yaml
@@ -0,0 +1,78 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/i2c-imx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale Inter IC (I2C) and High Speed Inter IC (HS-I2C) for OV8858
+
+allOf:
+  - $ref: /schemas/i2c/i2c-controller.yaml#
+
+properties:
+  compatible: ovti,ov8858
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    const: xvclk
+
+  clock-frequency:
+    minimum: 24000000
+    default: 24000000
+    maximum: 24000000
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    i2c@ff110000 {
+        status = "okay";
+
+        clock-frequency = <400000>;
+        i2c-scl-rising-time-ns = <300>;
+        i2c-scl-falling-time-ns = <15>;
+        
+        pinctrl-0 = <&i2c1_xfer &cif_clkouta>;
+        
+        assigned-clocks = <&cru SCLK_CIF_OUT &cru SCLK_CIF_OUT_SRC>;
+        assigned-clock-parents = <&cru SCLK_CIF_OUT_SRC &cru PLL_GPLL>;
+        assigned-clock-rates = <19200000 0>;
+        ucam: camera@36 {
+            compatible = "ovti,ov8858";
+            reg = <0x36>;
+            pinctrl-names = "default";
+            pinctrl-0 = <&ucam_pdn &ucam_rst>;
+
+            clocks = <&cru SCLK_CIF_OUT>;
+            clock-names = "xvclk";
+
+            dovdd-supply = <&vcc1v8_dvp>;
+            /*XXX: also depends on vcca1v8_codec for I2C bus power */
+
+            reset-gpios = <&gpio1 RK_PA4 GPIO_ACTIVE_LOW>;
+            powerdown-gpios = <&gpio2 RK_PB4 GPIO_ACTIVE_LOW>;
+
+            rotation = <180>;
+
+            port {
+                ucam_out: endpoint {
+                    remote-endpoint = <&mipi_in_ucam>;
+                    data-lanes = <1 2 3 4>;
+                };
+            };
+        };
+    };
-- 
2.34.1