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* [PATCH] media: dt-bindings: Convert Omnivision OV7251 to DT schema
@ 2023-07-07 21:06 Rob Herring
  2023-07-10 17:56 ` Conor Dooley
  2023-07-31 11:29 ` Sakari Ailus
  0 siblings, 2 replies; 6+ messages in thread
From: Rob Herring @ 2023-07-07 21:06 UTC (permalink / raw)
  To: Mauro Carvalho Chehab, Krzysztof Kozlowski, Conor Dooley,
	Todor Tomov
  Cc: linux-media, devicetree, linux-kernel

Convert the OmniVision OV7251 Image Sensor binding to DT schema format.

vddd-supply was listed as required, but the example and actual user
don't have it. Also, the data brief says it has an internal regulator,
so perhaps it is truly optional.

Signed-off-by: Rob Herring <robh@kernel.org>
---
 .../devicetree/bindings/media/i2c/ov7251.txt  |  52 ---------
 .../bindings/media/i2c/ovti,ov7251.yaml       | 105 ++++++++++++++++++
 2 files changed, 105 insertions(+), 52 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/media/i2c/ov7251.txt
 create mode 100644 Documentation/devicetree/bindings/media/i2c/ovti,ov7251.yaml

diff --git a/Documentation/devicetree/bindings/media/i2c/ov7251.txt b/Documentation/devicetree/bindings/media/i2c/ov7251.txt
deleted file mode 100644
index 8281151f7493..000000000000
--- a/Documentation/devicetree/bindings/media/i2c/ov7251.txt
+++ /dev/null
@@ -1,52 +0,0 @@
-* Omnivision 1/7.5-Inch B&W VGA CMOS Digital Image Sensor
-
-The Omnivision OV7251 is a 1/7.5-Inch CMOS active pixel digital image sensor
-with an active array size of 640H x 480V. It is programmable through a serial
-I2C interface.
-
-Required Properties:
-- compatible: Value should be "ovti,ov7251".
-- clocks: Reference to the xclk clock.
-- clock-names: Should be "xclk".
-- clock-frequency: Frequency of the xclk clock.
-- enable-gpios: Chip enable GPIO. Polarity is GPIO_ACTIVE_HIGH. This corresponds
-  to the hardware pin XSHUTDOWN which is physically active low.
-- vdddo-supply: Chip digital IO regulator.
-- vdda-supply: Chip analog regulator.
-- vddd-supply: Chip digital core regulator.
-
-The device node shall contain one 'port' child node with a single 'endpoint'
-subnode for its digital output video port, in accordance with the video
-interface bindings defined in
-Documentation/devicetree/bindings/media/video-interfaces.txt.
-
-Example:
-
-	&i2c1 {
-		...
-
-		ov7251: camera-sensor@60 {
-			compatible = "ovti,ov7251";
-			reg = <0x60>;
-
-			enable-gpios = <&gpio1 6 GPIO_ACTIVE_HIGH>;
-			pinctrl-names = "default";
-			pinctrl-0 = <&camera_bw_default>;
-
-			clocks = <&clks 200>;
-			clock-names = "xclk";
-			clock-frequency = <24000000>;
-
-			vdddo-supply = <&camera_dovdd_1v8>;
-			vdda-supply = <&camera_avdd_2v8>;
-			vddd-supply = <&camera_dvdd_1v2>;
-
-			port {
-				ov7251_ep: endpoint {
-					clock-lanes = <1>;
-					data-lanes = <0>;
-					remote-endpoint = <&csi0_ep>;
-				};
-			};
-		};
-	};
diff --git a/Documentation/devicetree/bindings/media/i2c/ovti,ov7251.yaml b/Documentation/devicetree/bindings/media/i2c/ovti,ov7251.yaml
new file mode 100644
index 000000000000..8d939858d950
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/ovti,ov7251.yaml
@@ -0,0 +1,105 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/i2c/ovti,ov7251.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: OmniVision OV7251 Image Sensor
+
+description:
+  The Omnivision OV7251 is a 1/7.5-Inch CMOS active pixel digital image sensor
+  with an active array size of 640H x 480V. It is programmable through a serial
+  I2C interface.
+
+maintainers:
+  - Todor Tomov <todor.too@gmail.com>
+
+properties:
+  compatible:
+    const: ovti,ov7251
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    description: XCLK Input Clock
+
+  clock-names:
+    const: xclk
+
+  clock-frequency:
+    description: Frequency of the xclk clock in Hz.
+
+  vdda-supply:
+    description: Analog voltage supply, 2.8 volts
+
+  vddd-supply:
+    description: Digital core voltage supply, 1.2 volts
+
+  vdddo-supply:
+    description: Digital I/O voltage supply, 1.8 volts
+
+  enable-gpios:
+    maxItems: 1
+    description:
+      Reference to the GPIO connected to the XSHUTDOWN pin, if any. Polarity
+      is GPIO_ACTIVE_HIGH.
+
+  port:
+    description: Digital Output Port
+    $ref: /schemas/graph.yaml#/$defs/port-base
+    additionalProperties: false
+
+    properties:
+      endpoint:
+        $ref: /schemas/media/video-interfaces.yaml#
+        unevaluatedProperties: false
+
+        properties:
+          clock-lanes:
+            maximum: 1
+
+          data-lanes:
+            maxItems: 1
+
+        required:
+          - data-lanes
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - vdddo-supply
+  - vdda-supply
+  - port
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        camera@3c {
+            compatible = "ovti,ov7251";
+            reg = <0x3c>;
+            clocks = <&clks 1>;
+            clock-frequency = <24000000>;
+            vdddo-supply = <&ov7251_vdddo_1v8>;
+            vdda-supply = <&ov7251_vdda_2v8>;
+            vddd-supply = <&ov7251_vddd_1v5>;
+            enable-gpios = <&gpio1 19 GPIO_ACTIVE_HIGH>;
+
+            port {
+                ov7251_ep: endpoint {
+                    remote-endpoint = <&csi0_ep>;
+                    clock-lanes = <1>;
+                    data-lanes = <0>;
+                };
+            };
+        };
+    };
+...
-- 
2.40.1


^ permalink raw reply related	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2023-07-31 11:29 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2023-07-07 21:06 [PATCH] media: dt-bindings: Convert Omnivision OV7251 to DT schema Rob Herring
2023-07-10 17:56 ` Conor Dooley
2023-07-10 18:03   ` Rob Herring
2023-07-10 18:20     ` Conor Dooley
2023-07-11 14:09       ` Rob Herring
2023-07-31 11:29 ` Sakari Ailus

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