diff mbox series

[2/4] media: dt-bindings: Add OmniVision OV08X40

Message ID 20240926-b4-master-24-11-25-ov08x40-v1-2-e4d5fbd3b58a@linaro.org (mailing list archive)
State New
Headers show
Series ov08x40: Enable use of ov08x40 on Qualcomm X1E80100 CRD | expand

Commit Message

Bryan O'Donoghue Sept. 26, 2024, 3:46 p.m. UTC
Add bindings for the already upstream OV08X40 to enable usage of this
sensor on dts based systems.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
---
 .../bindings/media/i2c/ovti,ov08x40.yaml           | 130 +++++++++++++++++++++
 1 file changed, 130 insertions(+)

Comments

Sakari Ailus Sept. 26, 2024, 3:53 p.m. UTC | #1
Hi Bryan,

Thanks for the set.

On Thu, Sep 26, 2024 at 04:46:38PM +0100, Bryan O'Donoghue wrote:
> Add bindings for the already upstream OV08X40 to enable usage of this
> sensor on dts based systems.
> 
> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
> ---
>  .../bindings/media/i2c/ovti,ov08x40.yaml           | 130 +++++++++++++++++++++
>  1 file changed, 130 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/media/i2c/ovti,ov08x40.yaml b/Documentation/devicetree/bindings/media/i2c/ovti,ov08x40.yaml
> new file mode 100644
> index 0000000000000000000000000000000000000000..250785f062d0146e8615d8f3e7700aebbd40b1dc
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/i2c/ovti,ov08x40.yaml
> @@ -0,0 +1,130 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +# Copyright (c) 2024 Linaro Ltd.
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/i2c/ovti,ov08x40.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Omnivision OV08X40 CMOS Sensor
> +
> +maintainers:
> +  - Bryan O'Donoghue <bryan.odonoghue@linaro.org>
> +
> +description: |-
> +  The Omnivision OV08X40 is a 9.2 megapixel, CMOS image sensor which supports.
> +  - Automatic black level calibration (ABLC)
> +  - Programmable controls for frame rate, mirror and flip, binning, cropping
> +    and windowing
> +  - Output formats 10-bit 4C RGB RAW, 10-bit Bayer RAW
> +  - 4-lane MIPI D-PHY TX @ 1 Gbps per lane
> +  - 2-lane MPIP D-PHY TX @ 2 Gbps per lane
> +  - Dynamic defect pixel cancellation
> +  - Standard SCCB command interface
> +
> +properties:
> +  compatible:
> +    const: ovti,ov08x40
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  clock-names:
> +    description:
> +      Input clock for the sensor.
> +    items:
> +      - const: xvclk

This seems redundant.

> +
> +  clock-frequency:
> +    description:
> +      Frequency of the xvclk clock in Hertz.

Could you instead use the frequency already set, using assigned-clock* in
the example?

> +
> +  avdd-supply:
> +    description: Analogue circuit voltage supply.
> +
> +  dovdd-supply:
> +    description: I/O circuit voltage supply.
> +
> +  dvdd-supply:
> +    description: Digital circuit voltage supply.
> +
> +  reset-gpios:
> +    description: Active low GPIO connected to XSHUTDOWN pad of the sensor.
> +
> +  port:
> +    $ref: /schemas/graph.yaml#/$defs/port-base
> +    additionalProperties: false
> +
> +    properties:
> +      endpoint:
> +        $ref: /schemas/media/video-interfaces.yaml#
> +        unevaluatedProperties: false
> +
> +        properties:
> +          data-lanes:
> +            oneOf:
> +              - items:
> +                  - const: 1
> +                  - const: 2
> +              - items:
> +                  - const: 1
> +                  - const: 2
> +                  - const: 3
> +                  - const: 4
> +
> +          link-frequencies: true
> +
> +        required:
> +          - data-lanes
> +          - link-frequencies
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - clock-names
> +  - clock-frequency
> +  - dovdd-supply
> +  - avdd-supply
> +  - dvdd-supply
> +  - reset-gpios
> +  - port
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/gpio/gpio.h>
> +
> +    i2c {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        ov08x40: camera@36 {
> +            compatible = "ovti,ov08x40";
> +            reg = <0x36>;
> +
> +            reset-gpios = <&tlmm 111 GPIO_ACTIVE_LOW>;
> +            pinctrl-names = "default";
> +            pinctrl-0 = <&cam_rgb_defaultt>;
> +
> +            clocks = <&ov08x40_clk>;
> +            clock-names = "xvclk";
> +            clock-frequency = <19200000>;
> +
> +            avdd-supply = <&vreg_l7b_2p8>;
> +            dvdd-supply = <&vreg_l7b_1p8>;
> +            dovdd-supply = <&vreg_l3m_1p8>;
> +
> +            port {
> +                ov08x40_ep: endpoint {
> +                    remote-endpoint = <&csiphy4_ep>;
> +                    data-lanes = <1 2 3 4>;
> +                    link-frequencies = /bits/ 64 <400000000>;
> +                };
> +            };
> +        };
> +    };
> +...
>
Rob Herring (Arm) Sept. 26, 2024, 9:04 p.m. UTC | #2
On Thu, Sep 26, 2024 at 04:46:38PM +0100, Bryan O'Donoghue wrote:
> Add bindings for the already upstream OV08X40 to enable usage of this
> sensor on dts based systems.

s/dts/DT/

> 
> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
> ---
>  .../bindings/media/i2c/ovti,ov08x40.yaml           | 130 +++++++++++++++++++++
>  1 file changed, 130 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/media/i2c/ovti,ov08x40.yaml b/Documentation/devicetree/bindings/media/i2c/ovti,ov08x40.yaml
> new file mode 100644
> index 0000000000000000000000000000000000000000..250785f062d0146e8615d8f3e7700aebbd40b1dc
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/i2c/ovti,ov08x40.yaml
> @@ -0,0 +1,130 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +# Copyright (c) 2024 Linaro Ltd.
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/i2c/ovti,ov08x40.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Omnivision OV08X40 CMOS Sensor
> +
> +maintainers:
> +  - Bryan O'Donoghue <bryan.odonoghue@linaro.org>
> +
> +description: |-

Drop the '-'.

> +  The Omnivision OV08X40 is a 9.2 megapixel, CMOS image sensor which supports.

supports:

> +  - Automatic black level calibration (ABLC)
> +  - Programmable controls for frame rate, mirror and flip, binning, cropping
> +    and windowing
> +  - Output formats 10-bit 4C RGB RAW, 10-bit Bayer RAW
> +  - 4-lane MIPI D-PHY TX @ 1 Gbps per lane
> +  - 2-lane MPIP D-PHY TX @ 2 Gbps per lane
> +  - Dynamic defect pixel cancellation
> +  - Standard SCCB command interface
> +
Bryan O'Donoghue Sept. 26, 2024, 11:31 p.m. UTC | #3
On 26/09/2024 16:53, Sakari Ailus wrote:
>> +      - const: xvclk
> This seems redundant.

Right so you're saying you'd prefer something like this

drivers/media/i2c/ov8865.c

I can drop the dependency on "xvclk" as a dependency in this series.

>> +
>> +  clock-frequency:
>> +    description:
>> +      Frequency of the xvclk clock in Hertz.
> Could you instead use the frequency already set, using assigned-clock* in
> the example?

Almost certainly yes.

Yeah, I do that so.

---
bod
Krzysztof Kozlowski Sept. 28, 2024, 8:24 a.m. UTC | #4
On 27/09/2024 01:31, Bryan O'Donoghue wrote:
> On 26/09/2024 16:53, Sakari Ailus wrote:
>>> +      - const: xvclk
>> This seems redundant.
> 
> Right so you're saying you'd prefer something like this
> 
> drivers/media/i2c/ov8865.c
> 
> I can drop the dependency on "xvclk" as a dependency in this series.

Not sure what do you mean here. Drop the clock-names and
clock-frequency. Both are redundant. You should almost never have a
clock-frequency in your device bindings.

Best regards,
Krzysztof
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/media/i2c/ovti,ov08x40.yaml b/Documentation/devicetree/bindings/media/i2c/ovti,ov08x40.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..250785f062d0146e8615d8f3e7700aebbd40b1dc
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/ovti,ov08x40.yaml
@@ -0,0 +1,130 @@ 
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright (c) 2024 Linaro Ltd.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/i2c/ovti,ov08x40.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Omnivision OV08X40 CMOS Sensor
+
+maintainers:
+  - Bryan O'Donoghue <bryan.odonoghue@linaro.org>
+
+description: |-
+  The Omnivision OV08X40 is a 9.2 megapixel, CMOS image sensor which supports.
+  - Automatic black level calibration (ABLC)
+  - Programmable controls for frame rate, mirror and flip, binning, cropping
+    and windowing
+  - Output formats 10-bit 4C RGB RAW, 10-bit Bayer RAW
+  - 4-lane MIPI D-PHY TX @ 1 Gbps per lane
+  - 2-lane MPIP D-PHY TX @ 2 Gbps per lane
+  - Dynamic defect pixel cancellation
+  - Standard SCCB command interface
+
+properties:
+  compatible:
+    const: ovti,ov08x40
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    description:
+      Input clock for the sensor.
+    items:
+      - const: xvclk
+
+  clock-frequency:
+    description:
+      Frequency of the xvclk clock in Hertz.
+
+  avdd-supply:
+    description: Analogue circuit voltage supply.
+
+  dovdd-supply:
+    description: I/O circuit voltage supply.
+
+  dvdd-supply:
+    description: Digital circuit voltage supply.
+
+  reset-gpios:
+    description: Active low GPIO connected to XSHUTDOWN pad of the sensor.
+
+  port:
+    $ref: /schemas/graph.yaml#/$defs/port-base
+    additionalProperties: false
+
+    properties:
+      endpoint:
+        $ref: /schemas/media/video-interfaces.yaml#
+        unevaluatedProperties: false
+
+        properties:
+          data-lanes:
+            oneOf:
+              - items:
+                  - const: 1
+                  - const: 2
+              - items:
+                  - const: 1
+                  - const: 2
+                  - const: 3
+                  - const: 4
+
+          link-frequencies: true
+
+        required:
+          - data-lanes
+          - link-frequencies
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - clock-frequency
+  - dovdd-supply
+  - avdd-supply
+  - dvdd-supply
+  - reset-gpios
+  - port
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        ov08x40: camera@36 {
+            compatible = "ovti,ov08x40";
+            reg = <0x36>;
+
+            reset-gpios = <&tlmm 111 GPIO_ACTIVE_LOW>;
+            pinctrl-names = "default";
+            pinctrl-0 = <&cam_rgb_defaultt>;
+
+            clocks = <&ov08x40_clk>;
+            clock-names = "xvclk";
+            clock-frequency = <19200000>;
+
+            avdd-supply = <&vreg_l7b_2p8>;
+            dvdd-supply = <&vreg_l7b_1p8>;
+            dovdd-supply = <&vreg_l3m_1p8>;
+
+            port {
+                ov08x40_ep: endpoint {
+                    remote-endpoint = <&csiphy4_ep>;
+                    data-lanes = <1 2 3 4>;
+                    link-frequencies = /bits/ 64 <400000000>;
+                };
+            };
+        };
+    };
+...