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Date: Tue, 5 Jul 2022 18:00:20 +0200
From: Quentin Schulz <quentin.schulz@...obroma-systems.com>
To: Quentin Schulz <foss+kernel@...il.net>
Cc: shawnx.tu@...el.com, mchehab@...nel.org, robh+dt@...nel.org,
krzysztof.kozlowski+dt@...aro.org, linux-media@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: Re: [PATCH v7 1/4] media: dt-bindings: ov5675: document YAML binding
Hi all,
Any additional feedback to give on the series?
Thanks,
Quentin
On 6/8/22 15:44, Quentin Schulz wrote:
> From: Quentin Schulz <quentin.schulz@...obroma-systems.com>
>
> This patch adds documentation of device tree in YAML schema for the
> OV5675 CMOS image sensor from Omnivision.
>
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> Signed-off-by: Quentin Schulz <quentin.schulz@...obroma-systems.com>
> ---
>
> v4:
> - added Reviewed-by,
>
> v3:
> - removed clock-names,
> - removed clock-frequency,
> - added all-of of video-interface-devices schema,
> - added clock frequency range in description,
> - rephrased definition of supplies,
> - fixed name of reset gpio,
> - used schema ref for port and port->endpoint,
> - removed mentions to driver,
> - added HW data transfer speed limitation in comment for
> link-frequencies,
> - changed root additionalProperties to unevaluatedProperties to not
> have to list all properties from video-interface-devices schema, such as
> orientation or rotation,
> - added maxItems to reset-gpios,
> - updated example to use assigned-clocks and assigned-clock-rates
> instead of clock-frequency and clock-names,
>
> v2:
> - fixed incorrect id,
> - fixed device tree example by adding missing dt-bindings headers,
> - fixed device tree example by using vcc_1v2 for dvdd supply, as requested
> in datasheet,
>
> .../bindings/media/i2c/ovti,ov5675.yaml | 123 ++++++++++++++++++
> MAINTAINERS | 1 +
> 2 files changed, 124 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/media/i2c/ovti,ov5675.yaml
>
> diff --git a/Documentation/devicetree/bindings/media/i2c/ovti,ov5675.yaml b/Documentation/devicetree/bindings/media/i2c/ovti,ov5675.yaml
> new file mode 100644
> index 000000000000..f0a48707bed7
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/i2c/ovti,ov5675.yaml
> @@ -0,0 +1,123 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +# Copyright (c) 2022 Theobroma Systems Design und Consulting GmbH
> +%YAML 1.2
> +---
> +$id: https://urldefense.proofpoint.com/v2/url?u=http-3A__devicetree.org_schemas_media_i2c_ovti-2Cov5675.yaml-23&d=DwIDAg&c=_sEr5x9kUWhuk4_nFwjJtA&r=LYjLexDn7rXIzVmkNPvw5ymA1XTSqHGq8yBP6m6qZZ4njZguQhZhkI_-172IIy1t&m=hkLsYZWMEhpLI6ShhGo0x3Jiuqy6R6W720Ntjy_xiWib19fmlU43ao0fGq1ALlC0&s=dJP3Z1NZNxGh-udGBCMYQKpHV17u1R0DloWk1smrUPE&e=
> +$schema: https://urldefense.proofpoint.com/v2/url?u=http-3A__devicetree.org_meta-2Dschemas_core.yaml-23&d=DwIDAg&c=_sEr5x9kUWhuk4_nFwjJtA&r=LYjLexDn7rXIzVmkNPvw5ymA1XTSqHGq8yBP6m6qZZ4njZguQhZhkI_-172IIy1t&m=hkLsYZWMEhpLI6ShhGo0x3Jiuqy6R6W720Ntjy_xiWib19fmlU43ao0fGq1ALlC0&s=hJpvHfydAEL-abkbxj-ZSKxgR5wrNKozJb-oj-TaIfc&e=
> +
> +title: Omnivision OV5675 CMOS Sensor
> +
> +maintainers:
> + - Quentin Schulz <quentin.schulz@...obroma-systems.com>
> +
> +allOf:
> + - $ref: /schemas/media/video-interface-devices.yaml#
> +
> +description: |
> + The Omnivision OV5675 is a high performance, 1/5-inch, 5 megapixel, CMOS
> + image sensor that delivers 2592x1944 at 30fps. It provides full-frame,
> + sub-sampled, and windowed 10-bit MIPI images in various formats via the
> + Serial Camera Control Bus (SCCB) interface.
> +
> + This chip is programmable through I2C and two-wire SCCB. The sensor output
> + is available via CSI-2 serial data output (up to 2-lane).
> +
> +properties:
> + compatible:
> + const: ovti,ov5675
> +
> + reg:
> + maxItems: 1
> +
> + clocks:
> + description:
> + System input clock (aka XVCLK). From 6 to 27 MHz.
> + maxItems: 1
> +
> + dovdd-supply:
> + description:
> + Digital I/O voltage supply, 1.8 volts.
> +
> + avdd-supply:
> + description:
> + Analog voltage supply, 2.8 volts.
> +
> + dvdd-supply:
> + description:
> + Digital core voltage supply, 1.2 volts.
> +
> + reset-gpios:
> + description:
> + The phandle and specifier for the GPIO that controls sensor reset.
> + This corresponds to the hardware pin XSHUTDN which is physically
> + active low.
> + maxItems: 1
> +
> + port:
> + $ref: /schemas/graph.yaml#/$defs/port-base
> + additionalProperties: false
> +
> + properties:
> + endpoint:
> + $ref: /schemas/media/video-interfaces.yaml#
> + unevaluatedProperties: false
> +
> + properties:
> + data-lanes:
> + minItems: 1
> + maxItems: 2
> +
> + # Supports max data transfer of 900 Mbps per lane
> + link-frequencies: true
> +
> +required:
> + - compatible
> + - reg
> + - clocks
> + - dovdd-supply
> + - avdd-supply
> + - dvdd-supply
> + - port
> +
> +unevaluatedProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/px30-cru.h>
> + #include <dt-bindings/gpio/gpio.h>
> + #include <dt-bindings/pinctrl/rockchip.h>
> +
> + i2c {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + ov5675: camera@36 {
> + compatible = "ovti,ov5675";
> + reg = <0x36>;
> +
> + reset-gpios = <&gpio2 RK_PB1 GPIO_ACTIVE_LOW>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&cif_clkout_m0>;
> +
> + clocks = <&cru SCLK_CIF_OUT>;
> + assigned-clocks = <&cru SCLK_CIF_OUT>;
> + assigned-clock-rates = <19200000>;
> +
> + avdd-supply = <&vcc_1v8>;
> + dvdd-supply = <&vcc_1v2>;
> + dovdd-supply = <&vcc_2v8>;
> +
> + rotation = <90>;
> + orientation = <0>;
> +
> + port {
> + ucam_out: endpoint {
> + remote-endpoint = <&mipi_in_ucam>;
> + data-lanes = <1 2>;
> + link-frequencies = /bits/ 64 <450000000>;
> + };
> + };
> + };
> + };
> +...
> +
> diff --git a/MAINTAINERS b/MAINTAINERS
> index a6d3bd9d2a8d..302983893831 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -14703,6 +14703,7 @@ M: Shawn Tu <shawnx.tu@...el.com>
> L: linux-media@...r.kernel.org
> S: Maintained
> T: git git://linuxtv.org/media_tree.git
> +F: Documentation/devicetree/bindings/media/i2c/ovti,ov5675.yaml
> F: drivers/media/i2c/ov5675.c
>
> OMNIVISION OV5693 SENSOR DRIVER
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