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Message-ID: <20231123-magical-rupture-83251807e995@spud>
Date: Thu, 23 Nov 2023 17:31:35 +0000
From: Conor Dooley <conor@...nel.org>
To: Zhi Mao <zhi.mao@...iatek.com>
Cc: mchehab@...nel.org, robh+dt@...nel.org,
krzysztof.kozlowski+dt@...aro.org, shengnan.wang@...iatek.com,
yaya.chang@...iatek.com, 10572168@...com,
Project_Global_Chrome_Upstream_Group@...iatek.com,
yunkec@...omium.org, conor+dt@...nel.org, matthias.bgg@...il.com,
angelogioacchino.delregno@...labora.com,
jacopo.mondi@...asonboard.com, sakari.ailus@...ux.intel.com,
hverkuil-cisco@...all.nl, heiko@...ech.de,
jernej.skrabec@...il.com, macromorgan@...mail.com,
linus.walleij@...aro.org, laurent.pinchart@...asonboard.com,
hdegoede@...hat.com, tomi.valkeinen@...asonboard.com,
gerald.loacker@...fvision.net, andy.shevchenko@...il.com,
bingbu.cao@...el.com, dan.scally@...asonboard.com,
linux-media@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH 1/2] media: dt-bindings: media: i2c: Document GC08A3
bindings
On Thu, Nov 23, 2023 at 07:51:03PM +0800, Zhi Mao wrote:
> Add YAML device tree binding for GC08A3 CMOS image sensor,
> and the relevant MAINTAINERS entries.
>
> Signed-off-by: Zhi Mao <zhi.mao@...iatek.com>
Please test your bindings.
> ---
> .../bindings/media/i2c/galaxycore,gc08a3.yaml | 128 ++++++++++++++++++
> .../devicetree/bindings/vendor-prefixes.yaml | 2 +
> 2 files changed, 130 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/media/i2c/galaxycore,gc08a3.yaml
>
> diff --git a/Documentation/devicetree/bindings/media/i2c/galaxycore,gc08a3.yaml b/Documentation/devicetree/bindings/media/i2c/galaxycore,gc08a3.yaml
> new file mode 100644
> index 000000000000..089ea321da91
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/i2c/galaxycore,gc08a3.yaml
> @@ -0,0 +1,128 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/i2c/galaxycore,gc08a3.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: GalaxyCore gc08a3 1/4" 8M Pixel MIPI CSI-2 sensor
> +
> +maintainers:
> + - Zhi Mao <zhi.mao@...iatek.com>
> +
> +description: |-
The |- is not needed, you have no formatting to preserve.
> + The gc08a3 is a raw image sensor with an MIPI CSI-2 image data
> + interface and CCI (I2C compatible) control bus. The output format
> + is raw Bayer.
> +
> +properties:
> + compatible:
> + const: GalaxyCore,gc08a3
Please remove the capitals.
> +
> + reg:
> + maxItems: 1
> +
> + clocks:
> + items:
> + - description: Reference to the mclk clock.
Pointless, just use maxItems: 1.
> +
> + assigned-clocks:
> + maxItems: 1
> +
> + assigned-clock-rates:
> + maxItems: 1
> +
> + enable-gpios:
> + description: Reference to the GPIO connected to the RESETB pin. Active low.
> + maxItems: 1
> +
> + vddio-supply:
> + description: Definition of the regulator used for the VDDIO power supply.
> +
> + vdda-supply:
> + description: Definition of the regulator used for the VDDA power supply.
> +
> + vddd-supply:
> + description: Definition of the regulator used for the VDDD power supply.
These descriptions can all be replaced with "foo-supply: true" IMO.
> + port:
> + $ref: /schemas/graph.yaml#/$defs/port-base
> + unevaluatedProperties: false
> +
> + properties:
> + endpoint:
> + $ref: /schemas/media/video-interfaces.yaml#
> + unevaluatedProperties: false
> +
> + properties:
> + data-lanes:
> + oneOf:
> + - items:
> + - const: 1
> + - const: 2
> + - const: 3
> + - const: 4
> + - items:
> + - const: 1
> + - const: 2
> +
> + link-frequencies: true
> +
> + required:
> + - data-lanes
> + - link-frequencies
> +
> +required:
> + - compatible
> + - reg
> + - clocks
> + - assigned-clocks
> + - assigned-clock-rates
Why are these required?
> + - vddio-supply
> + - vdda-supply
> + - vddd-supply
> + - port
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/gpio/gpio.h>
> +
> + i2c {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + sensor0@2 {
> + status = "okay";
> + compatible = "GalaxyCore,gc08a3";
> + reg = <0x31>;
> +
> + clocks = <&topckgen CLK_TOP_CAMTG>,
> + <&topckgen CLK_TOP_UNIVPLL_192M_D8>;
> + clock-names = "xvclk", "freq_mux";
> + clock-frequency = <24000000>;
> +
> + assigned-clocks = <&topckgen CLK_TOP_CAMTG>,
> + <&topckgen CLK_TOP_UNIVPLL_192M_D8>;
> + assigned-clock-parents = <&topckgen CLK_TOP_UNIVPLL_192M_D8>;
> + assigned-clock-rates = <0>, <24000000>;
> +
> + enable-gpios = <&pio 19 GPIO_ACTIVE_HIGH>;
> +
> + pinctrl-names = "default";
> + pinctrl-0 = <&camera_pins_cam0>;
> +
> + avdd-supply = <&mt6359_vfe28_ldo_reg>;
> +
> + port {
> + sensor0_out_2: endpoint {
> + data-lanes = <1 2 3 4>;
> + link-frequencies = /bits/ 64 <336000000 207000000>;
> + remote-endpoint = <&seninf_csi_port_0_in_2>;
> + };
> + };
> + };
> +
> + };
> +
> +...
> diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
> index 309b94c328c8..a0bbec0bfee2 100644
> --- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
> +++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
> @@ -502,6 +502,8 @@ patternProperties:
> description: Fujitsu Ltd.
> "^fxtec,.*":
> description: FX Technology Ltd.
> + "^GalaxyCore,.*":
> + description: GalaxyCore Inc.
> "^gardena,.*":
> description: GARDENA GmbH
> "^gateway,.*":
> --
> 2.25.1
>
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