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Message-ID: <ZICR2euf7f7Kay8y@tom-HP-ZBook-Fury-15-G7-Mobile-Workstation>
Date: Wed, 7 Jun 2023 16:19:05 +0200
From: Tommaso Merciai <tomm.merciai@...il.com>
To: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc: jacopo.mondi@...asonboard.com, martin.hecht@...et.eu,
michael.roeder@...et.eu, linuxfancy@...glegroups.com,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>,
Sakari Ailus <sakari.ailus@...ux.intel.com>,
Hans Verkuil <hverkuil@...all.nl>,
Marco Felsch <m.felsch@...gutronix.de>,
Gerald Loacker <gerald.loacker@...fvision.net>,
Mikhail Rudenko <mike.rudenko@...il.com>,
Nicholas Roth <nicholas@...hemail.net>,
Linus Walleij <linus.walleij@...aro.org>,
Michael Riesch <michael.riesch@...fvision.net>,
Benjamin Mugnier <benjamin.mugnier@...s.st.com>,
Krzysztof Hałasa <khalasa@...p.pl>,
Shawn Tu <shawnx.tu@...el.com>, linux-media@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 2/3] media: dt-bindings: alvium: add document YAML
binding
On Wed, Jun 07, 2023 at 05:06:38PM +0300, Laurent Pinchart wrote:
> On Wed, Jun 07, 2023 at 03:19:24PM +0200, Tommaso Merciai wrote:
> > Add documentation of device tree in YAML schema for the ALVIUM
> > Camera from Allied Vision Inc.
> >
> > References:
> > - https://www.alliedvision.com/en/products/embedded-vision-solutions
> >
> > Signed-off-by: Tommaso Merciai <tomm.merciai@...il.com>
> > Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
> > ---
> > Changes since v1:
> > - Fixed build error as suggested by RHerring bot
> >
> > Changes since v2:
> > - Fixed License as suggested by KKozlowski/CDooley
> > - Removed rotation property as suggested by CDooley/LPinchart
> > - Fixed example node name as suggested by CDooley
> > - Fixed title as suggested by LPinchart
> > - Fixed compatible name as suggested by LPinchart
> > - Removed clock as suggested by LPinchart
> > - Removed gpios not as suggested by LPinchart
> > - Renamed property name streamon-delay into alliedvision,lp2hs-delay-us
> > - Fixed vendor prefix, unit append as suggested by KKozlowski
> > - Fixed data-lanes
> > - Fixed blank space + example indentation (from 6 -> 4 space) as suggested by KKozlowski
> > - Dropped status into example as suggested by KKozlowski
> > - Added vcc-ext-in supply as suggested by LPinchart
> > - Dropped pinctrl into example as suggested by LPinchart
> >
> > Changes since v3:
> > - Fixed vcc-ext-in-supply description as suggested by LPinchart
> > - Fixed alliedvision,lp2hs-delay-us description as suggested by LPinchart
> > - Added maximum to alliedvision,lp2hs-delay-us as suggested by LPinchart
> > - Collected Reviewed-by tag from LPinchart
> >
> > .../media/i2c/alliedvision,alvium-csi2.yaml | 96 +++++++++++++++++++
> > 1 file changed, 96 insertions(+)
> > create mode 100644 Documentation/devicetree/bindings/media/i2c/alliedvision,alvium-csi2.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/media/i2c/alliedvision,alvium-csi2.yaml b/Documentation/devicetree/bindings/media/i2c/alliedvision,alvium-csi2.yaml
> > new file mode 100644
> > index 000000000000..4726d0068229
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/media/i2c/alliedvision,alvium-csi2.yaml
> > @@ -0,0 +1,96 @@
> > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/media/i2c/alliedvision,alvium.yaml#
>
> This is still wrong, see Rob's bot reply in the previous version.
Arg... :'(
Thanks Laurent.
Regards,
Tommaso
>
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Allied Vision Alvium Camera
> > +
> > +maintainers:
> > + - Tommaso Merciai <tomm.merciai@...il.com>
> > + - Martin Hecht <martin.hecht@...et.eu>
> > +
> > +allOf:
> > + - $ref: /schemas/media/video-interface-devices.yaml#
> > +
> > +properties:
> > + compatible:
> > + const: alliedvision,alvium-csi2
> > +
> > + reg:
> > + maxItems: 1
> > +
> > + vcc-ext-in-supply:
> > + description: |
> > + The regulator that supplies power to the VCC_EXT_IN pins.
> > +
> > + alliedvision,lp2hs-delay-us:
> > + maximum: 150000
> > + description: |
> > + Low power to high speed delay time.
> > +
> > + If the value is larger than 0, the camera forces a reset of all
> > + D-PHY lanes for the duration specified by this property. All lanes
> > + will transition to the low-power state and back to the high-speed
> > + state after the delay. Otherwise the lanes will transition to and
> > + remain in the high-speed state immediately after power on.
> > +
> > + This is meant to help CSI-2 receivers synchronizing their D-PHY
> > + RX.
> > +
> > + 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:
> > + link-frequencies: true
> > +
> > + data-lanes:
> > + minItems: 1
> > + items:
> > + - const: 1
> > + - const: 2
> > + - const: 3
> > + - const: 4
> > +
> > + required:
> > + - data-lanes
> > + - link-frequencies
> > +
> > +required:
> > + - compatible
> > + - reg
> > + - vcc-ext-in-supply
> > + - port
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > + - |
> > + i2c {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + alvium: camera@3c {
> > + compatible = "alliedvision,alvium-csi2";
> > + reg = <0x3c>;
> > + vcc-ext-in-supply = <®_vcc_ext_in>;
> > + alliedvision,lp2hs-delay-us = <20>;
> > +
> > + port {
> > + alvium_out: endpoint {
> > + remote-endpoint = <&mipi_csi_0_in>;
> > + data-lanes = <1 2 3 4>;
> > + link-frequencies = /bits/ 64 <681250000>;
> > + };
> > + };
> > + };
> > + };
> > +
> > +...
>
> --
> Regards,
>
> Laurent Pinchart
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