From: Rob Herring <robh@kernel.org>
To: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Cc: linux-renesas-soc@vger.kernel.org, linux-media@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
"Mauro Carvalho Chehab" <mchehab@kernel.org>,
"Kieran Bingham" <kieran.bingham@ideasonboard.com>,
"Laurent Pinchart" <laurent.pinchart@ideasonboard.com>,
"Jacopo Mondi" <jacopo@jmondi.org>,
"Niklas Söderlund" <niklas.soderlund@ragnatech.se>,
"Mark Rutland" <mark.rutland@arm.com>,
sakari.ailus@iki.fi, "Hans Verkuil" <hverkuil@xs4all.nl>,
"Laurent Pinchart" <laurent.pinchart+renesas@ideasonboard.com>,
"Jacopo Mondi" <jacopo+renesas@jmondi.org>,
"Niklas Söderlund" <niklas.soderlund+renesas@ragnatech.se>
Subject: Re: [PATCH v6 1/2] dt-bindings: media: i2c: Add bindings for Maxim Integrated MAX9286
Date: Wed, 18 Dec 2019 12:13:52 -0600 [thread overview]
Message-ID: <20191218181352.GA6385@bogus> (raw)
In-Reply-To: <20191211124459.20508-2-kieran.bingham+renesas@ideasonboard.com>
On Wed, Dec 11, 2019 at 12:44:58PM +0000, Kieran Bingham wrote:
> From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
>
> The MAX9286 deserializes video data received on up to 4 Gigabit
> Multimedia Serial Links (GMSL) and outputs them on a CSI-2 port using up
> to 4 data lanes.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
> Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
> Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
> Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
> ---
> .../bindings/media/i2c/maxim,max9286.yaml | 289 ++++++++++++++++++
> 1 file changed, 289 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml
A couple of nits, with those fixed:
Reviewed-by: Rob Herring <robh@kernel.org>
>
> diff --git a/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml b/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml
> new file mode 100644
> index 000000000000..d37ea2c432f6
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml
> @@ -0,0 +1,289 @@
> +# SPDX-License-Identifier: GPL-2.0-only
Dual license new bindings please:
(GPL-2.0-only OR BSD-2-Clause)
> +# Copyright (C) 2019 Renesas Electronics Corp.
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/i2c/maxim,max9286.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Maxim Integrated Quad GMSL Deserializer
> +
> +maintainers:
> + - Jacopo Mondi <jacopo+renesas@jmondi.org>
> + - Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
> + - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
> + - Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
> +
> +description: -|
I usually see '|-', but I guess that works.
> + The MAX9286 deserializer receives video data on up to 4 Gigabit Multimedia
> + Serial Links (GMSL) and outputs them on a CSI-2 D-PHY port using up to 4 data
> + lanes.
> +
> + In addition to video data, the GMSL links carry a bidirectional control
> + channel that encapsulates I2C messages. The MAX9286 forwards all I2C traffic
> + not addressed to itself to the other side of the links, where a GMSL
> + serializer will output it on a local I2C bus. In the other direction all I2C
> + traffic received over GMSL by the MAX9286 is output on the local I2C bus.
> +
> +properties:
> + '#address-cells':
> + const: 1
> +
> + '#size-cells':
> + const: 0
> +
> + compatible:
> + const: maxim,max9286
> +
> + reg:
> + description: I2C device address
> + maxItems: 1
> +
> + poc-supply:
> + description: Regulator providing Power over Coax to the cameras
> + maxItems: 1
> +
> + enable-gpios:
> + description: GPIO connected to the \#PWDN pin with inverted polarity
> + maxItems: 1
> +
> + ports:
> + type: object
> + description: -|
> + The connections to the MAX9286 GMSL and its endpoint nodes are modelled
> + using the OF graph bindings in accordance with the video interface
> + bindings defined in
> + Documentation/devicetree/bindings/media/video-interfaces.txt.
> +
> + The following table lists the port number corresponding to each device
> + port.
> +
> + Port Description
> + ----------------------------------------
> + Port 0 GMSL Input 0
> + Port 1 GMSL Input 1
> + Port 2 GMSL Input 2
> + Port 3 GMSL Input 3
> + Port 4 CSI-2 Output
> +
> + properties:
> + '#address-cells':
> + const: 1
> +
> + '#size-cells':
> + const: 0
> +
> + port@[0-3]:
> + type: object
> + properties:
> + reg:
> + enum: [ 0, 1, 2, 3 ]
> +
> + endpoint:
> + type: object
> +
> + properties:
> + remote-endpoint:
> + description: -|
> + phandle to the remote GMSL source endpoint subnode in the
> + remote node port.
> + maxItems: 1
This is not an array. You can just drop and assume it has a type defined
elsewhere.
> +
> + required:
> + - remote-endpoint
> +
> + required:
> + - reg
> + - endpoint
> +
> + additionalProperties: false
> +
> + port@4:
> + type: object
> + properties:
> + reg:
> + const: 4
> +
> + endpoint:
> + type: object
> +
> + properties:
> + remote-endpoint:
> + description: phandle to the remote CSI-2 sink endpoint.
> + maxItems: 1
And here.
> +
> + data-lanes:
> + description: array of physical CSI-2 data lane indexes.
> +
> + required:
> + - remote-endpoint
> + - data-lanes
> +
> + required:
> + - reg
> + - endpoint
> +
> + additionalProperties: false
> +
> + required:
> + - port@4
> +
> + i2c-mux:
> + type: object
> + description: -|
> + Each GMSL link is modelled as a child bus of an i2c bus
> + multiplexer/switch, in accordance with bindings described in
> + Documentation/devicetree/bindings/i2c/i2c-mux.txt. The serializer
> + device on the remote end of the GMSL link shall be modelled as a child
> + node of the corresponding I2C bus.
> +
> + properties:
> + '#address-cells':
> + const: 1
> +
> + '#size-cells':
> + const: 0
> +
> + additionalProperties: false
> +
> +required:
> + - compatible
> + - reg
> + - ports
> + - i2c-mux
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/gpio/gpio.h>
> +
> + i2c@e66d8000 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + reg = <0 0xe66d8000 0 0x40>;
> +
> + gmsl-deserializer@2c {
> + compatible = "maxim,max9286";
> + reg = <0x2c>;
> + poc-supply = <&camera_poc_12v>;
> + enable-gpios = <&gpio 13 GPIO_ACTIVE_HIGH>;
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> +
> + max9286_in0: endpoint {
> + remote-endpoint = <&rdacm20_out0>;
> + };
> + };
> +
> + port@1 {
> + reg = <1>;
> +
> + max9286_in1: endpoint {
> + remote-endpoint = <&rdacm20_out1>;
> + };
> + };
> +
> + port@2 {
> + reg = <2>;
> +
> + max9286_in2: endpoint {
> + remote-endpoint = <&rdacm20_out2>;
> + };
> + };
> +
> + port@3 {
> + reg = <3>;
> +
> + max9286_in3: endpoint {
> + remote-endpoint = <&rdacm20_out3>;
> + };
> + };
> +
> + port@4 {
> + reg = <4>;
> +
> + max9286_out: endpoint {
> + data-lanes = <1 2 3 4>;
> + remote-endpoint = <&csi40_in>;
> + };
> + };
> + };
> +
> + i2c-mux {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + i2c@0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + reg = <0>;
> +
> + camera@51 {
> + reg = <0x51>;
> +
> + port {
> + rdacm20_out0: endpoint {
> + remote-endpoint = <&max9286_in0>;
> + };
> + };
> +
> + };
> + };
> +
> + i2c@1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <1>;
> +
> + camera@52 {
> + reg = <0x52>;
> +
> + port {
> + rdacm20_out1: endpoint {
> + remote-endpoint = <&max9286_in1>;
> + };
> + };
> + };
> + };
> +
> + i2c@2 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <2>;
> +
> + camera@53 {
> + reg = <0x53>;
> +
> + port {
> + rdacm20_out2: endpoint {
> + remote-endpoint = <&max9286_in2>;
> + };
> + };
> + };
> + };
> +
> + i2c@3 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <3>;
> +
> + camera@54 {
> + reg = <0x54>;
> +
> + port {
> + rdacm20_out3: endpoint {
> + remote-endpoint = <&max9286_in3>;
> + };
> + };
> + };
> + };
> + };
> + };
> + };
> --
> 2.20.1
>
next prev parent reply other threads:[~2019-12-18 18:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-11 12:44 [PATCH v6 0/2] MAX9286 GMSL Support Kieran Bingham
2019-12-11 12:44 ` [PATCH v6 1/2] dt-bindings: media: i2c: Add bindings for Maxim Integrated MAX9286 Kieran Bingham
2019-12-18 18:13 ` Rob Herring [this message]
2019-12-19 11:46 ` Kieran Bingham
2019-12-11 12:44 ` [PATCH v6 2/2] media: i2c: Add MAX9286 driver Kieran Bingham
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20191218181352.GA6385@bogus \
--to=robh@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=hverkuil@xs4all.nl \
--cc=jacopo+renesas@jmondi.org \
--cc=jacopo@jmondi.org \
--cc=kieran.bingham+renesas@ideasonboard.com \
--cc=kieran.bingham@ideasonboard.com \
--cc=laurent.pinchart+renesas@ideasonboard.com \
--cc=laurent.pinchart@ideasonboard.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-media@vger.kernel.org \
--cc=linux-renesas-soc@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=mchehab@kernel.org \
--cc=niklas.soderlund+renesas@ragnatech.se \
--cc=niklas.soderlund@ragnatech.se \
--cc=sakari.ailus@iki.fi \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).