linux-kernel - Re: [PATCH 1/9] dt-bindings: media: Add amlogic,c3-mipi-csi2.yaml

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Message-ID: <d83c58d9-164d-4a07-907f-9f2dbe682f09@amlogic.com>
Date: Wed, 4 Sep 2024 16:15:21 +0800
From: Keke Li <keke.li@...ogic.com>
To: Krzysztof Kozlowski <krzk@...nel.org>,
 Mauro Carvalho Chehab <mchehab@...nel.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>
Cc: linux-media@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, kieran.bingham@...asonboard.com,
 laurent.pinchart@...asonboard.com, dan.scally@...asonboard.com
Subject: Re: [PATCH 1/9] dt-bindings: media: Add amlogic,c3-mipi-csi2.yaml


On 2024/9/3 22:08, Krzysztof Kozlowski wrote:
> [You don't often get email from krzk@...nel.org. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ]
>
> [ EXTERNAL EMAIL ]
>
> On 03/09/2024 08:57, Keke Li via B4 Relay wrote:
>> From: Keke Li <keke.li@...ogic.com>
>>
>> c3-mipi-csi2 is used to receive mipi data
>> from image sensor.
> Please wrap commit message according to Linux coding style / submission
> process (neither too early nor over the limit):
> https://elixir.bootlin.com/linux/v6.4-rc1/source/Documentation/process/submitting-patches.rst#L597
Will modify this issue.
>> Signed-off-by: Keke Li <keke.li@...ogic.com>
>> ---
>>   .../bindings/media/amlogic,c3-mipi-csi2.yaml       | 130 +++++++++++++++++++++
>>   1 file changed, 130 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/media/amlogic,c3-mipi-csi2.yaml b/Documentation/devicetree/bindings/media/amlogic,c3-mipi-csi2.yaml
>> new file mode 100644
>> index 000000000000..85d3088d6f9f
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/media/amlogic,c3-mipi-csi2.yaml
>> @@ -0,0 +1,130 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/media/amlogic,c3-mipi-csi2.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Amlogic C3 MIPI CSI-2 receiver
>> +
>> +maintainers:
>> +  - Keke Li <keke.li@...ogic.com>
>> +
>> +description: |-
> Do not need '|-' unless you need to preserve formatting.
Will delete '| -'
>
>> +  MIPI CSI-2 receiver contains CSI-2 RX PHY and host controller.
>> +  It receives the MIPI data from the image sensor and sends MIPI data
>> +  to MIPI adapter.
>> +
>> +properties:
>> +  compatible:
>> +    enum:
>> +      - amlogic,c3-mipi-csi2
>> +
>> +  reg:
>> +    minItems: 3
> Drop minItems
Will drop minItems
>
>> +    maxItems: 3
>> +
>> +  reg-names:
>> +    items:
>> +      - const: csi_aphy
>> +      - const: csi_dphy
>> +      - const: csi_host
> Drop csi_ everywhere
Will drop csi_ every where
>> +
>> +  power-domains:
>> +    maxItems: 1
>> +
>> +  clocks:
>> +    minItems: 2
> Your code is random... Look how this is different than other list - reg.
> Instead maxItems.
Will modify minItems to maxItems
>> +
>> +  clock-names:
>> +    items:
>> +      - const: vapb
>> +      - const: csi_phy0
>> +
>> +  ports:
>> +    $ref: /schemas/graph.yaml#/properties/ports
>> +
>> +    properties:
>> +      port@0:
>> +        $ref: /schemas/graph.yaml#/$defs/port-base
>> +        unevaluatedProperties: false
>> +        description: input port node, connected to sensor.
>> +
>> +        properties:
>> +          endpoint:
>> +            $ref: video-interfaces.yaml#
>> +            unevaluatedProperties: false
>> +
>> +            properties:
>> +              data-lanes:
>> +                minItems: 1
>> +                maxItems: 4
>> +
>> +            required:
>> +              - data-lanes
>> +
>> +      port@1:
>> +        $ref: /schemas/graph.yaml#/properties/port
>> +        description: output port node
>> +
>> +    required:
>> +      - port@0
>> +      - port@1
>> +
>> +required:
>> +  - compatible
>> +  - reg
>> +  - reg-names
>> +  - power-domains
>> +  - clocks
>> +  - clock-names
>> +  - ports
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> +  - |
>> +    #include <dt-bindings/clock/amlogic,c3-peripherals-clkc.h>
>> +    #include <dt-bindings/power/amlogic,c3-pwrc.h>
>> +
>> +    soc {
>> +        #address-cells = <2>;
>> +        #size-cells = <2>;
>> +
>> +        csi: csi@...18000 {
>> +            compatible = "amlogic,c3-mipi-csi2";
>> +
> Drop blank line
Will drop blank line.
>> +            reg = <0x0 0xff018000 0x0 0x400>,
>> +                  <0x0 0xff019000 0x0 0x300>,
>> +                  <0x0 0xff01a000 0x0 0x100>;
>> +
> Drop blank line
Will drop blank line.
>
>
>> +            reg-names = "csi_aphy", "csi_dphy", "csi_host";
>> +
>> +            power-domains = <&pwrc PWRC_C3_MIPI_ISP_WRAP_ID>;
>> +
>> +            clocks =  <&clkc_periphs CLKID_VAPB>,
>> +                      <&clkc_periphs CLKID_CSI_PHY0>;
>> +
> Drop blank line. That's poorly readable code.
Will drop blank line.  Thanks again.
>
>
> Best regards,
> Krzysztof
>