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Message-ID: <087e7f29-1fa8-4bc2-bb3d-acb941432381@kernel.org>
Date: Mon, 1 Jul 2024 10:58:12 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Vikram Sharma <quic_vikramsa@...cinc.com>, Robert Foss
 <rfoss@...nel.org>, Todor Tomov <todor.too@...il.com>,
 Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
 Mauro Carvalho Chehab <mchehab@...nel.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Kapatrala Syed <akapatra@...cinc.com>,
 Hariram Purushothaman <hariramp@...cinc.com>,
 cros-qcom-dts-watchers@...omium.org, Bjorn Andersson <andersson@...nel.org>,
 Konrad Dybcio <konrad.dybcio@...aro.org>,
 Loic Poulain <loic.poulain@...aro.org>, Andi Shyti <andi.shyti@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, linux-media@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-i2c@...r.kernel.org, Suresh Vankadara <quic_svankada@...cinc.com>,
 Trishansh Bhardwaj <quic_tbhardwa@...cinc.com>
Subject: Re: [PATCH 1/6] media: dt-bindings: media: camss: Add
 qcom,sc7280-camss binding

On 28/06/2024 20:32, Vikram Sharma wrote:
> Add bindings for qcom,sc7280-camss in order to support the camera
> subsystem for sc7280.
> 
> Signed-off-by: Suresh Vankadara <quic_svankada@...cinc.com>
> Signed-off-by: Trishansh Bhardwaj <quic_tbhardwa@...cinc.com>
> Signed-off-by: Vikram Sharma <quic_vikramsa@...cinc.com>
> ---
>  .../bindings/media/qcom,sc7280-camss.yaml          | 477 +++++++++++++++++++++
>  1 file changed, 477 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/media/qcom,sc7280-camss.yaml b/Documentation/devicetree/bindings/media/qcom,sc7280-camss.yaml
> new file mode 100644
> index 000000000000..588c6fb50e2f
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/qcom,sc7280-camss.yaml
> @@ -0,0 +1,477 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +
> +---
> +$id: http://devicetree.org/schemas/media/qcom,sc7280-camss.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm Technologies, Inc. SC7280 CAMSS ISP

We write only "Qualcomm", drop "Technologies, Inc.".

> +
> +maintainers:
> +  - Azam Sadiq Pasha Kapatrala Syed <akapatra@...cinc.com>
> +  - Hariram Purushothaman <hariramp@...cinc.com>
> +
> +description: |

Do not need '|' unless you need to preserve formatting.

> +  The CAMSS IP is a CSI decoder and ISP present on
> +  Qualcomm Technologies, Inc. platforms.
> +
> +properties:
> +  compatible:
> +    const: qcom,sc7280-camss
> +
> +  clocks:
> +    minItems: 41


Drop

> +    maxItems: 41
> +
> +  clock-names:
> +    items:
> +


Drop blank line

> +      - const: cam_hf_axi
> +      - const: slow_ahb_src
> +      - const: cpas_ahb
> +      - const: camnoc_axi_src
> +      - const: camnoc_axi

Which file did you use as template? Isn't this supposed to be reversed?

BTW, you *must* work on latest tree. Do not take some ancient code and
use as template. It's really waste of time to point the same issues over
and over again.

> +      - const: csiphy0
> +      - const: csiphy0_timer
> +      - const: csiphy0_timer_src
> +      - const: csiphy1
> +      - const: csiphy1_timer
> +      - const: csiphy1_timer_src
> +      - const: csiphy2
> +      - const: csiphy2_timer
> +      - const: csiphy2_timer_src
> +      - const: csiphy3
> +      - const: csiphy3_timer
> +      - const: csiphy3_timer_src
> +      - const: csiphy4
> +      - const: csiphy4_timer
> +      - const: csiphy4_timer_src
> +      - const: vfe0_csid
> +      - const: vfe0_cphy_rx
> +      - const: vfe0
> +      - const: vfe0_axi
> +      - const: csiphy_rx_src
> +      - const: vfe1_csid
> +      - const: vfe1_cphy_rx
> +      - const: vfe1
> +      - const: vfe1_axi
> +      - const: vfe2_csid
> +      - const: vfe2_cphy_rx
> +      - const: vfe2
> +      - const: vfe2_axi
> +      - const: vfe0_lite_csid
> +      - const: vfe0_lite_cphy_rx

Why these are reversed comparing to other bindings? Srsly, from which
file did you take it?

> +      - const: vfe0_lite
> +      - const: vfe1_lite_csid
> +      - const: vfe1_lite_cphy_rx
> +      - const: vfe1_lite
> +      - const: vfe_lite0
> +      - const: vfe_lite1
> +
> +  interrupts:
> +    minItems: 15

Drop

> +    maxItems: 15
> +
> +  interrupt-names:
> +    items:
> +      - const: csiphy0
> +      - const: csiphy1
> +      - const: csiphy2
> +      - const: csiphy3
> +      - const: csiphy4
> +      - const: csid0
> +      - const: csid1
> +      - const: csid2
> +      - const: csid_lite0
> +      - const: csid_lite1
> +      - const: vfe0
> +      - const: vfe1
> +      - const: vfe2
> +      - const: vfe_lite0
> +      - const: vfe_lite1
> +
> +  iommus:
> +    maxItems: 1
> +
> +  interconnects:
> +    minItems: 2

Drop

> +    maxItems: 2
> +
> +  interconnect-names:
> +    items:
> +      - const: cam_ahb
> +      - const: cam_hf_0

Drop "cam_" prefix in both. Actually everywhere...


> +
> +  power-domains:
> +    items:
> +      - description: IFE0 GDSC - Image Front End, Global Distributed Switch Controller.
> +      - description: IFE1 GDSC - Image Front End, Global Distributed Switch Controller.
> +      - description: IFE2 GDSC - Image Front End, Global Distributed Switch Controller.
> +      - description: Titan GDSC - Titan ISP Block, Global Distributed Switch Controller.
> +
> +  ports:
> +    $ref: /schemas/graph.yaml#/properties/ports
> +
> +    description:
> +      CSI input ports.
> +
> +    properties:
> +      port@0:
> +        $ref: /schemas/graph.yaml#/$defs/port-base
> +        unevaluatedProperties: false
> +        description:
> +          Input port for receiving CSI data.
> +
> +        properties:
> +          endpoint:
> +            $ref: video-interfaces.yaml#
> +            unevaluatedProperties: false
> +
> +            properties:
> +              clock-lanes:
> +                maxItems: 1
> +
> +              data-lanes:
> +                minItems: 1
> +                maxItems: 4
> +
> +            required:
> +              - clock-lanes
> +              - data-lanes
> +
> +      port@1:
> +        $ref: /schemas/graph.yaml#/$defs/port-base
> +        unevaluatedProperties: false
> +        description:
> +          Input port for receiving CSI data.
> +
> +        properties:
> +          endpoint:
> +            $ref: video-interfaces.yaml#
> +            unevaluatedProperties: false
> +
> +            properties:
> +              clock-lanes:
> +                maxItems: 1
> +
> +              data-lanes:
> +                minItems: 1
> +                maxItems: 4
> +
> +            required:
> +              - clock-lanes
> +              - data-lanes
> +
> +      port@2:
> +        $ref: /schemas/graph.yaml#/$defs/port-base
> +        unevaluatedProperties: false
> +        description:
> +          Input port for receiving CSI data.
> +
> +        properties:
> +          endpoint:
> +            $ref: video-interfaces.yaml#
> +            unevaluatedProperties: false
> +
> +            properties:
> +              clock-lanes:
> +                maxItems: 1
> +
> +              data-lanes:
> +                minItems: 1
> +                maxItems: 4
> +
> +            required:
> +              - clock-lanes
> +              - data-lanes
> +
> +      port@3:
> +        $ref: /schemas/graph.yaml#/$defs/port-base
> +        unevaluatedProperties: false
> +        description:
> +          Input port for receiving CSI data.
> +
> +        properties:
> +          endpoint:
> +            $ref: video-interfaces.yaml#
> +            unevaluatedProperties: false
> +
> +            properties:
> +              clock-lanes:
> +                maxItems: 1
> +
> +              data-lanes:
> +                minItems: 1
> +                maxItems: 4
> +
> +            required:
> +              - clock-lanes
> +              - data-lanes
> +
> +      port@4:
> +        $ref: /schemas/graph.yaml#/$defs/port-base
> +        unevaluatedProperties: false
> +        description:
> +          Input port for receiving CSI data.
> +
> +        properties:
> +          endpoint:
> +            $ref: video-interfaces.yaml#
> +            unevaluatedProperties: false
> +
> +            properties:
> +              clock-lanes:
> +                maxItems: 1
> +
> +              data-lanes:
> +                minItems: 1
> +                maxItems: 4
> +
> +            required:
> +              - clock-lanes
> +              - data-lanes
> +
> +      port@5:
> +        $ref: /schemas/graph.yaml#/$defs/port-base
> +        unevaluatedProperties: false
> +        description:
> +          Input port for receiving CSI data.
> +
> +        properties:
> +          endpoint:
> +            $ref: video-interfaces.yaml#
> +            unevaluatedProperties: false
> +
> +            properties:
> +              clock-lanes:
> +                maxItems: 1
> +
> +              data-lanes:
> +                minItems: 1
> +                maxItems: 4
> +
> +            required:
> +              - clock-lanes
> +              - data-lanes
> +
> +  reg:
> +    minItems: 10

Drop

> +    maxItems: 10
> +
> +  reg-names:
> +    items:
> +      - const: vfe0
> +      - const: vfe1
> +      - const: vfe2
> +      - const: vfe_lite0
> +      - const: vfe_lite1
> +      - const: csiphy0
> +      - const: csiphy1
> +      - const: csiphy2
> +      - const: csiphy3
> +      - const: csiphy4

Which file did you use as template for these?

> +
> +required:
> +  - clock-names
> +  - clocks
> +  - compatible
> +  - interconnects
> +  - interconnect-names
> +  - interrupts
> +  - interrupt-names
> +  - iommus
> +  - power-domains
> +  - reg
> +  - reg-names
> +
> +additionalProperties: false

Missing blank line

> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/clock/qcom,camcc-sc7280.h>
> +    #include <dt-bindings/interconnect/qcom,sc7280.h>
> +    #include <dt-bindings/clock/qcom,gcc-sc7280.h>
> +    #include <dt-bindings/power/qcom-rpmpd.h>

These should be in alphabetical order, not random.

> +
> +    soc {
> +        #address-cells = <2>;
> +        #size-cells = <2>;
> +
> +        camss: camss@...f000 {
> +            compatible = "qcom,sc7280-camss";
> +            reg = <0x0 0x0acaf000 0x0 0x5200>,
> +                <0x0 0x0acb6000 0x0 0x5200>,
> +                <0x0 0x0acbd000 0x0 0x5200>,
> +                <0x0 0x0acc4000 0x0 0x5000>,
> +                <0x0 0x0accb000 0x0 0x5000>,
> +                <0x0 0x0ace0000 0x0 0x2000>,
> +                <0x0 0x0ace2000 0x0 0x2000>,
> +                <0x0 0x0ace4000 0x0 0x2000>,
> +                <0x0 0x0ace6000 0x0 0x2000>,
> +                <0x0 0x0ace8000 0x0 0x2000>;
> +
> +            reg-names = "vfe0",
> +                "vfe1",
> +                "vfe2",

Misaligned.

> +                "vfe_lite0",
> +                "vfe_lite1",
> +                "csiphy0",
> +                "csiphy1",
> +                "csiphy2",
> +                "csiphy3",
> +                "csiphy4";
> +
> +            interrupts = <GIC_SPI 477 IRQ_TYPE_EDGE_RISING>,
> +                <GIC_SPI 478 IRQ_TYPE_EDGE_RISING>,

Misaligned.

> +                <GIC_SPI 479 IRQ_TYPE_EDGE_RISING>,
> +                <GIC_SPI 448 IRQ_TYPE_EDGE_RISING>,
> +                <GIC_SPI 122 IRQ_TYPE_EDGE_RISING>,
> +                <GIC_SPI 464 IRQ_TYPE_EDGE_RISING>,
> +                <GIC_SPI 466 IRQ_TYPE_EDGE_RISING>,
> +                <GIC_SPI 640 IRQ_TYPE_EDGE_RISING>,
> +                <GIC_SPI 468 IRQ_TYPE_EDGE_RISING>,
> +                <GIC_SPI 359 IRQ_TYPE_EDGE_RISING>,
> +                <GIC_SPI 465 IRQ_TYPE_EDGE_RISING>,
> +                <GIC_SPI 467 IRQ_TYPE_EDGE_RISING>,
> +                <GIC_SPI 641 IRQ_TYPE_EDGE_RISING>,
> +                <GIC_SPI 469 IRQ_TYPE_EDGE_RISING>,
> +                <GIC_SPI 360 IRQ_TYPE_EDGE_RISING>;
> +
> +            interrupt-names = "csiphy0",
> +                "csiphy1",
> +                "csiphy2",

Misaligned.

> +                "csiphy3",
> +                "csiphy4",
> +                "csid0",
> +                "csid1",
> +                "csid2",
> +                "csid_lite0",
> +                "csid_lite1",
> +                "vfe0",
> +                "vfe1",
> +                "vfe2",
> +                "vfe_lite0",
> +                "vfe_lite1";


Best regards,
Krzysztof


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