linux-kernel - Re: [PATCH 1/2] dt-bindings: interconnect: Add Qualcomm SM8550 DT bindings

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Message-ID: <19686cfa-a3ec-fce4-04fd-3e047062295f@linaro.org>
Date:   Wed, 16 Nov 2022 14:06:32 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Abel Vesa <abel.vesa@...aro.org>, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Georgi Djakov <djakov@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring <robh@...nel.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-pm@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: interconnect: Add Qualcomm SM8550 DT
 bindings

On 16/11/2022 12:45, Abel Vesa wrote:
> The Qualcomm SM8550 SoC has several bus fabrics that could be
> controlled and tuned dynamically according to the bandwidth demand
> 
> Signed-off-by: Abel Vesa <abel.vesa@...aro.org>
> ---
>  .../bindings/interconnect/qcom,rpmh.yaml      |  19 +-
>  .../dt-bindings/interconnect/qcom,sm8550.h    | 190 ++++++++++++++++++
>  2 files changed, 208 insertions(+), 1 deletion(-)
>  create mode 100644 include/dt-bindings/interconnect/qcom,sm8550.h
> 
> diff --git a/Documentation/devicetree/bindings/interconnect/qcom,rpmh.yaml b/Documentation/devicetree/bindings/interconnect/qcom,rpmh.yaml
> index a429a1ed1006..667ed6815773 100644
> --- a/Documentation/devicetree/bindings/interconnect/qcom,rpmh.yaml
> +++ b/Documentation/devicetree/bindings/interconnect/qcom,rpmh.yaml
> @@ -132,12 +132,29 @@ properties:
>        - qcom,sm8450-nsp-noc
>        - qcom,sm8450-pcie-anoc
>        - qcom,sm8450-system-noc
> +      - qcom,sm8550-aggre1-noc
> +      - qcom,sm8550-aggre2-noc
> +      - qcom,sm8550-clk-virt
> +      - qcom,sm8550-config-noc
> +      - qcom,sm8550-cnoc-main

Keep the names sorted alphabetically.

> +      - qcom,sm8550-gem-noc
> +      - qcom,sm8550-lpass-ag-noc
> +      - qcom,sm8550-lpass-lpiaon-noc
> +      - qcom,sm8550-lpass-lpicx-noc
> +      - qcom,sm8550-mc-virt
> +      - qcom,sm8550-mmss-noc
> +      - qcom,sm8550-nsp-noc
> +      - qcom,sm8550-pcie-anoc
> +      - qcom,sm8550-system-noc
> +
> +  clocks:
> +    minItems: 1
> +    maxItems: 2

Not explained...

>  
>    '#interconnect-cells': true
>  
>  required:
>    - compatible
> -  - reg

Nope. This is undocumented change.

See also:
https://lore.kernel.org/all/20221026190520.4004264-2-quic_molvera@quicinc.com/

>  
>  unevaluatedProperties: false
>  
> diff --git a/include/dt-bindings/interconnect/qcom,sm8550.h b/include/dt-bindings/interconnect/qcom,sm8550.h
> new file mode 100644
> index 000000000000..a066460d5a12
> --- /dev/null
> +++ b/include/dt-bindings/interconnect/qcom,sm8550.h
> @@ -0,0 +1,190 @@
> +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
> +/*
> + * Copyright (c) 2021, The Linux Foundation. All rights reserved.
> + * Copyright (c) 2022, Linaro Limited
> + */
> +
> +#ifndef __DT_BINDINGS_INTERCONNECT_QCOM_SM8550_H
> +#define __DT_BINDINGS_INTERCONNECT_QCOM_SM8550_H
> +
> +#define MASTER_QSPI_0				0
> +#define MASTER_QUP_1				1
> +#define MASTER_SDCC_4				2
> +#define MASTER_UFS_MEM				3
> +#define MASTER_USB3_0				4
> +#define SLAVE_A1NOC_SNOC			5
> +
> +#define	MASTER_QDSS_BAM				0

Drop weird tab/spaces in the middle.

Best regards,
Krzysztof