linux-kernel - Re: [PATCH v2 2/3] dt-bindings: clock: add SM6375 QCOM global clock bindings

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Message-ID: <11cc46d8-ae01-f3d2-b9c6-c366c6e4afc9@linaro.org>
Date:   Wed, 20 Jul 2022 08:27:24 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Konrad Dybcio <konrad.dybcio@...ainline.org>,
        ~postmarketos/upstreaming@...ts.sr.ht
Cc:     martin.botka@...ainline.org,
        angelogioacchino.delregno@...ainline.org,
        marijn.suijten@...ainline.org, jamipkettunen@...ainline.org,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/3] dt-bindings: clock: add SM6375 QCOM global clock
 bindings

On 19/07/2022 13:57, Konrad Dybcio wrote:
> Add device tree bindings for global clock controller for SM6375 SoCs.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@...ainline.org>
> ---
> Changes since v1:
> - dropped clock-names (switched to .index)
> 
>  .../bindings/clock/qcom,sm6375-gcc.yaml       |  65 +++++
>  include/dt-bindings/clock/qcom,sm6375-gcc.h   | 234 ++++++++++++++++++
>  2 files changed, 299 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/clock/qcom,sm6375-gcc.yaml
>  create mode 100644 include/dt-bindings/clock/qcom,sm6375-gcc.h
> 
> diff --git a/Documentation/devicetree/bindings/clock/qcom,sm6375-gcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm6375-gcc.yaml
> new file mode 100644
> index 000000000000..2e43cd75d3d4
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/qcom,sm6375-gcc.yaml
> @@ -0,0 +1,65 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/clock/qcom,sm6375-gcc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm Global Clock & Reset Controller Binding for SM6375
> +
> +maintainers:
> +  - Konrad Dybcio <konrad.dybcio@...ainline.org>
> +
> +description: |
> +  Qualcomm global clock control module which supports the clocks, resets and
> +  power domains on SM6375
> +
> +  See also:
> +  - dt-bindings/clock/qcom,sm6375-gcc.h
> +

Why you are not referencing qcom,gcc.yaml?

> +properties:
> +  compatible:
> +    const: qcom,sm6375-gcc
> +
> +  clocks:
> +    items:
> +      - description: Board XO source
> +      - description: Board XO Active-Only source
> +      - description: Sleep clock source
> +
> +  '#clock-cells':
> +    const: 1
> +
> +  '#reset-cells':
> +    const: 1
> +
> +  '#power-domain-cells':
> +    const: 1
> +
> +  reg:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - '#clock-cells'
> +  - '#reset-cells'
> +  - '#power-domain-cells'
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/qcom,rpmcc.h>
> +    clock-controller@...0000 {
> +      compatible = "qcom,sm6375-gcc";
> +      reg = <0x01400000 0x1f0000>;
> +      clocks = <&rpmcc RPM_SMD_XO_CLK_SRC>,
> +               <&rpmcc RPM_SMD_XO_A_CLK_SRC>,
> +               <&sleep_clk>;
> +      #clock-cells = <1>;
> +      #reset-cells = <1>;
> +      #power-domain-cells = <1>;
> +    };
> +
> +...
> diff --git a/include/dt-bindings/clock/qcom,sm6375-gcc.h b/include/dt-bindings/clock/qcom,sm6375-gcc.h
> new file mode 100644
> index 000000000000..1e9801e1cedf
> --- /dev/null
> +++ b/include/dt-bindings/clock/qcom,sm6375-gcc.h
> @@ -0,0 +1,234 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */

Hm, Qualcomm gave permission to relicense bindings to dual-license,
although I am not sure how this works with files where copyrights were
transferred to Linux Foundation...

> +/*
> + * Copyright (c) 2021, The Linux Foundation. All rights reserved.
> + * Copyright (c) 2022, Konrad Dybcio <konrad.dybcio@...ainline.org>
> + */
> +
> +#ifndef _DT_BINDINGS_CLK_QCOM_GCC_SM6375_H
> +#define _DT_BINDINGS_CLK_QCOM_GCC_SM6375_H
> +


Best regards,
Krzysztof