linux-kernel - Re: [PATCH V3 4/6] dt-bindings: clk: meson: add S4 SoC peripheral clock controller bindings

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Message-ID: <4d923b9e-61d4-b4cc-906f-cb186a16e1f4@amlogic.com>
Date:   Fri, 5 Aug 2022 17:33:03 +0800
From:   Yu Tu <yu.tu@...ogic.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        <linux-clk@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-amlogic@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Neil Armstrong <narmstrong@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Kevin Hilman <khilman@...libre.com>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Subject: Re: [PATCH V3 4/6] dt-bindings: clk: meson: add S4 SoC peripheral
 clock controller bindings

Hi Krzysztof,
	Thank you for your reply.

On 2022/8/5 17:15, Krzysztof Kozlowski wrote:
> [ EXTERNAL EMAIL ]
> 
> On 05/08/2022 10:57, Yu Tu wrote:
>> Add peripheral clock controller compatible and dt-bindings header for
>> the of the S4 SoC.
>>
>> Signed-off-by: Yu Tu <yu.tu@...ogic.com>
>> ---
>>   .../bindings/clock/amlogic,s4-clkc.yaml       |  92 ++++++++++++
>>   include/dt-bindings/clock/amlogic,s4-clkc.h   | 131 ++++++++++++++++++
>>   2 files changed, 223 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/clock/amlogic,s4-clkc.yaml
>>   create mode 100644 include/dt-bindings/clock/amlogic,s4-clkc.h
>>
>> diff --git a/Documentation/devicetree/bindings/clock/amlogic,s4-clkc.yaml b/Documentation/devicetree/bindings/clock/amlogic,s4-clkc.yaml
>> new file mode 100644
>> index 000000000000..2471276afda9
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/clock/amlogic,s4-clkc.yaml
> 
> Filename should be based on compatible, so amlogic,s4-periphs-clkc.yaml
I will correct as you suggest in the next version.
> 
>> @@ -0,0 +1,92 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/clock/amlogic,s4-clkc.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Amlogic Meson S serials Peripheral Clock Controller Device Tree Bindings
> 
> s/Device Tree Bindings//
what's mean?
> 
>> +
>> +maintainers:
>> +  - Neil Armstrong <narmstrong@...libre.com>
>> +  - Jerome Brunet <jbrunet@...libre.com>
>> +  - Yu Tu <yu.hu@...ogic.com>
>> +
>> +
>> +properties:
>> +  compatible:
>> +    const: amlogic,s4-periphs-clkc
>> +
>> +  reg:
>> +    maxItems: 1
>> +
>> +  clocks:
>> +    items:
>> +      - description: input fixed pll div2
>> +      - description: input fixed pll div2p5
>> +      - description: input fixed pll div3
>> +      - description: input fixed pll div4
>> +      - description: input fixed pll div5
>> +      - description: input fixed pll div7
>> +      - description: input hifi pll
>> +      - description: input gp0 pll
>> +      - description: input mpll0
>> +      - description: input mpll1
>> +      - description: input mpll2
>> +      - description: input mpll3
>> +      - description: input hdmi pll
>> +      - description: input oscillator (usually at 24MHz)
>> +
>> +  clock-names:
>> +    items:
>> +      - const: fclk_div2
>> +      - const: fclk_div2p5
>> +      - const: fclk_div3
>> +      - const: fclk_div4
>> +      - const: fclk_div5
>> +      - const: fclk_div7
>> +      - const: hifi_pll
>> +      - const: gp0_pll
>> +      - const: mpll0
>> +      - const: mpll1
>> +      - const: mpll2
>> +      - const: mpll3
>> +      - const: hdmi_pll
>> +      - const: xtal
>> +
>> +  "#clock-cells":
>> +    const: 1
>> +
>> +required:
>> +  - compatible
>> +  - reg
>> +  - clocks
>> +  - clock-names
>> +  - "#clock-cells"
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> +  - |
>> +    clkc_periphs: periphs-clock-controller@...00000 {
>> +      compatible = "amlogic,s4-periphs-clkc";
>> +      reg = <0xfe000000 0x49c>;
>> +      clocks = <&clkc_pll 3>,
>> +              <&clkc_pll 13>,
>> +              <&clkc_pll 5>,
>> +              <&clkc_pll 7>,
>> +              <&clkc_pll 9>,
>> +              <&clkc_pll 11>,
>> +              <&clkc_pll 17>,
>> +              <&clkc_pll 15>,
>> +              <&clkc_pll 25>,
>> +              <&clkc_pll 27>,
>> +              <&clkc_pll 29>,
>> +              <&clkc_pll 31>,
>> +              <&clkc_pll 20>,
>> +              <&xtal>;
>> +      clock-names = "fclk_div2", "fclk_div2p5", "fclk_div3", "fclk_div4",
>> +                    "fclk_div5", "fclk_div7", "hifi_pll", "gp0_pll",
>> +                    "mpll0", "mpll1", "mpll2", "mpll3", "hdmi_pll", "xtal";
>> +      #clock-cells = <1>;
>> +    };
>> +...
>> diff --git a/include/dt-bindings/clock/amlogic,s4-clkc.h b/include/dt-bindings/clock/amlogic,s4-clkc.h
>> new file mode 100644
>> index 000000000000..d203b9bbf29e
>> --- /dev/null
>> +++ b/include/dt-bindings/clock/amlogic,s4-clkc.h
> 
> Probably this should be then amlogic,s4-periphs-clkc.h
I will correct as you suggest in the next version.
> 
>> @@ -0,0 +1,131 @@
>> +/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
>> +/*
>> + * Copyright (c) 2021 Amlogic, Inc. All rights reserved.
>> + * Author: Yu Tu <yu.tu@...ogic.com>
>> + */
>> +
>> +#ifndef _DT_BINDINGS_CLOCK_AMLOGIC_S4_CLKC_H
>> +#define _DT_BINDINGS_CLOCK_AMLOGIC_S4_CLKC_H
> 
> Best regards,
> Krzysztof
> 
> .