linux-kernel - Re: [PATCH v2 09/14] dt-bindings: clock: Add StarFive JH7110 system clock and reset generator

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Message-ID: <CAJM55Z_Gq22NiVYHawvjsehL8j3agvp_b2RCgabdTki+ovWa8Q@mail.gmail.com>
Date:   Fri, 18 Nov 2022 17:50:41 +0100
From:   Emil Renner Berthing <emil.renner.berthing@...onical.com>
To:     Hal Feng <hal.feng@...rfivetech.com>
Cc:     linux-riscv@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-clk@...r.kernel.org, Conor Dooley <conor@...nel.org>,
        Palmer Dabbelt <palmer@...belt.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Stephen Boyd <sboyd@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 09/14] dt-bindings: clock: Add StarFive JH7110 system
 clock and reset generator

On Fri, 18 Nov 2022 at 02:06, Hal Feng <hal.feng@...rfivetech.com> wrote:
>
> From: Emil Renner Berthing <kernel@...il.dk>
>
> Add bindings for the system clock and reset generator (SYSCRG) on the
> JH7110 RISC-V SoC by StarFive Ltd.
>
> Signed-off-by: Emil Renner Berthing <kernel@...il.dk>
> Signed-off-by: Hal Feng <hal.feng@...rfivetech.com>
> ---
>  .../clock/starfive,jh7110-syscrg.yaml         | 80 +++++++++++++++++++
>  MAINTAINERS                                   |  2 +-
>  2 files changed, 81 insertions(+), 1 deletion(-)
>  create mode 100644 Documentation/devicetree/bindings/clock/starfive,jh7110-syscrg.yaml
>
> diff --git a/Documentation/devicetree/bindings/clock/starfive,jh7110-syscrg.yaml b/Documentation/devicetree/bindings/clock/starfive,jh7110-syscrg.yaml
> new file mode 100644
> index 000000000000..a8cafbc0afe2
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/starfive,jh7110-syscrg.yaml
> @@ -0,0 +1,80 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/clock/starfive,jh7110-syscrg.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: StarFive JH7110 System Clock and Reset Generator
> +
> +maintainers:
> +  - Emil Renner Berthing <kernel@...il.dk>
> +
> +properties:
> +  compatible:
> +    const: starfive,jh7110-syscrg
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    items:
> +      - description: Main Oscillator (24 MHz)
> +      - description: RMII reference clock
> +      - description: RGMII RX clock
> +      - description: I2S TX bit clock
> +      - description: I2S TX left/right clock
> +      - description: I2S RX bit clock
> +      - description: I2S RX left/right clock
> +      - description: TDM
> +      - description: mclk

Maybe you could ask your colleagues for a better description of these clocks.

> +
> +  clock-names:
> +    items:
> +      - const: osc
> +      - const: gmac1_rmii_refin
> +      - const: gmac1_rgmii_rxin
> +      - const: i2stx_bclk_ext
> +      - const: i2stx_lrck_ext
> +      - const: i2srx_bclk_ext
> +      - const: i2srx_lrck_ext
> +      - const: tdm_ext
> +      - const: mclk_ext
> +
> +  '#clock-cells':
> +    const: 1
> +    description:
> +      See <dt-bindings/clock/starfive-jh7110.h> for valid indices.
> +
> +  '#reset-cells':
> +    const: 1
> +    description:
> +      See <dt-bindings/reset/starfive-jh7110.h> for valid indices.
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - clock-names
> +  - '#clock-cells'
> +  - '#reset-cells'
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    clock-controller@...20000 {
> +        compatible = "starfive,jh7110-syscrg";
> +        reg = <0x13020000 0x10000>;
> +        clocks = <&osc>, <&gmac1_rmii_refin>,
> +                 <&gmac1_rgmii_rxin>,
> +                 <&i2stx_bclk_ext>, <&i2stx_lrck_ext>,
> +                 <&i2srx_bclk_ext>, <&i2srx_lrck_ext>,
> +                 <&tdm_ext>, <&mclk_ext>;
> +        clock-names = "osc", "gmac1_rmii_refin",
> +                      "gmac1_rgmii_rxin",
> +                      "i2stx_bclk_ext", "i2stx_lrck_ext",
> +                      "i2srx_bclk_ext", "i2srx_lrck_ext",
> +                      "tdm_ext", "mclk_ext";
> +        #clock-cells = <1>;
> +        #reset-cells = <1>;
> +    };
> diff --git a/MAINTAINERS b/MAINTAINERS
> index eeab26f5597c..ec6647e2772f 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -19602,7 +19602,7 @@ STARFIVE CLOCK DRIVERS
>  M:     Emil Renner Berthing <kernel@...il.dk>
>  M:     Hal Feng <hal.feng@...rfivetech.com>
>  S:     Maintained
> -F:     Documentation/devicetree/bindings/clock/starfive,jh7100-*.yaml
> +F:     Documentation/devicetree/bindings/clock/starfive*
>  F:     drivers/clk/starfive/
>  F:     include/dt-bindings/clock/starfive*
>
> --
> 2.38.1
>