linux-kernel - Re: [PATCH v3 2/4] dt-bindings: clock: Add DT bindings for PLL of Toshiba Visconti TMPV770x SoC

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Date:   Wed, 14 Jul 2021 13:23:39 -0600
From:   Rob Herring <robh@...nel.org>
To:     Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@...hiba.co.jp>
Cc:     Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, punit1.agrawal@...hiba.co.jp,
        yuji2.ishikawa@...hiba.co.jp, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 2/4] dt-bindings: clock: Add DT bindings for PLL of
 Toshiba Visconti TMPV770x SoC

On Thu, Jun 24, 2021 at 12:43:35PM +0900, Nobuhiro Iwamatsu wrote:
> Add device tree bindings for PLL of Toshiba Visconti TMPV770x SoC series.
> 
> Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@...hiba.co.jp>
> ---
>  .../clock/toshiba,tmpv770x-pipllct.yaml       | 49 +++++++++++++++++++
>  1 file changed, 49 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/clock/toshiba,tmpv770x-pipllct.yaml
> 
> diff --git a/Documentation/devicetree/bindings/clock/toshiba,tmpv770x-pipllct.yaml b/Documentation/devicetree/bindings/clock/toshiba,tmpv770x-pipllct.yaml
> new file mode 100644
> index 000000000000..e88c9e4c4982
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/toshiba,tmpv770x-pipllct.yaml
> @@ -0,0 +1,49 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/clock/toshiba,tmpv770x-pipllct.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Toshiba Visconti5 TMPV770X PLL Controller Device Tree Bindings
> +
> +maintainers:
> +  - Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@...hiba.co.jp>
> +
> +description:
> +  Toshia Visconti5 PLL controller which supports the PLLs on TMPV770X.
> +
> +properties:
> +  compatible:
> +    const: toshiba,tmpv7708-pipllct
> +
> +  reg:
> +    maxItems: 1
> +
> +  '#clock-cells':
> +    const: 1
> +
> +  osc2-clk-frequency:
> +    description: Frequency of the OSC2 oscillator.

This is an external input? This should be a fixed-clock and this node 
needs 'clocks' to connect it.

> +
> +required:
> +  - compatible
> +  - reg
> +  - "#clock-cells"
> +  - osc2-clk-frequency
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    soc {
> +        #address-cells = <2>;
> +        #size-cells = <2>;
> +
> +        pipllct: pipllct@...20000 {

clock-controller@...

> +            compatible = "toshiba,tmpv7708-pipllct";
> +            reg = <0 0x24220000 0 0x820>;
> +            #clock-cells = <1>;
> +            osc2-clk-frequency = <20000000>;
> +        };
> +    };
> +...
> -- 
> 2.32.0
> 
>