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Message-ID: <20200116204817.GA9529@bogus>
Date:   Thu, 16 Jan 2020 14:48:17 -0600
From:   Rob Herring <robh@...nel.org>
To:     Jian Hu <jian.hu@...ogic.com>
Cc:     Jerome Brunet <jbrunet@...libre.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Kevin Hilman <khilman@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Qiufang Dai <qiufang.dai@...ogic.com>,
        Jianxin Pan <jianxin.pan@...ogic.com>,
        Victor Wan <victor.wan@...ogic.com>,
        Chandle Zou <chandle.zou@...ogic.com>,
        linux-clk@...r.kernel.org, linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH v6 1/5] dt-bindings: clock: meson: add A1 PLL clock
 controller bindings

On Thu, Jan 16, 2020 at 04:04:36PM +0800, Jian Hu wrote:
> Add the documentation to support Amlogic A1 PLL clock driver,
> and add A1 PLL clock controller bindings.
> 
> Signed-off-by: Jian Hu <jian.hu@...ogic.com>
> ---
>  .../bindings/clock/amlogic,a1-pll-clkc.yaml   | 54 +++++++++++++++++++
>  include/dt-bindings/clock/a1-pll-clkc.h       | 16 ++++++
>  2 files changed, 70 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/clock/amlogic,a1-pll-clkc.yaml
>  create mode 100644 include/dt-bindings/clock/a1-pll-clkc.h
> 
> diff --git a/Documentation/devicetree/bindings/clock/amlogic,a1-pll-clkc.yaml b/Documentation/devicetree/bindings/clock/amlogic,a1-pll-clkc.yaml
> new file mode 100644
> index 000000000000..071240b65e70
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/amlogic,a1-pll-clkc.yaml
> @@ -0,0 +1,54 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/amlogic,a1-pll-clkc.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> +
> +title: Amlogic Meson A/C serials PLL Clock Control Unit Device Tree Bindings
> +
> +maintainers:
> +  - Neil Armstrong <narmstrong@...libre.com>
> +  - Jerome Brunet <jbrunet@...libre.com>
> +  - Jian Hu <jian.hu@...n.hu.com>
> +
> +properties:
> +  compatible:
> +    const: amlogic,a1-pll-clkc
> +
> +  "#clock-cells":
> +    const: 1
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 2

Not necessary, so drop. Implied by the length of 'items'.

> +    items:
> +     - description: input xtal_fixpll
> +     - description: input xtal_hifipll
> +
> +  clock-names:
> +    maxItems: 2

Same here.

> +    items:
> +      - const: xtal_fixpll
> +      - const: xtal_hifipll
> +
> +required:
> +  - compatible
> +  - "#clock-cells"
> +  - reg
> +  - clocks
> +  - clock-names
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    clkc_pll: pll-clock-controller@...0 {
> +                compatible = "amlogic,a1-pll-clkc";
> +                reg = <0 0x7c80 0 0x18c>;
> +                #clock-cells = <1>;
> +                clocks = <&clkc_periphs CLKID_XTAL_FIXPLL>,
> +                         <&clkc_periphs CLKID_XTAL_HIFIPLL>;

The example will fail to build because these aren't defined.

Run 'make dt_binding_check'.

> +                clock-names = "xtal_fixpll", "xtal_hifipll";
> +    };
> diff --git a/include/dt-bindings/clock/a1-pll-clkc.h b/include/dt-bindings/clock/a1-pll-clkc.h
> new file mode 100644
> index 000000000000..58eae237e503
> --- /dev/null
> +++ b/include/dt-bindings/clock/a1-pll-clkc.h
> @@ -0,0 +1,16 @@
> +/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
> +/*
> + * Copyright (c) 2019 Amlogic, Inc. All rights reserved.
> + */
> +
> +#ifndef __A1_PLL_CLKC_H
> +#define __A1_PLL_CLKC_H
> +
> +#define CLKID_FIXED_PLL				1
> +#define CLKID_FCLK_DIV2				6
> +#define CLKID_FCLK_DIV3				7
> +#define CLKID_FCLK_DIV5				8
> +#define CLKID_FCLK_DIV7				9
> +#define CLKID_HIFI_PLL				10
> +
> +#endif /* __A1_PLL_CLKC_H */
> -- 
> 2.24.0
> 

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