linux-kernel - Re: [PATCH 3/5] dt: bindings: add mt7621-pll dt binding documentation

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Message-Id: <20190722215136.1FC9121951@mail.kernel.org>
Date:   Mon, 22 Jul 2019 14:51:35 -0700
From:   Stephen Boyd <sboyd@...nel.org>
To:     "open list:COMMON CLK FRAMEWORK" <linux-clk@...r.kernel.org>,
        "open list:MIPS" <linux-mips@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        "open list:STAGING SUBSYSTEM" <devel@...verdev.osuosl.org>,
        Chuanhong Guo <gch981213@...il.com>,
        open list <linux-kernel@...r.kernel.org>
Cc:     Michael Turquette <mturquette@...libre.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Paul Burton <paul.burton@...s.com>,
        James Hogan <jhogan@...nel.org>,
        John Crispin <john@...ozen.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Weijie Gao <hackpascal@...il.com>, NeilBrown <neil@...wn.name>,
        Chuanhong Guo <gch981213@...il.com>
Subject: Re: [PATCH 3/5] dt: bindings: add mt7621-pll dt binding documentation

Quoting Chuanhong Guo (2019-07-09 11:20:16)
> This commit adds device tree binding documentation for MT7621
> PLL controller.
> 
> Signed-off-by: Chuanhong Guo <gch981213@...il.com>
> ---
>  .../bindings/clock/mediatek,mt7621-pll.txt    | 19 +++++++++++++++++++
>  1 file changed, 19 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/clock/mediatek,mt7621-pll.txt
> 
> diff --git a/Documentation/devicetree/bindings/clock/mediatek,mt7621-pll.txt b/Documentation/devicetree/bindings/clock/mediatek,mt7621-pll.txt
> new file mode 100644
> index 000000000000..05c15062cd20
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/mediatek,mt7621-pll.txt
> @@ -0,0 +1,19 @@
> +Binding for Mediatek MT7621 PLL controller
> +
> +The PLL controller provides the 2 main clocks of the SoC: CPU and BUS.
> +
> +Required Properties:
> +- compatible: has to be "mediatek,mt7621-pll"
> +- #clock-cells: has to be one
> +
> +Optional properties:
> +- clock-output-names: should be "cpu", "bus"
> +
> +Example:
> +       pll {
> +               compatible = "mediatek,mt7621-pll", "syscon";

Why is this a syscon and not just part of some larger mt7621 clk
provider node?

> +
> +               #clock-cells = <1>;
> +               clock-output-names = "cpu", "bus";
> +       };
> +