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Date:   Thu, 5 Dec 2019 08:26:49 -0600
From:   Rob Herring <robh@kernel.org>
To:     Wen He <wen.he_1@nxp.com>
Cc:     Michael Turquette <mturquette@baylibre.com>,
        Stephen Boyd <sboyd@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Michael Walle <michael@walle.cc>, Li Yang <leoyang.li@nxp.com>,
        devicetree@vger.kernel.org, linux-clk@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: Re: [v11 1/2] dt/bindings: clk: Add YAML schemas for LS1028A Display
 Clock bindings
Message-ID: <20191205142649.GA22738@bogus>
References: <20191205072653.34701-1-wen.he_1@nxp.com>
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On Thu, Dec 05, 2019 at 03:26:52PM +0800, Wen He wrote:
> LS1028A has a clock domain PXLCLK0 used for provide pixel clocks to Display
> output interface. Add a YAML schema for this.
> 
> Signed-off-by: Wen He <wen.he_1@nxp.com>
> Signed-off-by: Michael Walle <michael@walle.cc>
> ---
> change in v11:
> 	- renamed 'vco-frequency' to 'fsl,vco-hz' to clearly feild definiation
> 
>  .../devicetree/bindings/clock/fsl,plldig.yaml | 55 +++++++++++++++++++
>  1 file changed, 55 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/clock/fsl,plldig.yaml
> 
> diff --git a/Documentation/devicetree/bindings/clock/fsl,plldig.yaml b/Documentation/devicetree/bindings/clock/fsl,plldig.yaml
> new file mode 100644
> index 000000000000..23cce65b3a93
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/fsl,plldig.yaml
> @@ -0,0 +1,55 @@
> +# SPDX-License-Identifier: GPL-2.0
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/bindings/clock/fsl,plldig.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: NXP QorIQ Layerscape LS1028A Display PIXEL Clock Binding
> +
> +maintainers:
> +  - Wen He <wen.he_1@nxp.com>
> +
> +description: |
> +  NXP LS1028A has a clock domain PXLCLK0 used for the Display output
> +  interface in the display core, as implemented in TSMC CLN28HPM PLL.
> +  which generate and offers pixel clocks to Display.
> +
> +properties:
> +  compatible:
> +    const: fsl,ls1028a-plldig
> +
> +  reg:
> +    maxItems: 1
> +
> +  '#clock-cells':
> +    const: 0
> +
> +  fsl,vco-hz:
> +     $ref: '/schemas/types.yaml#/definitions/uint32'

Drop this as '*-hz' already has a type.

With that,

Reviewed-by: Rob Herring <robh@kernel.org>

> +     description: Optional for VCO frequency of the PLL in Hertz.
> +        The VCO frequency of this PLL cannot be changed during runtime
> +        only at startup. Therefore, the output frequencies are very
> +        limited and might not even closely match the requested frequency.
> +        To work around this restriction the user may specify its own
> +        desired VCO frequency for the PLL.
> +     minimum: 650000000
> +     maximum: 1300000000
> +     default: 1188000000
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - '#clock-cells'
> +
> +examples:
> +  # Display PIXEL Clock node:
> +  - |
> +    dpclk: clock-display@f1f0000 {
> +        compatible = "fsl,ls1028a-plldig";
> +        reg = <0x0 0xf1f0000 0x0 0xffff>;
> +        #clock-cells = <0>;
> +        clocks = <&osc_27m>;
> +    };
> +
> +...
> -- 
> 2.17.1
>