linux-kernel - Re: [PATCH v2 1/4] dt-bindings: mfd: sprd: Add bindings for ums512 global registers

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Date:   Thu, 16 Sep 2021 08:08:50 -0500
From:   Rob Herring <robh@...nel.org>
To:     Chunyan Zhang <zhang.lyra@...il.com>
Cc:     Stephen Boyd <sboyd@...nel.org>, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, Baolin Wang <baolin.wang7@...il.com>,
        Orson Zhai <orsonzhai@...il.com>,
        Chunyan Zhang <chunyan.zhang@...soc.com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 1/4] dt-bindings: mfd: sprd: Add bindings for ums512
 global registers

On Thu, Sep 16, 2021 at 04:47:11PM +0800, Chunyan Zhang wrote:
> From: Chunyan Zhang <chunyan.zhang@...soc.com>
> 
> Add bindings for Unisoc system global register which provide register map
> for clocks.
> 
> Signed-off-by: Chunyan Zhang <chunyan.zhang@...soc.com>
> ---
>  .../bindings/mfd/sprd,ums512-glbreg.yaml      | 67 +++++++++++++++++++
>  1 file changed, 67 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mfd/sprd,ums512-glbreg.yaml
> 
> diff --git a/Documentation/devicetree/bindings/mfd/sprd,ums512-glbreg.yaml b/Documentation/devicetree/bindings/mfd/sprd,ums512-glbreg.yaml
> new file mode 100644
> index 000000000000..cf9dad06bb4e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/sprd,ums512-glbreg.yaml
> @@ -0,0 +1,67 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mfd/sprd,ums512-glbreg.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Unisoc System Global Register Device Tree Bindings
> +
> +maintainers:
> +  - Orson Zhai <orsonzhai@...il.com>
> +  - Baolin Wang <baolin.wang7@...il.com>
> +  - Chunyan Zhang <zhang.lyra@...il.com>
> +
> +description:
> +  Unisoc system global registers provide register map
> +  for clocks and some multimedia modules of the SoC.
> +
> +properties:
> +  "#address-cells": true
> +  "#size-cells": true
> +
> +  compatible:
> +    items:
> +      - const: sprd,ums512-glbregs
> +      - const: syscon
> +      - const: simple-mfd
> +
> +  ranges:
> +    maxItems: 1
> +
> +  reg:
> +    maxItems: 1
> +
> +patternProperties:
> +  "^.*@[0-9a-f]+$":

"clock-controller@[0-9a-f]+$"

> +    # Child node
> +    type: object
> +    $ref: "../clock/sprd,ums512-clk.yaml"
> +    description:
> +      Clock controller for the SoC clocks. This child node definition
> +      should follow the bindings specified in
> +      Documentation/devicetree/bindings/clock/sprd,ums512-clk.yaml.

No need to reference this file twice.

> +
> +required:
> +  - compatible
> +  - reg
> +  - "#address-cells"
> +  - "#size-cells"
> +  - ranges
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    ap_apb_regs: syscon@...00000 {
> +      compatible = "sprd,ums512-glbregs", "syscon", "simple-mfd";
> +      reg = <0x71000000 0x3000>;
> +      #address-cells = <1>;
> +      #size-cells = <1>;
> +      ranges = <0 0x71000000 0x3000>;
> +
> +      apahb_gate: clock-controller@0 {

Drop unused labels.

> +        compatible = "sprd,ums512-apahb-gate";
> +        reg = <0x0 0x2000>;
> +        #clock-cells = <1>;
> +      };
> +    };
> -- 
> 2.25.1
> 
>