linux-kernel - Re: [PATCH 1/3] dt-bindings: phy: convert Broadcom NS USB 2.0 to the json-schema

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Message-ID: <68de69c3-cf66-2d72-70be-2751963809e8@gmail.com>
Date:   Fri, 5 Mar 2021 18:24:34 +0100
From:   Rafał Miłecki <zajec5@...il.com>
To:     Kishon Vijay Abraham I <kishon@...com>,
        Vinod Koul <vkoul@...nel.org>, Rob Herring <robh+dt@...nel.org>
Cc:     linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        Florian Fainelli <f.fainelli@...il.com>,
        Vivek Unune <npcomplete13@...il.com>,
        bcm-kernel-feedback-list@...adcom.com,
        Rafał Miłecki <rafal@...ecki.pl>,
        linux-phy@...ts.infradead.org
Subject: Re: [PATCH 1/3] dt-bindings: phy: convert Broadcom NS USB 2.0 to the
 json-schema

Cc linux-phy@

On 26.02.2021 12:44, Rafał Miłecki wrote:
> From: Rafał Miłecki <rafal@...ecki.pl>
> 
> Minor example fixes:
> 1. Include bcm-nsp.h
> 2. Add address to the node name
> 
> Signed-off-by: Rafał Miłecki <rafal@...ecki.pl>
> ---
> This has been verified using dt_binding_check
> ---
>   .../bindings/phy/bcm-ns-usb2-phy.txt          | 21 -------
>   .../bindings/phy/brcm,ns-usb2-phy.yaml        | 55 +++++++++++++++++++
>   2 files changed, 55 insertions(+), 21 deletions(-)
>   delete mode 100644 Documentation/devicetree/bindings/phy/bcm-ns-usb2-phy.txt
>   create mode 100644 Documentation/devicetree/bindings/phy/brcm,ns-usb2-phy.yaml
> 
> diff --git a/Documentation/devicetree/bindings/phy/bcm-ns-usb2-phy.txt b/Documentation/devicetree/bindings/phy/bcm-ns-usb2-phy.txt
> deleted file mode 100644
> index a7aee9ea8926..000000000000
> --- a/Documentation/devicetree/bindings/phy/bcm-ns-usb2-phy.txt
> +++ /dev/null
> @@ -1,21 +0,0 @@
> -Driver for Broadcom Northstar USB 2.0 PHY
> -
> -Required properties:
> -- compatible: brcm,ns-usb2-phy
> -- reg: iomem address range of DMU (Device Management Unit)
> -- reg-names: "dmu", the only needed & supported reg right now
> -- clocks: USB PHY reference clock
> -- clock-names: "phy-ref-clk", the only needed & supported clock right now
> -
> -To initialize USB 2.0 PHY driver needs to setup PLL correctly. To do this it
> -requires passing phandle to the USB PHY reference clock.
> -
> -Example:
> -	usb2-phy {
> -		compatible = "brcm,ns-usb2-phy";
> -		reg = <0x1800c000 0x1000>;
> -		reg-names = "dmu";
> -		#phy-cells = <0>;
> -		clocks = <&genpll BCM_NSP_GENPLL_USB_PHY_REF_CLK>;
> -		clock-names = "phy-ref-clk";
> -	};
> diff --git a/Documentation/devicetree/bindings/phy/brcm,ns-usb2-phy.yaml b/Documentation/devicetree/bindings/phy/brcm,ns-usb2-phy.yaml
> new file mode 100644
> index 000000000000..b8b683ce8fa9
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/phy/brcm,ns-usb2-phy.yaml
> @@ -0,0 +1,55 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/phy/brcm,ns-usb2-phy.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Broadcom Northstar USB 2.0 PHY
> +
> +description: Broadcom's USB 2.0 PHY integrated into Northstar family SoCs
> +
> +maintainers:
> +  - Rafał Miłecki <rafal@...ecki.pl>
> +
> +properties:
> +  compatible:
> +    const: brcm,ns-usb2-phy
> +
> +  reg:
> +    maxItems: 1
> +    description: DMU (Device Management Unit) address range
> +
> +  reg-names:
> +    const: dmu
> +
> +  clocks:
> +    maxItems: 1
> +    description: USB PHY reference clock
> +
> +  clock-names:
> +    const: phy-ref-clk
> +
> +  "#phy-cells":
> +    const: 0
> +
> +required:
> +  - reg
> +  - reg-names
> +  - clocks
> +  - clock-names
> +  - "#phy-cells"
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/bcm-nsp.h>
> +
> +    usb2-phy@...0c000 {
> +        compatible = "brcm,ns-usb2-phy";
> +        reg = <0x1800c000 0x1000>;
> +        reg-names = "dmu";
> +        clocks = <&genpll BCM_NSP_GENPLL_USB_PHY_REF_CLK>;
> +        clock-names = "phy-ref-clk";
> +        #phy-cells = <0>;
> +    };
>