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References: <20191021132322.25256-1-narmstrong@baylibre.com>
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From:   Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Date:   Thu, 24 Oct 2019 21:59:17 +0200
Message-ID: <CAFBinCAv7fVBbZaUW-5unjcuOAWtEbDsjZFa=WeSRff7_Zrf2A@mail.gmail.com>
Subject: Re: [PATCH] dt-bindings: usb: dwc3: Move Amlogic G12A DWC3 Glue
 Bindings to YAML schemas
To:     Neil Armstrong <narmstrong@baylibre.com>
Cc:     robh+dt@kernel.org, devicetree@vger.kernel.org,
        linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-amlogic@lists.infradead.org,
        linux-arm-kernel@lists.infradead.org
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Hi Neil,

On Mon, Oct 21, 2019 at 3:23 PM Neil Armstrong <narmstrong@baylibre.com> wrote:
[...]
> diff --git a/Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml b/Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml
> new file mode 100644
> index 000000000000..45bcc98ee9a4
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml
> @@ -0,0 +1,132 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +# Copyright 2019 BayLibre, SAS
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/usb/amlogic,meson-g12a-usb-ctrl.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> +
> +title: Amlogic Meson G12A DWC3 USB SoC Controller Glue
> +
> +maintainers:
> +  - Neil Armstrong <narmstrong@baylibre.com>
> +
> +description: |
> +  The Amlogic G12A embeds a DWC3 USB IP Core configured for USB2 and USB3
> +  in host-only mode, and a DWC2 IP Core configured for USB2 peripheral mode
> +  only.
> +
> +  A glue connects the DWC3 core to USB2 PHYs and optionnaly to an USB3 PHY.
optionnaly -> optionally

> +
> +  One of the USB2 PHY can be re-routed in peripheral mode to a DWC2 USB IP.
One of the USB2 PHYs...

with these two fixed:
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

[...]
> +  phy-names:
> +    items:
> +      - const: usb2-phy0 # USB2 PHY0 if USBHOST_A port is used
> +      - const: usb2-phy1 # USB2 PHY1 if USBOTG_B port is used
> +      - const: usb3-phy0 # USB3 PHY if USB3_0 is used
> +
> +  phys:
> +    minItems: 1
> +    maxItems: 3
(off-topic and probably a question for Rob: do you know the validation
mechanism knows that phys and phy-names belong together. so if one phy
is omitted then phy-names can be shorter than 3 entries?)


Martin