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Message-ID: <20221205212924.GA2638223-robh@kernel.org>
Date: Mon, 5 Dec 2022 15:29:24 -0600
From: Rob Herring <robh@...nel.org>
To: Michael Walle <michael@...le.cc>
Cc: Xu Liang <lxu@...linear.com>, Andrew Lunn <andrew@...n.ch>,
Heiner Kallweit <hkallweit1@...il.com>,
Russell King <linux@...linux.org.uk>,
"David S . Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org
Subject: Re: [PATCH net-next v1 3/4] dt-bindings: net: phy: add MaxLinear
GPY2xx bindings
On Fri, Dec 02, 2022 at 04:12:03PM +0100, Michael Walle wrote:
> Add the device tree bindings for the MaxLinear GPY2xx PHYs.
>
> Signed-off-by: Michael Walle <michael@...le.cc>
> ---
>
> Is the filename ok? I was unsure because that flag is only for the GPY215
> for now. But it might also apply to others. Also there is no compatible
> string, so..
>
> .../bindings/net/maxlinear,gpy2xx.yaml | 47 +++++++++++++++++++
> 1 file changed, 47 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/net/maxlinear,gpy2xx.yaml
>
> diff --git a/Documentation/devicetree/bindings/net/maxlinear,gpy2xx.yaml b/Documentation/devicetree/bindings/net/maxlinear,gpy2xx.yaml
> new file mode 100644
> index 000000000000..d71fa9de2b64
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/maxlinear,gpy2xx.yaml
> @@ -0,0 +1,47 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/net/maxlinear,gpy2xx.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: MaxLinear GPY2xx PHY
> +
> +maintainers:
> + - Andrew Lunn <andrew@...n.ch>
> + - Michael Walle <michael@...le.cc>
> +
> +allOf:
> + - $ref: ethernet-phy.yaml#
> +
> +properties:
> + maxlinear,use-broken-interrupts:
> + description: |
> + Interrupts are broken on some GPY2xx PHYs in that they keep the
> + interrupt line asserted even after the interrupt status register is
> + cleared. Thus it is blocking the interrupt line which is usually bad
> + for shared lines. By default interrupts are disabled for this PHY and
> + polling mode is used. If one can live with the consequences, this
> + property can be used to enable interrupt handling.
Just omit the interrupt property if you don't want interrupts and add it
if you do.
> +
> + Affected PHYs (as far as known) are GPY215B and GPY215C.
> + type: boolean
> +
> +dependencies:
> + maxlinear,use-broken-interrupts: [ interrupts ]
> +
> +unevaluatedProperties: false
> +
> +examples:
> + - |
> + ethernet {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + ethernet-phy@0 {
> + reg = <0>;
> + interrupts-extended = <&intc 0>;
> + maxlinear,use-broken-interrupts;
This is never actually checked by be schema because there is nothing to
match on. If you want custom properties, then you need a compatible.
> + };
> + };
> +
> +...
> --
> 2.30.2
>
>
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