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Message-ID: <ZoMn0Pc/agPGKeTS@lizhi-Precision-Tower-5810>
Date: Mon, 1 Jul 2024 18:04:00 -0400
From: Frank Li <Frank.li@....com>
To: Rob Herring <robh@...nel.org>
Cc: krzk@...nel.org, conor+dt@...nel.org, davem@...emloft.net,
devicetree@...r.kernel.org, edumazet@...gle.com,
imx@...ts.linux.dev, krzk+dt@...nel.org, kuba@...nel.org,
linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
pabeni@...hat.com
Subject: Re: [PATCH v2 1/1] dt-bindings: net: convert enetc to yaml
On Thu, Jun 27, 2024 at 09:55:47AM -0600, Rob Herring wrote:
> On Wed, Jun 26, 2024 at 12:23:07PM -0400, Frank Li wrote:
> > Convert enetc device binding file to yaml. Split to 3 yaml files,
> > 'fsl,enetc.yaml', 'fsl,enetc-mdio.yaml', 'fsl,enetc-ierb.yaml'.
> >
> > Additional Changes:
> > - Add pci<vendor id>,<production id> in compatible string.
> > - Ref to common ethernet-controller.yaml and mdio.yaml.
> > - Remove fixed-link part.
> >
> > Signed-off-by: Frank Li <Frank.Li@....com>
> > ---
> > Change from v1 to v2
> > - renamee file as fsl,enetc-mdio.yaml, fsl,enetc-ierb.yaml, fsl,enetc.yaml
> > - example include pcie node
> > ---
> > .../bindings/net/fsl,enetc-ierb.yaml | 35 ++++++
> > .../bindings/net/fsl,enetc-mdio.yaml | 53 ++++++++
> > .../devicetree/bindings/net/fsl,enetc.yaml | 50 ++++++++
> > .../devicetree/bindings/net/fsl-enetc.txt | 119 ------------------
> > 4 files changed, 138 insertions(+), 119 deletions(-)
> > create mode 100644 Documentation/devicetree/bindings/net/fsl,enetc-ierb.yaml
> > create mode 100644 Documentation/devicetree/bindings/net/fsl,enetc-mdio.yaml
> > create mode 100644 Documentation/devicetree/bindings/net/fsl,enetc.yaml
> > delete mode 100644 Documentation/devicetree/bindings/net/fsl-enetc.txt
> >
> > diff --git a/Documentation/devicetree/bindings/net/fsl,enetc-ierb.yaml b/Documentation/devicetree/bindings/net/fsl,enetc-ierb.yaml
> > new file mode 100644
> > index 0000000000000..ce88d7ce07a5e
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/net/fsl,enetc-ierb.yaml
> > @@ -0,0 +1,35 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/net/fsl,enetc-ierb.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Integrated Endpoint Register Block
> > +
> > +description:
> > + The fsl_enetc driver can probe on the Integrated Endpoint Register
> > + Block, which preconfigures the FIFO limits for the ENETC ports.
>
> Wrap at 80 chars
>
> > +
> > +maintainers:
> > + - Frank Li <Frank.Li@....com>
> > +
> > +properties:
> > + compatible:
> > + enum:
> > + - fsl,ls1028a-enetc-ierb
> > +
> > + reg:
> > + maxItems: 1
> > +
> > +required:
> > + - compatible
> > + - reg
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > + - |
> > + ierb@...800000 {
>
> unit-address doesn't match
>
> > + compatible = "fsl,ls1028a-enetc-ierb";
> > + reg = <0xf0800000 0x10000>;
> > + };
> > diff --git a/Documentation/devicetree/bindings/net/fsl,enetc-mdio.yaml b/Documentation/devicetree/bindings/net/fsl,enetc-mdio.yaml
> > new file mode 100644
> > index 0000000000000..60740ea56cb08
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/net/fsl,enetc-mdio.yaml
> > @@ -0,0 +1,53 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/net/fsl,enetc-mdio.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: ENETC the central MDIO PCIe endpoint device
> > +
> > +description:
> > + In this case, the mdio node should be defined as another PCIe
> > + endpoint node, at the same level with the ENETC port nodes
> > +
> > +maintainers:
> > + - Frank Li <Frank.Li@....com>.
>
> stray '.' ^
>
> > +
> > +properties:
> > + compatible:
> > + items:
> > + - enum:
> > + - pci1957,ee01
> > + - const: fsl,enetc-mdio
> > +
> > + reg:
> > + maxItems: 1
> > +
> > +required:
> > + - compatible
> > + - reg
> > +
> > +allOf:
> > + - $ref: mdio.yaml
>
> As a PCI device, also needs pci-device.yaml.
After I add pci-devices.yaml, I get
Documentation/devicetree/bindings/net/fsl,enetc.example.dtb: ethernet@0,0: False schema does not allow {'compatible': ['pci1957,e100', 'fsl,enetc'], 'reg': [[0, 0, 0, 0, 0]], 'phy-handle': [[4294967295]], 'phy-connection-type': ['sgmii'], '$nodename': ['ethernet@0,0']}
It looks like match to two schemas, then report error. If I change enetc's
compatible string to other random string. No error report.
I am not sure how to fix this. I have not seen other schema use
pci-device.yaml yet.
Frank
>
> > +
> > +unevaluatedProperties: false
> > +
> > +examples:
> > + - |
> > + pcie@...000000 {
> > + compatible = "pci-host-ecam-generic";
> > + reg = <0x01 0xf0000000 0x0 0x100000>;
>
> Drop compatible and reg. Just need the minimum to define a PCI bus node.
>
> > + #address-cells = <3>;
> > + #size-cells = <2>;
> > +
> > + mdio@0,3 {
> > + compatible = "pci1957,ee01", "fsl,enetc-mdio";
> > + reg = <0x000300 0 0 0 0>;
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + ethernet-phy@2 {
> > + reg = <0x2>;
> > + };
> > + };
> > + };
> > diff --git a/Documentation/devicetree/bindings/net/fsl,enetc.yaml b/Documentation/devicetree/bindings/net/fsl,enetc.yaml
> > new file mode 100644
> > index 0000000000000..843c27e357f2d
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/net/fsl,enetc.yaml
> > @@ -0,0 +1,50 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/net/fsl,enetc.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: ENETC ethernet
> > +
> > +description:
> > + Depending on board design and ENETC port type (internal or
> > + external) there are two supported link modes specified by
> > + below device tree bindings.
> > +
> > +maintainers:
> > + - Frank Li <Frank.Li@....com>
> > +
> > +properties:
> > + compatible:
> > + items:
> > + - enum:
> > + - pci1957,e100
> > + - const: fsl,enetc
> > +
> > + reg:
> > + maxItems: 1
> > +
> > +required:
> > + - compatible
> > + - reg
> > +
> > +allOf:
> > + - $ref: ethernet-controller.yaml
>
> As a PCI device, also needs pci-device.yaml.
>
> > +
> > +unevaluatedProperties: false
> > +
> > +examples:
> > + - |
> > + pcie@...000000 {
> > + compatible = "pci-host-ecam-generic";
> > + reg = <0x01 0xf0000000 0x0 0x100000>;
> > + #address-cells = <3>;
> > + #size-cells = <2>;
> > +
> > + ethernet@0,0 {
> > + compatible = "pci1957,e100", "fsl,enetc";
> > + reg = <0x000000 0 0 0 0>;
> > + phy-handle = <&sgmii_phy0>;
> > + phy-connection-type = "sgmii";
> > + };
> > + };
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