netdev - R: [PATCH v8 2/2] dt-bindings: net: Add ipq806x mdio bindings

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Date:   Thu, 27 Feb 2020 23:01:51 +0100
From:   <ansuelsmth@...il.com>
To:     "'Rob Herring'" <robh@...nel.org>
Cc:     "'Andy Gross'" <agross@...nel.org>,
        "'Bjorn Andersson'" <bjorn.andersson@...aro.org>,
        "'David S. Miller'" <davem@...emloft.net>,
        "'Mark Rutland'" <mark.rutland@....com>,
        "'Andrew Lunn'" <andrew@...n.ch>,
        "'Florian Fainelli'" <f.fainelli@...il.com>,
        "'Heiner Kallweit'" <hkallweit1@...il.com>,
        "'Russell King'" <linux@...linux.org.uk>,
        <linux-arm-msm@...r.kernel.org>, <netdev@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: R: [PATCH v8 2/2] dt-bindings: net: Add ipq806x mdio bindings

> On Thu, Feb 27, 2020 at 02:10:46AM +0100, Ansuel Smith wrote:
> > Add documentations for ipq806x mdio driver.
> >
> > Signed-off-by: Ansuel Smith <ansuelsmth@...il.com>
> > ---
> > Changes in v8:
> > - Fix error in dtb check
> > - Remove not needed reset definition from example
> > - Add include header for ipq806x clocks
> > - Fix wrong License type
> >
> > Changes in v7:
> > - Fix dt_binding_check problem
> >
> >  .../bindings/net/qcom,ipq8064-mdio.yaml       | 61
> +++++++++++++++++++
> >  1 file changed, 61 insertions(+)
> >  create mode 100644
> Documentation/devicetree/bindings/net/qcom,ipq8064-mdio.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/net/qcom,ipq8064-
> mdio.yaml b/Documentation/devicetree/bindings/net/qcom,ipq8064-
> mdio.yaml
> > new file mode 100644
> > index 000000000000..4334a415f23c
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/net/qcom,ipq8064-
> mdio.yaml
> > @@ -0,0 +1,61 @@
> > +# SPDX-License-Identifier: GPL-2.0-only
> 
> Dual license new bindings please:
> 
> (GPL-2.0-only OR BSD-2-Clause)
> 
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/net/qcom,ipq8064-mdio.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Qualcomm ipq806x MDIO bus controller
> > +
> > +maintainers:
> > +  - Ansuel Smith <ansuelsmth@...il.com>
> > +
> > +description:
> > +  The ipq806x soc have a MDIO dedicated controller that is
> > +  used to comunicate with the gmac phy conntected.
> 
> 2 typos
> 
> > +  Child nodes of this MDIO bus controller node are standard
> > +  Ethernet PHY device nodes as described in
> > +  Documentation/devicetree/bindings/net/phy.txt
> 
> You might want to read what that file says now.
> 
> > +
> > +allOf:
> > +  - $ref: "mdio.yaml#"
> > +
> > +properties:
> > +  compatible:
> > +    items:
> > +        - const: qcom,ipq8064-mdio
> > +        - const: syscon
> 
> Why is this a 'syscon'? Does it have more than 1 function?
>
 
Since the code use syscon_node_to_regmap, the syscon compatible
is need or the driver fails to load. (since the reg is used also for the 
gmac node) 

Again sorry for the mess as I misread the email... Will fix all in v9 

> > +
> > +  reg:
> > +    description: address and length of the register set for the device
> 
> Drop this and you need to state how many (maxItems).
> 
> > +
> > +  clocks:
> > +    description: A reference to the clock supplying the MDIO bus
> controller
> 
> Same here.
> 
> > +
> > +  clock-names:
> > +    const: master
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - clocks
> > +  - "#address-cells"
> > +  - "#size-cells"
> > +
> > +examples:
> > +  - |
> > +    #include <dt-bindings/clock/qcom,gcc-ipq806x.h>
> > +
> > +    mdio0: mdio@...00000 {
> > +        #address-cells = <1>;
> > +        #size-cells = <0>;
> > +
> > +        compatible = "qcom,ipq8064-mdio", "syscon";
> > +        reg = <0x37000000 0x200000>;
> > +
> > +        clocks = <&gcc GMAC_CORE1_CLK>;
> > +
> > +        switch@10 {
> > +            compatible = "qca,qca8337";
> > +            /* ... */
> > +        };
> > +    };
> > --
> > 2.25.0
> >