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Date:   Thu, 9 Apr 2020 19:15:28 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Rob Herring <robh@...nel.org>
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Maxime Ripard <mripard@...nel.org>,
        Chen-Yu Tsai <wens@...e.org>, Nuno S? <nuno.sa@...log.com>,
        Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Lee Jones <lee.jones@...aro.org>,
        "David S. Miller" <davem@...emloft.net>,
        Matt Mackall <mpm@...enic.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Nicolas Saenz Julienne <nsaenzjulienne@...e.de>,
        Florian Fainelli <f.fainelli@...il.com>,
        Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>,
        bcm-kernel-feedback-list@...adcom.com,
        Mark Brown <broonie@...nel.org>, linux-hwmon@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        netdev@...r.kernel.org, linux-crypto@...r.kernel.org,
        linux-rpi-kernel@...ts.infradead.org, linux-spi@...r.kernel.org,
        linux-usb@...r.kernel.org
Subject: Re: [PATCH] dt-bindings: Fix dtc warnings on reg and ranges in
 examples

On Thu 09 Apr 13:24 PDT 2020, Rob Herring wrote:

> A recent update to dtc and changes to the default warnings introduced
> some new warnings in the DT binding examples:
> 
> Documentation/devicetree/bindings/arm/sunxi/allwinner,sun4i-a10-mbus.example.dts:23.13-61:
>  Warning (dma_ranges_format): /example-0/dram-controller@...1000:dma-ranges: "dma-ranges" property has invalid length (12 bytes) (parent #address-cells == 1, child #address-cells == 2, #size-cells == 1)
> Documentation/devicetree/bindings/hwmon/adi,axi-fan-control.example.dts:17.22-28.11:
>  Warning (unit_address_vs_reg): /example-0/fpga-axi@0: node has a unit name, but no reg or ranges property
> Documentation/devicetree/bindings/memory-controllers/nvidia,tegra186-mc.example.dts:34.13-54:
>  Warning (dma_ranges_format): /example-0/memory-controller@...0000:dma-ranges: "dma-ranges" property has invalid length (24 bytes) (parent #address-cells == 1, child #address-cells == 2, #size-cells == 2)
> Documentation/devicetree/bindings/mfd/st,stpmic1.example.dts:19.15-79.11:
>  Warning (unit_address_vs_reg): /example-0/i2c@0: node has a unit name, but no reg or ranges property
> Documentation/devicetree/bindings/net/qcom,ipq8064-mdio.example.dts:28.23-31.15:
>  Warning (unit_address_vs_reg): /example-0/mdio@...00000/switch@10: node has a unit name, but no reg or ranges property
> Documentation/devicetree/bindings/rng/brcm,bcm2835.example.dts:17.5-21.11:
>  Warning (unit_address_vs_reg): /example-0/rng: node has a reg or ranges property, but no unit name
> Documentation/devicetree/bindings/spi/qcom,spi-qcom-qspi.example.dts:20.20-43.11:
>  Warning (unit_address_vs_reg): /example-0/soc@0: node has a unit name, but no reg or ranges property
> Documentation/devicetree/bindings/usb/ingenic,musb.example.dts:18.28-21.11:
>  Warning (unit_address_vs_reg): /example-0/usb-phy@0: node has a unit name, but no reg or ranges property
> 
> Cc: Maxime Ripard <mripard@...nel.org>
> Cc: Chen-Yu Tsai <wens@...e.org>
> Cc: "Nuno Sá" <nuno.sa@...log.com>
> Cc: Jean Delvare <jdelvare@...e.com>
> Cc: Guenter Roeck <linux@...ck-us.net>
> Cc: Thierry Reding <thierry.reding@...il.com>
> Cc: Jonathan Hunter <jonathanh@...dia.com>
> Cc: Lee Jones <lee.jones@...aro.org>
> Cc: Bjorn Andersson <bjorn.andersson@...aro.org>
> Cc: "David S. Miller" <davem@...emloft.net>
> Cc: Matt Mackall <mpm@...enic.com>
> Cc: Herbert Xu <herbert@...dor.apana.org.au>
> Cc: Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
> Cc: Florian Fainelli <f.fainelli@...il.com>
> Cc: Ray Jui <rjui@...adcom.com>
> Cc: Scott Branden <sbranden@...adcom.com>
> Cc: bcm-kernel-feedback-list@...adcom.com
> Cc: Mark Brown <broonie@...nel.org>
> Cc: linux-hwmon@...r.kernel.org
> Cc: linux-tegra@...r.kernel.org
> Cc: linux-arm-msm@...r.kernel.org
> Cc: netdev@...r.kernel.org
> Cc: linux-crypto@...r.kernel.org
> Cc: linux-rpi-kernel@...ts.infradead.org
> Cc: linux-spi@...r.kernel.org
> Cc: linux-usb@...r.kernel.org
> Signed-off-by: Rob Herring <robh@...nel.org>

Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>

Regards,
Bjorn

> ---
> Will take this via the DT tree.
> 
> Rob
> 
>  .../arm/sunxi/allwinner,sun4i-a10-mbus.yaml   |  6 +++
>  .../bindings/hwmon/adi,axi-fan-control.yaml   |  2 +-
>  .../nvidia,tegra186-mc.yaml                   | 41 +++++++++++--------
>  .../devicetree/bindings/mfd/st,stpmic1.yaml   |  2 +-
>  .../bindings/net/qcom,ipq8064-mdio.yaml       |  1 +
>  .../devicetree/bindings/rng/brcm,bcm2835.yaml |  2 +-
>  .../bindings/spi/qcom,spi-qcom-qspi.yaml      |  2 +-
>  .../devicetree/bindings/usb/ingenic,musb.yaml |  2 +-
>  8 files changed, 35 insertions(+), 23 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/arm/sunxi/allwinner,sun4i-a10-mbus.yaml b/Documentation/devicetree/bindings/arm/sunxi/allwinner,sun4i-a10-mbus.yaml
> index aa0738b4d534..e713a6fe4cf7 100644
> --- a/Documentation/devicetree/bindings/arm/sunxi/allwinner,sun4i-a10-mbus.yaml
> +++ b/Documentation/devicetree/bindings/arm/sunxi/allwinner,sun4i-a10-mbus.yaml
> @@ -42,6 +42,10 @@ properties:
>      description:
>        See section 2.3.9 of the DeviceTree Specification.
>  
> +  '#address-cells': true
> +
> +  '#size-cells': true
> +
>  required:
>    - "#interconnect-cells"
>    - compatible
> @@ -59,6 +63,8 @@ examples:
>          compatible = "allwinner,sun5i-a13-mbus";
>          reg = <0x01c01000 0x1000>;
>          clocks = <&ccu CLK_MBUS>;
> +        #address-cells = <1>;
> +        #size-cells = <1>;
>          dma-ranges = <0x00000000 0x40000000 0x20000000>;
>          #interconnect-cells = <1>;
>      };
> diff --git a/Documentation/devicetree/bindings/hwmon/adi,axi-fan-control.yaml b/Documentation/devicetree/bindings/hwmon/adi,axi-fan-control.yaml
> index 57a240d2d026..29bb2c778c59 100644
> --- a/Documentation/devicetree/bindings/hwmon/adi,axi-fan-control.yaml
> +++ b/Documentation/devicetree/bindings/hwmon/adi,axi-fan-control.yaml
> @@ -47,7 +47,7 @@ required:
>  
>  examples:
>    - |
> -    fpga_axi: fpga-axi@0 {
> +    fpga_axi: fpga-axi {
>              #address-cells = <0x2>;
>              #size-cells = <0x1>;
>  
> diff --git a/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra186-mc.yaml b/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra186-mc.yaml
> index 12516bd89cf9..611bda38d187 100644
> --- a/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra186-mc.yaml
> +++ b/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra186-mc.yaml
> @@ -97,30 +97,35 @@ examples:
>      #include <dt-bindings/clock/tegra186-clock.h>
>      #include <dt-bindings/interrupt-controller/arm-gic.h>
>  
> -    memory-controller@...0000 {
> -        compatible = "nvidia,tegra186-mc";
> -        reg = <0x0 0x02c00000 0x0 0xb0000>;
> -        interrupts = <GIC_SPI 223 IRQ_TYPE_LEVEL_HIGH>;
> -
> +    bus {
>          #address-cells = <2>;
>          #size-cells = <2>;
>  
> -        ranges = <0x0 0x02c00000 0x02c00000 0x0 0xb0000>;
> +        memory-controller@...0000 {
> +            compatible = "nvidia,tegra186-mc";
> +            reg = <0x0 0x02c00000 0x0 0xb0000>;
> +            interrupts = <GIC_SPI 223 IRQ_TYPE_LEVEL_HIGH>;
> +
> +            #address-cells = <2>;
> +            #size-cells = <2>;
> +
> +            ranges = <0x0 0x02c00000 0x0 0x02c00000 0x0 0xb0000>;
>  
> -        /*
> -         * Memory clients have access to all 40 bits that the memory
> -         * controller can address.
> -         */
> -        dma-ranges = <0x0 0x0 0x0 0x0 0x100 0x0>;
> +            /*
> +             * Memory clients have access to all 40 bits that the memory
> +             * controller can address.
> +             */
> +            dma-ranges = <0x0 0x0 0x0 0x0 0x100 0x0>;
>  
> -        external-memory-controller@...0000 {
> -            compatible = "nvidia,tegra186-emc";
> -            reg = <0x0 0x02c60000 0x0 0x50000>;
> -            interrupts = <GIC_SPI 224 IRQ_TYPE_LEVEL_HIGH>;
> -            clocks = <&bpmp TEGRA186_CLK_EMC>;
> -            clock-names = "emc";
> +            external-memory-controller@...0000 {
> +                compatible = "nvidia,tegra186-emc";
> +                reg = <0x0 0x02c60000 0x0 0x50000>;
> +                interrupts = <GIC_SPI 224 IRQ_TYPE_LEVEL_HIGH>;
> +                clocks = <&bpmp TEGRA186_CLK_EMC>;
> +                clock-names = "emc";
>  
> -            nvidia,bpmp = <&bpmp>;
> +                nvidia,bpmp = <&bpmp>;
> +            };
>          };
>      };
>  
> diff --git a/Documentation/devicetree/bindings/mfd/st,stpmic1.yaml b/Documentation/devicetree/bindings/mfd/st,stpmic1.yaml
> index d9ad9260e348..f88d13d70441 100644
> --- a/Documentation/devicetree/bindings/mfd/st,stpmic1.yaml
> +++ b/Documentation/devicetree/bindings/mfd/st,stpmic1.yaml
> @@ -274,7 +274,7 @@ examples:
>    - |
>      #include <dt-bindings/mfd/st,stpmic1.h>
>      #include <dt-bindings/interrupt-controller/arm-gic.h>
> -    i2c@0 {
> +    i2c {
>        #address-cells = <1>;
>        #size-cells = <0>;
>        pmic@33 {
> diff --git a/Documentation/devicetree/bindings/net/qcom,ipq8064-mdio.yaml b/Documentation/devicetree/bindings/net/qcom,ipq8064-mdio.yaml
> index b9f90081046f..67df3fe861ee 100644
> --- a/Documentation/devicetree/bindings/net/qcom,ipq8064-mdio.yaml
> +++ b/Documentation/devicetree/bindings/net/qcom,ipq8064-mdio.yaml
> @@ -48,6 +48,7 @@ examples:
>  
>          switch@10 {
>              compatible = "qca,qca8337";
> +            reg = <0x10>;
>              /* ... */
>          };
>      };
> diff --git a/Documentation/devicetree/bindings/rng/brcm,bcm2835.yaml b/Documentation/devicetree/bindings/rng/brcm,bcm2835.yaml
> index 89ab67f20a7f..c147900f9041 100644
> --- a/Documentation/devicetree/bindings/rng/brcm,bcm2835.yaml
> +++ b/Documentation/devicetree/bindings/rng/brcm,bcm2835.yaml
> @@ -39,7 +39,7 @@ additionalProperties: false
>  
>  examples:
>    - |
> -    rng {
> +    rng@...04000 {
>          compatible = "brcm,bcm2835-rng";
>          reg = <0x7e104000 0x10>;
>          interrupts = <2 29>;
> diff --git a/Documentation/devicetree/bindings/spi/qcom,spi-qcom-qspi.yaml b/Documentation/devicetree/bindings/spi/qcom,spi-qcom-qspi.yaml
> index 0cf470eaf2a0..5c16cf59ca00 100644
> --- a/Documentation/devicetree/bindings/spi/qcom,spi-qcom-qspi.yaml
> +++ b/Documentation/devicetree/bindings/spi/qcom,spi-qcom-qspi.yaml
> @@ -61,7 +61,7 @@ examples:
>      #include <dt-bindings/clock/qcom,gcc-sdm845.h>
>      #include <dt-bindings/interrupt-controller/arm-gic.h>
>  
> -    soc: soc@0 {
> +    soc: soc {
>          #address-cells = <2>;
>          #size-cells = <2>;
>  
> diff --git a/Documentation/devicetree/bindings/usb/ingenic,musb.yaml b/Documentation/devicetree/bindings/usb/ingenic,musb.yaml
> index 1d6877875077..c2d2ee43ba67 100644
> --- a/Documentation/devicetree/bindings/usb/ingenic,musb.yaml
> +++ b/Documentation/devicetree/bindings/usb/ingenic,musb.yaml
> @@ -56,7 +56,7 @@ additionalProperties: false
>  examples:
>    - |
>      #include <dt-bindings/clock/jz4740-cgu.h>
> -    usb_phy: usb-phy@0 {
> +    usb_phy: usb-phy {
>        compatible = "usb-nop-xceiv";
>        #phy-cells = <0>;
>      };
> -- 
> 2.20.1
> 

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