[PATCH 1/2] dt-bindings: phy: mediatek,tphy: allow simple nodename pattern

[PATCH 1/2] dt-bindings: phy: mediatek,tphy: allow simple nodename pattern

[Eugen Hristev]

The pattern for the nodename only allows t-phy@... , however, for the case
when the t-phy has no `reg` and only `ranges` (basically when the t-phy
is just a parent node), dtc will throw this warning:

Warning (unit_address_vs_reg): /t-phy@1a243000: node has a unit name, but no reg or ranges property

For a node like this:

	sata_phy: t-phy@1a243000 {
		ranges;

		sata_port: sata-phy@1a243000 {
			reg = <0 0x1a243000 0 0x0100>;
		};
	};

it is normal that the parent node 't-phy' would be without any address, as in:

	sata_phy: t-phy {
		ranges;

		sata_port: sata-phy@1a243000 {
			reg = <0 0x1a243000 0 0x0100>;
		};
	};

because being just a holder it does not have its own reg.

However the binding does not allow such a name for the t-phy, so with this
patch, making the `@[0-9a-f]+` part optional, such node is possible.

Signed-off-by: Eugen Hristev <eugen.hristev@collabora.com>
---
 Documentation/devicetree/bindings/phy/mediatek,tphy.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml b/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml
index 230a17f24966..2bb91542e984 100644
--- a/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml
+++ b/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml
@@ -64,7 +64,7 @@ description: |
 
 properties:
   $nodename:
-    pattern: "^t-phy@[0-9a-f]+$"
+    pattern: "^t-phy(@[0-9a-f]+)?$"
 
   compatible:
     oneOf:
-- 
2.34.1


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[PATCH 2/2] arm64: dts: mediatek: fix t-phy unit name

[Eugen Hristev]

Fix:
Warning (unit_address_vs_reg): /t-phy@1a243000: node has a unit name, but no reg or ranges property
Warning (unit_address_vs_reg): /soc/t-phy@11c00000: node has a unit name, but no reg or ranges property

The ranges is empty thus removing the `@1a243000`, `@11c00000` from
the node name.

Signed-off-by: Eugen Hristev <eugen.hristev@collabora.com>
---
 arch/arm64/boot/dts/mediatek/mt7622.dtsi  | 2 +-
 arch/arm64/boot/dts/mediatek/mt7986a.dtsi | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt7622.dtsi b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
index 36ef2dbe8add..3ee9266fa8e9 100644
--- a/arch/arm64/boot/dts/mediatek/mt7622.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
@@ -905,7 +905,7 @@ sata: sata@1a200000 {
 		status = "disabled";
 	};
 
-	sata_phy: t-phy@1a243000 {
+	sata_phy: t-phy {
 		compatible = "mediatek,mt7622-tphy",
 			     "mediatek,generic-tphy-v1";
 		#address-cells = <2>;
diff --git a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
index 68539ea788df..24eda00e320d 100644
--- a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
@@ -434,7 +434,7 @@ pcie_intc: interrupt-controller {
 			};
 		};
 
-		pcie_phy: t-phy@11c00000 {
+		pcie_phy: t-phy {
 			compatible = "mediatek,mt7986-tphy",
 				     "mediatek,generic-tphy-v2";
 			#address-cells = <2>;
-- 
2.34.1


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Re: [PATCH 2/2] arm64: dts: mediatek: fix t-phy unit name

[Christopher Obbard]

Hi Eugen,

On Fri, 2023-08-11 at 16:07 +0300, Eugen Hristev wrote:
> Fix:
> Warning (unit_address_vs_reg): /t-phy@1a243000: node has a unit name, but no reg or ranges property
> Warning (unit_address_vs_reg): /soc/t-phy@11c00000: node has a unit name, but no reg or ranges property
> 
> The ranges is empty thus removing the `@1a243000`, `@11c00000` from
> the node name.

Does this patch need a Fixes: tag?
It would be also quite nice to say in your commit messsage where the error comes from (make dtbs_check) :-)

> 
> Signed-off-by: Eugen Hristev <eugen.hristev@collabora.com>
> ---
>  arch/arm64/boot/dts/mediatek/mt7622.dtsi  | 2 +-
>  arch/arm64/boot/dts/mediatek/mt7986a.dtsi | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt7622.dtsi b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
> index 36ef2dbe8add..3ee9266fa8e9 100644
> --- a/arch/arm64/boot/dts/mediatek/mt7622.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
> @@ -905,7 +905,7 @@ sata: sata@1a200000 {
>  		status = "disabled";
>  	};
>  
> -	sata_phy: t-phy@1a243000 {
> +	sata_phy: t-phy {
>  		compatible = "mediatek,mt7622-tphy",
>  			     "mediatek,generic-tphy-v1";
>  		#address-cells = <2>;
> diff --git a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
> index 68539ea788df..24eda00e320d 100644
> --- a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
> @@ -434,7 +434,7 @@ pcie_intc: interrupt-controller {
>  			};
>  		};
>  
> -		pcie_phy: t-phy@11c00000 {
> +		pcie_phy: t-phy {
>  			compatible = "mediatek,mt7986-tphy",
>  				     "mediatek,generic-tphy-v2";
>  			#address-cells = <2>;
> -- 
> 2.34.1


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