[PATCH v2 1/2] dt-bindings: phy: mediatek,tphy: allow simple nodename pattern

[PATCH v2 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>
---
Changes in v2:
- none
 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

[PATCH v2 2/2] arm64: dts: mediatek: fix t-phy unit name

[Eugen Hristev]

dtbs_check throws a warning at t-phy nodes:
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.

Fixes: 6029cae696c8 ("arm64: dts: mediatek: mt7622: harmonize node names and compatibles")
Fixes: 918aed7abd2d ("arm64: dts: mt7986: add pcie related device nodes")
Signed-off-by: Eugen Hristev <eugen.hristev@collabora.com>
---
Changes in v2:
- mention dtbs_check in the commit message and blame some commits

 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

Re: [PATCH v2 1/2] dt-bindings: phy: mediatek,tphy: allow simple nodename pattern

[Conor Dooley]

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On Mon, Aug 14, 2023 at 12:39:30PM +0300, Eugen Hristev wrote:
> 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>

This seems reasonable to me, perhaps the lads will scream.
Acked-by: Conor Dooley <conor.dooley@microchip.com>

Thanks,
Conor.

> ---
> Changes in v2:
> - none
>  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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Re: (subset) [PATCH v2 1/2] dt-bindings: phy: mediatek,tphy: allow simple nodename pattern

[Vinod Koul]

On Mon, 14 Aug 2023 12:39:30 +0300, Eugen Hristev wrote:
> 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:
> 
> [...]

Applied, thanks!

[1/2] dt-bindings: phy: mediatek,tphy: allow simple nodename pattern
      commit: e4077ca4ebdefa1b4616e4dafcb67b621253b233

Best regards,
-- 
~Vinod

Re: [PATCH v2 2/2] arm64: dts: mediatek: fix t-phy unit name

[AngeloGioacchino Del Regno]

Il 14/08/23 11:39, Eugen Hristev ha scritto:
> dtbs_check throws a warning at t-phy nodes:
> 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.
> 
> Fixes: 6029cae696c8 ("arm64: dts: mediatek: mt7622: harmonize node names and compatibles")
> Fixes: 918aed7abd2d ("arm64: dts: mt7986: add pcie related device nodes")
> Signed-off-by: Eugen Hristev <eugen.hristev@collabora.com>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>