linux-kernel - Re: [PATCH] dt-bindings: net: mediatek: remove wrongly added clocks and SerDes

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Date: Wed, 1 May 2024 18:07:44 +0100
From: Conor Dooley <conor@...nel.org>
To: Daniel Golle <daniel@...rotopia.org>
Cc: "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Lorenzo Bianconi <lorenzo@...nel.org>, Felix Fietkau <nbd@....name>,
	netdev@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH] dt-bindings: net: mediatek: remove wrongly added clocks
 and SerDes

On Tue, Apr 30, 2024 at 10:53:55PM +0100, Daniel Golle wrote:
> Several clocks as well as both sgmiisys phandles were added by mistake
> to the Ethernet bindings for MT7988.
> 
> This happened because the vendor driver which served as a reference uses
> a high number of syscon phandles to access various parts of the SoC
> which wasn't acceptable upstream. Hence several parts which have never
> previously been supported (such SerDes PHY and USXGMII PCS) are going to
> be implemented by separate drivers. As a result the device tree will
> look much more sane.
> 
> Quickly align the bindings with the upcoming reality of the drivers
> actually adding support for the remaining Ethernet-related features of
> the MT7988 SoC.
> 
> Fixes: c94a9aabec36 ("dt-bindings: net: mediatek,net: add mt7988-eth binding")
> Signed-off-by: Daniel Golle <daniel@...rotopia.org>
> ---
>  .../devicetree/bindings/net/mediatek,net.yaml | 32 ++++---------------
>  1 file changed, 7 insertions(+), 25 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/net/mediatek,net.yaml b/Documentation/devicetree/bindings/net/mediatek,net.yaml
> index e74502a0afe8..030d106bc7d3 100644
> --- a/Documentation/devicetree/bindings/net/mediatek,net.yaml
> +++ b/Documentation/devicetree/bindings/net/mediatek,net.yaml
> @@ -337,32 +337,23 @@ allOf:
>            minItems: 4
>  
>          clocks:
> -          minItems: 34
> -          maxItems: 34
> +          minItems: 24
> +          maxItems: 24
>  
>          clock-names:
>            items:
> -            - const: crypto
> +            - const: xgp1
> +            - const: xgp2
> +            - const: xgp3

Why is the ordering changing too?

>              - const: fe
>              - const: gp2
>              - const: gp1
>              - const: gp3
> +            - const: esw
> +            - const: crypto
>              - const: ethwarp_wocpu2
>              - const: ethwarp_wocpu1
>              - const: ethwarp_wocpu0
> -            - const: esw
> -            - const: netsys0
> -            - const: netsys1
> -            - const: sgmii_tx250m
> -            - const: sgmii_rx250m
> -            - const: sgmii2_tx250m
> -            - const: sgmii2_rx250m
> -            - const: top_usxgmii0_sel
> -            - const: top_usxgmii1_sel
> -            - const: top_sgm0_sel
> -            - const: top_sgm1_sel
> -            - const: top_xfi_phy0_xtal_sel
> -            - const: top_xfi_phy1_xtal_sel
>              - const: top_eth_gmii_sel
>              - const: top_eth_refck_50m_sel
>              - const: top_eth_sys_200m_sel
> @@ -375,15 +366,6 @@ allOf:
>              - const: top_netsys_sync_250m_sel
>              - const: top_netsys_ppefb_250m_sel
>              - const: top_netsys_warp_sel
> -            - const: wocpu1
> -            - const: wocpu0
> -            - const: xgp1
> -            - const: xgp2
> -            - const: xgp3
> -
> -        mediatek,sgmiisys:
> -          minItems: 2
> -          maxItems: 2
>  
>  patternProperties:
>    "^mac@[0-1]$":
> -- 
> 2.44.0
> 

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