Re: [PATCH v7 02/14] dt-bindings: net: mediatek,net: update for mt7988

From: Krzysztof Kozlowski
Date: Tue Jul 01 2025 - 02:42:16 EST


On Sat, Jun 28, 2025 at 06:54:37PM +0200, Frank Wunderlich wrote:
> From: Frank Wunderlich <frank-w@xxxxxxxxxxxxxxx>
>
> Update binding for mt7988 which has 3 gmac and a sram for dma
> operations.

I asked why you are updating. You claim you update because it has 3
GMAC... but that's irrelevant, because it is easy to answer with: it did
not have 3 GMAC before?

So same question: Provide real reason why you are making updates. That's
why you have commit msg.


>
> MT7988 has 4 FE IRQs (currently only 2 are used) and 4 IRQs for use

mt7988 or MT7988? gmac or GMAC? SRAM or SRAM? and so on... it is not
easy to read and understand your commit msgs.

> with RSS/LRO later.
>
> Signed-off-by: Frank Wunderlich <frank-w@xxxxxxxxxxxxxxx>
> ---
> v6:
> - split out the interrupt-names into separate patch
> - update irq(name) min count to 4
> - add sram-property
> - drop second reg entry and minitems as there is only 1 item left again
>
> v5:
> - fix v4 logmessage and change description a bit describing how i get
> the irq count.
> - update binding for 8 irqs with different names (rx,tx => fe0..fe3)
> including the 2 reserved irqs which can be used later
> - change rx-ringX to pdmaX to be closer to hardware documentation
>
> v4:
> - increase max interrupts to 6 because of adding RSS/LRO interrupts (4)
> and dropping 2 reserved irqs (0+3) around rx+tx
> - dropped Robs RB due to this change
> - allow interrupt names
> - add interrupt-names without reserved IRQs on mt7988
> this requires mtk driver patch:
> https://patchwork.kernel.org/project/netdevbpf/patch/20250616080738.117993-2-linux@xxxxxxxxx/
>
> v2:
> - change reg to list of items
> ---
> Documentation/devicetree/bindings/net/mediatek,net.yaml | 9 +++++++--
> 1 file changed, 7 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/net/mediatek,net.yaml b/Documentation/devicetree/bindings/net/mediatek,net.yaml
> index 6672db206b38..74a139000f60 100644
> --- a/Documentation/devicetree/bindings/net/mediatek,net.yaml
> +++ b/Documentation/devicetree/bindings/net/mediatek,net.yaml
> @@ -28,7 +28,8 @@ properties:
> - ralink,rt5350-eth
>
> reg:
> - maxItems: 1
> + items:
> + - description: Register for accessing the MACs.

Why making this change? It's redundant and nothing in commit msg
explains that.

Best regards,
Krzysztof