Re: [PATCH v5 4/7] net: stmmac: dwmac-meson8b: follow the generic RGMII delay rules on the T7

[Andrew Lunn]

On Tue, Nov 03, 2026 at 04:37:12PM +0000, Lucas Tanure wrote:
> The delay code reads phy-mode as the list of delays this glue has to
> add, falls back to a 2ns transmit delay when no property asks for one,
> and takes the vendor delay properties. ethernet-controller.yaml says
> the opposite: the PHY adds the 2ns delays, and the MAC properties only
> hold small fine tuning added on top. Every board in the tree depends on
> the old reading, so it stays as it is.
> 
> No T7 board uses this glue yet, so the T7 gets a path of its own that
> follows the generic rules: the receive delay line is fine tuning in
> 200ps steps, and the transmit side, a quarter-period phase step, offers
> none, so the transmit property is refused.
> 
> Assisted-by: LLM
> Signed-off-by: Lucas Tanure <tanure@xxxxxxxxx>

Reviewed-by: Andrew Lunn <andrew@xxxxxxx>

    Andrew