Re: [PATCH net-next v2 1/3] net: phy: dp83tg720: implement soft reset with asymmetric delay

[Andrew Lunn]

On Thu, Jun 12, 2025 at 12:41:55PM +0200, Oleksij Rempel wrote:
> From: David Jander <david@xxxxxxxxxxx>
> 
> Add a .soft_reset callback for the DP83TG720 PHY that issues a hardware
> reset followed by an asymmetric post-reset delay. The delay differs
> based on the PHY's master/slave role to avoid synchronized reset
> deadlocks, which are known to occur when both link partners use
> identical reset intervals.
> 
> The delay includes:
> - a fixed 1ms wait to satisfy MDC access timing per datasheet, and
> - an empirically chosen extra delay (97ms for master, 149ms for slave).
> 
> Co-developed-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
> Signed-off-by: David Jander <david@xxxxxxxxxxx>
> Signed-off-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>

Reviewed-by: Andrew Lunn <andrew@xxxxxxx>

    Andrew