AW: [PATCH v3] arm64: dts: freescale: imx93-phycore-som: Delay the phy reset by a gpio

[Christoph Stoidner]

Hi Andrew,

> On Di, 2025-05-24 at 19:44 -0300, Andrew Lunn wrote:
>
>> diff --git a/arch/arm64/boot/dts/freescale/imx93-phycore-som.dtsi b/arch/arm64/boot/dts/freescale/imx93-phycore-som.dtsi
>> index 88c2657b50e6..b481097f08a4 100644
>> --- a/arch/arm64/boot/dts/freescale/imx93-phycore-som.dtsi
>> +++ b/arch/arm64/boot/dts/freescale/imx93-phycore-som.dtsi
>> @@ -68,6 +68,8 @@ mdio: mdio {
>>               ethphy1: ethernet-phy at 1 {
>>                       compatible = "ethernet-phy-ieee802.3-c22";
>>                       reg = <1>;
>> +                     reset-gpios = <&gpio4 23 GPIO_ACTIVE_HIGH>;
>> +                     reset-assert-us = <30>;
>
>Is there anything in the datasheet about needing a delay after the
>reset? There is a DT property for this:
>
>  reset-deassert-us:
>    description:
>      Delay after the reset was deasserted in microseconds. If
>      this property is missing the delay will be skipped.
No, there is no need for a delay after the reset mentioned in the datasheet.
There is only the delay after the assert (i.E. the pulse width), that I
declared with the property reset-assert-us.

>
>Anyway:
>
>Reviewed-by: Andrew Lunn <andrew at lunn.ch>
Thanks, and regards,
Christoph

>
>    Andrew