[PATCH] net: stmmac: Support gpio high-level reset for devices requiring it

[Russell King (Oracle)]

On Wed, Jul 09, 2025 at 07:42:55PM +0800, lizhe wrote:
> Hi,
>     i have already declared it in the DTS.
> 
>     &gmac {
>             snps,reset-gpio = <&gpio3 RK_PB7 GPIO_ACTIVE_HIGH>;
>     };

Active high means that the reset is in effect when the output is at the
logic '1' state. So, gpiod_get_value*() will return the same as
gpiod_get_raw_value*().

Active low means that the reset is in effect when the output is at the
logic '0' state, and in that case the return value of
gpiod_get_value*() will return true when the reset is active (at logic
'0' state) whereas gpiod_get_raw_value*() will return zero.

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