linux-kernel - Re: [PATCH net-next v6 9/9] net: dsa: microchip: Ensure Stable PME Pin State for Wake-on-LAN

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Date:   Thu, 19 Oct 2023 20:24:06 +0300
From:   Vladimir Oltean <olteanv@...il.com>
To:     Oleksij Rempel <o.rempel@...gutronix.de>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Andrew Lunn <andrew@...n.ch>,
        Eric Dumazet <edumazet@...gle.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Woojung Huh <woojung.huh@...rochip.com>,
        Arun Ramadoss <arun.ramadoss@...rochip.com>,
        Conor Dooley <conor+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>, kernel@...gutronix.de,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        UNGLinuxDriver@...rochip.com,
        "Russell King (Oracle)" <linux@...linux.org.uk>,
        devicetree@...r.kernel.org
Subject: Re: [PATCH net-next v6 9/9] net: dsa: microchip: Ensure Stable PME
 Pin State for Wake-on-LAN

On Thu, Oct 19, 2023 at 02:28:50PM +0200, Oleksij Rempel wrote:
> Ensures a stable PME (Power Management Event) pin state by disabling PME
> on system start and enabling it on shutdown only if WoL (Wake-on-LAN) is
> configured. This is needed to avoid issues with some PMICs (Power
> Management ICs).
> 
> Signed-off-by: Oleksij Rempel <o.rempel@...gutronix.de>
> ---
> index fa8d0318b437..9e6f1e4b57b7 100644
> --- a/drivers/net/dsa/microchip/ksz9477.h
> +++ b/drivers/net/dsa/microchip/ksz9477.h
> @@ -62,6 +62,7 @@ void ksz9477_get_wol(struct ksz_device *dev, int port,
>  		     struct ethtool_wolinfo *wol);
>  int ksz9477_set_wol(struct ksz_device *dev, int port,
>  		    struct ethtool_wolinfo *wol);
> +void ksz9477_wol_pre_shutdown(struct ksz_device *dev, bool *wol_is_on);

nitpick: Please synchronize the prototype definition with the
declaration (the name of the "wol_is_on" argument differs).

>  
>  int ksz9477_port_acl_init(struct ksz_device *dev, int port);
>  void ksz9477_port_acl_free(struct ksz_device *dev, int port);

Otherwise:

Reviewed-by: Vladimir Oltean <vladimir.oltean@....com>