netdev - Re: [PATCH 1/2] net: phy: micrel: add Microchip KSZ 9897 Switch PHY support

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Date:   Fri, 4 Feb 2022 15:05:05 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Enguerrand de Ribaucourt 
        <enguerrand.de-ribaucourt@...oirfairelinux.com>
Cc:     netdev@...r.kernel.org, hkallweit1@...il.com, linux@...linux.org.uk
Subject: Re: [PATCH 1/2] net: phy: micrel: add Microchip KSZ 9897 Switch PHY
 support

On Fri, Feb 04, 2022 at 02:36:34PM +0100, Enguerrand de Ribaucourt wrote:
> Adding Microchip 9897 Phy included in KSZ9897 Switch.
> The KSZ9897 shares the same prefix as the KSZ8081. The phy_id_mask was
> updated to allow the KSZ9897 to be matched.
> 
> Signed-off-by: Enguerrand de Ribaucourt <enguerrand.de-ribaucourt@...oirfairelinux.com>
> ---
>  drivers/net/phy/micrel.c   | 15 +++++++++++++--
>  include/linux/micrel_phy.h |  1 +
>  2 files changed, 14 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
> index 44a24b99c894..9b2047e26449 100644
> --- a/drivers/net/phy/micrel.c
> +++ b/drivers/net/phy/micrel.c
> @@ -1726,7 +1726,7 @@ static struct phy_driver ksphy_driver[] = {
>  }, {
>  	.phy_id		= PHY_ID_KSZ8081,
>  	.name		= "Micrel KSZ8081 or KSZ8091",
> -	.phy_id_mask	= MICREL_PHY_ID_MASK,
> +	.phy_id_mask	= 0x00ffffff,

You can probably use PHY_ID_MATCH_EXACT().

>  	.flags		= PHY_POLL_CABLE_TEST,
>  	/* PHY_BASIC_FEATURES */
>  	.driver_data	= &ksz8081_type,
> @@ -1869,6 +1869,16 @@ static struct phy_driver ksphy_driver[] = {
>  	.config_init	= kszphy_config_init,
>  	.suspend	= genphy_suspend,
>  	.resume		= genphy_resume,
> +}, {
> +	.phy_id		= PHY_ID_KSZ9897,
> +	.phy_id_mask	= 0x00ffffff,

Here as well.

> +	.name		= "Microchip KSZ9897",
> +	/* PHY_BASIC_FEATURES */
> +	.config_init	= kszphy_config_init,
> +	.config_aneg	= ksz8873mll_config_aneg,
> +	.read_status	= ksz8873mll_read_status,
> +	.suspend	= genphy_suspend,
> +	.resume		= genphy_resume,
>  } };
>  
>  module_phy_driver(ksphy_driver);
> @@ -1888,11 +1898,12 @@ static struct mdio_device_id __maybe_unused micrel_tbl[] = {
>  	{ PHY_ID_KSZ8041, MICREL_PHY_ID_MASK },
>  	{ PHY_ID_KSZ8051, MICREL_PHY_ID_MASK },
>  	{ PHY_ID_KSZ8061, MICREL_PHY_ID_MASK },
> -	{ PHY_ID_KSZ8081, MICREL_PHY_ID_MASK },
> +	{ PHY_ID_KSZ8081, 0x00ffffff },

And here.

>  	{ PHY_ID_KSZ8873MLL, MICREL_PHY_ID_MASK },
>  	{ PHY_ID_KSZ886X, MICREL_PHY_ID_MASK },
>  	{ PHY_ID_LAN8814, MICREL_PHY_ID_MASK },
>  	{ PHY_ID_LAN8804, MICREL_PHY_ID_MASK },
> +	{ PHY_ID_KSZ9897, 0x00ffffff },

etc.

	Andrew