netdev - Re: [PATCH] net: phy: tja11xx: Add IRQ support to the driver

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Message-ID: <482063b4-8c0c-7944-6550-a73d0d9492be@gmail.com>
Date:   Tue, 28 May 2019 11:21:52 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Marek Vasut <marex@...x.de>, netdev@...r.kernel.org
Cc:     Andrew Lunn <andrew@...n.ch>, Guenter Roeck <linux@...ck-us.net>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Jean Delvare <jdelvare@...e.com>, linux-hwmon@...r.kernel.org
Subject: Re: [PATCH] net: phy: tja11xx: Add IRQ support to the driver

On 5/28/19 11:16 AM, Marek Vasut wrote:
> Add support for handling the TJA11xx PHY IRQ signal.
> 
> Signed-off-by: Marek Vasut <marex@...x.de>
> Cc: Andrew Lunn <andrew@...n.ch>
> Cc: Florian Fainelli <f.fainelli@...il.com>
> Cc: Guenter Roeck <linux@...ck-us.net>
> Cc: Heiner Kallweit <hkallweit1@...il.com>
> Cc: Jean Delvare <jdelvare@...e.com>
> Cc: linux-hwmon@...r.kernel.org
> ---
>  drivers/net/phy/nxp-tja11xx.c | 32 ++++++++++++++++++++++++++++++++
>  1 file changed, 32 insertions(+)
> 
> diff --git a/drivers/net/phy/nxp-tja11xx.c b/drivers/net/phy/nxp-tja11xx.c
> index b705d0bd798b..0be9fe9a9604 100644
> --- a/drivers/net/phy/nxp-tja11xx.c
> +++ b/drivers/net/phy/nxp-tja11xx.c
> @@ -40,6 +40,8 @@
>  #define MII_INTSRC_TEMP_ERR		BIT(1)
>  #define MII_INTSRC_UV_ERR		BIT(3)
>  
> +#define MII_INTEN			22
> +
>  #define MII_COMMSTAT			23
>  #define MII_COMMSTAT_LINK_UP		BIT(15)
>  
> @@ -239,6 +241,30 @@ static int tja11xx_read_status(struct phy_device *phydev)
>  	return 0;
>  }
>  
> +static int tja11xx_config_intr(struct phy_device *phydev)
> +{
> +	int ret;
> +
> +	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
> +		ret = phy_write(phydev, MII_INTEN, 0xcfef);

It would be nice to define the shifts and masks being used here. Other
than that, this looks good.
-- 
Florian