Re: [PATCH net-next v2 5/5] net-next: dsa: add dsa support for Mediatek MT7530 switch

From: Andrew Lunn
Date: Wed Mar 22 2017 - 14:30:16 EST


> +static int
> +core_read_mmd_indirect(struct mt7530_priv *priv, int prtad, int devad)
> +{
> + struct mii_bus *bus = priv->bus;
> + int value, ret;
> +
> + /* Write the desired MMD Devad */
> + ret = bus->write(bus, 0, MII_MMD_CTRL, devad);
> + if (ret < 0)
> + goto err;
> +
> + /* Write the desired MMD register address */
> + ret = bus->write(bus, 0, MII_MMD_DATA, prtad);
> + if (ret < 0)
> + goto err;
> +
> + /* Select the Function : DATA with no post increment */
> + ret = bus->write(bus, 0, MII_MMD_CTRL, (devad | MII_MMD_CTRL_NOINCR));
> + if (ret < 0)
> + goto err;

Hi Sean

This appear to be a copy of mmd_phy_indirect(). There are patches from
Russell King which made this a public function. Once Russell patches
make net-next, it would be nice to use mmd_phy_indirect(). But that
might be as a follow up patch, rather than now, depending on the order
of acceptance of the patches.

Andrew