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

From: Andrew Lunn <[email-masked]>
Date: Wed, 22 Mar 2017 19:30:02 +0100

> +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
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