netdev - Re: [PATCH v8 net-next] net: phy: Add Edge-rate driver for Microsemi PHYs.

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Message-ID: <20161005120702.GO5575@lunn.ch>
Date:   Wed, 5 Oct 2016 14:07:02 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Raju Lakkaraju <Raju.Lakkaraju@...rosemi.com>
Cc:     netdev@...r.kernel.org, devicetree@...r.kernel.org,
        f.fainelli@...il.com, Allan.Nielsen@...rosemi.com
Subject: Re: [PATCH v8 net-next] net: phy: Add Edge-rate driver for Microsemi
 PHYs.

> - As per review comment, Added DT vddmac, slowdown value error check. 

So i said an exact match, which this is not.

How about something like:

static u8 vsc85xx_edge_rate_magic_get(u16 vddmac, u8 slowdown)
{
	u8 vdd;
	u8 sd;

	for (vdd = 0; vdd < ARRAY_SIZE(edge_table); vdd++)
		if (edge_table[vdd].vddmac == vddmac)
			for (sd = 0; sd < MSCC_SLOWDOWN_MAX; sd++)
				if (edge_table[vdd].slowdown[sd] == slowdown)
					return (MSCC_SLOWDOWN_MAX - sd - 1);
 	return -EINVAL;
}

> @@ -197,15 +203,34 @@ static int vsc8531_of_init(struct phy_device *phydev)
  
  	rc = of_property_read_u16(of_node, "vsc8531,vddmac",
  				  &vsc8531->vddmac);
 	if (rc == -EINVAL)
 		vddmac = MSCC_VDDMAC_3300;

  	rc = of_property_read_u8(of_node, "vsc8531,edge-slowdown",
  				 &vsc8531->edge_slowdown);
 	if (rc == -EINVAL)
  		edge_slowdown = 0;

 	vsc8531->rate_magic = edge_rate_magic_get(vddmac, edge_slowdown);
	if (vsc8531->rate_magic < 0) {
 	   dev_err(phydev->dev, "Invalid vsc8531,vddmac or vsc8531,edge-slowdown");
	   return vsc8531->rate_magic;
        }

>  static int vsc8531_of_init(struct phy_device *phydev)
> @@ -232,8 +257,8 @@ static int vsc85xx_config_init(struct phy_device *phydev)
>  	if (rc)
>  		return rc;
>  
>  	rc = vsc85xx_edge_rate_cntl_set(phydev, vsc8531->rate_magic);
>  	if (rc)
>  		return rc;

	Andrew