linux-kernel - [PATCH 3.12 01/83] net: mv643xx_eth: Add missing phy_addr

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Date:	Fri,  6 Dec 2013 13:50:51 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org,
	Jason Gunthorpe <jgunthorpe@...idianresearch.com>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	Arnaud Ebalard <arno@...isbad.org>,
	"David S. Miller" <davem@...emloft.net>
Subject: [PATCH 3.12 01/83] net: mv643xx_eth: Add missing phy_addr_set in DT mode

3.12-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jason Gunthorpe <jgunthorpe@...idianresearch.com>

Commit cc9d4598 'net: mv643xx_eth: use of_phy_connect if phy_node
present' made the call to phy_scan optional, if the DT has a link to
the phy node.

However phy_scan has the side effect of calling phy_addr_set, which
writes the phy MDIO address to the ethernet controller. If phy_addr_set
is not called, and the bootloader has not set the correct address then
the driver will fail to function.

Tested on Kirkwood.

Signed-off-by: Jason Gunthorpe <jgunthorpe@...idianresearch.com>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
Tested-by: Arnaud Ebalard <arno@...isbad.org>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/ethernet/marvell/mv643xx_eth.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -2890,6 +2890,7 @@ static int mv643xx_eth_probe(struct plat
 					 PHY_INTERFACE_MODE_GMII);
 		if (!mp->phy)
 			err = -ENODEV;
+		phy_addr_set(mp, mp->phy->addr);
 	} else if (pd->phy_addr != MV643XX_ETH_PHY_NONE) {
 		mp->phy = phy_scan(mp, pd->phy_addr);
 


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