netdev - [PATCH net-next 1/2] net: dsa: mv88e6xxx: Fix writing to a PHY page.

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Date:   Sun,  2 Sep 2018 18:13:14 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     David Miller <davem@...emloft.net>
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Vivien Didelot <vivien.didelot@...oirfairelinux.com>,
        Chris Healy <cphealy@...il.com>,
        netdev <netdev@...r.kernel.org>, Andrew Lunn <andrew@...n.ch>
Subject: [PATCH net-next 1/2] net: dsa: mv88e6xxx: Fix writing to a PHY page.

After changing to the needed page, actually write the value to the
register!

Fixes: 09cb7dfd3f14 ("net: dsa: mv88e6xxx: describe PHY page and SerDes")
Signed-off-by: Andrew Lunn <andrew@...n.ch>
---

It has been broken like this for over 2 years. So i don't think it has
been important until now. So i've decided not to submit it to net,
only net-next, were i do actually need this to work.
---
 drivers/net/dsa/mv88e6xxx/phy.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/dsa/mv88e6xxx/phy.c b/drivers/net/dsa/mv88e6xxx/phy.c
index 46af8052e535..152a65d46e0b 100644
--- a/drivers/net/dsa/mv88e6xxx/phy.c
+++ b/drivers/net/dsa/mv88e6xxx/phy.c
@@ -110,6 +110,9 @@ int mv88e6xxx_phy_page_write(struct mv88e6xxx_chip *chip, int phy,
 	err = mv88e6xxx_phy_page_get(chip, phy, page);
 	if (!err) {
 		err = mv88e6xxx_phy_write(chip, phy, MV88E6XXX_PHY_PAGE, page);
+		if (!err)
+			err = mv88e6xxx_phy_write(chip, phy, reg, val);
+
 		mv88e6xxx_phy_page_put(chip, phy);
 	}
 
-- 
2.19.0.rc1