[PATCH 4.19 117/361] net: dsa: mv88e6xxx: Fix writing to a PHY page.

Greg Kroah-Hartman
2018-11-12T00:10:08Z

From: Andrew Lunn <andrew@lunn.ch>

[ Upstream commit c309b158090d788e96ee597444965cb79b040484 ]

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@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/dsa/mv88e6xxx/phy.c | 3 +++
1 file changed, 3 insertions(+)

--- a/drivers/net/dsa/mv88e6xxx/phy.c
+++ b/drivers/net/dsa/mv88e6xxx/phy.c
@@ -110,6 +110,9 @@ int mv88e6xxx_phy_page_write(struct mv88
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);
}