[PATCH 4/4] Marvell phy: add functions to suspend and resume both interfaces: fiber and copper links.

[Charles-Antoine Couret]

Signed-off-by: Charles-Antoine Couret <charles-antoine.cou...@nexvision.fr>
---
 drivers/net/phy/marvell.c | 73 +++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 71 insertions(+), 2 deletions(-)

diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index e05209b..ddb413a 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -1224,6 +1224,75 @@ error:
        phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_M1111_COPPER);
        return err;
 }
+
+/* marvell_suspend
+ *
+ * Some Marvell's phys have two modes: fiber and copper.
+ * Both need to be suspended
+ */
+static int marvell_suspend(struct phy_device *phydev)
+{
+       int err;
+
+       /* Suspend the fiber mode first */
+       if (!(phydev->supported & SUPPORTED_FIBRE)) {
+               err = phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_M1111_FIBER);
+               if (err < 0)
+                       goto error;
+
+               /* With the page set, use the generic suspend */
+               err = genphy_suspend(phydev);
+               if (err < 0)
+                       goto error;
+
+               /* Then, the copper link */
+               err = phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_M1111_COPPER);
+               if (err < 0)
+                       goto error;
+       }
+
+       /* With the page set, use the generic suspend */
+       return genphy_suspend(phydev);
+
+error:
+       phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_M1111_COPPER);
+       return err;
+}
+
+/* marvell_resume
+ *
+ * Some Marvell's phys have two modes: fiber and copper.
+ * Both need to be resumed
+ */
+static int marvell_resume(struct phy_device *phydev)
+{
+       int err;
+
+       /* Resume the fiber mode first */
+       if (!(phydev->supported & SUPPORTED_FIBRE)) {
+               err = phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_M1111_FIBER);
+               if (err < 0)
+                       goto error;
+
+               /* With the page set, use the generic resume */
+               err = genphy_resume(phydev);
+               if (err < 0)
+                       goto error;
+
+               /* Then, the copper link */
+               err = phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_M1111_COPPER);
+               if (err < 0)
+                       goto error;
+       }
+
+       /* With the page set, use the generic resume */
+       return genphy_resume(phydev);
+
+error:
+       phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_M1111_COPPER);
+       return err;
+}
+
 static int marvell_aneg_done(struct phy_device *phydev)
 {
        int retval = phy_read(phydev, MII_M1011_PHY_STATUS);
@@ -1611,8 +1680,8 @@ static struct phy_driver marvell_drivers[] = {
                .ack_interrupt = &marvell_ack_interrupt,
                .config_intr = &marvell_config_intr,
                .did_interrupt = &m88e1121_did_interrupt,
-               .resume = &genphy_resume,
-               .suspend = &genphy_suspend,
+               .resume = &marvell_resume,
+               .suspend = &marvell_suspend,
                .get_sset_count = marvell_get_sset_count,
                .get_strings = marvell_get_strings,
                .get_stats = marvell_get_stats,
-- 
2.7.4