[PATCH] net: phy: lxt: Add suspend/resume support to LXT971 and LXT973.

[Christophe Leroy]

All LXT PHYs implement the standard "power down" bit 11 of
BMCR, so this patch adds support using the generic
genphy_{suspend,resume} functions.

LXT970 is left aside because all registers get cleared upon
"power down" exit.

Fixes: 0f0ca340e57b ("phy: power management support")
Signed-off-by: Christophe Leroy <christophe.le...@c-s.fr>
---
 drivers/net/phy/lxt.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/phy/lxt.c b/drivers/net/phy/lxt.c
index 314486288119..356bd6472f49 100644
--- a/drivers/net/phy/lxt.c
+++ b/drivers/net/phy/lxt.c
@@ -262,6 +262,8 @@ static struct phy_driver lxt97x_driver[] = {
        /* PHY_BASIC_FEATURES */
        .ack_interrupt  = lxt971_ack_interrupt,
        .config_intr    = lxt971_config_intr,
+       .suspend        = genphy_suspend,
+       .resume         = genphy_resume,
 }, {
        .phy_id         = 0x00137a10,
        .name           = "LXT973-A2",
@@ -271,6 +273,8 @@ static struct phy_driver lxt97x_driver[] = {
        .probe          = lxt973_probe,
        .config_aneg    = lxt973_config_aneg,
        .read_status    = lxt973a2_read_status,
+       .suspend        = genphy_suspend,
+       .resume         = genphy_resume,
 }, {
        .phy_id         = 0x00137a10,
        .name           = "LXT973",
@@ -279,6 +283,8 @@ static struct phy_driver lxt97x_driver[] = {
        .flags          = 0,
        .probe          = lxt973_probe,
        .config_aneg    = lxt973_config_aneg,
+       .suspend        = genphy_suspend,
+       .resume         = genphy_resume,
 } };
 
 module_phy_driver(lxt97x_driver);
-- 
2.13.3