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

From: Christophe Leroy <christophe.leroy@c-s.fr>
To: Andrew Lunn <andrew@lunn.ch>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Heiner Kallweit <hkallweit1@gmail.com>,
	"David S. Miller" <davem@davemloft.net>
Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Subject: [PATCH] net: phy: lxt: Add suspend/resume support to LXT971 and LXT973.
Date: Wed, 22 May 2019 10:01:07 +0000 (UTC)	[thread overview]
Message-ID: <cf280b7ab1f513f03d3908ac9ad194e819f170f5.1558519026.git.christophe.leroy@c-s.fr> (raw)

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.leroy@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

