[PATCH net-next v3 4/7] net: dsa: microchip: ksz9477: add Wake on PHY event support

[Oleksij Rempel]

KSZ9477 family of switches supports multiple PHY events:
- wake on Link Up
- wake on Energy Detect.
Since current UAPI can't differentiate between this PHY events, map all of them
to WAKE_PHY.

Signed-off-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
---
 drivers/net/dsa/microchip/ksz9477.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index 3d9b6d6083cf..8d51ec629d76 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c
@@ -112,7 +112,7 @@ void ksz9477_get_wol(struct ksz_device *dev, int port,
 	if (!(pme_conf & PME_ENABLE))
 		return;
 
-	wol->supported = WAKE_MAGIC;
+	wol->supported = WAKE_PHY | WAKE_MAGIC;
 
 	ret = ksz_pread8(dev, port, REG_PORT_PME_CTRL, &pme_ctrl);
 	if (ret)
@@ -120,6 +120,8 @@ void ksz9477_get_wol(struct ksz_device *dev, int port,
 
 	if (pme_ctrl & PME_WOL_MAGICPKT)
 		wol->wolopts |= WAKE_MAGIC;
+	if (pme_ctrl & (PME_WOL_LINKUP | PME_WOL_ENERGY))
+		wol->wolopts |= WAKE_PHY;
 }
 
 /**
@@ -142,7 +144,7 @@ int ksz9477_set_wol(struct ksz_device *dev, int port,
 	u8 pme_conf, pme_ctrl = 0;
 	int ret;
 
-	if (wol->wolopts & ~WAKE_MAGIC)
+	if (wol->wolopts & ~(WAKE_PHY | WAKE_MAGIC))
 		return -EINVAL;
 
 	ret = ksz_read8(dev, REG_SW_PME_CTRL, &pme_conf);
@@ -158,6 +160,8 @@ int ksz9477_set_wol(struct ksz_device *dev, int port,
 
 	if (wol->wolopts & WAKE_MAGIC)
 		pme_ctrl |= PME_WOL_MAGICPKT;
+	if (wol->wolopts & WAKE_PHY)
+		pme_ctrl |= PME_WOL_LINKUP | PME_WOL_ENERGY;
 
 	return ksz_pwrite8(dev, port, REG_PORT_PME_CTRL, pme_ctrl);
 }
-- 
2.39.2