netdev - [PATCH net-next v5 4/5] net: renesas: rswitch: Add phy_power

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Date:   Wed,  1 Feb 2023 22:14:53 +0900
From:   Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
To:     davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com
Cc:     netdev@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
Subject: [PATCH net-next v5 4/5] net: renesas: rswitch: Add phy_power_{on,off}() calling

Some Ethernet PHYs (like marvell10g) will decide the host interface
mode by the media-side speed. So, the rswitch driver needs to
initialize one of the Ethernet SERDES (r8a779f0-eth-serdes) ports
after linked the Ethernet PHY up. The r8a779f0-eth-serdes driver has
.init() for initializing all ports and .power_on() for initializing
each port. So, add phy_power_{on,off} calling for it.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
---
 drivers/net/ethernet/renesas/rswitch.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/ethernet/renesas/rswitch.c b/drivers/net/ethernet/renesas/rswitch.c
index f8b3a81c0447..f1a0dd1098f9 100644
--- a/drivers/net/ethernet/renesas/rswitch.c
+++ b/drivers/net/ethernet/renesas/rswitch.c
@@ -1146,6 +1146,11 @@ static void rswitch_adjust_link(struct net_device *ndev)
 	/* Current hardware has a restriction not to change speed at runtime */
 	if (phydev->link != rdev->etha->link) {
 		phy_print_status(phydev);
+		if (phydev->link)
+			phy_power_on(rdev->serdes);
+		else
+			phy_power_off(rdev->serdes);
+
 		rdev->etha->link = phydev->link;
 	}
 }
-- 
2.25.1