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Message-Id: <20230110050206.116110-5-yoshihiro.shimoda.uh@renesas.com> Date: Tue, 10 Jan 2023 14:02:06 +0900 From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com> To: linux@...linux.org.uk, andrew@...n.ch, hkallweit1@...il.com, 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 v2 4/4] net: ethernet: 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. Notes that in-band mode will not work because the initialization is not completed. So, output error message if in-band mode. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com> --- drivers/net/ethernet/renesas/rswitch.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/net/ethernet/renesas/rswitch.c b/drivers/net/ethernet/renesas/rswitch.c index 5a8a0c48dfd3..c027c2be9151 100644 --- a/drivers/net/ethernet/renesas/rswitch.c +++ b/drivers/net/ethernet/renesas/rswitch.c @@ -1174,12 +1174,20 @@ static void rswitch_mac_config(struct phylink_config *config, unsigned int mode, const struct phylink_link_state *state) { + struct net_device *ndev = to_net_dev(config->dev); + + if (mode == MLO_AN_INBAND) + netdev_err(ndev, "Link up/down will not work because in-band mode\n"); } static void rswitch_mac_link_down(struct phylink_config *config, unsigned int mode, phy_interface_t interface) { + struct net_device *ndev = to_net_dev(config->dev); + struct rswitch_device *rdev = netdev_priv(ndev); + + phy_power_off(rdev->serdes); } static void rswitch_mac_link_up(struct phylink_config *config, @@ -1187,7 +1195,11 @@ static void rswitch_mac_link_up(struct phylink_config *config, phy_interface_t interface, int speed, int duplex, bool tx_pause, bool rx_pause) { + struct net_device *ndev = to_net_dev(config->dev); + struct rswitch_device *rdev = netdev_priv(ndev); + /* Current hardware cannot change speed at runtime */ + phy_power_on(rdev->serdes); } static const struct phylink_mac_ops rswitch_phylink_ops = { -- 2.25.1
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