diff mbox series

[net-next,v3,4/4] net: ethernet: renesas: rswitch: Add phy_power_{on,off}() calling

Message ID 20230127014812.1656340-5-yoshihiro.shimoda.uh@renesas.com (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series net: ethernet: renesas: rswitch: Modify initialization for SERDES and PHY | expand

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netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
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netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers warning 2 maintainers not CCed: michael@walle.cc s.shtylyov@omp.ru
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
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netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 31 lines checked
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Commit Message

Yoshihiro Shimoda Jan. 27, 2023, 1:48 a.m. UTC
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@renesas.com>
---
 drivers/net/ethernet/renesas/rswitch.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/renesas/rswitch.c b/drivers/net/ethernet/renesas/rswitch.c
index df8bc150f596..b4906e9eb50d 100644
--- a/drivers/net/ethernet/renesas/rswitch.c
+++ b/drivers/net/ethernet/renesas/rswitch.c
@@ -1161,12 +1161,20 @@  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,
@@ -1174,7 +1182,11 @@  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 = {