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[net-next,v9,4/6] net: stmmac: configure SerDes on mac_finish

Message ID 20250227121522.1802832-5-yong.liang.choong@linux.intel.com (mailing list archive)
State Accepted
Commit e654cfc718d451bdf6c1554efc945171239f03f5
Delegated to: Netdev Maintainers
Headers show
Series Enable SGMII and 2500BASEX interface mode switching for Intel platforms | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
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/build_tools success Errors and warnings before: 26 (+1) this patch: 26 (+1)
netdev/cc_maintainers warning 1 maintainers not CCed: 0x1207@gmail.com
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
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: 10 this patch: 10
netdev/checkpatch warning WARNING: line length of 84 exceeds 80 columns
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 36 this patch: 36
netdev/source_inline success Was 0 now: 0
netdev/contest success net-next-2025-02-28--03-00 (tests: 894)

Commit Message

Choong Yong Liang Feb. 27, 2025, 12:15 p.m. UTC 
SerDes will configure according to the provided interface mode after
finish a major reconfiguration of the interface mode.

Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Choong Yong Liang <yong.liang.choong@linux.intel.com>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 13 +++++++++++++
 include/linux/stmmac.h                            |  4 ++++
 2 files changed, 17 insertions(+)
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Patch

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 424fa2fe31c6..72ec2ef3907f 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -1086,6 +1086,18 @@  static int stmmac_mac_enable_tx_lpi(struct phylink_config *config, u32 timer,
 	return 0;
 }
 
+static int stmmac_mac_finish(struct phylink_config *config, unsigned int mode,
+			     phy_interface_t interface)
+{
+	struct net_device *ndev = to_net_dev(config->dev);
+	struct stmmac_priv *priv = netdev_priv(ndev);
+
+	if (priv->plat->mac_finish)
+		priv->plat->mac_finish(ndev, priv->plat->bsp_priv, mode, interface);
+
+	return 0;
+}
+
 static const struct phylink_mac_ops stmmac_phylink_mac_ops = {
 	.mac_get_caps = stmmac_mac_get_caps,
 	.mac_select_pcs = stmmac_mac_select_pcs,
@@ -1094,6 +1106,7 @@  static const struct phylink_mac_ops stmmac_phylink_mac_ops = {
 	.mac_link_up = stmmac_mac_link_up,
 	.mac_disable_tx_lpi = stmmac_mac_disable_tx_lpi,
 	.mac_enable_tx_lpi = stmmac_mac_enable_tx_lpi,
+	.mac_finish = stmmac_mac_finish,
 };
 
 /**
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index 6d2aa77ea963..af22a11c2b8a 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -236,6 +236,10 @@  struct plat_stmmacenet_data {
 	int (*serdes_powerup)(struct net_device *ndev, void *priv);
 	void (*serdes_powerdown)(struct net_device *ndev, void *priv);
 	void (*speed_mode_2500)(struct net_device *ndev, void *priv);
+	int (*mac_finish)(struct net_device *ndev,
+			  void *priv,
+			  unsigned int mode,
+			  phy_interface_t interface);
 	void (*ptp_clk_freq_config)(struct stmmac_priv *priv);
 	int (*init)(struct platform_device *pdev, void *priv);
 	void (*exit)(struct platform_device *pdev, void *priv);