linux-kernel - [PATCH net-next 1/2] net: stmmac: Add support for multiple phy interface for integrated PCS

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Date: Fri, 24 May 2024 18:36:52 +0530
From: Sneh Shah <quic_snehshah@...cinc.com>
To: Vinod Koul <vkoul@...nel.org>, Bhupesh Sharma <bhupesh.sharma@...aro.org>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Jose Abreu <joabreu@...opsys.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>, netdev@...r.kernel.org,
        linux-arm-msm@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Andrew Halaney <ahalaney@...hat.com>,
        Russell King <linux@...linux.org.uk>
Cc: Sneh Shah <quic_snehshah@...cinc.com>, kernel@...cinc.com
Subject: [PATCH net-next 1/2] net: stmmac: Add support for multiple phy interface for integrated PCS

In case of integrated PCS ethernet does't have external PCS driver.
Currently stmmac supports multiple phy interfaces if there is external PCS.
Add a function to support mupliple phy interfaces when PCS is integrated.

Signed-off-by: Sneh Shah <quic_snehshah@...cinc.com>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 3 +++
 include/linux/stmmac.h                            | 1 +
 2 files changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index fe3498e86de9..765332627ad0 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -1231,6 +1231,9 @@ static int stmmac_phy_setup(struct stmmac_priv *priv)
 	 */
 	__set_bit(mode, priv->phylink_config.supported_interfaces);
 
+	if (priv->plat->get_interfaces)
+		priv->plat->get_interfaces(priv);
+
 	/* If we have an xpcs, it defines which PHY interfaces are supported. */
 	if (priv->hw->xpcs)
 		xpcs_get_interfaces(priv->hw->xpcs,
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index dfa1828cd756..66f8205b331e 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -278,6 +278,7 @@ struct plat_stmmacenet_data {
 	void (*serdes_powerdown)(struct net_device *ndev, void *priv);
 	void (*speed_mode_2500)(struct net_device *ndev, void *priv);
 	void (*ptp_clk_freq_config)(struct stmmac_priv *priv);
+	void (*get_interfaces)(struct stmmac_priv *priv);
 	int (*init)(struct platform_device *pdev, void *priv);
 	void (*exit)(struct platform_device *pdev, void *priv);
 	struct mac_device_info *(*setup)(void *priv);
-- 
2.17.1