netdev - [PATCH 3/3] ethernet: stmmac: dwmac-rk: Make the phy clock could be used for external phy

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Message-Id: <20241224094124.3816698-3-kever.yang@rock-chips.com>
Date: Tue, 24 Dec 2024 17:41:24 +0800
From: Kever Yang <kever.yang@...k-chips.com>
To: heiko@...ech.de
Cc: linux-rockchip@...ts.infradead.org,
	David Wu <david.wu@...k-chips.com>,
	Kever Yang <kever.yang@...k-chips.com>,
	Jose Abreu <joabreu@...opsys.com>,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	"David S. Miller" <davem@...emloft.net>,
	Jakub Kicinski <kuba@...nel.org>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	Paolo Abeni <pabeni@...hat.com>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Alexandre Torgue <alexandre.torgue@...s.st.com>,
	linux-stm32@...md-mailman.stormreply.com,
	Eric Dumazet <edumazet@...gle.com>,
	linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 3/3] ethernet: stmmac: dwmac-rk: Make the phy clock could be used for external phy

From: David Wu <david.wu@...k-chips.com>

Use the phy_clk to prepare_enable and unprepare_disable related phy clock.

Signed-off-by: David Wu <david.wu@...k-chips.com>
Signed-off-by: Kever Yang <kever.yang@...k-chips.com>
---

 drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
index 2ce38bf205d4..506c7daefa63 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
@@ -1885,12 +1885,14 @@ static int rk_gmac_clk_init(struct plat_stmmacenet_data *plat)
 		clk_set_rate(bsp_priv->clk_mac, 50000000);
 	}
 
-	if (plat->phy_node && bsp_priv->integrated_phy) {
+	if (plat->phy_node) {
 		bsp_priv->clk_phy = of_clk_get(plat->phy_node, 0);
 		ret = PTR_ERR_OR_ZERO(bsp_priv->clk_phy);
 		if (ret)
 			return dev_err_probe(dev, ret, "Cannot get PHY clock\n");
-		clk_set_rate(bsp_priv->clk_phy, 50000000);
+		/* If it is not integrated_phy, clk_phy is optional */
+		if (bsp_priv->integrated_phy)
+			clk_set_rate(bsp_priv->clk_phy, 50000000);
 	}
 
 	return 0;
-- 
2.25.1