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From:   Jose Abreu <Jose.Abreu@synopsys.com>
To:     netdev@vger.kernel.org
Cc:     Joao Pinto <Joao.Pinto@synopsys.com>,
        Jose Abreu <Jose.Abreu@synopsys.com>,
        Giuseppe Cavallaro <peppe.cavallaro@st.com>,
        Alexandre Torgue <alexandre.torgue@st.com>,
        Jose Abreu <Jose.Abreu@synopsys.com>,
        "David S. Miller" <davem@davemloft.net>,
        Maxime Coquelin <mcoquelin.stm32@gmail.com>,
        linux-stm32@st-md-mailman.stormreply.com,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        Heiko Stuebner <heiko@sntech.de>,
        "kernelci . org bot" <bot@kernelci.org>,
        Florian Fainelli <f.fainelli@gmail.com>,
        Sriram Dash <sriram.dash@samsung.com>
Subject: [PATCH net] net: stmmac: Fixed link does not need MDIO Bus
Date:   Tue,  7 Jan 2020 13:35:42 +0100
Message-Id: <5764e60da6d3af7e76c30f63b07f1a12b4787918.1578400471.git.Jose.Abreu@synopsys.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

When using fixed link we don't need the MDIO bus support.

Reported-by: Heiko Stuebner <heiko@sntech.de>
Reported-by: kernelci.org bot <bot@kernelci.org>
Fixes: d3e014ec7d5e ("net: stmmac: platform: Fix MDIO init for platforms without PHY")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>

---
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: Jose Abreu <joabreu@synopsys.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: netdev@vger.kernel.org
Cc: linux-stm32@st-md-mailman.stormreply.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: kernelci.org bot <bot@kernelci.org>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Sriram Dash <sriram.dash@samsung.com>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index cc8d7e7bf9ac..4775f49d7f3b 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -320,7 +320,7 @@ static int stmmac_mtl_setup(struct platform_device *pdev,
 static int stmmac_dt_phy(struct plat_stmmacenet_data *plat,
 			 struct device_node *np, struct device *dev)
 {
-	bool mdio = false;
+	bool mdio = !of_phy_is_fixed_link(np);
 	static const struct of_device_id need_mdio_ids[] = {
 		{ .compatible = "snps,dwc-qos-ethernet-4.10" },
 		{},
-- 
2.7.4