linux-kernel - [PATCH] net: davinci_emac: Add support for fixed-link PHY

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Message-ID: <560117E0.20307@baylibre.com>
Date:	Tue, 22 Sep 2015 10:57:04 +0200
From:	Neil Armstrong <narmstrong@...libre.com>
To:	Tony Lindgren <tony@...mide.com>,
	"David S. Miller" <davem@...emloft.net>,
	Felipe Balbi <balbi@...com>,
	"Mark A. Greer" <mgreer@...malcreek.com>
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] net: davinci_emac: Add support for fixed-link PHY

In case the DaVinci Emac is directly connected to a
non-mdio PHY/device, it should be possible to provide
a fixed link configuration in the DT.

Signed-off-by: Neil Armstrong <narmstrong@...libre.com>
---
 drivers/net/ethernet/ti/davinci_emac.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c
index aeebc0a..6521dfb 100644
--- a/drivers/net/ethernet/ti/davinci_emac.c
+++ b/drivers/net/ethernet/ti/davinci_emac.c
@@ -1861,8 +1861,12 @@ davinci_emac_of_get_pdata(struct platform_device *pdev, struct emac_priv *priv)
 	pdata->no_bd_ram = of_property_read_bool(np, "ti,davinci-no-bd-ram");

 	priv->phy_node = of_parse_phandle(np, "phy-handle", 0);
-	if (!priv->phy_node)
-		pdata->phy_id = NULL;
+	if (!priv->phy_node) {
+		if (!of_phy_is_fixed_link(np))
+			pdata->phy_id = NULL;
+		else if (of_phy_register_fixed_link(np) >= 0)
+			priv->phy_node = of_node_get(np);
+	}

 	auxdata = pdev->dev.platform_data;
 	if (auxdata) {
-- 
1.9.1
--
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