From: Maksim Kiselev <bigunclemax@gmail.com>
Date: Sat, 20 Jan 2024 16:26:24 +0000 (+0300)
Subject: net: sun8i-emac: Add support for fixed-link phy
X-Git-Url: http://git.dujemihanovic.xyz/%22http:/www.sics.se/static/git-favicon.png?a=commitdiff_plain;h=2bfab76f4c73536717f6c6cda2dcb2a60bb25ece;p=u-boot.git

net: sun8i-emac: Add support for fixed-link phy

Make the "phy-handle" property optional, which allows support
for a fixed-link phy configuration.

Thus if the "phy-handle" is present in a DT, then driver will work as
before. Otherwise, phyaddr initialization will not be necessary,
as it is not needed in case of a fixed-link config.

Signed-off-by: Maksim Kiselev <bigunclemax@gmail.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
---

diff --git a/drivers/net/sun8i_emac.c b/drivers/net/sun8i_emac.c
index a12f7e32e8..8bff4fe9a9 100644
--- a/drivers/net/sun8i_emac.c
+++ b/drivers/net/sun8i_emac.c
@@ -833,11 +833,8 @@ static int sun8i_emac_eth_of_to_plat(struct udevice *dev)
 	priv->use_internal_phy = false;
 
 	offset = fdtdec_lookup_phandle(gd->fdt_blob, node, "phy-handle");
-	if (offset < 0) {
-		debug("%s: Cannot find PHY address\n", __func__);
-		return -EINVAL;
-	}
-	priv->phyaddr = fdtdec_get_int(gd->fdt_blob, offset, "reg", -1);
+	if (offset >= 0)
+		priv->phyaddr = fdtdec_get_int(gd->fdt_blob, offset, "reg", -1);
 
 	pdata->phy_interface = dev_read_phy_mode(dev);
 	debug("phy interface %d\n", pdata->phy_interface);