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openmptcprouter/root/target/linux/mediatek/patches-4.19/0025-net-dsa-mt7530-add-linking-to-mdio.patch
2019-05-31 18:56:59 +02:00

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From 0f5ff06adcb20916acaf55976975a8b8844e785a Mon Sep 17 00:00:00 2001
From: Frank Wunderlich <frank-w@public-files.de>
Date: Sat, 8 Dec 2018 20:59:40 +0100
Subject: [PATCH 25/77] net: dsa: mt7530 add linking to mdio
switch (7530) needs to to be linked to mdio-bus
based on
https://github.com/openwrt/openwrt/blob/master/target/linux/mediatek/patches-4.14/0045-net-dsa-mediatek-turn-into-platform-driver.patch
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
---
drivers/net/dsa/mt7530.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c
index 9690a9b59fce..8f95e22a33f6 100644
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -1349,7 +1349,7 @@ static int
mt7530_probe(struct mdio_device *mdiodev)
{
struct mt7530_priv *priv;
- struct device_node *dn;
+ struct device_node *dn, *mdio;
dn = mdiodev->dev.of_node;
@@ -1396,8 +1396,14 @@ mt7530_probe(struct mdio_device *mdiodev)
return PTR_ERR(priv->reset);
}
}
+ mdio = of_get_parent(dn);
+ if (!mdio)
+ return -EINVAL;
+
+ priv->bus = of_mdio_find_bus(mdio);
+ if (!priv->bus)
+ return -EPROBE_DEFER;
- priv->bus = mdiodev->bus;
priv->dev = &mdiodev->dev;
priv->ds->priv = priv;
priv->ds->ops = &mt7530_switch_ops;
--
2.19.1