From 98b8204626ac2837e927e79d3dfe77246e506c02 Mon Sep 17 00:00:00 2001 From: Neil Armstrong Date: Wed, 21 Apr 2021 10:58:01 +0200 Subject: [PATCH] net: designware: fix PHY reset with DM_MDIO The dw_eth_pdata is not accessible from the mdio device, it gets the mdio bus plat leading to random sleeps (-10174464 on Odroid-HC4). This moves the dw_mdio_reset function to a common one taking the ethernet device as parameter and use it from the dw_mdio_reset and dm_mdio variant functions. Fixes: 5160b4567c ("net: designware: add DM_MDIO support") Reported-by: Mark Kettenis Signed-off-by: Neil Armstrong Reviewed-by: Ramon Fried --- drivers/net/designware.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/drivers/net/designware.c b/drivers/net/designware.c index b8ba00b7c0..5d92257e74 100644 --- a/drivers/net/designware.c +++ b/drivers/net/designware.c @@ -91,9 +91,8 @@ static int dw_mdio_write(struct mii_dev *bus, int addr, int devad, int reg, } #if defined(CONFIG_DM_ETH) && CONFIG_IS_ENABLED(DM_GPIO) -static int dw_mdio_reset(struct mii_dev *bus) +static int __dw_mdio_reset(struct udevice *dev) { - struct udevice *dev = bus->priv; struct dw_eth_dev *priv = dev_get_priv(dev); struct dw_eth_pdata *pdata = dev_get_plat(dev); int ret; @@ -122,6 +121,13 @@ static int dw_mdio_reset(struct mii_dev *bus) return 0; } + +static int dw_mdio_reset(struct mii_dev *bus) +{ + struct udevice *dev = bus->priv; + + return __dw_mdio_reset(dev); +} #endif #if IS_ENABLED(CONFIG_DM_MDIO) @@ -142,9 +148,10 @@ int designware_eth_mdio_write(struct udevice *mdio_dev, int addr, int devad, int #if CONFIG_IS_ENABLED(DM_GPIO) int designware_eth_mdio_reset(struct udevice *mdio_dev) { - struct mdio_perdev_priv *pdata = dev_get_uclass_priv(mdio_dev); + struct mdio_perdev_priv *mdio_pdata = dev_get_uclass_priv(mdio_dev); + struct udevice *dev = mdio_pdata->mii_bus->priv; - return dw_mdio_reset(pdata->mii_bus); + return __dw_mdio_reset(dev->parent); } #endif