From: "Russell King (Oracle)" <linux@armlinux.org.uk>
To: Ioana Ciornei <ciorneiioana@gmail.com>
Cc: davem@davemloft.net, kuba@kernel.org, netdev@vger.kernel.org,
calvin.johnson@oss.nxp.com, andrew@lunn.ch, hkallweit1@gmail.com,
Ioana Ciornei <ioana.ciornei@nxp.com>
Subject: Re: [PATCH net-next] mdio: mdiobus: setup of_node for the MDIO device
Date: Tue, 15 Jun 2021 18:13:31 +0100 [thread overview]
Message-ID: <20210615171330.GW22278@shell.armlinux.org.uk> (raw)
In-Reply-To: <20210615154401.1274322-1-ciorneiioana@gmail.com>
On Tue, Jun 15, 2021 at 06:44:01PM +0300, Ioana Ciornei wrote:
> From: Ioana Ciornei <ioana.ciornei@nxp.com>
>
> By mistake, the of_node of the MDIO device was not setup in the patch
> linked below. As a consequence, any PHY driver that depends on the
> of_node in its probe callback was not be able to successfully finish its
> probe on a PHY, thus the Generic PHY driver was used instead.
>
> Fix this by actually setting up the of_node.
>
> Fixes: bc1bee3b87ee ("net: mdiobus: Introduce fwnode_mdiobus_register_phy()")
> Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
> ---
> drivers/net/mdio/fwnode_mdio.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/net/mdio/fwnode_mdio.c b/drivers/net/mdio/fwnode_mdio.c
> index e96766da8de4..283ddb1185bd 100644
> --- a/drivers/net/mdio/fwnode_mdio.c
> +++ b/drivers/net/mdio/fwnode_mdio.c
> @@ -65,6 +65,7 @@ int fwnode_mdiobus_phy_device_register(struct mii_bus *mdio,
> * can be looked up later
> */
> fwnode_handle_get(child);
> + phy->mdio.dev.of_node = to_of_node(child);
> phy->mdio.dev.fwnode = child;
Yes, this is something that was missed, but let's first look at what
other places to when setting up a device:
pdev->dev.fwnode = pdevinfo->fwnode;
pdev->dev.of_node = of_node_get(to_of_node(pdev->dev.fwnode));
pdev->dev.of_node_reused = pdevinfo->of_node_reused;
dev->dev.of_node = of_node_get(np);
dev->dev.fwnode = &np->fwnode;
dev->dev.of_node = of_node_get(node);
dev->dev.fwnode = &node->fwnode;
That seems to be pretty clear that an of_node_get() is also needed.
Thanks.
--
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!
next prev parent reply other threads:[~2021-06-15 17:13 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-15 15:44 [PATCH net-next] mdio: mdiobus: setup of_node for the MDIO device Ioana Ciornei
2021-06-15 16:19 ` Andrew Lunn
2021-06-15 16:49 ` Ioana Ciornei
2021-06-15 17:13 ` Russell King (Oracle) [this message]
2021-06-15 17:24 ` Ioana Ciornei
2021-06-15 18:25 ` Russell King (Oracle)
2021-06-15 18:31 ` Andrew Lunn
2021-06-15 21:09 ` Russell King (Oracle)
2021-06-15 21:21 ` Ioana Ciornei
2021-06-15 21:31 ` Andrew Lunn
2021-06-16 8:20 ` Ioana Ciornei
2021-06-16 9:40 ` Russell King (Oracle)
2021-06-16 11:01 ` Ioana Ciornei
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