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fsl/man: Inherit parent device and of_node

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[ Upstream commit a1a50c8e4c241a505b7270e1a3c6e50d94e794b1 ]

Junote Cai reported that he was not able to get a DSA setup involving the
Freescale DPAA/FMAN driver to work and narrowed it down to
of_find_net_device_by_node(). This function requires the network device's
device reference to be correctly set which is the case here, though we have
lost any device_node association there.

The problem is that dpaa_eth_add_device() allocates a "dpaa-ethernet" platform
device, and later on dpaa_eth_probe() is called but SET_NETDEV_DEV() won't be
propagating &pdev->dev.of_node properly. Fix this by inherenting both the parent
device and the of_node when dpaa_eth_add_device() creates the platform device.

Fixes: 3933961682a3 ("fsl/fman: Add FMan MAC driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Florian Fainelli 2017-08-22 15:24:47 -07:00 committed by Greg Kroah-Hartman
parent 1e39e5c6a2
commit 4d8ee1935b
1 changed files with 3 additions and 0 deletions
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3
drivers/net/ethernet/freescale/fman/mac.c
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@ -622,6 +622,9 @@ static struct platform_device *dpaa_eth_add_device(int fman_id,
goto no_mem;
}
pdev->dev.of_node = node;
pdev->dev.parent = priv->dev;
ret = platform_device_add_data(pdev, &data, sizeof(data));
if (ret)
goto err;