| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.17 080/324] net: davinci_emac: match the mdio device against its compatible if possible | Date | Thu, 23 Aug 2018 09:52:26 +0200 |
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4.17-stable review patch. If anyone has any objections, please let me know.
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From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
[ Upstream commit ea0820bb771175c7d4192fc6f5b5c56b3c6d5239 ]
Device tree based systems without of_dev_auxdata will have the mdio device named differently than "davinci_mdio(.0)". In this case use the device's parent's compatible string for matching
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/net/ethernet/ti/davinci_emac.c | 4 ++++ 1 file changed, 4 insertions(+)
--- a/drivers/net/ethernet/ti/davinci_emac.c +++ b/drivers/net/ethernet/ti/davinci_emac.c @@ -1387,6 +1387,10 @@ static int emac_devioctl(struct net_devi static int match_first_device(struct device *dev, void *data) { + if (dev->parent && dev->parent->of_node) + return of_device_is_compatible(dev->parent->of_node, + "ti,davinci_mdio"); + return !strncmp(dev_name(dev), "davinci_mdio", 12); }
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