From: Bartosz Golaszewski Date: Wed, 20 Jun 2018 08:03:56 +0000 (+0200) Subject: net: davinci_emac: match the mdio device against its compatible if possible X-Git-Tag: v4.19~718^2~27 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ea0820bb771175c7d4192fc6f5b5c56b3c6d5239;p=platform%2Fkernel%2Flinux-rpi.git net: davinci_emac: match the mdio device against its compatible if possible 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 Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c index a1a6445..f270bee 100644 --- 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_device *ndev, struct ifreq *ifrq, int cmd) 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); }