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net: mdio-uclass: name MDIO according to device-name property if preset

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Use the optional property device-name to name the MDIO bus.  This works
around limitations with using the DT node name on devices such as
Armada-8040, which integrates two cp100 cores, both featuring MDIOs at the
same relative offsets and with the same DT node names.
The concept was originally proposed by Marvell as a custom property called
mdio-name specific to Marvell driver.  This patch uses the more generic
property device-name and moves this into MDIO class code so other can use
it as well.

Signed-off-by: Alex Marginean <alexm.osslist@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Alex Marginean 2019-07-25 12:33:17 +03:00 committed by Joe Hershberger
parent 259f7223f2
commit 6b3abc0482
1 changed files with 11 additions and 0 deletions
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11
net/mdio-uclass.c
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@ -23,6 +23,17 @@ void dm_mdio_probe_devices(void)
static int dm_mdio_post_bind(struct udevice *dev)
{
const char *dt_name;
/* set a custom name for the MDIO device, if present in DT */
if (ofnode_valid(dev->node)) {
dt_name = ofnode_read_string(dev->node, "device-name");
if (dt_name) {
debug("renaming dev %s to %s\n", dev->name, dt_name);
device_set_name(dev, dt_name);
}
}
/*
* MDIO command doesn't like spaces in names, don't allow them to keep
* it happy