net: mdio-uclass: name MDIO according to device-name property if preset
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>
diff --git a/net/mdio-uclass.c b/net/mdio-uclass.c
index 1c0d252..6f922e8 100644
--- a/net/mdio-uclass.c
+++ b/net/mdio-uclass.c
@@ -23,6 +23,17 @@
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