net: dsa: qca8k: improve internal mdio read/write bus access

Improve the internal mdio read/write bus access by caching the value
without accessing it for every read/write.

Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ansuel Smith 2021-05-14 23:00:12 +02:00 • committed by David S. Miller
commit b7ebac354d