net: macb: ignore tx_clk if MII is used
authorMichael Walle <michael@walle.cc>
Wed, 20 Jan 2021 19:43:03 +0000 (20:43 +0100)
committerJakub Kicinski <kuba@kernel.org>
Fri, 22 Jan 2021 03:50:47 +0000 (19:50 -0800)
commit43e5763152e2d4679954da0d35029637f017b0b3
tree9f0bdf98f78d966e3f3b9a8c31cd269235cb4c24
parent19038523a7353e7413c5428f20376fa3ccd2c8e9
net: macb: ignore tx_clk if MII is used

If the MII interface is used, the PHY is the clock master, thus don't
set the clock rate. On Zynq-7000, this will prevent the following
warning:
  macb e000b000.ethernet eth0: unable to generate target frequency: 25000000 Hz

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20210120194303.28268-1-michael@walle.cc
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
drivers/net/ethernet/cadence/macb_main.c