linux/drivers/net/ethernet/cadence
Jaeden Amero 2c29b2354a net/macb: Only adjust tx_clk on link change
The PHY state machine (in drivers/net/phy/phy.c) will unconditionally
call phydev->adjust_link (macb_handle_link_change) when polling in the
PHY_CHANGELINK state. As currently written, macb always ends up
requesting a new tx_clk frequency in macb_handle_link_change. It is a
waste of time to request a new tx_clk frequency if the link state hasn't
changed, as the tx_clk will already be configured properly.

Let's only request a new tx_clk clock frequency when necessary.

Signed-off-by: Jaeden Amero <jaeden.amero@ni.com>
Cc: Josh Cartwright <joshc@ni.com>
Cc: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-12 23:04:32 -04:00
..
Kconfig net/macb: merge at91_ether driver into macb driver 2015-03-07 22:31:37 -05:00
macb.c net/macb: Only adjust tx_clk on link change 2015-03-12 23:04:32 -04:00
macb.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-03-09 23:38:02 -04:00
Makefile net/macb: merge at91_ether driver into macb driver 2015-03-07 22:31:37 -05:00