ARM: imx6ul-14x14-evk: Fix suspend over nfs by phy

Right now attempting doing suspend/resume while root is mounted over NFS hangs on imx6ul-14x14-evk. This is happening because ksz8081 phy fixups are lost on resume.

Fix this by using equivalent devicetree properties instead of a phy fixup and handling those properties on resume in the micrel driver.

In theory it might now be possible to remove the phy fixup from mach-imx6ul entirely but it is possible that this would break other imx6ul boards which use the same phy. The solution would be to patch their dts but it's not clear how to identify affected boards.

This code is shared with imx6ull-14x14-evk but 6ull suspend needs an unrelated patch: https://lkml.org/lkml/2017/5/30/584

This is something of a corner case so there is no CC: stable.

Changes since v1: https://lkml.org/lkml/2017/5/30/672
* Split a kszphy_config_reset function for stuff shared between
config_init and resume. Calling config_init directly could be an option but on some HW variants it does extra stuff like parsing devicetree options. That would not be appropriate for resume code.

Leonard Crestez (2):
ARM: dts: imx6ul-14x14-evk: Add ksz8081 phy properties
net: phy: micrel: Restore led_mode and clk_sel on resume

 arch/arm/boot/dts/imx6ul-14x14-evk.dts |  6 +++++
 drivers/net/phy/micrel.c               | 42 ++++++++++++++++++++++------------
 2 files changed, 34 insertions(+), 14 deletions(-)

2.7.4