[PATCH v4 0/3] arm64: add ethernet to orange pi 3

Corentin Labbe
2022-11-15T07:36:24Z

Hello

2 sunxi board still does not have ethernet working, orangepi 1+ and
orangepi 3.
This is due to the fact thoses boards have a PHY which need 2 regulators.

A first attempt by Ondřej Jirman was made to support them was made by adding support in
stmmac driver:
https://lore.kernel.org/lkml/20190820145343.29108-6-megous@megous.com/
Proposal rejected, since regulators need to be handled by the PHY core.

My first tentative was to just add handling of phy and phy-io in
phy-core:
https://lore.kernel.org/netdev/20220509074857.195302-7-clabbe@baylibre.com/T/
But having hard-coded phy names was rejected.

Second tentative tryed the same path than clocks and clock-names for
regulators.
https://lore.kernel.org/netdev/0518eef1-75a6-fbfe-96d8-bb1fc4e5178a@linaro.org/t/
But using this was rejected by DT maintainers.

So v3 use a new regulator_bulk_get_all() which grab all supplies
properties in a DT node.
But this way could have some problem, a netdev driver could handle
already its PHY (like dwmac-sun8i already do) and so both phy-core and
the netdev will use both.
It is why phy-supply was renamed in ephy-supply in patch #3.

This serie was tested on whole range of board and PHY architecture:
- internal PHY
* sun8i-h3-orangepi-pc
- external PHY
* sun50i-h6-pine-h64
* sun8i-r40-bananapi-m2-ultra
* sun8i-a83t-bananapi-m3
* sun50i-a64-bananapi-m64
* sun50i-h6-orangepi-3
* sun50i-h5-nanopi-neo-plus2

The resume/suspend of PHY was tested.

Regards

changes since v1:
- Add regulator_bulk_get_all for ease handling of PHY regulators
- Removed all convertion patchs to keep DT compatibility.

Changes since v2:
- removed use of regulator-names and regulators list.

Changes since v3:
- fixes kbuild robot report

Corentin Labbe (2):
regulator: Add of_regulator_bulk_get_all
phy: handle optional regulator for PHY

Ondřej Jirman (1):
arm64: dts: allwinner: orange-pi-3: Enable ethernet

.../dts/allwinner/sun50i-h6-orangepi-3.dts | 38 ++++++++
drivers/net/mdio/fwnode_mdio.c | 31 ++++++-
drivers/net/phy/phy_device.c | 10 ++
drivers/regulator/of_regulator.c | 92 +++++++++++++++++++
include/linux/phy.h | 3 +
include/linux/regulator/consumer.h | 8 ++
6 files changed, 181 insertions(+), 1 deletion(-)

--
2.37.4