[PATCH v2 0/2] net: phy: call phy_disable_interrupts() in phy_init_hw()

Jisheng Zhang
2020-06-23T07:43:03Z

We face an issue with rtl8211f, a pin is shared between INTB and PMEB,
and the PHY Register Accessible Interrupt is enabled by default, so
the INTB/PMEB pin is always active in polling mode case.

As Heiner pointed out "I was thinking about calling
phy_disable_interrupts() in phy_init_hw(), to have a defined init
state as we don't know in which state the PHY is if the PHY driver is
loaded. We shouldn't assume that it's the chip power-on defaults, BIOS
or boot loader could have changed this. Or in case of dual-boot
systems the other OS could leave the PHY in whatever state."

patch1 exports phy_disable_interrupts() so that it could be used in
phy_init_hw() to have a defined init state.

patch2 calls phy_disable_interrupts() in phy_init_hw() to have a
defined init state.

Since v1:
- EXPORT the correct symbol

Jisheng Zhang (2):
net: phy: export phy_disable_interrupts()
net: phy: call phy_disable_interrupts() in phy_init_hw()

drivers/net/phy/phy.c | 3 ++-
drivers/net/phy/phy_device.c | 7 +++++--
include/linux/phy.h | 1 +
3 files changed, 8 insertions(+), 3 deletions(-)

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2.27.0