NAME
mdiobus_read_nested - Nested version of the mdiobus_read function
SYNOPSIS
int mdiobus_read_nested(struct mii_bus * bus, int addr, u32 regnum);
ARGUMENTS
bus
the mii_bus struct
addr
the phy address
regnum
register number to read
DESCRIPTION
In case of nested MDIO bus access avoid lockdep false positives by using mutex_lock_nested.
NOTE
MUST NOT be called from interrupt context, because the bus read/write functions may wait for an interrupt to conclude the operation.