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net: sfp: create/destroy I2C mdiobus before PHY probe/after PHY release

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Instead of configuring the I2C mdiobus when SFP driver is probed,
create/destroy the mdiobus before the PHY is probed for/after it is
released.

This way we can tell the mdio-i2c code which protocol to use for each
SFP transceiver.

Move the code that determines MDIO I2C protocol from
sfp_sm_probe_for_phy() to sfp_sm_mod_probe(), where most of the SFP ID
parsing is done. Don't allocate I2C bus if no PHY is expected.

Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Marek Behún
2022-09-30 16:21:08 +02:00
committed by David S. Miller
parent 13c8adcf22
commit e85b1347ac
2 changed files with 57 additions and 13 deletions
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6
include/linux/mdio/mdio-i2c.h
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@@ -11,6 +11,12 @@ struct device;
struct i2c_adapter;
struct mii_bus;
enum mdio_i2c_proto {
MDIO_I2C_NONE,
MDIO_I2C_MARVELL_C22,
MDIO_I2C_C45,
};
struct mii_bus *mdio_i2c_alloc(struct device *parent, struct i2c_adapter *i2c);
#endif