diff options
| author | Holger Brunck <holger.brunck@hitachienergy.com> | 2022-02-10 18:48:23 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-02-11 11:21:34 +0000 |
| commit | 926eae604403acfa27ba5b072af458e87e634a50 (patch) | |
| tree | e7c52b7855cf4689ea5baee618d7f4cb13a373de /drivers/net/dsa/mv88e6xxx/chip.h | |
| parent | 066c4b6ba06392e5929ea2ebd17622090b500b58 (diff) | |
dsa: mv88e6xxx: make serdes SGMII/Fiber tx amplitude configurable
The mv88e6352, mv88e6240 and mv88e6176 have a serdes interface. This patch
allows to configure the output swing to a desired value in the
phy-handle of the port. The value which is peak to peak has to be
specified in microvolts. As the chips only supports eight dedicated
values we return EINVAL if the value in the DTS does not match one of
these values.
Signed-off-by: Holger Brunck <holger.brunck@hitachienergy.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Marek Behún <kabel@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa/mv88e6xxx/chip.h')
| -rw-r--r-- | drivers/net/dsa/mv88e6xxx/chip.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h index 12aa637779f5..30b92a265613 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.h +++ b/drivers/net/dsa/mv88e6xxx/chip.h @@ -588,6 +588,10 @@ struct mv88e6xxx_ops { void (*serdes_get_regs)(struct mv88e6xxx_chip *chip, int port, void *_p); + /* SERDES SGMII/Fiber Output Amplitude */ + int (*serdes_set_tx_amplitude)(struct mv88e6xxx_chip *chip, int port, + int val); + /* Address Translation Unit operations */ int (*atu_get_hash)(struct mv88e6xxx_chip *chip, u8 *hash); int (*atu_set_hash)(struct mv88e6xxx_chip *chip, u8 hash); |