From c857486a4b6d5c9250832315341e5889fdcb03c3 Mon Sep 17 00:00:00 2001 From: Hubert Feurstein Date: Wed, 31 Jul 2019 10:23:48 +0200 Subject: net: dsa: mv88e6xxx: introduce invalid_port_mask in mv88e6xxx_info With this it is possible to mark certain chip ports as invalid. This is required for example for the MV88E6220 (which is in general a MV88E6250 with 7 ports) but the ports 2-4 are not routed to pins. If a user configures an invalid port, an error is returned. Signed-off-by: Hubert Feurstein Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- drivers/net/dsa/mv88e6xxx/chip.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'drivers/net/dsa/mv88e6xxx/chip.h') diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h index 2cc508a1cc32..359d258d7151 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.h +++ b/drivers/net/dsa/mv88e6xxx/chip.h @@ -106,6 +106,11 @@ struct mv88e6xxx_info { unsigned int g2_irqs; bool pvt; + /* Mark certain ports as invalid. This is required for example for the + * MV88E6220 (which is in general a MV88E6250 with 7 ports) but the + * ports 2-4 are not routet to pins. + */ + unsigned int invalid_port_mask; /* Multi-chip Addressing Mode. * Some chips respond to only 2 registers of its own SMI device address * when it is non-zero, and use indirect access to internal registers. @@ -571,6 +576,11 @@ static inline unsigned int mv88e6xxx_num_gpio(struct mv88e6xxx_chip *chip) return chip->info->num_gpio; } +static inline bool mv88e6xxx_is_invalid_port(struct mv88e6xxx_chip *chip, int port) +{ + return (chip->info->invalid_port_mask & BIT(port)) != 0; +} + int mv88e6xxx_read(struct mv88e6xxx_chip *chip, int addr, int reg, u16 *val); int mv88e6xxx_write(struct mv88e6xxx_chip *chip, int addr, int reg, u16 val); int mv88e6xxx_update(struct mv88e6xxx_chip *chip, int addr, int reg, -- cgit v1.2.3-59-g8ed1b