diff options
| author | Vivien Didelot <vivien.didelot@savoirfairelinux.com> | 2017-07-17 13:03:40 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-07-18 11:10:57 -0700 |
| commit | d6c5e6aff50cadeab0b7e381ce50be836ae55097 (patch) | |
| tree | c37e048a7004c5d428859362dcc097250c77105b /drivers/net/dsa/mv88e6xxx/global2.c | |
| parent | 74e60241ce140ac8c312cde1dc823681c6a86f99 (diff) | |
net: dsa: mv88e6xxx: add number of Global 2 IRQs
Similarly to g1_irqs, add a g2_irqs member to the info structure to
indicates the presence of the Global 2 Interrupt Source and Mask
registers.
At the same time, provide helpers and document the registers since they
differ a bit between 88E6352 and 88E6390 families.
This allows us to get rid of the MV88E6XXX_FLAG_G2_INT flag.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa/mv88e6xxx/global2.c')
| -rw-r--r-- | drivers/net/dsa/mv88e6xxx/global2.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/global2.c b/drivers/net/dsa/mv88e6xxx/global2.c index 158d0f499874..be704c98dcbb 100644 --- a/drivers/net/dsa/mv88e6xxx/global2.c +++ b/drivers/net/dsa/mv88e6xxx/global2.c @@ -40,6 +40,21 @@ static int mv88e6xxx_g2_wait(struct mv88e6xxx_chip *chip, int reg, u16 mask) return mv88e6xxx_wait(chip, MV88E6XXX_G2, reg, mask); } +/* Offset 0x00: Interrupt Source Register */ + +static int mv88e6xxx_g2_int_source(struct mv88e6xxx_chip *chip, u16 *src) +{ + /* Read (and clear most of) the Interrupt Source bits */ + return mv88e6xxx_g2_read(chip, MV88E6XXX_G2_INT_SRC, src); +} + +/* Offset 0x01: Interrupt Mask Register */ + +static int mv88e6xxx_g2_int_mask(struct mv88e6xxx_chip *chip, u16 mask) +{ + return mv88e6xxx_g2_write(chip, MV88E6XXX_G2_INT_MASK, mask); +} + /* Offset 0x02: Management Enable 2x */ /* Offset 0x03: Management Enable 0x */ @@ -933,7 +948,7 @@ static irqreturn_t mv88e6xxx_g2_irq_thread_fn(int irq, void *dev_id) u16 reg; mutex_lock(&chip->reg_lock); - err = mv88e6xxx_g2_read(chip, MV88E6XXX_G2_INT_SOURCE, ®); + err = mv88e6xxx_g2_int_source(chip, ®); mutex_unlock(&chip->reg_lock); if (err) goto out; @@ -959,8 +974,11 @@ static void mv88e6xxx_g2_irq_bus_lock(struct irq_data *d) static void mv88e6xxx_g2_irq_bus_sync_unlock(struct irq_data *d) { struct mv88e6xxx_chip *chip = irq_data_get_irq_chip_data(d); + int err; - mv88e6xxx_g2_write(chip, MV88E6XXX_G2_INT_MASK, ~chip->g2_irq.masked); + err = mv88e6xxx_g2_int_mask(chip, ~chip->g2_irq.masked); + if (err) + dev_err(chip->dev, "failed to mask interrupts\n"); mutex_unlock(&chip->reg_lock); } |