diff options
Diffstat (limited to 'drivers/net/dsa/mv88e6xxx/chip.c')
| -rw-r--r-- | drivers/net/dsa/mv88e6xxx/chip.c | 32 |
1 files changed, 11 insertions, 21 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index a230fcba5b64..014b52bd72f1 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -309,9 +309,9 @@ static int mv88e6xxx_serdes_write(struct mv88e6xxx_chip *chip, int reg, u16 val) static int mv88e6xxx_wait(struct mv88e6xxx_chip *chip, int addr, int reg, u16 mask) { - unsigned long timeout = jiffies + HZ / 10; + int i; - while (time_before(jiffies, timeout)) { + for (i = 0; i < 16; i++) { u16 val; int err; @@ -325,6 +325,7 @@ static int mv88e6xxx_wait(struct mv88e6xxx_chip *chip, int addr, int reg, usleep_range(1000, 2000); } + dev_err(chip->dev, "Timeout while waiting for switch\n"); return -ETIMEDOUT; } @@ -333,20 +334,12 @@ static int mv88e6xxx_update(struct mv88e6xxx_chip *chip, int addr, int reg, u16 update) { u16 val; - int i, err; + int err; /* Wait until the previous operation is completed */ - for (i = 0; i < 16; ++i) { - err = mv88e6xxx_read(chip, addr, reg, &val); - if (err) - return err; - - if (!(val & BIT(15))) - break; - } - - if (i == 16) - return -ETIMEDOUT; + err = mv88e6xxx_wait(chip, addr, reg, BIT(15)); + if (err) + return err; /* Set the Update bit to trigger a write operation */ val = BIT(15) | update; @@ -375,7 +368,7 @@ static int _mv88e6xxx_reg_write(struct mv88e6xxx_chip *chip, int addr, static int mv88e6xxx_ppu_disable(struct mv88e6xxx_chip *chip) { int ret; - unsigned long timeout; + int i; ret = _mv88e6xxx_reg_read(chip, REG_GLOBAL, GLOBAL_CONTROL); if (ret < 0) @@ -386,8 +379,7 @@ static int mv88e6xxx_ppu_disable(struct mv88e6xxx_chip *chip) if (ret) return ret; - timeout = jiffies + 1 * HZ; - while (time_before(jiffies, timeout)) { + for (i = 0; i < 16; i++) { ret = _mv88e6xxx_reg_read(chip, REG_GLOBAL, GLOBAL_STATUS); if (ret < 0) return ret; @@ -403,8 +395,7 @@ static int mv88e6xxx_ppu_disable(struct mv88e6xxx_chip *chip) static int mv88e6xxx_ppu_enable(struct mv88e6xxx_chip *chip) { - int ret, err; - unsigned long timeout; + int ret, err, i; ret = _mv88e6xxx_reg_read(chip, REG_GLOBAL, GLOBAL_CONTROL); if (ret < 0) @@ -415,8 +406,7 @@ static int mv88e6xxx_ppu_enable(struct mv88e6xxx_chip *chip) if (err) return err; - timeout = jiffies + 1 * HZ; - while (time_before(jiffies, timeout)) { + for (i = 0; i < 16; i++) { ret = _mv88e6xxx_reg_read(chip, REG_GLOBAL, GLOBAL_STATUS); if (ret < 0) return ret; |