diff options
Diffstat (limited to 'drivers/macintosh/therm_adt746x.c')
-rw-r--r-- | drivers/macintosh/therm_adt746x.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/drivers/macintosh/therm_adt746x.c b/drivers/macintosh/therm_adt746x.c index fde377c60cca..5ff47ba7f2d0 100644 --- a/drivers/macintosh/therm_adt746x.c +++ b/drivers/macintosh/therm_adt746x.c @@ -79,6 +79,7 @@ struct thermostat { u8 limits[3]; int last_speed[2]; int last_var[2]; + int pwm_inv[2]; }; static enum {ADT7460, ADT7467} therm_type; @@ -124,6 +125,8 @@ read_reg(struct thermostat* th, int reg) return data; } +static struct i2c_driver thermostat_driver; + static int attach_thermostat(struct i2c_adapter *adapter) { @@ -148,7 +151,7 @@ attach_thermostat(struct i2c_adapter *adapter) * Let i2c-core delete that device on driver removal. * This is safe because i2c-core holds the core_lock mutex for us. */ - list_add_tail(&client->detected, &client->driver->clients); + list_add_tail(&client->detected, &thermostat_driver.clients); return 0; } @@ -227,19 +230,23 @@ static void write_fan_speed(struct thermostat *th, int speed, int fan) if (speed >= 0) { manual = read_reg(th, MANUAL_MODE[fan]); + manual &= ~INVERT_MASK; write_reg(th, MANUAL_MODE[fan], - (manual|MANUAL_MASK) & (~INVERT_MASK)); + manual | MANUAL_MASK | th->pwm_inv[fan]); write_reg(th, FAN_SPD_SET[fan], speed); } else { /* back to automatic */ if(therm_type == ADT7460) { manual = read_reg(th, MANUAL_MODE[fan]) & (~MANUAL_MASK); - + manual &= ~INVERT_MASK; + manual |= th->pwm_inv[fan]; write_reg(th, MANUAL_MODE[fan], manual|REM_CONTROL[fan]); } else { manual = read_reg(th, MANUAL_MODE[fan]); + manual &= ~INVERT_MASK; + manual |= th->pwm_inv[fan]; write_reg(th, MANUAL_MODE[fan], manual&(~AUTO_MASK)); } } @@ -385,7 +392,7 @@ static int probe_thermostat(struct i2c_client *client, i2c_set_clientdata(client, th); th->clt = client; - rc = read_reg(th, 0); + rc = read_reg(th, CONFIG_REG); if (rc < 0) { dev_err(&client->dev, "Thermostat failed to read config!\n"); kfree(th); @@ -416,6 +423,10 @@ static int probe_thermostat(struct i2c_client *client, thermostat = th; + /* record invert bit status because fw can corrupt it after suspend */ + th->pwm_inv[0] = read_reg(th, MANUAL_MODE[0]) & INVERT_MASK; + th->pwm_inv[1] = read_reg(th, MANUAL_MODE[1]) & INVERT_MASK; + /* be sure to really write fan speed the first time */ th->last_speed[0] = -2; th->last_speed[1] = -2; |