diff options
| -rw-r--r-- | drivers/hwmon/it87.c | 69 |
1 files changed, 36 insertions, 33 deletions
diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c index e8cbefb9c96d..48b48939d893 100644 --- a/drivers/hwmon/it87.c +++ b/drivers/hwmon/it87.c @@ -252,6 +252,8 @@ struct it87_devices { #define FEAT_TEMP_OFFSET (1 << 4) #define FEAT_TEMP_PECI (1 << 5) #define FEAT_TEMP_OLD_PECI (1 << 6) +#define FEAT_FAN16_CONFIG (1 << 7) /* Need to enable 16-bit fans */ +#define FEAT_FIVE_FANS (1 << 8) /* Supports five fans */ static const struct it87_devices it87_devices[] = { [it87] = { @@ -264,67 +266,71 @@ static const struct it87_devices it87_devices[] = { }, [it8716] = { .name = "it8716", - .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET, + .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET + | FEAT_FAN16_CONFIG | FEAT_FIVE_FANS, }, [it8718] = { .name = "it8718", .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET - | FEAT_TEMP_OLD_PECI, + | FEAT_TEMP_OLD_PECI | FEAT_FAN16_CONFIG | FEAT_FIVE_FANS, .old_peci_mask = 0x4, }, [it8720] = { .name = "it8720", .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET - | FEAT_TEMP_OLD_PECI, + | FEAT_TEMP_OLD_PECI | FEAT_FAN16_CONFIG | FEAT_FIVE_FANS, .old_peci_mask = 0x4, }, [it8721] = { .name = "it8721", .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS - | FEAT_TEMP_OFFSET | FEAT_TEMP_OLD_PECI | FEAT_TEMP_PECI, + | FEAT_TEMP_OFFSET | FEAT_TEMP_OLD_PECI | FEAT_TEMP_PECI + | FEAT_FAN16_CONFIG | FEAT_FIVE_FANS, .peci_mask = 0x05, .old_peci_mask = 0x02, /* Actually reports PCH */ }, [it8728] = { .name = "it8728", .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS - | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI, + | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_FIVE_FANS, .peci_mask = 0x07, }, [it8771] = { .name = "it8771", .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI, - /* PECI: guesswork */ - /* 12mV ADC (OHM) */ - /* 16 bit fans (OHM) */ + /* PECI: guesswork */ + /* 12mV ADC (OHM) */ + /* 16 bit fans (OHM) */ + /* three fans, always 16 bit (guesswork) */ .peci_mask = 0x07, }, [it8772] = { .name = "it8772", .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI, - /* PECI (coreboot) */ - /* 12mV ADC (HWSensors4, OHM) */ - /* 16 bit fans (HWSensors4, OHM) */ + /* PECI (coreboot) */ + /* 12mV ADC (HWSensors4, OHM) */ + /* 16 bit fans (HWSensors4, OHM) */ + /* three fans, always 16 bit (datasheet) */ .peci_mask = 0x07, }, [it8781] = { .name = "it8781", .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET - | FEAT_TEMP_OLD_PECI, + | FEAT_TEMP_OLD_PECI | FEAT_FAN16_CONFIG, .old_peci_mask = 0x4, }, [it8782] = { .name = "it8782", .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET - | FEAT_TEMP_OLD_PECI, + | FEAT_TEMP_OLD_PECI | FEAT_FAN16_CONFIG, .old_peci_mask = 0x4, }, [it8783] = { .name = "it8783", .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET - | FEAT_TEMP_OLD_PECI, + | FEAT_TEMP_OLD_PECI | FEAT_FAN16_CONFIG, .old_peci_mask = 0x4, }, [it8603] = { @@ -345,6 +351,8 @@ static const struct it87_devices it87_devices[] = { #define has_temp_old_peci(data, nr) \ (((data)->features & FEAT_TEMP_OLD_PECI) && \ ((data)->old_peci_mask & (1 << nr))) +#define has_fan16_config(data) ((data)->features & FEAT_FAN16_CONFIG) +#define has_five_fans(data) ((data)->features & FEAT_FIVE_FANS) struct it87_sio_data { enum chips type; @@ -2124,13 +2132,14 @@ static int it87_probe(struct platform_device *pdev) case it87: if (sio_data->revision >= 0x03) { data->features &= ~FEAT_OLD_AUTOPWM; - data->features |= FEAT_16BIT_FANS; + data->features |= FEAT_FAN16_CONFIG | FEAT_16BIT_FANS; } break; case it8712: if (sio_data->revision >= 0x08) { data->features &= ~FEAT_OLD_AUTOPWM; - data->features |= FEAT_16BIT_FANS; + data->features |= FEAT_FAN16_CONFIG | FEAT_16BIT_FANS | + FEAT_FIVE_FANS; } break; default: @@ -2463,12 +2472,8 @@ static void it87_init_device(struct platform_device *pdev) } data->has_fan = (data->fan_main_ctrl >> 4) & 0x07; - /* - * Set tachometers to 16-bit mode if needed. IT8603E, IT8728F, - * IT8771E (guesswork), and IT8772E have it by default. - */ - if (has_16bit_fans(data) && data->type != it8603 && data->type != it8728 - && data->type != it8771 && data->type != it8772) { + /* Set tachometers to 16-bit mode if needed */ + if (has_fan16_config(data)) { tmp = it87_read_value(data, IT87_REG_FAN_16BIT); if (~tmp & 0x07 & data->has_fan) { dev_dbg(&pdev->dev, @@ -2476,17 +2481,15 @@ static void it87_init_device(struct platform_device *pdev) it87_write_value(data, IT87_REG_FAN_16BIT, tmp | 0x07); } - /* - * IT8705F, IT8781F, IT8782F, and IT8783E/F only support - * three fans. - */ - if (data->type != it87 && data->type != it8781 && - data->type != it8782 && data->type != it8783) { - if (tmp & (1 << 4)) - data->has_fan |= (1 << 3); /* fan4 enabled */ - if (tmp & (1 << 5)) - data->has_fan |= (1 << 4); /* fan5 enabled */ - } + } + + /* Check for additional fans */ + if (has_five_fans(data)) { + tmp = it87_read_value(data, IT87_REG_FAN_16BIT); + if (tmp & (1 << 4)) + data->has_fan |= (1 << 3); /* fan4 enabled */ + if (tmp & (1 << 5)) + data->has_fan |= (1 << 4); /* fan5 enabled */ } /* Fan input pins may be used for alternative functions */ |
