diff options
Diffstat (limited to 'drivers/hwmon/w83627ehf.c')
| -rw-r--r-- | drivers/hwmon/w83627ehf.c | 56 |
1 files changed, 32 insertions, 24 deletions
diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c index c51ae2e17758..d9a9ec7dd84a 100644 --- a/drivers/hwmon/w83627ehf.c +++ b/drivers/hwmon/w83627ehf.c @@ -309,18 +309,16 @@ static inline int is_word_sized(u16 reg) || (reg & 0x00ff) == 0x55)); } -/* We assume that the default bank is 0, thus the following two functions do - nothing for registers which live in bank 0. For others, they respectively - set the bank register to the correct value (before the register is - accessed), and back to 0 (afterwards). */ +/* Registers 0x50-0x5f are banked */ static inline void w83627ehf_set_bank(struct w83627ehf_data *data, u16 reg) { - if (reg & 0xff00) { + if ((reg & 0x00f0) == 0x50) { outb_p(W83627EHF_REG_BANK, data->addr + ADDR_REG_OFFSET); outb_p(reg >> 8, data->addr + DATA_REG_OFFSET); } } +/* Not strictly necessary, but play it safe for now */ static inline void w83627ehf_reset_bank(struct w83627ehf_data *data, u16 reg) { if (reg & 0xff00) { @@ -421,6 +419,31 @@ static void w83627ehf_write_fan_div(struct w83627ehf_data *data, int nr) } } +static void w83627ehf_update_fan_div(struct w83627ehf_data *data) +{ + int i; + + i = w83627ehf_read_value(data, W83627EHF_REG_FANDIV1); + data->fan_div[0] = (i >> 4) & 0x03; + data->fan_div[1] = (i >> 6) & 0x03; + i = w83627ehf_read_value(data, W83627EHF_REG_FANDIV2); + data->fan_div[2] = (i >> 6) & 0x03; + i = w83627ehf_read_value(data, W83627EHF_REG_VBAT); + data->fan_div[0] |= (i >> 3) & 0x04; + data->fan_div[1] |= (i >> 4) & 0x04; + data->fan_div[2] |= (i >> 5) & 0x04; + if (data->has_fan & ((1 << 3) | (1 << 4))) { + i = w83627ehf_read_value(data, W83627EHF_REG_DIODE); + data->fan_div[3] = i & 0x03; + data->fan_div[4] = ((i >> 2) & 0x03) + | ((i >> 5) & 0x04); + } + if (data->has_fan & (1 << 3)) { + i = w83627ehf_read_value(data, W83627EHF_REG_SMI_OVT); + data->fan_div[3] |= (i >> 5) & 0x04; + } +} + static struct w83627ehf_data *w83627ehf_update_device(struct device *dev) { struct w83627ehf_data *data = dev_get_drvdata(dev); @@ -432,25 +455,7 @@ static struct w83627ehf_data *w83627ehf_update_device(struct device *dev) if (time_after(jiffies, data->last_updated + HZ + HZ/2) || !data->valid) { /* Fan clock dividers */ - i = w83627ehf_read_value(data, W83627EHF_REG_FANDIV1); - data->fan_div[0] = (i >> 4) & 0x03; - data->fan_div[1] = (i >> 6) & 0x03; - i = w83627ehf_read_value(data, W83627EHF_REG_FANDIV2); - data->fan_div[2] = (i >> 6) & 0x03; - i = w83627ehf_read_value(data, W83627EHF_REG_VBAT); - data->fan_div[0] |= (i >> 3) & 0x04; - data->fan_div[1] |= (i >> 4) & 0x04; - data->fan_div[2] |= (i >> 5) & 0x04; - if (data->has_fan & ((1 << 3) | (1 << 4))) { - i = w83627ehf_read_value(data, W83627EHF_REG_DIODE); - data->fan_div[3] = i & 0x03; - data->fan_div[4] = ((i >> 2) & 0x03) - | ((i >> 5) & 0x04); - } - if (data->has_fan & (1 << 3)) { - i = w83627ehf_read_value(data, W83627EHF_REG_SMI_OVT); - data->fan_div[3] |= (i >> 5) & 0x04; - } + w83627ehf_update_fan_div(data); /* Measured voltages and limits */ for (i = 0; i < data->in_num; i++) { @@ -1312,6 +1317,9 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev) if (!(i & (1 << 1)) && (!fan5pin)) data->has_fan |= (1 << 4); + /* Read fan clock dividers immediately */ + w83627ehf_update_fan_div(data); + /* Register sysfs hooks */ for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays); i++) if ((err = device_create_file(dev, |